/*
 * Copyright 2026 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
// Generated by the protocol buffer compiler.  DO NOT EDIT!
// NO CHECKED-IN PROTOBUF GENCODE
// source: google/pubsub/v1/pubsub.proto
// Protobuf Java Version: 4.33.2

package com.google.pubsub.v1;

/**
 *
 *
 * <pre>
 * A subscription resource. If none of `push_config`, `bigquery_config`, or
 * `cloud_storage_config` is set, then the subscriber will pull and ack messages
 * using API methods. At most one of these fields may be set.
 * </pre>
 *
 * Protobuf type {@code google.pubsub.v1.Subscription}
 */
@com.google.protobuf.Generated
public final class Subscription extends com.google.protobuf.GeneratedMessage
    implements
    // @@protoc_insertion_point(message_implements:google.pubsub.v1.Subscription)
    SubscriptionOrBuilder {
  private static final long serialVersionUID = 0L;

  static {
    com.google.protobuf.RuntimeVersion.validateProtobufGencodeVersion(
        com.google.protobuf.RuntimeVersion.RuntimeDomain.PUBLIC,
        /* major= */ 4,
        /* minor= */ 33,
        /* patch= */ 2,
        /* suffix= */ "",
        "Subscription");
  }

  // Use Subscription.newBuilder() to construct.
  private Subscription(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
    super(builder);
  }

  private Subscription() {
    name_ = "";
    topic_ = "";
    filter_ = "";
    state_ = 0;
    messageTransforms_ = java.util.Collections.emptyList();
  }

  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    return com.google.pubsub.v1.PubsubProto
        .internal_static_google_pubsub_v1_Subscription_descriptor;
  }

  @SuppressWarnings({"rawtypes"})
  @java.lang.Override
  protected com.google.protobuf.MapFieldReflectionAccessor internalGetMapFieldReflection(
      int number) {
    switch (number) {
      case 9:
        return internalGetLabels();
      case 26:
        return internalGetTags();
      default:
        throw new RuntimeException("Invalid map field number: " + number);
    }
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internalGetFieldAccessorTable() {
    return com.google.pubsub.v1.PubsubProto
        .internal_static_google_pubsub_v1_Subscription_fieldAccessorTable
        .ensureFieldAccessorsInitialized(
            com.google.pubsub.v1.Subscription.class,
            com.google.pubsub.v1.Subscription.Builder.class);
  }

  /**
   *
   *
   * <pre>
   * Possible states for a subscription.
   * </pre>
   *
   * Protobuf enum {@code google.pubsub.v1.Subscription.State}
   */
  public enum State implements com.google.protobuf.ProtocolMessageEnum {
    /**
     *
     *
     * <pre>
     * Default value. This value is unused.
     * </pre>
     *
     * <code>STATE_UNSPECIFIED = 0;</code>
     */
    STATE_UNSPECIFIED(0),
    /**
     *
     *
     * <pre>
     * The subscription can actively receive messages
     * </pre>
     *
     * <code>ACTIVE = 1;</code>
     */
    ACTIVE(1),
    /**
     *
     *
     * <pre>
     * The subscription cannot receive messages because of an error with the
     * resource to which it pushes messages. See the more detailed error state
     * in the corresponding configuration.
     * </pre>
     *
     * <code>RESOURCE_ERROR = 2;</code>
     */
    RESOURCE_ERROR(2),
    UNRECOGNIZED(-1),
    ;

    static {
      com.google.protobuf.RuntimeVersion.validateProtobufGencodeVersion(
          com.google.protobuf.RuntimeVersion.RuntimeDomain.PUBLIC,
          /* major= */ 4,
          /* minor= */ 33,
          /* patch= */ 2,
          /* suffix= */ "",
          "State");
    }

    /**
     *
     *
     * <pre>
     * Default value. This value is unused.
     * </pre>
     *
     * <code>STATE_UNSPECIFIED = 0;</code>
     */
    public static final int STATE_UNSPECIFIED_VALUE = 0;

    /**
     *
     *
     * <pre>
     * The subscription can actively receive messages
     * </pre>
     *
     * <code>ACTIVE = 1;</code>
     */
    public static final int ACTIVE_VALUE = 1;

    /**
     *
     *
     * <pre>
     * The subscription cannot receive messages because of an error with the
     * resource to which it pushes messages. See the more detailed error state
     * in the corresponding configuration.
     * </pre>
     *
     * <code>RESOURCE_ERROR = 2;</code>
     */
    public static final int RESOURCE_ERROR_VALUE = 2;

    public final int getNumber() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalArgumentException(
            "Can't get the number of an unknown enum value.");
      }
      return value;
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static State valueOf(int value) {
      return forNumber(value);
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     */
    public static State forNumber(int value) {
      switch (value) {
        case 0:
          return STATE_UNSPECIFIED;
        case 1:
          return ACTIVE;
        case 2:
          return RESOURCE_ERROR;
        default:
          return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap<State> internalGetValueMap() {
      return internalValueMap;
    }

    private static final com.google.protobuf.Internal.EnumLiteMap<State> internalValueMap =
        new com.google.protobuf.Internal.EnumLiteMap<State>() {
          public State findValueByNumber(int number) {
            return State.forNumber(number);
          }
        };

    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalStateException(
            "Can't get the descriptor of an unrecognized enum value.");
      }
      return getDescriptor().getValues().get(ordinal());
    }

    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
      return getDescriptor();
    }

    public static com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
      return com.google.pubsub.v1.Subscription.getDescriptor().getEnumTypes().get(0);
    }

    private static final State[] VALUES = values();

    public static State valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
      if (desc.getType() != getDescriptor()) {
        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
      }
      if (desc.getIndex() == -1) {
        return UNRECOGNIZED;
      }
      return VALUES[desc.getIndex()];
    }

    private final int value;

    private State(int value) {
      this.value = value;
    }

    // @@protoc_insertion_point(enum_scope:google.pubsub.v1.Subscription.State)
  }

  public interface AnalyticsHubSubscriptionInfoOrBuilder
      extends
      // @@protoc_insertion_point(interface_extends:google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo)
      com.google.protobuf.MessageOrBuilder {

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub listing resource.
     * Pattern:
     * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
     * </pre>
     *
     * <code>
     * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The listing.
     */
    java.lang.String getListing();

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub listing resource.
     * Pattern:
     * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
     * </pre>
     *
     * <code>
     * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The bytes for listing.
     */
    com.google.protobuf.ByteString getListingBytes();

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub subscription resource.
     * Pattern:
     * "projects/{project}/locations/{location}/subscriptions/{subscription}"
     * </pre>
     *
     * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The subscription.
     */
    java.lang.String getSubscription();

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub subscription resource.
     * Pattern:
     * "projects/{project}/locations/{location}/subscriptions/{subscription}"
     * </pre>
     *
     * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The bytes for subscription.
     */
    com.google.protobuf.ByteString getSubscriptionBytes();
  }

  /**
   *
   *
   * <pre>
   * Information about an associated [Analytics Hub
   * subscription](https://cloud.google.com/bigquery/docs/analytics-hub-manage-subscriptions).
   * </pre>
   *
   * Protobuf type {@code google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo}
   */
  public static final class AnalyticsHubSubscriptionInfo
      extends com.google.protobuf.GeneratedMessage
      implements
      // @@protoc_insertion_point(message_implements:google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo)
      AnalyticsHubSubscriptionInfoOrBuilder {
    private static final long serialVersionUID = 0L;

    static {
      com.google.protobuf.RuntimeVersion.validateProtobufGencodeVersion(
          com.google.protobuf.RuntimeVersion.RuntimeDomain.PUBLIC,
          /* major= */ 4,
          /* minor= */ 33,
          /* patch= */ 2,
          /* suffix= */ "",
          "AnalyticsHubSubscriptionInfo");
    }

    // Use AnalyticsHubSubscriptionInfo.newBuilder() to construct.
    private AnalyticsHubSubscriptionInfo(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
    }

    private AnalyticsHubSubscriptionInfo() {
      listing_ = "";
      subscription_ = "";
    }

    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
      return com.google.pubsub.v1.PubsubProto
          .internal_static_google_pubsub_v1_Subscription_AnalyticsHubSubscriptionInfo_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return com.google.pubsub.v1.PubsubProto
          .internal_static_google_pubsub_v1_Subscription_AnalyticsHubSubscriptionInfo_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.class,
              com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.Builder.class);
    }

    public static final int LISTING_FIELD_NUMBER = 1;

    @SuppressWarnings("serial")
    private volatile java.lang.Object listing_ = "";

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub listing resource.
     * Pattern:
     * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
     * </pre>
     *
     * <code>
     * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The listing.
     */
    @java.lang.Override
    public java.lang.String getListing() {
      java.lang.Object ref = listing_;
      if (ref instanceof java.lang.String) {
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        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        listing_ = s;
        return s;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub listing resource.
     * Pattern:
     * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
     * </pre>
     *
     * <code>
     * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The bytes for listing.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString getListingBytes() {
      java.lang.Object ref = listing_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b =
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        listing_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int SUBSCRIPTION_FIELD_NUMBER = 2;

    @SuppressWarnings("serial")
    private volatile java.lang.Object subscription_ = "";

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub subscription resource.
     * Pattern:
     * "projects/{project}/locations/{location}/subscriptions/{subscription}"
     * </pre>
     *
     * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The subscription.
     */
    @java.lang.Override
    public java.lang.String getSubscription() {
      java.lang.Object ref = subscription_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        subscription_ = s;
        return s;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. The name of the associated Analytics Hub subscription resource.
     * Pattern:
     * "projects/{project}/locations/{location}/subscriptions/{subscription}"
     * </pre>
     *
     * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The bytes for subscription.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString getSubscriptionBytes() {
      java.lang.Object ref = subscription_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        subscription_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
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    private byte memoizedIsInitialized = -1;

    @java.lang.Override
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      memoizedIsInitialized = 1;
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    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(listing_)) {
        com.google.protobuf.GeneratedMessage.writeString(output, 1, listing_);
      }
      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(subscription_)) {
        com.google.protobuf.GeneratedMessage.writeString(output, 2, subscription_);
      }
      getUnknownFields().writeTo(output);
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    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
        return true;
      }
      if (!(obj instanceof com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo)) {
        return super.equals(obj);
      }
      com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo other =
          (com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo) obj;

      if (!getListing().equals(other.getListing())) return false;
      if (!getSubscription().equals(other.getSubscription())) return false;
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      hash = (37 * hash) + LISTING_FIELD_NUMBER;
      hash = (53 * hash) + getListing().hashCode();
      hash = (37 * hash) + SUBSCRIPTION_FIELD_NUMBER;
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    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
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        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
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        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
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      return com.google.protobuf.GeneratedMessage.parseWithIOException(PARSER, input);
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    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
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        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessage.parseWithIOException(
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    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseDelimitedFrom(
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    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
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      return com.google.protobuf.GeneratedMessage.parseWithIOException(PARSER, input);
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessage.parseWithIOException(
          PARSER, input, extensionRegistry);
    }

    @java.lang.Override
    public Builder newBuilderForType() {
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    }

    public static Builder newBuilder() {
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    public static Builder newBuilder(
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      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
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    @java.lang.Override
    protected Builder newBuilderForType(com.google.protobuf.GeneratedMessage.BuilderParent parent) {
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    /**
     *
     *
     * <pre>
     * Information about an associated [Analytics Hub
     * subscription](https://cloud.google.com/bigquery/docs/analytics-hub-manage-subscriptions).
     * </pre>
     *
     * Protobuf type {@code google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo}
     */
    public static final class Builder extends com.google.protobuf.GeneratedMessage.Builder<Builder>
        implements
        // @@protoc_insertion_point(builder_implements:google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo)
        com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfoOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
        return com.google.pubsub.v1.PubsubProto
            .internal_static_google_pubsub_v1_Subscription_AnalyticsHubSubscriptionInfo_descriptor;
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      public Builder clear() {
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        listing_ = "";
        subscription_ = "";
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      }

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      @java.lang.Override
      public com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo buildPartial() {
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        if (bitField0_ != 0) {
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        onBuilt();
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      @java.lang.Override
      public Builder mergeFrom(com.google.protobuf.Message other) {
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      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        if (extensionRegistry == null) {
          throw new java.lang.NullPointerException();
        }
        try {
          boolean done = false;
          while (!done) {
            int tag = input.readTag();
            switch (tag) {
              case 0:
                done = true;
                break;
              case 10:
                {
                  listing_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000001;
                  break;
                } // case 10
              case 18:
                {
                  subscription_ = input.readStringRequireUtf8();
                  bitField0_ |= 0x00000002;
                  break;
                } // case 18
              default:
                {
                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                    done = true; // was an endgroup tag
                  }
                  break;
                } // default:
            } // switch (tag)
          } // while (!done)
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.unwrapIOException();
        } finally {
          onChanged();
        } // finally
        return this;
      }

      private int bitField0_;

      private java.lang.Object listing_ = "";

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub listing resource.
       * Pattern:
       * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
       * </pre>
       *
       * <code>
       * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
       * </code>
       *
       * @return The listing.
       */
      public java.lang.String getListing() {
        java.lang.Object ref = listing_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          listing_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub listing resource.
       * Pattern:
       * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
       * </pre>
       *
       * <code>
       * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
       * </code>
       *
       * @return The bytes for listing.
       */
      public com.google.protobuf.ByteString getListingBytes() {
        java.lang.Object ref = listing_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b =
              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
          listing_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub listing resource.
       * Pattern:
       * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
       * </pre>
       *
       * <code>
       * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
       * </code>
       *
       * @param value The listing to set.
       * @return This builder for chaining.
       */
      public Builder setListing(java.lang.String value) {
        if (value == null) {
          throw new NullPointerException();
        }
        listing_ = value;
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub listing resource.
       * Pattern:
       * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
       * </pre>
       *
       * <code>
       * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
       * </code>
       *
       * @return This builder for chaining.
       */
      public Builder clearListing() {
        listing_ = getDefaultInstance().getListing();
        bitField0_ = (bitField0_ & ~0x00000001);
        onChanged();
        return this;
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub listing resource.
       * Pattern:
       * "projects/{project}/locations/{location}/dataExchanges/{data_exchange}/listings/{listing}"
       * </pre>
       *
       * <code>
       * string listing = 1 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
       * </code>
       *
       * @param value The bytes for listing to set.
       * @return This builder for chaining.
       */
      public Builder setListingBytes(com.google.protobuf.ByteString value) {
        if (value == null) {
          throw new NullPointerException();
        }
        checkByteStringIsUtf8(value);
        listing_ = value;
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }

      private java.lang.Object subscription_ = "";

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub subscription resource.
       * Pattern:
       * "projects/{project}/locations/{location}/subscriptions/{subscription}"
       * </pre>
       *
       * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
       *
       * @return The subscription.
       */
      public java.lang.String getSubscription() {
        java.lang.Object ref = subscription_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          subscription_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub subscription resource.
       * Pattern:
       * "projects/{project}/locations/{location}/subscriptions/{subscription}"
       * </pre>
       *
       * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
       *
       * @return The bytes for subscription.
       */
      public com.google.protobuf.ByteString getSubscriptionBytes() {
        java.lang.Object ref = subscription_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b =
              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
          subscription_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub subscription resource.
       * Pattern:
       * "projects/{project}/locations/{location}/subscriptions/{subscription}"
       * </pre>
       *
       * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
       *
       * @param value The subscription to set.
       * @return This builder for chaining.
       */
      public Builder setSubscription(java.lang.String value) {
        if (value == null) {
          throw new NullPointerException();
        }
        subscription_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub subscription resource.
       * Pattern:
       * "projects/{project}/locations/{location}/subscriptions/{subscription}"
       * </pre>
       *
       * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
       *
       * @return This builder for chaining.
       */
      public Builder clearSubscription() {
        subscription_ = getDefaultInstance().getSubscription();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
        return this;
      }

      /**
       *
       *
       * <pre>
       * Optional. The name of the associated Analytics Hub subscription resource.
       * Pattern:
       * "projects/{project}/locations/{location}/subscriptions/{subscription}"
       * </pre>
       *
       * <code>string subscription = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
       *
       * @param value The bytes for subscription to set.
       * @return This builder for chaining.
       */
      public Builder setSubscriptionBytes(com.google.protobuf.ByteString value) {
        if (value == null) {
          throw new NullPointerException();
        }
        checkByteStringIsUtf8(value);
        subscription_ = value;
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo)
    }

    // @@protoc_insertion_point(class_scope:google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo)
    private static final com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
        DEFAULT_INSTANCE;

    static {
      DEFAULT_INSTANCE = new com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo();
    }

    public static com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
        getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser<AnalyticsHubSubscriptionInfo> PARSER =
        new com.google.protobuf.AbstractParser<AnalyticsHubSubscriptionInfo>() {
          @java.lang.Override
          public AnalyticsHubSubscriptionInfo parsePartialFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws com.google.protobuf.InvalidProtocolBufferException {
            Builder builder = newBuilder();
            try {
              builder.mergeFrom(input, extensionRegistry);
            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
              throw e.setUnfinishedMessage(builder.buildPartial());
            } catch (com.google.protobuf.UninitializedMessageException e) {
              throw e.asInvalidProtocolBufferException()
                  .setUnfinishedMessage(builder.buildPartial());
            } catch (java.io.IOException e) {
              throw new com.google.protobuf.InvalidProtocolBufferException(e)
                  .setUnfinishedMessage(builder.buildPartial());
            }
            return builder.buildPartial();
          }
        };

    public static com.google.protobuf.Parser<AnalyticsHubSubscriptionInfo> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<AnalyticsHubSubscriptionInfo> getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
        getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }
  }

  private int bitField0_;
  public static final int NAME_FIELD_NUMBER = 1;

  @SuppressWarnings("serial")
  private volatile java.lang.Object name_ = "";

  /**
   *
   *
   * <pre>
   * Required. Identifier. The name of the subscription. It must have the format
   * `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
   * start with a letter, and contain only letters (`[A-Za-z]`), numbers
   * (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
   * plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
   * in length, and it must not start with `"goog"`.
   * </pre>
   *
   * <code>
   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IDENTIFIER];
   * </code>
   *
   * @return The name.
   */
  @java.lang.Override
  public java.lang.String getName() {
    java.lang.Object ref = name_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      name_ = s;
      return s;
    }
  }

  /**
   *
   *
   * <pre>
   * Required. Identifier. The name of the subscription. It must have the format
   * `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
   * start with a letter, and contain only letters (`[A-Za-z]`), numbers
   * (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
   * plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
   * in length, and it must not start with `"goog"`.
   * </pre>
   *
   * <code>
   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IDENTIFIER];
   * </code>
   *
   * @return The bytes for name.
   */
  @java.lang.Override
  public com.google.protobuf.ByteString getNameBytes() {
    java.lang.Object ref = name_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      name_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int TOPIC_FIELD_NUMBER = 2;

  @SuppressWarnings("serial")
  private volatile java.lang.Object topic_ = "";

  /**
   *
   *
   * <pre>
   * Required. The name of the topic from which this subscription is receiving
   * messages. Format is `projects/{project}/topics/{topic}`. The value of this
   * field will be `_deleted-topic_` if the topic has been deleted.
   * </pre>
   *
   * <code>
   * string topic = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
   * </code>
   *
   * @return The topic.
   */
  @java.lang.Override
  public java.lang.String getTopic() {
    java.lang.Object ref = topic_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      topic_ = s;
      return s;
    }
  }

  /**
   *
   *
   * <pre>
   * Required. The name of the topic from which this subscription is receiving
   * messages. Format is `projects/{project}/topics/{topic}`. The value of this
   * field will be `_deleted-topic_` if the topic has been deleted.
   * </pre>
   *
   * <code>
   * string topic = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
   * </code>
   *
   * @return The bytes for topic.
   */
  @java.lang.Override
  public com.google.protobuf.ByteString getTopicBytes() {
    java.lang.Object ref = topic_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      topic_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int PUSH_CONFIG_FIELD_NUMBER = 4;
  private com.google.pubsub.v1.PushConfig pushConfig_;

  /**
   *
   *
   * <pre>
   * Optional. If push delivery is used with this subscription, this field is
   * used to configure it.
   * </pre>
   *
   * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the pushConfig field is set.
   */
  @java.lang.Override
  public boolean hasPushConfig() {
    return ((bitField0_ & 0x00000001) != 0);
  }

  /**
   *
   *
   * <pre>
   * Optional. If push delivery is used with this subscription, this field is
   * used to configure it.
   * </pre>
   *
   * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The pushConfig.
   */
  @java.lang.Override
  public com.google.pubsub.v1.PushConfig getPushConfig() {
    return pushConfig_ == null ? com.google.pubsub.v1.PushConfig.getDefaultInstance() : pushConfig_;
  }

  /**
   *
   *
   * <pre>
   * Optional. If push delivery is used with this subscription, this field is
   * used to configure it.
   * </pre>
   *
   * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.PushConfigOrBuilder getPushConfigOrBuilder() {
    return pushConfig_ == null ? com.google.pubsub.v1.PushConfig.getDefaultInstance() : pushConfig_;
  }

  public static final int BIGQUERY_CONFIG_FIELD_NUMBER = 18;
  private com.google.pubsub.v1.BigQueryConfig bigqueryConfig_;

  /**
   *
   *
   * <pre>
   * Optional. If delivery to BigQuery is used with this subscription, this
   * field is used to configure it.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the bigqueryConfig field is set.
   */
  @java.lang.Override
  public boolean hasBigqueryConfig() {
    return ((bitField0_ & 0x00000002) != 0);
  }

  /**
   *
   *
   * <pre>
   * Optional. If delivery to BigQuery is used with this subscription, this
   * field is used to configure it.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The bigqueryConfig.
   */
  @java.lang.Override
  public com.google.pubsub.v1.BigQueryConfig getBigqueryConfig() {
    return bigqueryConfig_ == null
        ? com.google.pubsub.v1.BigQueryConfig.getDefaultInstance()
        : bigqueryConfig_;
  }

  /**
   *
   *
   * <pre>
   * Optional. If delivery to BigQuery is used with this subscription, this
   * field is used to configure it.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.BigQueryConfigOrBuilder getBigqueryConfigOrBuilder() {
    return bigqueryConfig_ == null
        ? com.google.pubsub.v1.BigQueryConfig.getDefaultInstance()
        : bigqueryConfig_;
  }

  public static final int CLOUD_STORAGE_CONFIG_FIELD_NUMBER = 22;
  private com.google.pubsub.v1.CloudStorageConfig cloudStorageConfig_;

  /**
   *
   *
   * <pre>
   * Optional. If delivery to Google Cloud Storage is used with this
   * subscription, this field is used to configure it.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the cloudStorageConfig field is set.
   */
  @java.lang.Override
  public boolean hasCloudStorageConfig() {
    return ((bitField0_ & 0x00000004) != 0);
  }

  /**
   *
   *
   * <pre>
   * Optional. If delivery to Google Cloud Storage is used with this
   * subscription, this field is used to configure it.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The cloudStorageConfig.
   */
  @java.lang.Override
  public com.google.pubsub.v1.CloudStorageConfig getCloudStorageConfig() {
    return cloudStorageConfig_ == null
        ? com.google.pubsub.v1.CloudStorageConfig.getDefaultInstance()
        : cloudStorageConfig_;
  }

  /**
   *
   *
   * <pre>
   * Optional. If delivery to Google Cloud Storage is used with this
   * subscription, this field is used to configure it.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.CloudStorageConfigOrBuilder getCloudStorageConfigOrBuilder() {
    return cloudStorageConfig_ == null
        ? com.google.pubsub.v1.CloudStorageConfig.getDefaultInstance()
        : cloudStorageConfig_;
  }

  public static final int ACK_DEADLINE_SECONDS_FIELD_NUMBER = 5;
  private int ackDeadlineSeconds_ = 0;

  /**
   *
   *
   * <pre>
   * Optional. The approximate amount of time (on a best-effort basis) Pub/Sub
   * waits for the subscriber to acknowledge receipt before resending the
   * message. In the interval after the message is delivered and before it is
   * acknowledged, it is considered to be _outstanding_. During that time
   * period, the message will not be redelivered (on a best-effort basis).
   *
   * For pull subscriptions, this value is used as the initial value for the ack
   * deadline. To override this value for a given message, call
   * `ModifyAckDeadline` with the corresponding `ack_id` if using
   * non-streaming pull or send the `ack_id` in a
   * `StreamingModifyAckDeadlineRequest` if using streaming pull.
   * The minimum custom deadline you can specify is 10 seconds.
   * The maximum custom deadline you can specify is 600 seconds (10 minutes).
   * If this parameter is 0, a default value of 10 seconds is used.
   *
   * For push delivery, this value is also used to set the request timeout for
   * the call to the push endpoint.
   *
   * If the subscriber never acknowledges the message, the Pub/Sub
   * system will eventually redeliver the message.
   * </pre>
   *
   * <code>int32 ack_deadline_seconds = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The ackDeadlineSeconds.
   */
  @java.lang.Override
  public int getAckDeadlineSeconds() {
    return ackDeadlineSeconds_;
  }

  public static final int RETAIN_ACKED_MESSAGES_FIELD_NUMBER = 7;
  private boolean retainAckedMessages_ = false;

  /**
   *
   *
   * <pre>
   * Optional. Indicates whether to retain acknowledged messages. If true, then
   * messages are not expunged from the subscription's backlog, even if they are
   * acknowledged, until they fall out of the `message_retention_duration`
   * window. This must be true if you would like to [`Seek` to a timestamp]
   * (https://cloud.google.com/pubsub/docs/replay-overview#seek_to_a_time) in
   * the past to replay previously-acknowledged messages.
   * </pre>
   *
   * <code>bool retain_acked_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The retainAckedMessages.
   */
  @java.lang.Override
  public boolean getRetainAckedMessages() {
    return retainAckedMessages_;
  }

  public static final int MESSAGE_RETENTION_DURATION_FIELD_NUMBER = 8;
  private com.google.protobuf.Duration messageRetentionDuration_;

  /**
   *
   *
   * <pre>
   * Optional. How long to retain unacknowledged messages in the subscription's
   * backlog, from the moment a message is published. If `retain_acked_messages`
   * is true, then this also configures the retention of acknowledged messages,
   * and thus configures how far back in time a `Seek` can be done. Defaults to
   * 7 days. Cannot be more than 31 days or less than 10 minutes.
   * </pre>
   *
   * <code>
   * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the messageRetentionDuration field is set.
   */
  @java.lang.Override
  public boolean hasMessageRetentionDuration() {
    return ((bitField0_ & 0x00000008) != 0);
  }

  /**
   *
   *
   * <pre>
   * Optional. How long to retain unacknowledged messages in the subscription's
   * backlog, from the moment a message is published. If `retain_acked_messages`
   * is true, then this also configures the retention of acknowledged messages,
   * and thus configures how far back in time a `Seek` can be done. Defaults to
   * 7 days. Cannot be more than 31 days or less than 10 minutes.
   * </pre>
   *
   * <code>
   * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The messageRetentionDuration.
   */
  @java.lang.Override
  public com.google.protobuf.Duration getMessageRetentionDuration() {
    return messageRetentionDuration_ == null
        ? com.google.protobuf.Duration.getDefaultInstance()
        : messageRetentionDuration_;
  }

  /**
   *
   *
   * <pre>
   * Optional. How long to retain unacknowledged messages in the subscription's
   * backlog, from the moment a message is published. If `retain_acked_messages`
   * is true, then this also configures the retention of acknowledged messages,
   * and thus configures how far back in time a `Seek` can be done. Defaults to
   * 7 days. Cannot be more than 31 days or less than 10 minutes.
   * </pre>
   *
   * <code>
   * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.protobuf.DurationOrBuilder getMessageRetentionDurationOrBuilder() {
    return messageRetentionDuration_ == null
        ? com.google.protobuf.Duration.getDefaultInstance()
        : messageRetentionDuration_;
  }

  public static final int LABELS_FIELD_NUMBER = 9;

  private static final class LabelsDefaultEntryHolder {
    static final com.google.protobuf.MapEntry<java.lang.String, java.lang.String> defaultEntry =
        com.google.protobuf.MapEntry.<java.lang.String, java.lang.String>newDefaultInstance(
            com.google.pubsub.v1.PubsubProto
                .internal_static_google_pubsub_v1_Subscription_LabelsEntry_descriptor,
            com.google.protobuf.WireFormat.FieldType.STRING,
            "",
            com.google.protobuf.WireFormat.FieldType.STRING,
            "");
  }

  @SuppressWarnings("serial")
  private com.google.protobuf.MapField<java.lang.String, java.lang.String> labels_;

  private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetLabels() {
    if (labels_ == null) {
      return com.google.protobuf.MapField.emptyMapField(LabelsDefaultEntryHolder.defaultEntry);
    }
    return labels_;
  }

  public int getLabelsCount() {
    return internalGetLabels().getMap().size();
  }

  /**
   *
   *
   * <pre>
   * Optional. See [Creating and managing
   * labels](https://cloud.google.com/pubsub/docs/labels).
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
   */
  @java.lang.Override
  public boolean containsLabels(java.lang.String key) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    return internalGetLabels().getMap().containsKey(key);
  }

  /** Use {@link #getLabelsMap()} instead. */
  @java.lang.Override
  @java.lang.Deprecated
  public java.util.Map<java.lang.String, java.lang.String> getLabels() {
    return getLabelsMap();
  }

  /**
   *
   *
   * <pre>
   * Optional. See [Creating and managing
   * labels](https://cloud.google.com/pubsub/docs/labels).
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
   */
  @java.lang.Override
  public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
    return internalGetLabels().getMap();
  }

  /**
   *
   *
   * <pre>
   * Optional. See [Creating and managing
   * labels](https://cloud.google.com/pubsub/docs/labels).
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
   */
  @java.lang.Override
  public /* nullable */ java.lang.String getLabelsOrDefault(
      java.lang.String key,
      /* nullable */
      java.lang.String defaultValue) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    java.util.Map<java.lang.String, java.lang.String> map = internalGetLabels().getMap();
    return map.containsKey(key) ? map.get(key) : defaultValue;
  }

  /**
   *
   *
   * <pre>
   * Optional. See [Creating and managing
   * labels](https://cloud.google.com/pubsub/docs/labels).
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
   */
  @java.lang.Override
  public java.lang.String getLabelsOrThrow(java.lang.String key) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    java.util.Map<java.lang.String, java.lang.String> map = internalGetLabels().getMap();
    if (!map.containsKey(key)) {
      throw new java.lang.IllegalArgumentException();
    }
    return map.get(key);
  }

  public static final int ENABLE_MESSAGE_ORDERING_FIELD_NUMBER = 10;
  private boolean enableMessageOrdering_ = false;

  /**
   *
   *
   * <pre>
   * Optional. If true, messages published with the same `ordering_key` in
   * `PubsubMessage` will be delivered to the subscribers in the order in which
   * they are received by the Pub/Sub system. Otherwise, they may be delivered
   * in any order.
   * </pre>
   *
   * <code>bool enable_message_ordering = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The enableMessageOrdering.
   */
  @java.lang.Override
  public boolean getEnableMessageOrdering() {
    return enableMessageOrdering_;
  }

  public static final int EXPIRATION_POLICY_FIELD_NUMBER = 11;
  private com.google.pubsub.v1.ExpirationPolicy expirationPolicy_;

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies the conditions for this subscription's
   * expiration. A subscription is considered active as long as any connected
   * subscriber is successfully consuming messages from the subscription or is
   * issuing operations on the subscription. If `expiration_policy` is not set,
   * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
   * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
   * but `expiration_policy.ttl` is not set, the subscription never expires.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the expirationPolicy field is set.
   */
  @java.lang.Override
  public boolean hasExpirationPolicy() {
    return ((bitField0_ & 0x00000010) != 0);
  }

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies the conditions for this subscription's
   * expiration. A subscription is considered active as long as any connected
   * subscriber is successfully consuming messages from the subscription or is
   * issuing operations on the subscription. If `expiration_policy` is not set,
   * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
   * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
   * but `expiration_policy.ttl` is not set, the subscription never expires.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The expirationPolicy.
   */
  @java.lang.Override
  public com.google.pubsub.v1.ExpirationPolicy getExpirationPolicy() {
    return expirationPolicy_ == null
        ? com.google.pubsub.v1.ExpirationPolicy.getDefaultInstance()
        : expirationPolicy_;
  }

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies the conditions for this subscription's
   * expiration. A subscription is considered active as long as any connected
   * subscriber is successfully consuming messages from the subscription or is
   * issuing operations on the subscription. If `expiration_policy` is not set,
   * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
   * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
   * but `expiration_policy.ttl` is not set, the subscription never expires.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.ExpirationPolicyOrBuilder getExpirationPolicyOrBuilder() {
    return expirationPolicy_ == null
        ? com.google.pubsub.v1.ExpirationPolicy.getDefaultInstance()
        : expirationPolicy_;
  }

  public static final int FILTER_FIELD_NUMBER = 12;

  @SuppressWarnings("serial")
  private volatile java.lang.Object filter_ = "";

  /**
   *
   *
   * <pre>
   * Optional. An expression written in the Pub/Sub [filter
   * language](https://cloud.google.com/pubsub/docs/filtering). If non-empty,
   * then only `PubsubMessage`s whose `attributes` field matches the filter are
   * delivered on this subscription. If empty, then no messages are filtered
   * out.
   * </pre>
   *
   * <code>string filter = 12 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The filter.
   */
  @java.lang.Override
  public java.lang.String getFilter() {
    java.lang.Object ref = filter_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      filter_ = s;
      return s;
    }
  }

  /**
   *
   *
   * <pre>
   * Optional. An expression written in the Pub/Sub [filter
   * language](https://cloud.google.com/pubsub/docs/filtering). If non-empty,
   * then only `PubsubMessage`s whose `attributes` field matches the filter are
   * delivered on this subscription. If empty, then no messages are filtered
   * out.
   * </pre>
   *
   * <code>string filter = 12 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The bytes for filter.
   */
  @java.lang.Override
  public com.google.protobuf.ByteString getFilterBytes() {
    java.lang.Object ref = filter_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      filter_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int DEAD_LETTER_POLICY_FIELD_NUMBER = 13;
  private com.google.pubsub.v1.DeadLetterPolicy deadLetterPolicy_;

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies the conditions for dead lettering
   * messages in this subscription. If dead_letter_policy is not set, dead
   * lettering is disabled.
   *
   * The Pub/Sub service account associated with this subscriptions's
   * parent project (i.e.,
   * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
   * permission to Acknowledge() messages on this subscription.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the deadLetterPolicy field is set.
   */
  @java.lang.Override
  public boolean hasDeadLetterPolicy() {
    return ((bitField0_ & 0x00000020) != 0);
  }

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies the conditions for dead lettering
   * messages in this subscription. If dead_letter_policy is not set, dead
   * lettering is disabled.
   *
   * The Pub/Sub service account associated with this subscriptions's
   * parent project (i.e.,
   * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
   * permission to Acknowledge() messages on this subscription.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The deadLetterPolicy.
   */
  @java.lang.Override
  public com.google.pubsub.v1.DeadLetterPolicy getDeadLetterPolicy() {
    return deadLetterPolicy_ == null
        ? com.google.pubsub.v1.DeadLetterPolicy.getDefaultInstance()
        : deadLetterPolicy_;
  }

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies the conditions for dead lettering
   * messages in this subscription. If dead_letter_policy is not set, dead
   * lettering is disabled.
   *
   * The Pub/Sub service account associated with this subscriptions's
   * parent project (i.e.,
   * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
   * permission to Acknowledge() messages on this subscription.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.DeadLetterPolicyOrBuilder getDeadLetterPolicyOrBuilder() {
    return deadLetterPolicy_ == null
        ? com.google.pubsub.v1.DeadLetterPolicy.getDefaultInstance()
        : deadLetterPolicy_;
  }

  public static final int RETRY_POLICY_FIELD_NUMBER = 14;
  private com.google.pubsub.v1.RetryPolicy retryPolicy_;

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies how Pub/Sub retries message delivery for
   * this subscription.
   *
   * If not set, the default retry policy is applied. This generally implies
   * that messages will be retried as soon as possible for healthy subscribers.
   * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
   * events for a given message.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the retryPolicy field is set.
   */
  @java.lang.Override
  public boolean hasRetryPolicy() {
    return ((bitField0_ & 0x00000040) != 0);
  }

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies how Pub/Sub retries message delivery for
   * this subscription.
   *
   * If not set, the default retry policy is applied. This generally implies
   * that messages will be retried as soon as possible for healthy subscribers.
   * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
   * events for a given message.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The retryPolicy.
   */
  @java.lang.Override
  public com.google.pubsub.v1.RetryPolicy getRetryPolicy() {
    return retryPolicy_ == null
        ? com.google.pubsub.v1.RetryPolicy.getDefaultInstance()
        : retryPolicy_;
  }

  /**
   *
   *
   * <pre>
   * Optional. A policy that specifies how Pub/Sub retries message delivery for
   * this subscription.
   *
   * If not set, the default retry policy is applied. This generally implies
   * that messages will be retried as soon as possible for healthy subscribers.
   * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
   * events for a given message.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.RetryPolicyOrBuilder getRetryPolicyOrBuilder() {
    return retryPolicy_ == null
        ? com.google.pubsub.v1.RetryPolicy.getDefaultInstance()
        : retryPolicy_;
  }

  public static final int DETACHED_FIELD_NUMBER = 15;
  private boolean detached_ = false;

  /**
   *
   *
   * <pre>
   * Optional. Indicates whether the subscription is detached from its topic.
   * Detached subscriptions don't receive messages from their topic and don't
   * retain any backlog. `Pull` and `StreamingPull` requests will return
   * FAILED_PRECONDITION. If the subscription is a push subscription, pushes to
   * the endpoint will not be made.
   * </pre>
   *
   * <code>bool detached = 15 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The detached.
   */
  @java.lang.Override
  public boolean getDetached() {
    return detached_;
  }

  public static final int ENABLE_EXACTLY_ONCE_DELIVERY_FIELD_NUMBER = 16;
  private boolean enableExactlyOnceDelivery_ = false;

  /**
   *
   *
   * <pre>
   * Optional. If true, Pub/Sub provides the following guarantees for the
   * delivery of a message with a given value of `message_id` on this
   * subscription:
   *
   * * The message sent to a subscriber is guaranteed not to be resent
   * before the message's acknowledgment deadline expires.
   * * An acknowledged message will not be resent to a subscriber.
   *
   * Note that subscribers may still receive multiple copies of a message
   * when `enable_exactly_once_delivery` is true if the message was published
   * multiple times by a publisher client. These copies are  considered distinct
   * by Pub/Sub and have distinct `message_id` values.
   * </pre>
   *
   * <code>bool enable_exactly_once_delivery = 16 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The enableExactlyOnceDelivery.
   */
  @java.lang.Override
  public boolean getEnableExactlyOnceDelivery() {
    return enableExactlyOnceDelivery_;
  }

  public static final int TOPIC_MESSAGE_RETENTION_DURATION_FIELD_NUMBER = 17;
  private com.google.protobuf.Duration topicMessageRetentionDuration_;

  /**
   *
   *
   * <pre>
   * Output only. Indicates the minimum duration for which a message is retained
   * after it is published to the subscription's topic. If this field is set,
   * messages published to the subscription's topic in the last
   * `topic_message_retention_duration` are always available to subscribers. See
   * the `message_retention_duration` field in `Topic`. This field is set only
   * in responses from the server; it is ignored if it is set in any requests.
   * </pre>
   *
   * <code>
   * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return Whether the topicMessageRetentionDuration field is set.
   */
  @java.lang.Override
  public boolean hasTopicMessageRetentionDuration() {
    return ((bitField0_ & 0x00000080) != 0);
  }

  /**
   *
   *
   * <pre>
   * Output only. Indicates the minimum duration for which a message is retained
   * after it is published to the subscription's topic. If this field is set,
   * messages published to the subscription's topic in the last
   * `topic_message_retention_duration` are always available to subscribers. See
   * the `message_retention_duration` field in `Topic`. This field is set only
   * in responses from the server; it is ignored if it is set in any requests.
   * </pre>
   *
   * <code>
   * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return The topicMessageRetentionDuration.
   */
  @java.lang.Override
  public com.google.protobuf.Duration getTopicMessageRetentionDuration() {
    return topicMessageRetentionDuration_ == null
        ? com.google.protobuf.Duration.getDefaultInstance()
        : topicMessageRetentionDuration_;
  }

  /**
   *
   *
   * <pre>
   * Output only. Indicates the minimum duration for which a message is retained
   * after it is published to the subscription's topic. If this field is set,
   * messages published to the subscription's topic in the last
   * `topic_message_retention_duration` are always available to subscribers. See
   * the `message_retention_duration` field in `Topic`. This field is set only
   * in responses from the server; it is ignored if it is set in any requests.
   * </pre>
   *
   * <code>
   * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   */
  @java.lang.Override
  public com.google.protobuf.DurationOrBuilder getTopicMessageRetentionDurationOrBuilder() {
    return topicMessageRetentionDuration_ == null
        ? com.google.protobuf.Duration.getDefaultInstance()
        : topicMessageRetentionDuration_;
  }

  public static final int STATE_FIELD_NUMBER = 19;
  private int state_ = 0;

  /**
   *
   *
   * <pre>
   * Output only. An output-only field indicating whether or not the
   * subscription can receive messages.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.Subscription.State state = 19 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return The enum numeric value on the wire for state.
   */
  @java.lang.Override
  public int getStateValue() {
    return state_;
  }

  /**
   *
   *
   * <pre>
   * Output only. An output-only field indicating whether or not the
   * subscription can receive messages.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.Subscription.State state = 19 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return The state.
   */
  @java.lang.Override
  public com.google.pubsub.v1.Subscription.State getState() {
    com.google.pubsub.v1.Subscription.State result =
        com.google.pubsub.v1.Subscription.State.forNumber(state_);
    return result == null ? com.google.pubsub.v1.Subscription.State.UNRECOGNIZED : result;
  }

  public static final int ANALYTICS_HUB_SUBSCRIPTION_INFO_FIELD_NUMBER = 23;
  private com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
      analyticsHubSubscriptionInfo_;

  /**
   *
   *
   * <pre>
   * Output only. Information about the associated Analytics Hub subscription.
   * Only set if the subscription is created by Analytics Hub.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return Whether the analyticsHubSubscriptionInfo field is set.
   */
  @java.lang.Override
  public boolean hasAnalyticsHubSubscriptionInfo() {
    return ((bitField0_ & 0x00000100) != 0);
  }

  /**
   *
   *
   * <pre>
   * Output only. Information about the associated Analytics Hub subscription.
   * Only set if the subscription is created by Analytics Hub.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return The analyticsHubSubscriptionInfo.
   */
  @java.lang.Override
  public com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
      getAnalyticsHubSubscriptionInfo() {
    return analyticsHubSubscriptionInfo_ == null
        ? com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.getDefaultInstance()
        : analyticsHubSubscriptionInfo_;
  }

  /**
   *
   *
   * <pre>
   * Output only. Information about the associated Analytics Hub subscription.
   * Only set if the subscription is created by Analytics Hub.
   * </pre>
   *
   * <code>
   * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfoOrBuilder
      getAnalyticsHubSubscriptionInfoOrBuilder() {
    return analyticsHubSubscriptionInfo_ == null
        ? com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.getDefaultInstance()
        : analyticsHubSubscriptionInfo_;
  }

  public static final int MESSAGE_TRANSFORMS_FIELD_NUMBER = 25;

  @SuppressWarnings("serial")
  private java.util.List<com.google.pubsub.v1.MessageTransform> messageTransforms_;

  /**
   *
   *
   * <pre>
   * Optional. Transforms to be applied to messages before they are delivered to
   * subscribers. Transforms are applied in the order specified.
   * </pre>
   *
   * <code>
   * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public java.util.List<com.google.pubsub.v1.MessageTransform> getMessageTransformsList() {
    return messageTransforms_;
  }

  /**
   *
   *
   * <pre>
   * Optional. Transforms to be applied to messages before they are delivered to
   * subscribers. Transforms are applied in the order specified.
   * </pre>
   *
   * <code>
   * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public java.util.List<? extends com.google.pubsub.v1.MessageTransformOrBuilder>
      getMessageTransformsOrBuilderList() {
    return messageTransforms_;
  }

  /**
   *
   *
   * <pre>
   * Optional. Transforms to be applied to messages before they are delivered to
   * subscribers. Transforms are applied in the order specified.
   * </pre>
   *
   * <code>
   * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public int getMessageTransformsCount() {
    return messageTransforms_.size();
  }

  /**
   *
   *
   * <pre>
   * Optional. Transforms to be applied to messages before they are delivered to
   * subscribers. Transforms are applied in the order specified.
   * </pre>
   *
   * <code>
   * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.MessageTransform getMessageTransforms(int index) {
    return messageTransforms_.get(index);
  }

  /**
   *
   *
   * <pre>
   * Optional. Transforms to be applied to messages before they are delivered to
   * subscribers. Transforms are applied in the order specified.
   * </pre>
   *
   * <code>
   * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.pubsub.v1.MessageTransformOrBuilder getMessageTransformsOrBuilder(int index) {
    return messageTransforms_.get(index);
  }

  public static final int TAGS_FIELD_NUMBER = 26;

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        com.google.protobuf.MapEntry.<java.lang.String, java.lang.String>newDefaultInstance(
            com.google.pubsub.v1.PubsubProto
                .internal_static_google_pubsub_v1_Subscription_TagsEntry_descriptor,
            com.google.protobuf.WireFormat.FieldType.STRING,
            "",
            com.google.protobuf.WireFormat.FieldType.STRING,
            "");
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  private com.google.protobuf.MapField<java.lang.String, java.lang.String> tags_;

  private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetTags() {
    if (tags_ == null) {
      return com.google.protobuf.MapField.emptyMapField(TagsDefaultEntryHolder.defaultEntry);
    }
    return tags_;
  }

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    return internalGetTags().getMap().size();
  }

  /**
   *
   *
   * <pre>
   * Optional. Input only. Immutable. Tag keys/values directly bound to this
   * resource. For example:
   * "123/environment": "production",
   * "123/costCenter": "marketing"
   * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
   * using tags with Pub/Sub resources.
   * </pre>
   *
   * <code>
   * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public boolean containsTags(java.lang.String key) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    return internalGetTags().getMap().containsKey(key);
  }

  /** Use {@link #getTagsMap()} instead. */
  @java.lang.Override
  @java.lang.Deprecated
  public java.util.Map<java.lang.String, java.lang.String> getTags() {
    return getTagsMap();
  }

  /**
   *
   *
   * <pre>
   * Optional. Input only. Immutable. Tag keys/values directly bound to this
   * resource. For example:
   * "123/environment": "production",
   * "123/costCenter": "marketing"
   * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
   * using tags with Pub/Sub resources.
   * </pre>
   *
   * <code>
   * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public java.util.Map<java.lang.String, java.lang.String> getTagsMap() {
    return internalGetTags().getMap();
  }

  /**
   *
   *
   * <pre>
   * Optional. Input only. Immutable. Tag keys/values directly bound to this
   * resource. For example:
   * "123/environment": "production",
   * "123/costCenter": "marketing"
   * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
   * using tags with Pub/Sub resources.
   * </pre>
   *
   * <code>
   * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public /* nullable */ java.lang.String getTagsOrDefault(
      java.lang.String key,
      /* nullable */
      java.lang.String defaultValue) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    java.util.Map<java.lang.String, java.lang.String> map = internalGetTags().getMap();
    return map.containsKey(key) ? map.get(key) : defaultValue;
  }

  /**
   *
   *
   * <pre>
   * Optional. Input only. Immutable. Tag keys/values directly bound to this
   * resource. For example:
   * "123/environment": "production",
   * "123/costCenter": "marketing"
   * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
   * using tags with Pub/Sub resources.
   * </pre>
   *
   * <code>
   * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public java.lang.String getTagsOrThrow(java.lang.String key) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    java.util.Map<java.lang.String, java.lang.String> map = internalGetTags().getMap();
    if (!map.containsKey(key)) {
      throw new java.lang.IllegalArgumentException();
    }
    return map.get(key);
  }

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  @java.lang.Override
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    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
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  public boolean equals(final java.lang.Object obj) {
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      return true;
    }
    if (!(obj instanceof com.google.pubsub.v1.Subscription)) {
      return super.equals(obj);
    }
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    if (!getTopic().equals(other.getTopic())) return false;
    if (hasPushConfig() != other.hasPushConfig()) return false;
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    if (hasBigqueryConfig()) {
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    }
    if (hasCloudStorageConfig() != other.hasCloudStorageConfig()) return false;
    if (hasCloudStorageConfig()) {
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    }
    if (getAckDeadlineSeconds() != other.getAckDeadlineSeconds()) return false;
    if (getRetainAckedMessages() != other.getRetainAckedMessages()) return false;
    if (hasMessageRetentionDuration() != other.hasMessageRetentionDuration()) return false;
    if (hasMessageRetentionDuration()) {
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    }
    if (!internalGetLabels().equals(other.internalGetLabels())) return false;
    if (getEnableMessageOrdering() != other.getEnableMessageOrdering()) return false;
    if (hasExpirationPolicy() != other.hasExpirationPolicy()) return false;
    if (hasExpirationPolicy()) {
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    if (hasDeadLetterPolicy() != other.hasDeadLetterPolicy()) return false;
    if (hasDeadLetterPolicy()) {
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    if (hasRetryPolicy()) {
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    }
    if (getDetached() != other.getDetached()) return false;
    if (getEnableExactlyOnceDelivery() != other.getEnableExactlyOnceDelivery()) return false;
    if (hasTopicMessageRetentionDuration() != other.hasTopicMessageRetentionDuration())
      return false;
    if (hasTopicMessageRetentionDuration()) {
      if (!getTopicMessageRetentionDuration().equals(other.getTopicMessageRetentionDuration()))
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    }
    if (state_ != other.state_) return false;
    if (hasAnalyticsHubSubscriptionInfo() != other.hasAnalyticsHubSubscriptionInfo()) return false;
    if (hasAnalyticsHubSubscriptionInfo()) {
      if (!getAnalyticsHubSubscriptionInfo().equals(other.getAnalyticsHubSubscriptionInfo()))
        return false;
    }
    if (!getMessageTransformsList().equals(other.getMessageTransformsList())) return false;
    if (!internalGetTags().equals(other.internalGetTags())) return false;
    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
    return true;
  }

  @java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + NAME_FIELD_NUMBER;
    hash = (53 * hash) + getName().hashCode();
    hash = (37 * hash) + TOPIC_FIELD_NUMBER;
    hash = (53 * hash) + getTopic().hashCode();
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    }
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  public static com.google.pubsub.v1.Subscription parseFrom(java.nio.ByteBuffer data)
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  public static com.google.pubsub.v1.Subscription parseFrom(byte[] data)
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  public static com.google.pubsub.v1.Subscription parseFrom(
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   * using API methods. At most one of these fields may be set.
   * </pre>
   *
   * Protobuf type {@code google.pubsub.v1.Subscription}
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      ackDeadlineSeconds_ = 0;
      retainAckedMessages_ = false;
      messageRetentionDuration_ = null;
      if (messageRetentionDurationBuilder_ != null) {
        messageRetentionDurationBuilder_.dispose();
        messageRetentionDurationBuilder_ = null;
      }
      internalGetMutableLabels().clear();
      enableMessageOrdering_ = false;
      expirationPolicy_ = null;
      if (expirationPolicyBuilder_ != null) {
        expirationPolicyBuilder_.dispose();
        expirationPolicyBuilder_ = null;
      }
      filter_ = "";
      deadLetterPolicy_ = null;
      if (deadLetterPolicyBuilder_ != null) {
        deadLetterPolicyBuilder_.dispose();
        deadLetterPolicyBuilder_ = null;
      }
      retryPolicy_ = null;
      if (retryPolicyBuilder_ != null) {
        retryPolicyBuilder_.dispose();
        retryPolicyBuilder_ = null;
      }
      detached_ = false;
      enableExactlyOnceDelivery_ = false;
      topicMessageRetentionDuration_ = null;
      if (topicMessageRetentionDurationBuilder_ != null) {
        topicMessageRetentionDurationBuilder_.dispose();
        topicMessageRetentionDurationBuilder_ = null;
      }
      state_ = 0;
      analyticsHubSubscriptionInfo_ = null;
      if (analyticsHubSubscriptionInfoBuilder_ != null) {
        analyticsHubSubscriptionInfoBuilder_.dispose();
        analyticsHubSubscriptionInfoBuilder_ = null;
      }
      if (messageTransformsBuilder_ == null) {
        messageTransforms_ = java.util.Collections.emptyList();
      } else {
        messageTransforms_ = null;
        messageTransformsBuilder_.clear();
      }
      bitField0_ = (bitField0_ & ~0x00080000);
      internalGetMutableTags().clear();
      return this;
    }

    @java.lang.Override
    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
      return com.google.pubsub.v1.PubsubProto
          .internal_static_google_pubsub_v1_Subscription_descriptor;
    }

    @java.lang.Override
    public com.google.pubsub.v1.Subscription getDefaultInstanceForType() {
      return com.google.pubsub.v1.Subscription.getDefaultInstance();
    }

    @java.lang.Override
    public com.google.pubsub.v1.Subscription build() {
      com.google.pubsub.v1.Subscription result = buildPartial();
      if (!result.isInitialized()) {
        throw newUninitializedMessageException(result);
      }
      return result;
    }

    @java.lang.Override
    public com.google.pubsub.v1.Subscription buildPartial() {
      com.google.pubsub.v1.Subscription result = new com.google.pubsub.v1.Subscription(this);
      buildPartialRepeatedFields(result);
      if (bitField0_ != 0) {
        buildPartial0(result);
      }
      onBuilt();
      return result;
    }

    private void buildPartialRepeatedFields(com.google.pubsub.v1.Subscription result) {
      if (messageTransformsBuilder_ == null) {
        if (((bitField0_ & 0x00080000) != 0)) {
          messageTransforms_ = java.util.Collections.unmodifiableList(messageTransforms_);
          bitField0_ = (bitField0_ & ~0x00080000);
        }
        result.messageTransforms_ = messageTransforms_;
      } else {
        result.messageTransforms_ = messageTransformsBuilder_.build();
      }
    }

    private void buildPartial0(com.google.pubsub.v1.Subscription result) {
      int from_bitField0_ = bitField0_;
      if (((from_bitField0_ & 0x00000001) != 0)) {
        result.name_ = name_;
      }
      if (((from_bitField0_ & 0x00000002) != 0)) {
        result.topic_ = topic_;
      }
      int to_bitField0_ = 0;
      if (((from_bitField0_ & 0x00000004) != 0)) {
        result.pushConfig_ = pushConfigBuilder_ == null ? pushConfig_ : pushConfigBuilder_.build();
        to_bitField0_ |= 0x00000001;
      }
      if (((from_bitField0_ & 0x00000008) != 0)) {
        result.bigqueryConfig_ =
            bigqueryConfigBuilder_ == null ? bigqueryConfig_ : bigqueryConfigBuilder_.build();
        to_bitField0_ |= 0x00000002;
      }
      if (((from_bitField0_ & 0x00000010) != 0)) {
        result.cloudStorageConfig_ =
            cloudStorageConfigBuilder_ == null
                ? cloudStorageConfig_
                : cloudStorageConfigBuilder_.build();
        to_bitField0_ |= 0x00000004;
      }
      if (((from_bitField0_ & 0x00000020) != 0)) {
        result.ackDeadlineSeconds_ = ackDeadlineSeconds_;
      }
      if (((from_bitField0_ & 0x00000040) != 0)) {
        result.retainAckedMessages_ = retainAckedMessages_;
      }
      if (((from_bitField0_ & 0x00000080) != 0)) {
        result.messageRetentionDuration_ =
            messageRetentionDurationBuilder_ == null
                ? messageRetentionDuration_
                : messageRetentionDurationBuilder_.build();
        to_bitField0_ |= 0x00000008;
      }
      if (((from_bitField0_ & 0x00000100) != 0)) {
        result.labels_ = internalGetLabels();
        result.labels_.makeImmutable();
      }
      if (((from_bitField0_ & 0x00000200) != 0)) {
        result.enableMessageOrdering_ = enableMessageOrdering_;
      }
      if (((from_bitField0_ & 0x00000400) != 0)) {
        result.expirationPolicy_ =
            expirationPolicyBuilder_ == null ? expirationPolicy_ : expirationPolicyBuilder_.build();
        to_bitField0_ |= 0x00000010;
      }
      if (((from_bitField0_ & 0x00000800) != 0)) {
        result.filter_ = filter_;
      }
      if (((from_bitField0_ & 0x00001000) != 0)) {
        result.deadLetterPolicy_ =
            deadLetterPolicyBuilder_ == null ? deadLetterPolicy_ : deadLetterPolicyBuilder_.build();
        to_bitField0_ |= 0x00000020;
      }
      if (((from_bitField0_ & 0x00002000) != 0)) {
        result.retryPolicy_ =
            retryPolicyBuilder_ == null ? retryPolicy_ : retryPolicyBuilder_.build();
        to_bitField0_ |= 0x00000040;
      }
      if (((from_bitField0_ & 0x00004000) != 0)) {
        result.detached_ = detached_;
      }
      if (((from_bitField0_ & 0x00008000) != 0)) {
        result.enableExactlyOnceDelivery_ = enableExactlyOnceDelivery_;
      }
      if (((from_bitField0_ & 0x00010000) != 0)) {
        result.topicMessageRetentionDuration_ =
            topicMessageRetentionDurationBuilder_ == null
                ? topicMessageRetentionDuration_
                : topicMessageRetentionDurationBuilder_.build();
        to_bitField0_ |= 0x00000080;
      }
      if (((from_bitField0_ & 0x00020000) != 0)) {
        result.state_ = state_;
      }
      if (((from_bitField0_ & 0x00040000) != 0)) {
        result.analyticsHubSubscriptionInfo_ =
            analyticsHubSubscriptionInfoBuilder_ == null
                ? analyticsHubSubscriptionInfo_
                : analyticsHubSubscriptionInfoBuilder_.build();
        to_bitField0_ |= 0x00000100;
      }
      if (((from_bitField0_ & 0x00100000) != 0)) {
        result.tags_ = internalGetTags();
        result.tags_.makeImmutable();
      }
      result.bitField0_ |= to_bitField0_;
    }

    @java.lang.Override
    public Builder mergeFrom(com.google.protobuf.Message other) {
      if (other instanceof com.google.pubsub.v1.Subscription) {
        return mergeFrom((com.google.pubsub.v1.Subscription) other);
      } else {
        super.mergeFrom(other);
        return this;
      }
    }

    public Builder mergeFrom(com.google.pubsub.v1.Subscription other) {
      if (other == com.google.pubsub.v1.Subscription.getDefaultInstance()) return this;
      if (!other.getName().isEmpty()) {
        name_ = other.name_;
        bitField0_ |= 0x00000001;
        onChanged();
      }
      if (!other.getTopic().isEmpty()) {
        topic_ = other.topic_;
        bitField0_ |= 0x00000002;
        onChanged();
      }
      if (other.hasPushConfig()) {
        mergePushConfig(other.getPushConfig());
      }
      if (other.hasBigqueryConfig()) {
        mergeBigqueryConfig(other.getBigqueryConfig());
      }
      if (other.hasCloudStorageConfig()) {
        mergeCloudStorageConfig(other.getCloudStorageConfig());
      }
      if (other.getAckDeadlineSeconds() != 0) {
        setAckDeadlineSeconds(other.getAckDeadlineSeconds());
      }
      if (other.getRetainAckedMessages() != false) {
        setRetainAckedMessages(other.getRetainAckedMessages());
      }
      if (other.hasMessageRetentionDuration()) {
        mergeMessageRetentionDuration(other.getMessageRetentionDuration());
      }
      internalGetMutableLabels().mergeFrom(other.internalGetLabels());
      bitField0_ |= 0x00000100;
      if (other.getEnableMessageOrdering() != false) {
        setEnableMessageOrdering(other.getEnableMessageOrdering());
      }
      if (other.hasExpirationPolicy()) {
        mergeExpirationPolicy(other.getExpirationPolicy());
      }
      if (!other.getFilter().isEmpty()) {
        filter_ = other.filter_;
        bitField0_ |= 0x00000800;
        onChanged();
      }
      if (other.hasDeadLetterPolicy()) {
        mergeDeadLetterPolicy(other.getDeadLetterPolicy());
      }
      if (other.hasRetryPolicy()) {
        mergeRetryPolicy(other.getRetryPolicy());
      }
      if (other.getDetached() != false) {
        setDetached(other.getDetached());
      }
      if (other.getEnableExactlyOnceDelivery() != false) {
        setEnableExactlyOnceDelivery(other.getEnableExactlyOnceDelivery());
      }
      if (other.hasTopicMessageRetentionDuration()) {
        mergeTopicMessageRetentionDuration(other.getTopicMessageRetentionDuration());
      }
      if (other.state_ != 0) {
        setStateValue(other.getStateValue());
      }
      if (other.hasAnalyticsHubSubscriptionInfo()) {
        mergeAnalyticsHubSubscriptionInfo(other.getAnalyticsHubSubscriptionInfo());
      }
      if (messageTransformsBuilder_ == null) {
        if (!other.messageTransforms_.isEmpty()) {
          if (messageTransforms_.isEmpty()) {
            messageTransforms_ = other.messageTransforms_;
            bitField0_ = (bitField0_ & ~0x00080000);
          } else {
            ensureMessageTransformsIsMutable();
            messageTransforms_.addAll(other.messageTransforms_);
          }
          onChanged();
        }
      } else {
        if (!other.messageTransforms_.isEmpty()) {
          if (messageTransformsBuilder_.isEmpty()) {
            messageTransformsBuilder_.dispose();
            messageTransformsBuilder_ = null;
            messageTransforms_ = other.messageTransforms_;
            bitField0_ = (bitField0_ & ~0x00080000);
            messageTransformsBuilder_ =
                com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders
                    ? internalGetMessageTransformsFieldBuilder()
                    : null;
          } else {
            messageTransformsBuilder_.addAllMessages(other.messageTransforms_);
          }
        }
      }
      internalGetMutableTags().mergeFrom(other.internalGetTags());
      bitField0_ |= 0x00100000;
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }

    @java.lang.Override
    public final boolean isInitialized() {
      return true;
    }

    @java.lang.Override
    public Builder mergeFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      if (extensionRegistry == null) {
        throw new java.lang.NullPointerException();
      }
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            case 10:
              {
                name_ = input.readStringRequireUtf8();
                bitField0_ |= 0x00000001;
                break;
              } // case 10
            case 18:
              {
                topic_ = input.readStringRequireUtf8();
                bitField0_ |= 0x00000002;
                break;
              } // case 18
            case 34:
              {
                input.readMessage(
                    internalGetPushConfigFieldBuilder().getBuilder(), extensionRegistry);
                bitField0_ |= 0x00000004;
                break;
              } // case 34
            case 40:
              {
                ackDeadlineSeconds_ = input.readInt32();
                bitField0_ |= 0x00000020;
                break;
              } // case 40
            case 56:
              {
                retainAckedMessages_ = input.readBool();
                bitField0_ |= 0x00000040;
                break;
              } // case 56
            case 66:
              {
                input.readMessage(
                    internalGetMessageRetentionDurationFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00000080;
                break;
              } // case 66
            case 74:
              {
                com.google.protobuf.MapEntry<java.lang.String, java.lang.String> labels__ =
                    input.readMessage(
                        LabelsDefaultEntryHolder.defaultEntry.getParserForType(),
                        extensionRegistry);
                internalGetMutableLabels()
                    .getMutableMap()
                    .put(labels__.getKey(), labels__.getValue());
                bitField0_ |= 0x00000100;
                break;
              } // case 74
            case 80:
              {
                enableMessageOrdering_ = input.readBool();
                bitField0_ |= 0x00000200;
                break;
              } // case 80
            case 90:
              {
                input.readMessage(
                    internalGetExpirationPolicyFieldBuilder().getBuilder(), extensionRegistry);
                bitField0_ |= 0x00000400;
                break;
              } // case 90
            case 98:
              {
                filter_ = input.readStringRequireUtf8();
                bitField0_ |= 0x00000800;
                break;
              } // case 98
            case 106:
              {
                input.readMessage(
                    internalGetDeadLetterPolicyFieldBuilder().getBuilder(), extensionRegistry);
                bitField0_ |= 0x00001000;
                break;
              } // case 106
            case 114:
              {
                input.readMessage(
                    internalGetRetryPolicyFieldBuilder().getBuilder(), extensionRegistry);
                bitField0_ |= 0x00002000;
                break;
              } // case 114
            case 120:
              {
                detached_ = input.readBool();
                bitField0_ |= 0x00004000;
                break;
              } // case 120
            case 128:
              {
                enableExactlyOnceDelivery_ = input.readBool();
                bitField0_ |= 0x00008000;
                break;
              } // case 128
            case 138:
              {
                input.readMessage(
                    internalGetTopicMessageRetentionDurationFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00010000;
                break;
              } // case 138
            case 146:
              {
                input.readMessage(
                    internalGetBigqueryConfigFieldBuilder().getBuilder(), extensionRegistry);
                bitField0_ |= 0x00000008;
                break;
              } // case 146
            case 152:
              {
                state_ = input.readEnum();
                bitField0_ |= 0x00020000;
                break;
              } // case 152
            case 178:
              {
                input.readMessage(
                    internalGetCloudStorageConfigFieldBuilder().getBuilder(), extensionRegistry);
                bitField0_ |= 0x00000010;
                break;
              } // case 178
            case 186:
              {
                input.readMessage(
                    internalGetAnalyticsHubSubscriptionInfoFieldBuilder().getBuilder(),
                    extensionRegistry);
                bitField0_ |= 0x00040000;
                break;
              } // case 186
            case 202:
              {
                com.google.pubsub.v1.MessageTransform m =
                    input.readMessage(
                        com.google.pubsub.v1.MessageTransform.parser(), extensionRegistry);
                if (messageTransformsBuilder_ == null) {
                  ensureMessageTransformsIsMutable();
                  messageTransforms_.add(m);
                } else {
                  messageTransformsBuilder_.addMessage(m);
                }
                break;
              } // case 202
            case 210:
              {
                com.google.protobuf.MapEntry<java.lang.String, java.lang.String> tags__ =
                    input.readMessage(
                        TagsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
                internalGetMutableTags().getMutableMap().put(tags__.getKey(), tags__.getValue());
                bitField0_ |= 0x00100000;
                break;
              } // case 210
            default:
              {
                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                  done = true; // was an endgroup tag
                }
                break;
              } // default:
          } // switch (tag)
        } // while (!done)
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.unwrapIOException();
      } finally {
        onChanged();
      } // finally
      return this;
    }

    private int bitField0_;

    private java.lang.Object name_ = "";

    /**
     *
     *
     * <pre>
     * Required. Identifier. The name of the subscription. It must have the format
     * `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
     * start with a letter, and contain only letters (`[A-Za-z]`), numbers
     * (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
     * plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
     * in length, and it must not start with `"goog"`.
     * </pre>
     *
     * <code>
     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IDENTIFIER];
     * </code>
     *
     * @return The name.
     */
    public java.lang.String getName() {
      java.lang.Object ref = name_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        name_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Required. Identifier. The name of the subscription. It must have the format
     * `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
     * start with a letter, and contain only letters (`[A-Za-z]`), numbers
     * (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
     * plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
     * in length, and it must not start with `"goog"`.
     * </pre>
     *
     * <code>
     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IDENTIFIER];
     * </code>
     *
     * @return The bytes for name.
     */
    public com.google.protobuf.ByteString getNameBytes() {
      java.lang.Object ref = name_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        name_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Required. Identifier. The name of the subscription. It must have the format
     * `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
     * start with a letter, and contain only letters (`[A-Za-z]`), numbers
     * (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
     * plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
     * in length, and it must not start with `"goog"`.
     * </pre>
     *
     * <code>
     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IDENTIFIER];
     * </code>
     *
     * @param value The name to set.
     * @return This builder for chaining.
     */
    public Builder setName(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      name_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Required. Identifier. The name of the subscription. It must have the format
     * `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
     * start with a letter, and contain only letters (`[A-Za-z]`), numbers
     * (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
     * plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
     * in length, and it must not start with `"goog"`.
     * </pre>
     *
     * <code>
     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IDENTIFIER];
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearName() {
      name_ = getDefaultInstance().getName();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Required. Identifier. The name of the subscription. It must have the format
     * `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
     * start with a letter, and contain only letters (`[A-Za-z]`), numbers
     * (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
     * plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
     * in length, and it must not start with `"goog"`.
     * </pre>
     *
     * <code>
     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IDENTIFIER];
     * </code>
     *
     * @param value The bytes for name to set.
     * @return This builder for chaining.
     */
    public Builder setNameBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      name_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    private java.lang.Object topic_ = "";

    /**
     *
     *
     * <pre>
     * Required. The name of the topic from which this subscription is receiving
     * messages. Format is `projects/{project}/topics/{topic}`. The value of this
     * field will be `_deleted-topic_` if the topic has been deleted.
     * </pre>
     *
     * <code>
     * string topic = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The topic.
     */
    public java.lang.String getTopic() {
      java.lang.Object ref = topic_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        topic_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Required. The name of the topic from which this subscription is receiving
     * messages. Format is `projects/{project}/topics/{topic}`. The value of this
     * field will be `_deleted-topic_` if the topic has been deleted.
     * </pre>
     *
     * <code>
     * string topic = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The bytes for topic.
     */
    public com.google.protobuf.ByteString getTopicBytes() {
      java.lang.Object ref = topic_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        topic_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Required. The name of the topic from which this subscription is receiving
     * messages. Format is `projects/{project}/topics/{topic}`. The value of this
     * field will be `_deleted-topic_` if the topic has been deleted.
     * </pre>
     *
     * <code>
     * string topic = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @param value The topic to set.
     * @return This builder for chaining.
     */
    public Builder setTopic(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      topic_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Required. The name of the topic from which this subscription is receiving
     * messages. Format is `projects/{project}/topics/{topic}`. The value of this
     * field will be `_deleted-topic_` if the topic has been deleted.
     * </pre>
     *
     * <code>
     * string topic = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearTopic() {
      topic_ = getDefaultInstance().getTopic();
      bitField0_ = (bitField0_ & ~0x00000002);
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Required. The name of the topic from which this subscription is receiving
     * messages. Format is `projects/{project}/topics/{topic}`. The value of this
     * field will be `_deleted-topic_` if the topic has been deleted.
     * </pre>
     *
     * <code>
     * string topic = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @param value The bytes for topic to set.
     * @return This builder for chaining.
     */
    public Builder setTopicBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      topic_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }

    private com.google.pubsub.v1.PushConfig pushConfig_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.PushConfig,
            com.google.pubsub.v1.PushConfig.Builder,
            com.google.pubsub.v1.PushConfigOrBuilder>
        pushConfigBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the pushConfig field is set.
     */
    public boolean hasPushConfig() {
      return ((bitField0_ & 0x00000004) != 0);
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The pushConfig.
     */
    public com.google.pubsub.v1.PushConfig getPushConfig() {
      if (pushConfigBuilder_ == null) {
        return pushConfig_ == null
            ? com.google.pubsub.v1.PushConfig.getDefaultInstance()
            : pushConfig_;
      } else {
        return pushConfigBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setPushConfig(com.google.pubsub.v1.PushConfig value) {
      if (pushConfigBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        pushConfig_ = value;
      } else {
        pushConfigBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setPushConfig(com.google.pubsub.v1.PushConfig.Builder builderForValue) {
      if (pushConfigBuilder_ == null) {
        pushConfig_ = builderForValue.build();
      } else {
        pushConfigBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergePushConfig(com.google.pubsub.v1.PushConfig value) {
      if (pushConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && pushConfig_ != null
            && pushConfig_ != com.google.pubsub.v1.PushConfig.getDefaultInstance()) {
          getPushConfigBuilder().mergeFrom(value);
        } else {
          pushConfig_ = value;
        }
      } else {
        pushConfigBuilder_.mergeFrom(value);
      }
      if (pushConfig_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearPushConfig() {
      bitField0_ = (bitField0_ & ~0x00000004);
      pushConfig_ = null;
      if (pushConfigBuilder_ != null) {
        pushConfigBuilder_.dispose();
        pushConfigBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.PushConfig.Builder getPushConfigBuilder() {
      bitField0_ |= 0x00000004;
      onChanged();
      return internalGetPushConfigFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.PushConfigOrBuilder getPushConfigOrBuilder() {
      if (pushConfigBuilder_ != null) {
        return pushConfigBuilder_.getMessageOrBuilder();
      } else {
        return pushConfig_ == null
            ? com.google.pubsub.v1.PushConfig.getDefaultInstance()
            : pushConfig_;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. If push delivery is used with this subscription, this field is
     * used to configure it.
     * </pre>
     *
     * <code>.google.pubsub.v1.PushConfig push_config = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.PushConfig,
            com.google.pubsub.v1.PushConfig.Builder,
            com.google.pubsub.v1.PushConfigOrBuilder>
        internalGetPushConfigFieldBuilder() {
      if (pushConfigBuilder_ == null) {
        pushConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.pubsub.v1.PushConfig,
                com.google.pubsub.v1.PushConfig.Builder,
                com.google.pubsub.v1.PushConfigOrBuilder>(
                getPushConfig(), getParentForChildren(), isClean());
        pushConfig_ = null;
      }
      return pushConfigBuilder_;
    }

    private com.google.pubsub.v1.BigQueryConfig bigqueryConfig_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.BigQueryConfig,
            com.google.pubsub.v1.BigQueryConfig.Builder,
            com.google.pubsub.v1.BigQueryConfigOrBuilder>
        bigqueryConfigBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the bigqueryConfig field is set.
     */
    public boolean hasBigqueryConfig() {
      return ((bitField0_ & 0x00000008) != 0);
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The bigqueryConfig.
     */
    public com.google.pubsub.v1.BigQueryConfig getBigqueryConfig() {
      if (bigqueryConfigBuilder_ == null) {
        return bigqueryConfig_ == null
            ? com.google.pubsub.v1.BigQueryConfig.getDefaultInstance()
            : bigqueryConfig_;
      } else {
        return bigqueryConfigBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setBigqueryConfig(com.google.pubsub.v1.BigQueryConfig value) {
      if (bigqueryConfigBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        bigqueryConfig_ = value;
      } else {
        bigqueryConfigBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setBigqueryConfig(com.google.pubsub.v1.BigQueryConfig.Builder builderForValue) {
      if (bigqueryConfigBuilder_ == null) {
        bigqueryConfig_ = builderForValue.build();
      } else {
        bigqueryConfigBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeBigqueryConfig(com.google.pubsub.v1.BigQueryConfig value) {
      if (bigqueryConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000008) != 0)
            && bigqueryConfig_ != null
            && bigqueryConfig_ != com.google.pubsub.v1.BigQueryConfig.getDefaultInstance()) {
          getBigqueryConfigBuilder().mergeFrom(value);
        } else {
          bigqueryConfig_ = value;
        }
      } else {
        bigqueryConfigBuilder_.mergeFrom(value);
      }
      if (bigqueryConfig_ != null) {
        bitField0_ |= 0x00000008;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearBigqueryConfig() {
      bitField0_ = (bitField0_ & ~0x00000008);
      bigqueryConfig_ = null;
      if (bigqueryConfigBuilder_ != null) {
        bigqueryConfigBuilder_.dispose();
        bigqueryConfigBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.BigQueryConfig.Builder getBigqueryConfigBuilder() {
      bitField0_ |= 0x00000008;
      onChanged();
      return internalGetBigqueryConfigFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.BigQueryConfigOrBuilder getBigqueryConfigOrBuilder() {
      if (bigqueryConfigBuilder_ != null) {
        return bigqueryConfigBuilder_.getMessageOrBuilder();
      } else {
        return bigqueryConfig_ == null
            ? com.google.pubsub.v1.BigQueryConfig.getDefaultInstance()
            : bigqueryConfig_;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to BigQuery is used with this subscription, this
     * field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.BigQueryConfig bigquery_config = 18 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.BigQueryConfig,
            com.google.pubsub.v1.BigQueryConfig.Builder,
            com.google.pubsub.v1.BigQueryConfigOrBuilder>
        internalGetBigqueryConfigFieldBuilder() {
      if (bigqueryConfigBuilder_ == null) {
        bigqueryConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.pubsub.v1.BigQueryConfig,
                com.google.pubsub.v1.BigQueryConfig.Builder,
                com.google.pubsub.v1.BigQueryConfigOrBuilder>(
                getBigqueryConfig(), getParentForChildren(), isClean());
        bigqueryConfig_ = null;
      }
      return bigqueryConfigBuilder_;
    }

    private com.google.pubsub.v1.CloudStorageConfig cloudStorageConfig_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.CloudStorageConfig,
            com.google.pubsub.v1.CloudStorageConfig.Builder,
            com.google.pubsub.v1.CloudStorageConfigOrBuilder>
        cloudStorageConfigBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the cloudStorageConfig field is set.
     */
    public boolean hasCloudStorageConfig() {
      return ((bitField0_ & 0x00000010) != 0);
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The cloudStorageConfig.
     */
    public com.google.pubsub.v1.CloudStorageConfig getCloudStorageConfig() {
      if (cloudStorageConfigBuilder_ == null) {
        return cloudStorageConfig_ == null
            ? com.google.pubsub.v1.CloudStorageConfig.getDefaultInstance()
            : cloudStorageConfig_;
      } else {
        return cloudStorageConfigBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setCloudStorageConfig(com.google.pubsub.v1.CloudStorageConfig value) {
      if (cloudStorageConfigBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        cloudStorageConfig_ = value;
      } else {
        cloudStorageConfigBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setCloudStorageConfig(
        com.google.pubsub.v1.CloudStorageConfig.Builder builderForValue) {
      if (cloudStorageConfigBuilder_ == null) {
        cloudStorageConfig_ = builderForValue.build();
      } else {
        cloudStorageConfigBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeCloudStorageConfig(com.google.pubsub.v1.CloudStorageConfig value) {
      if (cloudStorageConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000010) != 0)
            && cloudStorageConfig_ != null
            && cloudStorageConfig_
                != com.google.pubsub.v1.CloudStorageConfig.getDefaultInstance()) {
          getCloudStorageConfigBuilder().mergeFrom(value);
        } else {
          cloudStorageConfig_ = value;
        }
      } else {
        cloudStorageConfigBuilder_.mergeFrom(value);
      }
      if (cloudStorageConfig_ != null) {
        bitField0_ |= 0x00000010;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearCloudStorageConfig() {
      bitField0_ = (bitField0_ & ~0x00000010);
      cloudStorageConfig_ = null;
      if (cloudStorageConfigBuilder_ != null) {
        cloudStorageConfigBuilder_.dispose();
        cloudStorageConfigBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.CloudStorageConfig.Builder getCloudStorageConfigBuilder() {
      bitField0_ |= 0x00000010;
      onChanged();
      return internalGetCloudStorageConfigFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.CloudStorageConfigOrBuilder getCloudStorageConfigOrBuilder() {
      if (cloudStorageConfigBuilder_ != null) {
        return cloudStorageConfigBuilder_.getMessageOrBuilder();
      } else {
        return cloudStorageConfig_ == null
            ? com.google.pubsub.v1.CloudStorageConfig.getDefaultInstance()
            : cloudStorageConfig_;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. If delivery to Google Cloud Storage is used with this
     * subscription, this field is used to configure it.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.CloudStorageConfig cloud_storage_config = 22 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.CloudStorageConfig,
            com.google.pubsub.v1.CloudStorageConfig.Builder,
            com.google.pubsub.v1.CloudStorageConfigOrBuilder>
        internalGetCloudStorageConfigFieldBuilder() {
      if (cloudStorageConfigBuilder_ == null) {
        cloudStorageConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.pubsub.v1.CloudStorageConfig,
                com.google.pubsub.v1.CloudStorageConfig.Builder,
                com.google.pubsub.v1.CloudStorageConfigOrBuilder>(
                getCloudStorageConfig(), getParentForChildren(), isClean());
        cloudStorageConfig_ = null;
      }
      return cloudStorageConfigBuilder_;
    }

    private int ackDeadlineSeconds_;

    /**
     *
     *
     * <pre>
     * Optional. The approximate amount of time (on a best-effort basis) Pub/Sub
     * waits for the subscriber to acknowledge receipt before resending the
     * message. In the interval after the message is delivered and before it is
     * acknowledged, it is considered to be _outstanding_. During that time
     * period, the message will not be redelivered (on a best-effort basis).
     *
     * For pull subscriptions, this value is used as the initial value for the ack
     * deadline. To override this value for a given message, call
     * `ModifyAckDeadline` with the corresponding `ack_id` if using
     * non-streaming pull or send the `ack_id` in a
     * `StreamingModifyAckDeadlineRequest` if using streaming pull.
     * The minimum custom deadline you can specify is 10 seconds.
     * The maximum custom deadline you can specify is 600 seconds (10 minutes).
     * If this parameter is 0, a default value of 10 seconds is used.
     *
     * For push delivery, this value is also used to set the request timeout for
     * the call to the push endpoint.
     *
     * If the subscriber never acknowledges the message, the Pub/Sub
     * system will eventually redeliver the message.
     * </pre>
     *
     * <code>int32 ack_deadline_seconds = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The ackDeadlineSeconds.
     */
    @java.lang.Override
    public int getAckDeadlineSeconds() {
      return ackDeadlineSeconds_;
    }

    /**
     *
     *
     * <pre>
     * Optional. The approximate amount of time (on a best-effort basis) Pub/Sub
     * waits for the subscriber to acknowledge receipt before resending the
     * message. In the interval after the message is delivered and before it is
     * acknowledged, it is considered to be _outstanding_. During that time
     * period, the message will not be redelivered (on a best-effort basis).
     *
     * For pull subscriptions, this value is used as the initial value for the ack
     * deadline. To override this value for a given message, call
     * `ModifyAckDeadline` with the corresponding `ack_id` if using
     * non-streaming pull or send the `ack_id` in a
     * `StreamingModifyAckDeadlineRequest` if using streaming pull.
     * The minimum custom deadline you can specify is 10 seconds.
     * The maximum custom deadline you can specify is 600 seconds (10 minutes).
     * If this parameter is 0, a default value of 10 seconds is used.
     *
     * For push delivery, this value is also used to set the request timeout for
     * the call to the push endpoint.
     *
     * If the subscriber never acknowledges the message, the Pub/Sub
     * system will eventually redeliver the message.
     * </pre>
     *
     * <code>int32 ack_deadline_seconds = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The ackDeadlineSeconds to set.
     * @return This builder for chaining.
     */
    public Builder setAckDeadlineSeconds(int value) {

      ackDeadlineSeconds_ = value;
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. The approximate amount of time (on a best-effort basis) Pub/Sub
     * waits for the subscriber to acknowledge receipt before resending the
     * message. In the interval after the message is delivered and before it is
     * acknowledged, it is considered to be _outstanding_. During that time
     * period, the message will not be redelivered (on a best-effort basis).
     *
     * For pull subscriptions, this value is used as the initial value for the ack
     * deadline. To override this value for a given message, call
     * `ModifyAckDeadline` with the corresponding `ack_id` if using
     * non-streaming pull or send the `ack_id` in a
     * `StreamingModifyAckDeadlineRequest` if using streaming pull.
     * The minimum custom deadline you can specify is 10 seconds.
     * The maximum custom deadline you can specify is 600 seconds (10 minutes).
     * If this parameter is 0, a default value of 10 seconds is used.
     *
     * For push delivery, this value is also used to set the request timeout for
     * the call to the push endpoint.
     *
     * If the subscriber never acknowledges the message, the Pub/Sub
     * system will eventually redeliver the message.
     * </pre>
     *
     * <code>int32 ack_deadline_seconds = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearAckDeadlineSeconds() {
      bitField0_ = (bitField0_ & ~0x00000020);
      ackDeadlineSeconds_ = 0;
      onChanged();
      return this;
    }

    private boolean retainAckedMessages_;

    /**
     *
     *
     * <pre>
     * Optional. Indicates whether to retain acknowledged messages. If true, then
     * messages are not expunged from the subscription's backlog, even if they are
     * acknowledged, until they fall out of the `message_retention_duration`
     * window. This must be true if you would like to [`Seek` to a timestamp]
     * (https://cloud.google.com/pubsub/docs/replay-overview#seek_to_a_time) in
     * the past to replay previously-acknowledged messages.
     * </pre>
     *
     * <code>bool retain_acked_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The retainAckedMessages.
     */
    @java.lang.Override
    public boolean getRetainAckedMessages() {
      return retainAckedMessages_;
    }

    /**
     *
     *
     * <pre>
     * Optional. Indicates whether to retain acknowledged messages. If true, then
     * messages are not expunged from the subscription's backlog, even if they are
     * acknowledged, until they fall out of the `message_retention_duration`
     * window. This must be true if you would like to [`Seek` to a timestamp]
     * (https://cloud.google.com/pubsub/docs/replay-overview#seek_to_a_time) in
     * the past to replay previously-acknowledged messages.
     * </pre>
     *
     * <code>bool retain_acked_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The retainAckedMessages to set.
     * @return This builder for chaining.
     */
    public Builder setRetainAckedMessages(boolean value) {

      retainAckedMessages_ = value;
      bitField0_ |= 0x00000040;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Indicates whether to retain acknowledged messages. If true, then
     * messages are not expunged from the subscription's backlog, even if they are
     * acknowledged, until they fall out of the `message_retention_duration`
     * window. This must be true if you would like to [`Seek` to a timestamp]
     * (https://cloud.google.com/pubsub/docs/replay-overview#seek_to_a_time) in
     * the past to replay previously-acknowledged messages.
     * </pre>
     *
     * <code>bool retain_acked_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearRetainAckedMessages() {
      bitField0_ = (bitField0_ & ~0x00000040);
      retainAckedMessages_ = false;
      onChanged();
      return this;
    }

    private com.google.protobuf.Duration messageRetentionDuration_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.protobuf.Duration,
            com.google.protobuf.Duration.Builder,
            com.google.protobuf.DurationOrBuilder>
        messageRetentionDurationBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the messageRetentionDuration field is set.
     */
    public boolean hasMessageRetentionDuration() {
      return ((bitField0_ & 0x00000080) != 0);
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The messageRetentionDuration.
     */
    public com.google.protobuf.Duration getMessageRetentionDuration() {
      if (messageRetentionDurationBuilder_ == null) {
        return messageRetentionDuration_ == null
            ? com.google.protobuf.Duration.getDefaultInstance()
            : messageRetentionDuration_;
      } else {
        return messageRetentionDurationBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setMessageRetentionDuration(com.google.protobuf.Duration value) {
      if (messageRetentionDurationBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        messageRetentionDuration_ = value;
      } else {
        messageRetentionDurationBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000080;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setMessageRetentionDuration(
        com.google.protobuf.Duration.Builder builderForValue) {
      if (messageRetentionDurationBuilder_ == null) {
        messageRetentionDuration_ = builderForValue.build();
      } else {
        messageRetentionDurationBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000080;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeMessageRetentionDuration(com.google.protobuf.Duration value) {
      if (messageRetentionDurationBuilder_ == null) {
        if (((bitField0_ & 0x00000080) != 0)
            && messageRetentionDuration_ != null
            && messageRetentionDuration_ != com.google.protobuf.Duration.getDefaultInstance()) {
          getMessageRetentionDurationBuilder().mergeFrom(value);
        } else {
          messageRetentionDuration_ = value;
        }
      } else {
        messageRetentionDurationBuilder_.mergeFrom(value);
      }
      if (messageRetentionDuration_ != null) {
        bitField0_ |= 0x00000080;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearMessageRetentionDuration() {
      bitField0_ = (bitField0_ & ~0x00000080);
      messageRetentionDuration_ = null;
      if (messageRetentionDurationBuilder_ != null) {
        messageRetentionDurationBuilder_.dispose();
        messageRetentionDurationBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.protobuf.Duration.Builder getMessageRetentionDurationBuilder() {
      bitField0_ |= 0x00000080;
      onChanged();
      return internalGetMessageRetentionDurationFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.protobuf.DurationOrBuilder getMessageRetentionDurationOrBuilder() {
      if (messageRetentionDurationBuilder_ != null) {
        return messageRetentionDurationBuilder_.getMessageOrBuilder();
      } else {
        return messageRetentionDuration_ == null
            ? com.google.protobuf.Duration.getDefaultInstance()
            : messageRetentionDuration_;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. How long to retain unacknowledged messages in the subscription's
     * backlog, from the moment a message is published. If `retain_acked_messages`
     * is true, then this also configures the retention of acknowledged messages,
     * and thus configures how far back in time a `Seek` can be done. Defaults to
     * 7 days. Cannot be more than 31 days or less than 10 minutes.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration message_retention_duration = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.protobuf.Duration,
            com.google.protobuf.Duration.Builder,
            com.google.protobuf.DurationOrBuilder>
        internalGetMessageRetentionDurationFieldBuilder() {
      if (messageRetentionDurationBuilder_ == null) {
        messageRetentionDurationBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.protobuf.Duration,
                com.google.protobuf.Duration.Builder,
                com.google.protobuf.DurationOrBuilder>(
                getMessageRetentionDuration(), getParentForChildren(), isClean());
        messageRetentionDuration_ = null;
      }
      return messageRetentionDurationBuilder_;
    }

    private com.google.protobuf.MapField<java.lang.String, java.lang.String> labels_;

    private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetLabels() {
      if (labels_ == null) {
        return com.google.protobuf.MapField.emptyMapField(LabelsDefaultEntryHolder.defaultEntry);
      }
      return labels_;
    }

    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
        internalGetMutableLabels() {
      if (labels_ == null) {
        labels_ = com.google.protobuf.MapField.newMapField(LabelsDefaultEntryHolder.defaultEntry);
      }
      if (!labels_.isMutable()) {
        labels_ = labels_.copy();
      }
      bitField0_ |= 0x00000100;
      onChanged();
      return labels_;
    }

    public int getLabelsCount() {
      return internalGetLabels().getMap().size();
    }

    /**
     *
     *
     * <pre>
     * Optional. See [Creating and managing
     * labels](https://cloud.google.com/pubsub/docs/labels).
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
     */
    @java.lang.Override
    public boolean containsLabels(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      return internalGetLabels().getMap().containsKey(key);
    }

    /** Use {@link #getLabelsMap()} instead. */
    @java.lang.Override
    @java.lang.Deprecated
    public java.util.Map<java.lang.String, java.lang.String> getLabels() {
      return getLabelsMap();
    }

    /**
     *
     *
     * <pre>
     * Optional. See [Creating and managing
     * labels](https://cloud.google.com/pubsub/docs/labels).
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
     */
    @java.lang.Override
    public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
      return internalGetLabels().getMap();
    }

    /**
     *
     *
     * <pre>
     * Optional. See [Creating and managing
     * labels](https://cloud.google.com/pubsub/docs/labels).
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
     */
    @java.lang.Override
    public /* nullable */ java.lang.String getLabelsOrDefault(
        java.lang.String key,
        /* nullable */
        java.lang.String defaultValue) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      java.util.Map<java.lang.String, java.lang.String> map = internalGetLabels().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }

    /**
     *
     *
     * <pre>
     * Optional. See [Creating and managing
     * labels](https://cloud.google.com/pubsub/docs/labels).
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
     */
    @java.lang.Override
    public java.lang.String getLabelsOrThrow(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      java.util.Map<java.lang.String, java.lang.String> map = internalGetLabels().getMap();
      if (!map.containsKey(key)) {
        throw new java.lang.IllegalArgumentException();
      }
      return map.get(key);
    }

    public Builder clearLabels() {
      bitField0_ = (bitField0_ & ~0x00000100);
      internalGetMutableLabels().getMutableMap().clear();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. See [Creating and managing
     * labels](https://cloud.google.com/pubsub/docs/labels).
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
     */
    public Builder removeLabels(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      internalGetMutableLabels().getMutableMap().remove(key);
      return this;
    }

    /** Use alternate mutation accessors instead. */
    @java.lang.Deprecated
    public java.util.Map<java.lang.String, java.lang.String> getMutableLabels() {
      bitField0_ |= 0x00000100;
      return internalGetMutableLabels().getMutableMap();
    }

    /**
     *
     *
     * <pre>
     * Optional. See [Creating and managing
     * labels](https://cloud.google.com/pubsub/docs/labels).
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
     */
    public Builder putLabels(java.lang.String key, java.lang.String value) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      if (value == null) {
        throw new NullPointerException("map value");
      }
      internalGetMutableLabels().getMutableMap().put(key, value);
      bitField0_ |= 0x00000100;
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. See [Creating and managing
     * labels](https://cloud.google.com/pubsub/docs/labels).
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 9 [(.google.api.field_behavior) = OPTIONAL];</code>
     */
    public Builder putAllLabels(java.util.Map<java.lang.String, java.lang.String> values) {
      internalGetMutableLabels().getMutableMap().putAll(values);
      bitField0_ |= 0x00000100;
      return this;
    }

    private boolean enableMessageOrdering_;

    /**
     *
     *
     * <pre>
     * Optional. If true, messages published with the same `ordering_key` in
     * `PubsubMessage` will be delivered to the subscribers in the order in which
     * they are received by the Pub/Sub system. Otherwise, they may be delivered
     * in any order.
     * </pre>
     *
     * <code>bool enable_message_ordering = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The enableMessageOrdering.
     */
    @java.lang.Override
    public boolean getEnableMessageOrdering() {
      return enableMessageOrdering_;
    }

    /**
     *
     *
     * <pre>
     * Optional. If true, messages published with the same `ordering_key` in
     * `PubsubMessage` will be delivered to the subscribers in the order in which
     * they are received by the Pub/Sub system. Otherwise, they may be delivered
     * in any order.
     * </pre>
     *
     * <code>bool enable_message_ordering = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The enableMessageOrdering to set.
     * @return This builder for chaining.
     */
    public Builder setEnableMessageOrdering(boolean value) {

      enableMessageOrdering_ = value;
      bitField0_ |= 0x00000200;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If true, messages published with the same `ordering_key` in
     * `PubsubMessage` will be delivered to the subscribers in the order in which
     * they are received by the Pub/Sub system. Otherwise, they may be delivered
     * in any order.
     * </pre>
     *
     * <code>bool enable_message_ordering = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearEnableMessageOrdering() {
      bitField0_ = (bitField0_ & ~0x00000200);
      enableMessageOrdering_ = false;
      onChanged();
      return this;
    }

    private com.google.pubsub.v1.ExpirationPolicy expirationPolicy_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.ExpirationPolicy,
            com.google.pubsub.v1.ExpirationPolicy.Builder,
            com.google.pubsub.v1.ExpirationPolicyOrBuilder>
        expirationPolicyBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the expirationPolicy field is set.
     */
    public boolean hasExpirationPolicy() {
      return ((bitField0_ & 0x00000400) != 0);
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The expirationPolicy.
     */
    public com.google.pubsub.v1.ExpirationPolicy getExpirationPolicy() {
      if (expirationPolicyBuilder_ == null) {
        return expirationPolicy_ == null
            ? com.google.pubsub.v1.ExpirationPolicy.getDefaultInstance()
            : expirationPolicy_;
      } else {
        return expirationPolicyBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setExpirationPolicy(com.google.pubsub.v1.ExpirationPolicy value) {
      if (expirationPolicyBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        expirationPolicy_ = value;
      } else {
        expirationPolicyBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000400;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setExpirationPolicy(
        com.google.pubsub.v1.ExpirationPolicy.Builder builderForValue) {
      if (expirationPolicyBuilder_ == null) {
        expirationPolicy_ = builderForValue.build();
      } else {
        expirationPolicyBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000400;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeExpirationPolicy(com.google.pubsub.v1.ExpirationPolicy value) {
      if (expirationPolicyBuilder_ == null) {
        if (((bitField0_ & 0x00000400) != 0)
            && expirationPolicy_ != null
            && expirationPolicy_ != com.google.pubsub.v1.ExpirationPolicy.getDefaultInstance()) {
          getExpirationPolicyBuilder().mergeFrom(value);
        } else {
          expirationPolicy_ = value;
        }
      } else {
        expirationPolicyBuilder_.mergeFrom(value);
      }
      if (expirationPolicy_ != null) {
        bitField0_ |= 0x00000400;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearExpirationPolicy() {
      bitField0_ = (bitField0_ & ~0x00000400);
      expirationPolicy_ = null;
      if (expirationPolicyBuilder_ != null) {
        expirationPolicyBuilder_.dispose();
        expirationPolicyBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.ExpirationPolicy.Builder getExpirationPolicyBuilder() {
      bitField0_ |= 0x00000400;
      onChanged();
      return internalGetExpirationPolicyFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.ExpirationPolicyOrBuilder getExpirationPolicyOrBuilder() {
      if (expirationPolicyBuilder_ != null) {
        return expirationPolicyBuilder_.getMessageOrBuilder();
      } else {
        return expirationPolicy_ == null
            ? com.google.pubsub.v1.ExpirationPolicy.getDefaultInstance()
            : expirationPolicy_;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for this subscription's
     * expiration. A subscription is considered active as long as any connected
     * subscriber is successfully consuming messages from the subscription or is
     * issuing operations on the subscription. If `expiration_policy` is not set,
     * a *default policy* with `ttl` of 31 days will be used. The minimum allowed
     * value for `expiration_policy.ttl` is 1 day. If `expiration_policy` is set,
     * but `expiration_policy.ttl` is not set, the subscription never expires.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.ExpirationPolicy expiration_policy = 11 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.ExpirationPolicy,
            com.google.pubsub.v1.ExpirationPolicy.Builder,
            com.google.pubsub.v1.ExpirationPolicyOrBuilder>
        internalGetExpirationPolicyFieldBuilder() {
      if (expirationPolicyBuilder_ == null) {
        expirationPolicyBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.pubsub.v1.ExpirationPolicy,
                com.google.pubsub.v1.ExpirationPolicy.Builder,
                com.google.pubsub.v1.ExpirationPolicyOrBuilder>(
                getExpirationPolicy(), getParentForChildren(), isClean());
        expirationPolicy_ = null;
      }
      return expirationPolicyBuilder_;
    }

    private java.lang.Object filter_ = "";

    /**
     *
     *
     * <pre>
     * Optional. An expression written in the Pub/Sub [filter
     * language](https://cloud.google.com/pubsub/docs/filtering). If non-empty,
     * then only `PubsubMessage`s whose `attributes` field matches the filter are
     * delivered on this subscription. If empty, then no messages are filtered
     * out.
     * </pre>
     *
     * <code>string filter = 12 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The filter.
     */
    public java.lang.String getFilter() {
      java.lang.Object ref = filter_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        filter_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. An expression written in the Pub/Sub [filter
     * language](https://cloud.google.com/pubsub/docs/filtering). If non-empty,
     * then only `PubsubMessage`s whose `attributes` field matches the filter are
     * delivered on this subscription. If empty, then no messages are filtered
     * out.
     * </pre>
     *
     * <code>string filter = 12 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The bytes for filter.
     */
    public com.google.protobuf.ByteString getFilterBytes() {
      java.lang.Object ref = filter_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        filter_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. An expression written in the Pub/Sub [filter
     * language](https://cloud.google.com/pubsub/docs/filtering). If non-empty,
     * then only `PubsubMessage`s whose `attributes` field matches the filter are
     * delivered on this subscription. If empty, then no messages are filtered
     * out.
     * </pre>
     *
     * <code>string filter = 12 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The filter to set.
     * @return This builder for chaining.
     */
    public Builder setFilter(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      filter_ = value;
      bitField0_ |= 0x00000800;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. An expression written in the Pub/Sub [filter
     * language](https://cloud.google.com/pubsub/docs/filtering). If non-empty,
     * then only `PubsubMessage`s whose `attributes` field matches the filter are
     * delivered on this subscription. If empty, then no messages are filtered
     * out.
     * </pre>
     *
     * <code>string filter = 12 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearFilter() {
      filter_ = getDefaultInstance().getFilter();
      bitField0_ = (bitField0_ & ~0x00000800);
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. An expression written in the Pub/Sub [filter
     * language](https://cloud.google.com/pubsub/docs/filtering). If non-empty,
     * then only `PubsubMessage`s whose `attributes` field matches the filter are
     * delivered on this subscription. If empty, then no messages are filtered
     * out.
     * </pre>
     *
     * <code>string filter = 12 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The bytes for filter to set.
     * @return This builder for chaining.
     */
    public Builder setFilterBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      filter_ = value;
      bitField0_ |= 0x00000800;
      onChanged();
      return this;
    }

    private com.google.pubsub.v1.DeadLetterPolicy deadLetterPolicy_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.DeadLetterPolicy,
            com.google.pubsub.v1.DeadLetterPolicy.Builder,
            com.google.pubsub.v1.DeadLetterPolicyOrBuilder>
        deadLetterPolicyBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the deadLetterPolicy field is set.
     */
    public boolean hasDeadLetterPolicy() {
      return ((bitField0_ & 0x00001000) != 0);
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The deadLetterPolicy.
     */
    public com.google.pubsub.v1.DeadLetterPolicy getDeadLetterPolicy() {
      if (deadLetterPolicyBuilder_ == null) {
        return deadLetterPolicy_ == null
            ? com.google.pubsub.v1.DeadLetterPolicy.getDefaultInstance()
            : deadLetterPolicy_;
      } else {
        return deadLetterPolicyBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setDeadLetterPolicy(com.google.pubsub.v1.DeadLetterPolicy value) {
      if (deadLetterPolicyBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        deadLetterPolicy_ = value;
      } else {
        deadLetterPolicyBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00001000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setDeadLetterPolicy(
        com.google.pubsub.v1.DeadLetterPolicy.Builder builderForValue) {
      if (deadLetterPolicyBuilder_ == null) {
        deadLetterPolicy_ = builderForValue.build();
      } else {
        deadLetterPolicyBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00001000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeDeadLetterPolicy(com.google.pubsub.v1.DeadLetterPolicy value) {
      if (deadLetterPolicyBuilder_ == null) {
        if (((bitField0_ & 0x00001000) != 0)
            && deadLetterPolicy_ != null
            && deadLetterPolicy_ != com.google.pubsub.v1.DeadLetterPolicy.getDefaultInstance()) {
          getDeadLetterPolicyBuilder().mergeFrom(value);
        } else {
          deadLetterPolicy_ = value;
        }
      } else {
        deadLetterPolicyBuilder_.mergeFrom(value);
      }
      if (deadLetterPolicy_ != null) {
        bitField0_ |= 0x00001000;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearDeadLetterPolicy() {
      bitField0_ = (bitField0_ & ~0x00001000);
      deadLetterPolicy_ = null;
      if (deadLetterPolicyBuilder_ != null) {
        deadLetterPolicyBuilder_.dispose();
        deadLetterPolicyBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.DeadLetterPolicy.Builder getDeadLetterPolicyBuilder() {
      bitField0_ |= 0x00001000;
      onChanged();
      return internalGetDeadLetterPolicyFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.DeadLetterPolicyOrBuilder getDeadLetterPolicyOrBuilder() {
      if (deadLetterPolicyBuilder_ != null) {
        return deadLetterPolicyBuilder_.getMessageOrBuilder();
      } else {
        return deadLetterPolicy_ == null
            ? com.google.pubsub.v1.DeadLetterPolicy.getDefaultInstance()
            : deadLetterPolicy_;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies the conditions for dead lettering
     * messages in this subscription. If dead_letter_policy is not set, dead
     * lettering is disabled.
     *
     * The Pub/Sub service account associated with this subscriptions's
     * parent project (i.e.,
     * service-{project_number}&#64;gcp-sa-pubsub.iam.gserviceaccount.com) must have
     * permission to Acknowledge() messages on this subscription.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.DeadLetterPolicy dead_letter_policy = 13 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.DeadLetterPolicy,
            com.google.pubsub.v1.DeadLetterPolicy.Builder,
            com.google.pubsub.v1.DeadLetterPolicyOrBuilder>
        internalGetDeadLetterPolicyFieldBuilder() {
      if (deadLetterPolicyBuilder_ == null) {
        deadLetterPolicyBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.pubsub.v1.DeadLetterPolicy,
                com.google.pubsub.v1.DeadLetterPolicy.Builder,
                com.google.pubsub.v1.DeadLetterPolicyOrBuilder>(
                getDeadLetterPolicy(), getParentForChildren(), isClean());
        deadLetterPolicy_ = null;
      }
      return deadLetterPolicyBuilder_;
    }

    private com.google.pubsub.v1.RetryPolicy retryPolicy_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.RetryPolicy,
            com.google.pubsub.v1.RetryPolicy.Builder,
            com.google.pubsub.v1.RetryPolicyOrBuilder>
        retryPolicyBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the retryPolicy field is set.
     */
    public boolean hasRetryPolicy() {
      return ((bitField0_ & 0x00002000) != 0);
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The retryPolicy.
     */
    public com.google.pubsub.v1.RetryPolicy getRetryPolicy() {
      if (retryPolicyBuilder_ == null) {
        return retryPolicy_ == null
            ? com.google.pubsub.v1.RetryPolicy.getDefaultInstance()
            : retryPolicy_;
      } else {
        return retryPolicyBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setRetryPolicy(com.google.pubsub.v1.RetryPolicy value) {
      if (retryPolicyBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        retryPolicy_ = value;
      } else {
        retryPolicyBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00002000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setRetryPolicy(com.google.pubsub.v1.RetryPolicy.Builder builderForValue) {
      if (retryPolicyBuilder_ == null) {
        retryPolicy_ = builderForValue.build();
      } else {
        retryPolicyBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00002000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeRetryPolicy(com.google.pubsub.v1.RetryPolicy value) {
      if (retryPolicyBuilder_ == null) {
        if (((bitField0_ & 0x00002000) != 0)
            && retryPolicy_ != null
            && retryPolicy_ != com.google.pubsub.v1.RetryPolicy.getDefaultInstance()) {
          getRetryPolicyBuilder().mergeFrom(value);
        } else {
          retryPolicy_ = value;
        }
      } else {
        retryPolicyBuilder_.mergeFrom(value);
      }
      if (retryPolicy_ != null) {
        bitField0_ |= 0x00002000;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearRetryPolicy() {
      bitField0_ = (bitField0_ & ~0x00002000);
      retryPolicy_ = null;
      if (retryPolicyBuilder_ != null) {
        retryPolicyBuilder_.dispose();
        retryPolicyBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.RetryPolicy.Builder getRetryPolicyBuilder() {
      bitField0_ |= 0x00002000;
      onChanged();
      return internalGetRetryPolicyFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.RetryPolicyOrBuilder getRetryPolicyOrBuilder() {
      if (retryPolicyBuilder_ != null) {
        return retryPolicyBuilder_.getMessageOrBuilder();
      } else {
        return retryPolicy_ == null
            ? com.google.pubsub.v1.RetryPolicy.getDefaultInstance()
            : retryPolicy_;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A policy that specifies how Pub/Sub retries message delivery for
     * this subscription.
     *
     * If not set, the default retry policy is applied. This generally implies
     * that messages will be retried as soon as possible for healthy subscribers.
     * RetryPolicy will be triggered on NACKs or acknowledgment deadline exceeded
     * events for a given message.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.RetryPolicy retry_policy = 14 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.RetryPolicy,
            com.google.pubsub.v1.RetryPolicy.Builder,
            com.google.pubsub.v1.RetryPolicyOrBuilder>
        internalGetRetryPolicyFieldBuilder() {
      if (retryPolicyBuilder_ == null) {
        retryPolicyBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.pubsub.v1.RetryPolicy,
                com.google.pubsub.v1.RetryPolicy.Builder,
                com.google.pubsub.v1.RetryPolicyOrBuilder>(
                getRetryPolicy(), getParentForChildren(), isClean());
        retryPolicy_ = null;
      }
      return retryPolicyBuilder_;
    }

    private boolean detached_;

    /**
     *
     *
     * <pre>
     * Optional. Indicates whether the subscription is detached from its topic.
     * Detached subscriptions don't receive messages from their topic and don't
     * retain any backlog. `Pull` and `StreamingPull` requests will return
     * FAILED_PRECONDITION. If the subscription is a push subscription, pushes to
     * the endpoint will not be made.
     * </pre>
     *
     * <code>bool detached = 15 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The detached.
     */
    @java.lang.Override
    public boolean getDetached() {
      return detached_;
    }

    /**
     *
     *
     * <pre>
     * Optional. Indicates whether the subscription is detached from its topic.
     * Detached subscriptions don't receive messages from their topic and don't
     * retain any backlog. `Pull` and `StreamingPull` requests will return
     * FAILED_PRECONDITION. If the subscription is a push subscription, pushes to
     * the endpoint will not be made.
     * </pre>
     *
     * <code>bool detached = 15 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The detached to set.
     * @return This builder for chaining.
     */
    public Builder setDetached(boolean value) {

      detached_ = value;
      bitField0_ |= 0x00004000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Indicates whether the subscription is detached from its topic.
     * Detached subscriptions don't receive messages from their topic and don't
     * retain any backlog. `Pull` and `StreamingPull` requests will return
     * FAILED_PRECONDITION. If the subscription is a push subscription, pushes to
     * the endpoint will not be made.
     * </pre>
     *
     * <code>bool detached = 15 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearDetached() {
      bitField0_ = (bitField0_ & ~0x00004000);
      detached_ = false;
      onChanged();
      return this;
    }

    private boolean enableExactlyOnceDelivery_;

    /**
     *
     *
     * <pre>
     * Optional. If true, Pub/Sub provides the following guarantees for the
     * delivery of a message with a given value of `message_id` on this
     * subscription:
     *
     * * The message sent to a subscriber is guaranteed not to be resent
     * before the message's acknowledgment deadline expires.
     * * An acknowledged message will not be resent to a subscriber.
     *
     * Note that subscribers may still receive multiple copies of a message
     * when `enable_exactly_once_delivery` is true if the message was published
     * multiple times by a publisher client. These copies are  considered distinct
     * by Pub/Sub and have distinct `message_id` values.
     * </pre>
     *
     * <code>bool enable_exactly_once_delivery = 16 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The enableExactlyOnceDelivery.
     */
    @java.lang.Override
    public boolean getEnableExactlyOnceDelivery() {
      return enableExactlyOnceDelivery_;
    }

    /**
     *
     *
     * <pre>
     * Optional. If true, Pub/Sub provides the following guarantees for the
     * delivery of a message with a given value of `message_id` on this
     * subscription:
     *
     * * The message sent to a subscriber is guaranteed not to be resent
     * before the message's acknowledgment deadline expires.
     * * An acknowledged message will not be resent to a subscriber.
     *
     * Note that subscribers may still receive multiple copies of a message
     * when `enable_exactly_once_delivery` is true if the message was published
     * multiple times by a publisher client. These copies are  considered distinct
     * by Pub/Sub and have distinct `message_id` values.
     * </pre>
     *
     * <code>bool enable_exactly_once_delivery = 16 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param value The enableExactlyOnceDelivery to set.
     * @return This builder for chaining.
     */
    public Builder setEnableExactlyOnceDelivery(boolean value) {

      enableExactlyOnceDelivery_ = value;
      bitField0_ |= 0x00008000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. If true, Pub/Sub provides the following guarantees for the
     * delivery of a message with a given value of `message_id` on this
     * subscription:
     *
     * * The message sent to a subscriber is guaranteed not to be resent
     * before the message's acknowledgment deadline expires.
     * * An acknowledged message will not be resent to a subscriber.
     *
     * Note that subscribers may still receive multiple copies of a message
     * when `enable_exactly_once_delivery` is true if the message was published
     * multiple times by a publisher client. These copies are  considered distinct
     * by Pub/Sub and have distinct `message_id` values.
     * </pre>
     *
     * <code>bool enable_exactly_once_delivery = 16 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearEnableExactlyOnceDelivery() {
      bitField0_ = (bitField0_ & ~0x00008000);
      enableExactlyOnceDelivery_ = false;
      onChanged();
      return this;
    }

    private com.google.protobuf.Duration topicMessageRetentionDuration_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.protobuf.Duration,
            com.google.protobuf.Duration.Builder,
            com.google.protobuf.DurationOrBuilder>
        topicMessageRetentionDurationBuilder_;

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return Whether the topicMessageRetentionDuration field is set.
     */
    public boolean hasTopicMessageRetentionDuration() {
      return ((bitField0_ & 0x00010000) != 0);
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return The topicMessageRetentionDuration.
     */
    public com.google.protobuf.Duration getTopicMessageRetentionDuration() {
      if (topicMessageRetentionDurationBuilder_ == null) {
        return topicMessageRetentionDuration_ == null
            ? com.google.protobuf.Duration.getDefaultInstance()
            : topicMessageRetentionDuration_;
      } else {
        return topicMessageRetentionDurationBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder setTopicMessageRetentionDuration(com.google.protobuf.Duration value) {
      if (topicMessageRetentionDurationBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        topicMessageRetentionDuration_ = value;
      } else {
        topicMessageRetentionDurationBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00010000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder setTopicMessageRetentionDuration(
        com.google.protobuf.Duration.Builder builderForValue) {
      if (topicMessageRetentionDurationBuilder_ == null) {
        topicMessageRetentionDuration_ = builderForValue.build();
      } else {
        topicMessageRetentionDurationBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00010000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder mergeTopicMessageRetentionDuration(com.google.protobuf.Duration value) {
      if (topicMessageRetentionDurationBuilder_ == null) {
        if (((bitField0_ & 0x00010000) != 0)
            && topicMessageRetentionDuration_ != null
            && topicMessageRetentionDuration_
                != com.google.protobuf.Duration.getDefaultInstance()) {
          getTopicMessageRetentionDurationBuilder().mergeFrom(value);
        } else {
          topicMessageRetentionDuration_ = value;
        }
      } else {
        topicMessageRetentionDurationBuilder_.mergeFrom(value);
      }
      if (topicMessageRetentionDuration_ != null) {
        bitField0_ |= 0x00010000;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder clearTopicMessageRetentionDuration() {
      bitField0_ = (bitField0_ & ~0x00010000);
      topicMessageRetentionDuration_ = null;
      if (topicMessageRetentionDurationBuilder_ != null) {
        topicMessageRetentionDurationBuilder_.dispose();
        topicMessageRetentionDurationBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public com.google.protobuf.Duration.Builder getTopicMessageRetentionDurationBuilder() {
      bitField0_ |= 0x00010000;
      onChanged();
      return internalGetTopicMessageRetentionDurationFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public com.google.protobuf.DurationOrBuilder getTopicMessageRetentionDurationOrBuilder() {
      if (topicMessageRetentionDurationBuilder_ != null) {
        return topicMessageRetentionDurationBuilder_.getMessageOrBuilder();
      } else {
        return topicMessageRetentionDuration_ == null
            ? com.google.protobuf.Duration.getDefaultInstance()
            : topicMessageRetentionDuration_;
      }
    }

    /**
     *
     *
     * <pre>
     * Output only. Indicates the minimum duration for which a message is retained
     * after it is published to the subscription's topic. If this field is set,
     * messages published to the subscription's topic in the last
     * `topic_message_retention_duration` are always available to subscribers. See
     * the `message_retention_duration` field in `Topic`. This field is set only
     * in responses from the server; it is ignored if it is set in any requests.
     * </pre>
     *
     * <code>
     * .google.protobuf.Duration topic_message_retention_duration = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.protobuf.Duration,
            com.google.protobuf.Duration.Builder,
            com.google.protobuf.DurationOrBuilder>
        internalGetTopicMessageRetentionDurationFieldBuilder() {
      if (topicMessageRetentionDurationBuilder_ == null) {
        topicMessageRetentionDurationBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.protobuf.Duration,
                com.google.protobuf.Duration.Builder,
                com.google.protobuf.DurationOrBuilder>(
                getTopicMessageRetentionDuration(), getParentForChildren(), isClean());
        topicMessageRetentionDuration_ = null;
      }
      return topicMessageRetentionDurationBuilder_;
    }

    private int state_ = 0;

    /**
     *
     *
     * <pre>
     * Output only. An output-only field indicating whether or not the
     * subscription can receive messages.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.State state = 19 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return The enum numeric value on the wire for state.
     */
    @java.lang.Override
    public int getStateValue() {
      return state_;
    }

    /**
     *
     *
     * <pre>
     * Output only. An output-only field indicating whether or not the
     * subscription can receive messages.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.State state = 19 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @param value The enum numeric value on the wire for state to set.
     * @return This builder for chaining.
     */
    public Builder setStateValue(int value) {
      state_ = value;
      bitField0_ |= 0x00020000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. An output-only field indicating whether or not the
     * subscription can receive messages.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.State state = 19 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return The state.
     */
    @java.lang.Override
    public com.google.pubsub.v1.Subscription.State getState() {
      com.google.pubsub.v1.Subscription.State result =
          com.google.pubsub.v1.Subscription.State.forNumber(state_);
      return result == null ? com.google.pubsub.v1.Subscription.State.UNRECOGNIZED : result;
    }

    /**
     *
     *
     * <pre>
     * Output only. An output-only field indicating whether or not the
     * subscription can receive messages.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.State state = 19 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @param value The state to set.
     * @return This builder for chaining.
     */
    public Builder setState(com.google.pubsub.v1.Subscription.State value) {
      if (value == null) {
        throw new NullPointerException();
      }
      bitField0_ |= 0x00020000;
      state_ = value.getNumber();
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. An output-only field indicating whether or not the
     * subscription can receive messages.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.State state = 19 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearState() {
      bitField0_ = (bitField0_ & ~0x00020000);
      state_ = 0;
      onChanged();
      return this;
    }

    private com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
        analyticsHubSubscriptionInfo_;
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo,
            com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.Builder,
            com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfoOrBuilder>
        analyticsHubSubscriptionInfoBuilder_;

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return Whether the analyticsHubSubscriptionInfo field is set.
     */
    public boolean hasAnalyticsHubSubscriptionInfo() {
      return ((bitField0_ & 0x00040000) != 0);
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return The analyticsHubSubscriptionInfo.
     */
    public com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
        getAnalyticsHubSubscriptionInfo() {
      if (analyticsHubSubscriptionInfoBuilder_ == null) {
        return analyticsHubSubscriptionInfo_ == null
            ? com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.getDefaultInstance()
            : analyticsHubSubscriptionInfo_;
      } else {
        return analyticsHubSubscriptionInfoBuilder_.getMessage();
      }
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder setAnalyticsHubSubscriptionInfo(
        com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo value) {
      if (analyticsHubSubscriptionInfoBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        analyticsHubSubscriptionInfo_ = value;
      } else {
        analyticsHubSubscriptionInfoBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00040000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder setAnalyticsHubSubscriptionInfo(
        com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.Builder builderForValue) {
      if (analyticsHubSubscriptionInfoBuilder_ == null) {
        analyticsHubSubscriptionInfo_ = builderForValue.build();
      } else {
        analyticsHubSubscriptionInfoBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00040000;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder mergeAnalyticsHubSubscriptionInfo(
        com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo value) {
      if (analyticsHubSubscriptionInfoBuilder_ == null) {
        if (((bitField0_ & 0x00040000) != 0)
            && analyticsHubSubscriptionInfo_ != null
            && analyticsHubSubscriptionInfo_
                != com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo
                    .getDefaultInstance()) {
          getAnalyticsHubSubscriptionInfoBuilder().mergeFrom(value);
        } else {
          analyticsHubSubscriptionInfo_ = value;
        }
      } else {
        analyticsHubSubscriptionInfoBuilder_.mergeFrom(value);
      }
      if (analyticsHubSubscriptionInfo_ != null) {
        bitField0_ |= 0x00040000;
        onChanged();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder clearAnalyticsHubSubscriptionInfo() {
      bitField0_ = (bitField0_ & ~0x00040000);
      analyticsHubSubscriptionInfo_ = null;
      if (analyticsHubSubscriptionInfoBuilder_ != null) {
        analyticsHubSubscriptionInfoBuilder_.dispose();
        analyticsHubSubscriptionInfoBuilder_ = null;
      }
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.Builder
        getAnalyticsHubSubscriptionInfoBuilder() {
      bitField0_ |= 0x00040000;
      onChanged();
      return internalGetAnalyticsHubSubscriptionInfoFieldBuilder().getBuilder();
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfoOrBuilder
        getAnalyticsHubSubscriptionInfoOrBuilder() {
      if (analyticsHubSubscriptionInfoBuilder_ != null) {
        return analyticsHubSubscriptionInfoBuilder_.getMessageOrBuilder();
      } else {
        return analyticsHubSubscriptionInfo_ == null
            ? com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.getDefaultInstance()
            : analyticsHubSubscriptionInfo_;
      }
    }

    /**
     *
     *
     * <pre>
     * Output only. Information about the associated Analytics Hub subscription.
     * Only set if the subscription is created by Analytics Hub.
     * </pre>
     *
     * <code>
     * .google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo analytics_hub_subscription_info = 23 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilder<
            com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo,
            com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.Builder,
            com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfoOrBuilder>
        internalGetAnalyticsHubSubscriptionInfoFieldBuilder() {
      if (analyticsHubSubscriptionInfoBuilder_ == null) {
        analyticsHubSubscriptionInfoBuilder_ =
            new com.google.protobuf.SingleFieldBuilder<
                com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo,
                com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfo.Builder,
                com.google.pubsub.v1.Subscription.AnalyticsHubSubscriptionInfoOrBuilder>(
                getAnalyticsHubSubscriptionInfo(), getParentForChildren(), isClean());
        analyticsHubSubscriptionInfo_ = null;
      }
      return analyticsHubSubscriptionInfoBuilder_;
    }

    private java.util.List<com.google.pubsub.v1.MessageTransform> messageTransforms_ =
        java.util.Collections.emptyList();

    private void ensureMessageTransformsIsMutable() {
      if (!((bitField0_ & 0x00080000) != 0)) {
        messageTransforms_ =
            new java.util.ArrayList<com.google.pubsub.v1.MessageTransform>(messageTransforms_);
        bitField0_ |= 0x00080000;
      }
    }

    private com.google.protobuf.RepeatedFieldBuilder<
            com.google.pubsub.v1.MessageTransform,
            com.google.pubsub.v1.MessageTransform.Builder,
            com.google.pubsub.v1.MessageTransformOrBuilder>
        messageTransformsBuilder_;

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public java.util.List<com.google.pubsub.v1.MessageTransform> getMessageTransformsList() {
      if (messageTransformsBuilder_ == null) {
        return java.util.Collections.unmodifiableList(messageTransforms_);
      } else {
        return messageTransformsBuilder_.getMessageList();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public int getMessageTransformsCount() {
      if (messageTransformsBuilder_ == null) {
        return messageTransforms_.size();
      } else {
        return messageTransformsBuilder_.getCount();
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.MessageTransform getMessageTransforms(int index) {
      if (messageTransformsBuilder_ == null) {
        return messageTransforms_.get(index);
      } else {
        return messageTransformsBuilder_.getMessage(index);
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setMessageTransforms(int index, com.google.pubsub.v1.MessageTransform value) {
      if (messageTransformsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureMessageTransformsIsMutable();
        messageTransforms_.set(index, value);
        onChanged();
      } else {
        messageTransformsBuilder_.setMessage(index, value);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setMessageTransforms(
        int index, com.google.pubsub.v1.MessageTransform.Builder builderForValue) {
      if (messageTransformsBuilder_ == null) {
        ensureMessageTransformsIsMutable();
        messageTransforms_.set(index, builderForValue.build());
        onChanged();
      } else {
        messageTransformsBuilder_.setMessage(index, builderForValue.build());
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder addMessageTransforms(com.google.pubsub.v1.MessageTransform value) {
      if (messageTransformsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureMessageTransformsIsMutable();
        messageTransforms_.add(value);
        onChanged();
      } else {
        messageTransformsBuilder_.addMessage(value);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder addMessageTransforms(int index, com.google.pubsub.v1.MessageTransform value) {
      if (messageTransformsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureMessageTransformsIsMutable();
        messageTransforms_.add(index, value);
        onChanged();
      } else {
        messageTransformsBuilder_.addMessage(index, value);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder addMessageTransforms(
        com.google.pubsub.v1.MessageTransform.Builder builderForValue) {
      if (messageTransformsBuilder_ == null) {
        ensureMessageTransformsIsMutable();
        messageTransforms_.add(builderForValue.build());
        onChanged();
      } else {
        messageTransformsBuilder_.addMessage(builderForValue.build());
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder addMessageTransforms(
        int index, com.google.pubsub.v1.MessageTransform.Builder builderForValue) {
      if (messageTransformsBuilder_ == null) {
        ensureMessageTransformsIsMutable();
        messageTransforms_.add(index, builderForValue.build());
        onChanged();
      } else {
        messageTransformsBuilder_.addMessage(index, builderForValue.build());
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder addAllMessageTransforms(
        java.lang.Iterable<? extends com.google.pubsub.v1.MessageTransform> values) {
      if (messageTransformsBuilder_ == null) {
        ensureMessageTransformsIsMutable();
        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, messageTransforms_);
        onChanged();
      } else {
        messageTransformsBuilder_.addAllMessages(values);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearMessageTransforms() {
      if (messageTransformsBuilder_ == null) {
        messageTransforms_ = java.util.Collections.emptyList();
        bitField0_ = (bitField0_ & ~0x00080000);
        onChanged();
      } else {
        messageTransformsBuilder_.clear();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder removeMessageTransforms(int index) {
      if (messageTransformsBuilder_ == null) {
        ensureMessageTransformsIsMutable();
        messageTransforms_.remove(index);
        onChanged();
      } else {
        messageTransformsBuilder_.remove(index);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.MessageTransform.Builder getMessageTransformsBuilder(int index) {
      return internalGetMessageTransformsFieldBuilder().getBuilder(index);
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.MessageTransformOrBuilder getMessageTransformsOrBuilder(int index) {
      if (messageTransformsBuilder_ == null) {
        return messageTransforms_.get(index);
      } else {
        return messageTransformsBuilder_.getMessageOrBuilder(index);
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public java.util.List<? extends com.google.pubsub.v1.MessageTransformOrBuilder>
        getMessageTransformsOrBuilderList() {
      if (messageTransformsBuilder_ != null) {
        return messageTransformsBuilder_.getMessageOrBuilderList();
      } else {
        return java.util.Collections.unmodifiableList(messageTransforms_);
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.MessageTransform.Builder addMessageTransformsBuilder() {
      return internalGetMessageTransformsFieldBuilder()
          .addBuilder(com.google.pubsub.v1.MessageTransform.getDefaultInstance());
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.pubsub.v1.MessageTransform.Builder addMessageTransformsBuilder(int index) {
      return internalGetMessageTransformsFieldBuilder()
          .addBuilder(index, com.google.pubsub.v1.MessageTransform.getDefaultInstance());
    }

    /**
     *
     *
     * <pre>
     * Optional. Transforms to be applied to messages before they are delivered to
     * subscribers. Transforms are applied in the order specified.
     * </pre>
     *
     * <code>
     * repeated .google.pubsub.v1.MessageTransform message_transforms = 25 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public java.util.List<com.google.pubsub.v1.MessageTransform.Builder>
        getMessageTransformsBuilderList() {
      return internalGetMessageTransformsFieldBuilder().getBuilderList();
    }

    private com.google.protobuf.RepeatedFieldBuilder<
            com.google.pubsub.v1.MessageTransform,
            com.google.pubsub.v1.MessageTransform.Builder,
            com.google.pubsub.v1.MessageTransformOrBuilder>
        internalGetMessageTransformsFieldBuilder() {
      if (messageTransformsBuilder_ == null) {
        messageTransformsBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilder<
                com.google.pubsub.v1.MessageTransform,
                com.google.pubsub.v1.MessageTransform.Builder,
                com.google.pubsub.v1.MessageTransformOrBuilder>(
                messageTransforms_,
                ((bitField0_ & 0x00080000) != 0),
                getParentForChildren(),
                isClean());
        messageTransforms_ = null;
      }
      return messageTransformsBuilder_;
    }

    private com.google.protobuf.MapField<java.lang.String, java.lang.String> tags_;

    private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetTags() {
      if (tags_ == null) {
        return com.google.protobuf.MapField.emptyMapField(TagsDefaultEntryHolder.defaultEntry);
      }
      return tags_;
    }

    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
        internalGetMutableTags() {
      if (tags_ == null) {
        tags_ = com.google.protobuf.MapField.newMapField(TagsDefaultEntryHolder.defaultEntry);
      }
      if (!tags_.isMutable()) {
        tags_ = tags_.copy();
      }
      bitField0_ |= 0x00100000;
      onChanged();
      return tags_;
    }

    public int getTagsCount() {
      return internalGetTags().getMap().size();
    }

    /**
     *
     *
     * <pre>
     * Optional. Input only. Immutable. Tag keys/values directly bound to this
     * resource. For example:
     * "123/environment": "production",
     * "123/costCenter": "marketing"
     * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
     * using tags with Pub/Sub resources.
     * </pre>
     *
     * <code>
     * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    @java.lang.Override
    public boolean containsTags(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      return internalGetTags().getMap().containsKey(key);
    }

    /** Use {@link #getTagsMap()} instead. */
    @java.lang.Override
    @java.lang.Deprecated
    public java.util.Map<java.lang.String, java.lang.String> getTags() {
      return getTagsMap();
    }

    /**
     *
     *
     * <pre>
     * Optional. Input only. Immutable. Tag keys/values directly bound to this
     * resource. For example:
     * "123/environment": "production",
     * "123/costCenter": "marketing"
     * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
     * using tags with Pub/Sub resources.
     * </pre>
     *
     * <code>
     * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    @java.lang.Override
    public java.util.Map<java.lang.String, java.lang.String> getTagsMap() {
      return internalGetTags().getMap();
    }

    /**
     *
     *
     * <pre>
     * Optional. Input only. Immutable. Tag keys/values directly bound to this
     * resource. For example:
     * "123/environment": "production",
     * "123/costCenter": "marketing"
     * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
     * using tags with Pub/Sub resources.
     * </pre>
     *
     * <code>
     * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    @java.lang.Override
    public /* nullable */ java.lang.String getTagsOrDefault(
        java.lang.String key,
        /* nullable */
        java.lang.String defaultValue) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      java.util.Map<java.lang.String, java.lang.String> map = internalGetTags().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }

    /**
     *
     *
     * <pre>
     * Optional. Input only. Immutable. Tag keys/values directly bound to this
     * resource. For example:
     * "123/environment": "production",
     * "123/costCenter": "marketing"
     * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
     * using tags with Pub/Sub resources.
     * </pre>
     *
     * <code>
     * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    @java.lang.Override
    public java.lang.String getTagsOrThrow(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      java.util.Map<java.lang.String, java.lang.String> map = internalGetTags().getMap();
      if (!map.containsKey(key)) {
        throw new java.lang.IllegalArgumentException();
      }
      return map.get(key);
    }

    public Builder clearTags() {
      bitField0_ = (bitField0_ & ~0x00100000);
      internalGetMutableTags().getMutableMap().clear();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Input only. Immutable. Tag keys/values directly bound to this
     * resource. For example:
     * "123/environment": "production",
     * "123/costCenter": "marketing"
     * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
     * using tags with Pub/Sub resources.
     * </pre>
     *
     * <code>
     * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder removeTags(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      internalGetMutableTags().getMutableMap().remove(key);
      return this;
    }

    /** Use alternate mutation accessors instead. */
    @java.lang.Deprecated
    public java.util.Map<java.lang.String, java.lang.String> getMutableTags() {
      bitField0_ |= 0x00100000;
      return internalGetMutableTags().getMutableMap();
    }

    /**
     *
     *
     * <pre>
     * Optional. Input only. Immutable. Tag keys/values directly bound to this
     * resource. For example:
     * "123/environment": "production",
     * "123/costCenter": "marketing"
     * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
     * using tags with Pub/Sub resources.
     * </pre>
     *
     * <code>
     * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder putTags(java.lang.String key, java.lang.String value) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      if (value == null) {
        throw new NullPointerException("map value");
      }
      internalGetMutableTags().getMutableMap().put(key, value);
      bitField0_ |= 0x00100000;
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Input only. Immutable. Tag keys/values directly bound to this
     * resource. For example:
     * "123/environment": "production",
     * "123/costCenter": "marketing"
     * See https://docs.cloud.google.com/pubsub/docs/tags for more information on
     * using tags with Pub/Sub resources.
     * </pre>
     *
     * <code>
     * map&lt;string, string&gt; tags = 26 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder putAllTags(java.util.Map<java.lang.String, java.lang.String> values) {
      internalGetMutableTags().getMutableMap().putAll(values);
      bitField0_ |= 0x00100000;
      return this;
    }

    // @@protoc_insertion_point(builder_scope:google.pubsub.v1.Subscription)
  }

  // @@protoc_insertion_point(class_scope:google.pubsub.v1.Subscription)
  private static final com.google.pubsub.v1.Subscription DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.pubsub.v1.Subscription();
  }

  public static com.google.pubsub.v1.Subscription getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<Subscription> PARSER =
      new com.google.protobuf.AbstractParser<Subscription>() {
        @java.lang.Override
        public Subscription parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

  public static com.google.protobuf.Parser<Subscription> parser() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.protobuf.Parser<Subscription> getParserForType() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.pubsub.v1.Subscription getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}
