// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: google/spanner/v1/spanner.proto

package com.google.spanner.v1;

/**
 *
 *
 * <pre>
 * A session in the Cloud Spanner API.
 * </pre>
 *
 * Protobuf type {@code google.spanner.v1.Session}
 */
public final class Session extends com.google.protobuf.GeneratedMessageV3
    implements
    // @@protoc_insertion_point(message_implements:google.spanner.v1.Session)
    SessionOrBuilder {
  private static final long serialVersionUID = 0L;
  // Use Session.newBuilder() to construct.
  private Session(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
    super(builder);
  }

  private Session() {
    name_ = "";
  }

  @java.lang.Override
  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
    return this.unknownFields;
  }

  private Session(
      com.google.protobuf.CodedInputStream input,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    this();
    if (extensionRegistry == null) {
      throw new java.lang.NullPointerException();
    }
    int mutable_bitField0_ = 0;
    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
        com.google.protobuf.UnknownFieldSet.newBuilder();
    try {
      boolean done = false;
      while (!done) {
        int tag = input.readTag();
        switch (tag) {
          case 0:
            done = true;
            break;
          case 10:
            {
              java.lang.String s = input.readStringRequireUtf8();

              name_ = s;
              break;
            }
          case 18:
            {
              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
                labels_ =
                    com.google.protobuf.MapField.newMapField(LabelsDefaultEntryHolder.defaultEntry);
                mutable_bitField0_ |= 0x00000002;
              }
              com.google.protobuf.MapEntry<java.lang.String, java.lang.String> labels__ =
                  input.readMessage(
                      LabelsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
              labels_.getMutableMap().put(labels__.getKey(), labels__.getValue());
              break;
            }
          case 26:
            {
              com.google.protobuf.Timestamp.Builder subBuilder = null;
              if (createTime_ != null) {
                subBuilder = createTime_.toBuilder();
              }
              createTime_ =
                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(createTime_);
                createTime_ = subBuilder.buildPartial();
              }

              break;
            }
          case 34:
            {
              com.google.protobuf.Timestamp.Builder subBuilder = null;
              if (approximateLastUseTime_ != null) {
                subBuilder = approximateLastUseTime_.toBuilder();
              }
              approximateLastUseTime_ =
                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(approximateLastUseTime_);
                approximateLastUseTime_ = subBuilder.buildPartial();
              }

              break;
            }
          default:
            {
              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
        }
      }
    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
      throw e.setUnfinishedMessage(this);
    } catch (java.io.IOException e) {
      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
    } finally {
      this.unknownFields = unknownFields.build();
      makeExtensionsImmutable();
    }
  }

  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    return com.google.spanner.v1.SpannerProto.internal_static_google_spanner_v1_Session_descriptor;
  }

  @SuppressWarnings({"rawtypes"})
  @java.lang.Override
  protected com.google.protobuf.MapField internalGetMapField(int number) {
    switch (number) {
      case 2:
        return internalGetLabels();
      default:
        throw new RuntimeException("Invalid map field number: " + number);
    }
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
      internalGetFieldAccessorTable() {
    return com.google.spanner.v1.SpannerProto
        .internal_static_google_spanner_v1_Session_fieldAccessorTable
        .ensureFieldAccessorsInitialized(
            com.google.spanner.v1.Session.class, com.google.spanner.v1.Session.Builder.class);
  }

  private int bitField0_;
  public static final int NAME_FIELD_NUMBER = 1;
  private volatile java.lang.Object name_;
  /**
   *
   *
   * <pre>
   * The name of the session. This is always system-assigned; values provided
   * when creating a session are ignored.
   * </pre>
   *
   * <code>string name = 1;</code>
   */
  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>
   * The name of the session. This is always system-assigned; values provided
   * when creating a session are ignored.
   * </pre>
   *
   * <code>string name = 1;</code>
   */
  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 LABELS_FIELD_NUMBER = 2;

  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.spanner.v1.SpannerProto
                .internal_static_google_spanner_v1_Session_LabelsEntry_descriptor,
            com.google.protobuf.WireFormat.FieldType.STRING,
            "",
            com.google.protobuf.WireFormat.FieldType.STRING,
            "");
  }

  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>
   * The labels for the session.
   *  * Label keys must be between 1 and 63 characters long and must conform to
   *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
   *  * Label values must be between 0 and 63 characters long and must conform
   *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
   *  * No more than 64 labels can be associated with a given session.
   * See https://goo.gl/xmQnxf for more information on and examples of labels.
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 2;</code>
   */
  public boolean containsLabels(java.lang.String key) {
    if (key == null) {
      throw new java.lang.NullPointerException();
    }
    return internalGetLabels().getMap().containsKey(key);
  }
  /** Use {@link #getLabelsMap()} instead. */
  @java.lang.Deprecated
  public java.util.Map<java.lang.String, java.lang.String> getLabels() {
    return getLabelsMap();
  }
  /**
   *
   *
   * <pre>
   * The labels for the session.
   *  * Label keys must be between 1 and 63 characters long and must conform to
   *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
   *  * Label values must be between 0 and 63 characters long and must conform
   *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
   *  * No more than 64 labels can be associated with a given session.
   * See https://goo.gl/xmQnxf for more information on and examples of labels.
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 2;</code>
   */
  public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
    return internalGetLabels().getMap();
  }
  /**
   *
   *
   * <pre>
   * The labels for the session.
   *  * Label keys must be between 1 and 63 characters long and must conform to
   *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
   *  * Label values must be between 0 and 63 characters long and must conform
   *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
   *  * No more than 64 labels can be associated with a given session.
   * See https://goo.gl/xmQnxf for more information on and examples of labels.
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 2;</code>
   */
  public java.lang.String getLabelsOrDefault(java.lang.String key, java.lang.String defaultValue) {
    if (key == null) {
      throw new java.lang.NullPointerException();
    }
    java.util.Map<java.lang.String, java.lang.String> map = internalGetLabels().getMap();
    return map.containsKey(key) ? map.get(key) : defaultValue;
  }
  /**
   *
   *
   * <pre>
   * The labels for the session.
   *  * Label keys must be between 1 and 63 characters long and must conform to
   *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
   *  * Label values must be between 0 and 63 characters long and must conform
   *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
   *  * No more than 64 labels can be associated with a given session.
   * See https://goo.gl/xmQnxf for more information on and examples of labels.
   * </pre>
   *
   * <code>map&lt;string, string&gt; labels = 2;</code>
   */
  public java.lang.String getLabelsOrThrow(java.lang.String key) {
    if (key == null) {
      throw new java.lang.NullPointerException();
    }
    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 CREATE_TIME_FIELD_NUMBER = 3;
  private com.google.protobuf.Timestamp createTime_;
  /**
   *
   *
   * <pre>
   * Output only. The timestamp when the session is created.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp create_time = 3;</code>
   */
  public boolean hasCreateTime() {
    return createTime_ != null;
  }
  /**
   *
   *
   * <pre>
   * Output only. The timestamp when the session is created.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp create_time = 3;</code>
   */
  public com.google.protobuf.Timestamp getCreateTime() {
    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
  }
  /**
   *
   *
   * <pre>
   * Output only. The timestamp when the session is created.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp create_time = 3;</code>
   */
  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
    return getCreateTime();
  }

  public static final int APPROXIMATE_LAST_USE_TIME_FIELD_NUMBER = 4;
  private com.google.protobuf.Timestamp approximateLastUseTime_;
  /**
   *
   *
   * <pre>
   * Output only. The approximate timestamp when the session is last used. It is
   * typically earlier than the actual last use time.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
   */
  public boolean hasApproximateLastUseTime() {
    return approximateLastUseTime_ != null;
  }
  /**
   *
   *
   * <pre>
   * Output only. The approximate timestamp when the session is last used. It is
   * typically earlier than the actual last use time.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
   */
  public com.google.protobuf.Timestamp getApproximateLastUseTime() {
    return approximateLastUseTime_ == null
        ? com.google.protobuf.Timestamp.getDefaultInstance()
        : approximateLastUseTime_;
  }
  /**
   *
   *
   * <pre>
   * Output only. The approximate timestamp when the session is last used. It is
   * typically earlier than the actual last use time.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
   */
  public com.google.protobuf.TimestampOrBuilder getApproximateLastUseTimeOrBuilder() {
    return getApproximateLastUseTime();
  }

  private byte memoizedIsInitialized = -1;

  @java.lang.Override
  public final boolean isInitialized() {
    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
    return true;
  }

  @java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!getNameBytes().isEmpty()) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
    }
    com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
        output, internalGetLabels(), LabelsDefaultEntryHolder.defaultEntry, 2);
    if (createTime_ != null) {
      output.writeMessage(3, getCreateTime());
    }
    if (approximateLastUseTime_ != null) {
      output.writeMessage(4, getApproximateLastUseTime());
    }
    unknownFields.writeTo(output);
  }

  @java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (!getNameBytes().isEmpty()) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
    }
    for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
        internalGetLabels().getMap().entrySet()) {
      com.google.protobuf.MapEntry<java.lang.String, java.lang.String> labels__ =
          LabelsDefaultEntryHolder.defaultEntry
              .newBuilderForType()
              .setKey(entry.getKey())
              .setValue(entry.getValue())
              .build();
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, labels__);
    }
    if (createTime_ != null) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getCreateTime());
    }
    if (approximateLastUseTime_ != null) {
      size +=
          com.google.protobuf.CodedOutputStream.computeMessageSize(4, getApproximateLastUseTime());
    }
    size += unknownFields.getSerializedSize();
    memoizedSize = size;
    return size;
  }

  @java.lang.Override
  public boolean equals(final java.lang.Object obj) {
    if (obj == this) {
      return true;
    }
    if (!(obj instanceof com.google.spanner.v1.Session)) {
      return super.equals(obj);
    }
    com.google.spanner.v1.Session other = (com.google.spanner.v1.Session) obj;

    if (!getName().equals(other.getName())) return false;
    if (!internalGetLabels().equals(other.internalGetLabels())) return false;
    if (hasCreateTime() != other.hasCreateTime()) return false;
    if (hasCreateTime()) {
      if (!getCreateTime().equals(other.getCreateTime())) return false;
    }
    if (hasApproximateLastUseTime() != other.hasApproximateLastUseTime()) return false;
    if (hasApproximateLastUseTime()) {
      if (!getApproximateLastUseTime().equals(other.getApproximateLastUseTime())) return false;
    }
    if (!unknownFields.equals(other.unknownFields)) 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();
    if (!internalGetLabels().getMap().isEmpty()) {
      hash = (37 * hash) + LABELS_FIELD_NUMBER;
      hash = (53 * hash) + internalGetLabels().hashCode();
    }
    if (hasCreateTime()) {
      hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
      hash = (53 * hash) + getCreateTime().hashCode();
    }
    if (hasApproximateLastUseTime()) {
      hash = (37 * hash) + APPROXIMATE_LAST_USE_TIME_FIELD_NUMBER;
      hash = (53 * hash) + getApproximateLastUseTime().hashCode();
    }
    hash = (29 * hash) + unknownFields.hashCode();
    memoizedHashCode = hash;
    return hash;
  }

  public static com.google.spanner.v1.Session parseFrom(java.nio.ByteBuffer data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

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

  public static com.google.spanner.v1.Session parseFrom(com.google.protobuf.ByteString data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.spanner.v1.Session parseFrom(
      com.google.protobuf.ByteString data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }

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

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

  public static com.google.spanner.v1.Session parseFrom(java.io.InputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }

  public static com.google.spanner.v1.Session parseFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
  }

  public static com.google.spanner.v1.Session parseDelimitedFrom(java.io.InputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
  }

  public static com.google.spanner.v1.Session parseDelimitedFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
        PARSER, input, extensionRegistry);
  }

  public static com.google.spanner.v1.Session parseFrom(com.google.protobuf.CodedInputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }

  public static com.google.spanner.v1.Session parseFrom(
      com.google.protobuf.CodedInputStream input,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
  }

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

  public static Builder newBuilder() {
    return DEFAULT_INSTANCE.toBuilder();
  }

  public static Builder newBuilder(com.google.spanner.v1.Session prototype) {
    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
  }

  @java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }

  @java.lang.Override
  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
    Builder builder = new Builder(parent);
    return builder;
  }
  /**
   *
   *
   * <pre>
   * A session in the Cloud Spanner API.
   * </pre>
   *
   * Protobuf type {@code google.spanner.v1.Session}
   */
  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
      implements
      // @@protoc_insertion_point(builder_implements:google.spanner.v1.Session)
      com.google.spanner.v1.SessionOrBuilder {
    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
      return com.google.spanner.v1.SpannerProto
          .internal_static_google_spanner_v1_Session_descriptor;
    }

    @SuppressWarnings({"rawtypes"})
    protected com.google.protobuf.MapField internalGetMapField(int number) {
      switch (number) {
        case 2:
          return internalGetLabels();
        default:
          throw new RuntimeException("Invalid map field number: " + number);
      }
    }

    @SuppressWarnings({"rawtypes"})
    protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
      switch (number) {
        case 2:
          return internalGetMutableLabels();
        default:
          throw new RuntimeException("Invalid map field number: " + number);
      }
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return com.google.spanner.v1.SpannerProto
          .internal_static_google_spanner_v1_Session_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              com.google.spanner.v1.Session.class, com.google.spanner.v1.Session.Builder.class);
    }

    // Construct using com.google.spanner.v1.Session.newBuilder()
    private Builder() {
      maybeForceBuilderInitialization();
    }

    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      super(parent);
      maybeForceBuilderInitialization();
    }

    private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
    }

    @java.lang.Override
    public Builder clear() {
      super.clear();
      name_ = "";

      internalGetMutableLabels().clear();
      if (createTimeBuilder_ == null) {
        createTime_ = null;
      } else {
        createTime_ = null;
        createTimeBuilder_ = null;
      }
      if (approximateLastUseTimeBuilder_ == null) {
        approximateLastUseTime_ = null;
      } else {
        approximateLastUseTime_ = null;
        approximateLastUseTimeBuilder_ = null;
      }
      return this;
    }

    @java.lang.Override
    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
      return com.google.spanner.v1.SpannerProto
          .internal_static_google_spanner_v1_Session_descriptor;
    }

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

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

    @java.lang.Override
    public com.google.spanner.v1.Session buildPartial() {
      com.google.spanner.v1.Session result = new com.google.spanner.v1.Session(this);
      int from_bitField0_ = bitField0_;
      int to_bitField0_ = 0;
      result.name_ = name_;
      result.labels_ = internalGetLabels();
      result.labels_.makeImmutable();
      if (createTimeBuilder_ == null) {
        result.createTime_ = createTime_;
      } else {
        result.createTime_ = createTimeBuilder_.build();
      }
      if (approximateLastUseTimeBuilder_ == null) {
        result.approximateLastUseTime_ = approximateLastUseTime_;
      } else {
        result.approximateLastUseTime_ = approximateLastUseTimeBuilder_.build();
      }
      result.bitField0_ = to_bitField0_;
      onBuilt();
      return result;
    }

    @java.lang.Override
    public Builder clone() {
      return super.clone();
    }

    @java.lang.Override
    public Builder setField(
        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
      return super.setField(field, value);
    }

    @java.lang.Override
    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
      return super.clearField(field);
    }

    @java.lang.Override
    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
      return super.clearOneof(oneof);
    }

    @java.lang.Override
    public Builder setRepeatedField(
        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
      return super.setRepeatedField(field, index, value);
    }

    @java.lang.Override
    public Builder addRepeatedField(
        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
      return super.addRepeatedField(field, value);
    }

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

    public Builder mergeFrom(com.google.spanner.v1.Session other) {
      if (other == com.google.spanner.v1.Session.getDefaultInstance()) return this;
      if (!other.getName().isEmpty()) {
        name_ = other.name_;
        onChanged();
      }
      internalGetMutableLabels().mergeFrom(other.internalGetLabels());
      if (other.hasCreateTime()) {
        mergeCreateTime(other.getCreateTime());
      }
      if (other.hasApproximateLastUseTime()) {
        mergeApproximateLastUseTime(other.getApproximateLastUseTime());
      }
      this.mergeUnknownFields(other.unknownFields);
      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 {
      com.google.spanner.v1.Session parsedMessage = null;
      try {
        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        parsedMessage = (com.google.spanner.v1.Session) e.getUnfinishedMessage();
        throw e.unwrapIOException();
      } finally {
        if (parsedMessage != null) {
          mergeFrom(parsedMessage);
        }
      }
      return this;
    }

    private int bitField0_;

    private java.lang.Object name_ = "";
    /**
     *
     *
     * <pre>
     * The name of the session. This is always system-assigned; values provided
     * when creating a session are ignored.
     * </pre>
     *
     * <code>string name = 1;</code>
     */
    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>
     * The name of the session. This is always system-assigned; values provided
     * when creating a session are ignored.
     * </pre>
     *
     * <code>string name = 1;</code>
     */
    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>
     * The name of the session. This is always system-assigned; values provided
     * when creating a session are ignored.
     * </pre>
     *
     * <code>string name = 1;</code>
     */
    public Builder setName(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }

      name_ = value;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The name of the session. This is always system-assigned; values provided
     * when creating a session are ignored.
     * </pre>
     *
     * <code>string name = 1;</code>
     */
    public Builder clearName() {

      name_ = getDefaultInstance().getName();
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The name of the session. This is always system-assigned; values provided
     * when creating a session are ignored.
     * </pre>
     *
     * <code>string name = 1;</code>
     */
    public Builder setNameBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);

      name_ = value;
      onChanged();
      return this;
    }

    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() {
      onChanged();
      ;
      if (labels_ == null) {
        labels_ = com.google.protobuf.MapField.newMapField(LabelsDefaultEntryHolder.defaultEntry);
      }
      if (!labels_.isMutable()) {
        labels_ = labels_.copy();
      }
      return labels_;
    }

    public int getLabelsCount() {
      return internalGetLabels().getMap().size();
    }
    /**
     *
     *
     * <pre>
     * The labels for the session.
     *  * Label keys must be between 1 and 63 characters long and must conform to
     *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
     *  * Label values must be between 0 and 63 characters long and must conform
     *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
     *  * No more than 64 labels can be associated with a given session.
     * See https://goo.gl/xmQnxf for more information on and examples of labels.
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 2;</code>
     */
    public boolean containsLabels(java.lang.String key) {
      if (key == null) {
        throw new java.lang.NullPointerException();
      }
      return internalGetLabels().getMap().containsKey(key);
    }
    /** Use {@link #getLabelsMap()} instead. */
    @java.lang.Deprecated
    public java.util.Map<java.lang.String, java.lang.String> getLabels() {
      return getLabelsMap();
    }
    /**
     *
     *
     * <pre>
     * The labels for the session.
     *  * Label keys must be between 1 and 63 characters long and must conform to
     *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
     *  * Label values must be between 0 and 63 characters long and must conform
     *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
     *  * No more than 64 labels can be associated with a given session.
     * See https://goo.gl/xmQnxf for more information on and examples of labels.
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 2;</code>
     */
    public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
      return internalGetLabels().getMap();
    }
    /**
     *
     *
     * <pre>
     * The labels for the session.
     *  * Label keys must be between 1 and 63 characters long and must conform to
     *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
     *  * Label values must be between 0 and 63 characters long and must conform
     *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
     *  * No more than 64 labels can be associated with a given session.
     * See https://goo.gl/xmQnxf for more information on and examples of labels.
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 2;</code>
     */
    public java.lang.String getLabelsOrDefault(
        java.lang.String key, java.lang.String defaultValue) {
      if (key == null) {
        throw new java.lang.NullPointerException();
      }
      java.util.Map<java.lang.String, java.lang.String> map = internalGetLabels().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }
    /**
     *
     *
     * <pre>
     * The labels for the session.
     *  * Label keys must be between 1 and 63 characters long and must conform to
     *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
     *  * Label values must be between 0 and 63 characters long and must conform
     *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
     *  * No more than 64 labels can be associated with a given session.
     * See https://goo.gl/xmQnxf for more information on and examples of labels.
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 2;</code>
     */
    public java.lang.String getLabelsOrThrow(java.lang.String key) {
      if (key == null) {
        throw new java.lang.NullPointerException();
      }
      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() {
      internalGetMutableLabels().getMutableMap().clear();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The labels for the session.
     *  * Label keys must be between 1 and 63 characters long and must conform to
     *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
     *  * Label values must be between 0 and 63 characters long and must conform
     *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
     *  * No more than 64 labels can be associated with a given session.
     * See https://goo.gl/xmQnxf for more information on and examples of labels.
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 2;</code>
     */
    public Builder removeLabels(java.lang.String key) {
      if (key == null) {
        throw new java.lang.NullPointerException();
      }
      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() {
      return internalGetMutableLabels().getMutableMap();
    }
    /**
     *
     *
     * <pre>
     * The labels for the session.
     *  * Label keys must be between 1 and 63 characters long and must conform to
     *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
     *  * Label values must be between 0 and 63 characters long and must conform
     *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
     *  * No more than 64 labels can be associated with a given session.
     * See https://goo.gl/xmQnxf for more information on and examples of labels.
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 2;</code>
     */
    public Builder putLabels(java.lang.String key, java.lang.String value) {
      if (key == null) {
        throw new java.lang.NullPointerException();
      }
      if (value == null) {
        throw new java.lang.NullPointerException();
      }
      internalGetMutableLabels().getMutableMap().put(key, value);
      return this;
    }
    /**
     *
     *
     * <pre>
     * The labels for the session.
     *  * Label keys must be between 1 and 63 characters long and must conform to
     *    the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
     *  * Label values must be between 0 and 63 characters long and must conform
     *    to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
     *  * No more than 64 labels can be associated with a given session.
     * See https://goo.gl/xmQnxf for more information on and examples of labels.
     * </pre>
     *
     * <code>map&lt;string, string&gt; labels = 2;</code>
     */
    public Builder putAllLabels(java.util.Map<java.lang.String, java.lang.String> values) {
      internalGetMutableLabels().getMutableMap().putAll(values);
      return this;
    }

    private com.google.protobuf.Timestamp createTime_;
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        createTimeBuilder_;
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public boolean hasCreateTime() {
      return createTimeBuilder_ != null || createTime_ != null;
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public com.google.protobuf.Timestamp getCreateTime() {
      if (createTimeBuilder_ == null) {
        return createTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : createTime_;
      } else {
        return createTimeBuilder_.getMessage();
      }
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
      if (createTimeBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        createTime_ = value;
        onChanged();
      } else {
        createTimeBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public Builder setCreateTime(com.google.protobuf.Timestamp.Builder builderForValue) {
      if (createTimeBuilder_ == null) {
        createTime_ = builderForValue.build();
        onChanged();
      } else {
        createTimeBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
      if (createTimeBuilder_ == null) {
        if (createTime_ != null) {
          createTime_ =
              com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
        } else {
          createTime_ = value;
        }
        onChanged();
      } else {
        createTimeBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public Builder clearCreateTime() {
      if (createTimeBuilder_ == null) {
        createTime_ = null;
        onChanged();
      } else {
        createTime_ = null;
        createTimeBuilder_ = null;
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {

      onChanged();
      return getCreateTimeFieldBuilder().getBuilder();
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
      if (createTimeBuilder_ != null) {
        return createTimeBuilder_.getMessageOrBuilder();
      } else {
        return createTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : createTime_;
      }
    }
    /**
     *
     *
     * <pre>
     * Output only. The timestamp when the session is created.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp create_time = 3;</code>
     */
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        getCreateTimeFieldBuilder() {
      if (createTimeBuilder_ == null) {
        createTimeBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp,
                com.google.protobuf.Timestamp.Builder,
                com.google.protobuf.TimestampOrBuilder>(
                getCreateTime(), getParentForChildren(), isClean());
        createTime_ = null;
      }
      return createTimeBuilder_;
    }

    private com.google.protobuf.Timestamp approximateLastUseTime_;
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        approximateLastUseTimeBuilder_;
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public boolean hasApproximateLastUseTime() {
      return approximateLastUseTimeBuilder_ != null || approximateLastUseTime_ != null;
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public com.google.protobuf.Timestamp getApproximateLastUseTime() {
      if (approximateLastUseTimeBuilder_ == null) {
        return approximateLastUseTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : approximateLastUseTime_;
      } else {
        return approximateLastUseTimeBuilder_.getMessage();
      }
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public Builder setApproximateLastUseTime(com.google.protobuf.Timestamp value) {
      if (approximateLastUseTimeBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        approximateLastUseTime_ = value;
        onChanged();
      } else {
        approximateLastUseTimeBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public Builder setApproximateLastUseTime(
        com.google.protobuf.Timestamp.Builder builderForValue) {
      if (approximateLastUseTimeBuilder_ == null) {
        approximateLastUseTime_ = builderForValue.build();
        onChanged();
      } else {
        approximateLastUseTimeBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public Builder mergeApproximateLastUseTime(com.google.protobuf.Timestamp value) {
      if (approximateLastUseTimeBuilder_ == null) {
        if (approximateLastUseTime_ != null) {
          approximateLastUseTime_ =
              com.google.protobuf.Timestamp.newBuilder(approximateLastUseTime_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          approximateLastUseTime_ = value;
        }
        onChanged();
      } else {
        approximateLastUseTimeBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public Builder clearApproximateLastUseTime() {
      if (approximateLastUseTimeBuilder_ == null) {
        approximateLastUseTime_ = null;
        onChanged();
      } else {
        approximateLastUseTime_ = null;
        approximateLastUseTimeBuilder_ = null;
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public com.google.protobuf.Timestamp.Builder getApproximateLastUseTimeBuilder() {

      onChanged();
      return getApproximateLastUseTimeFieldBuilder().getBuilder();
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    public com.google.protobuf.TimestampOrBuilder getApproximateLastUseTimeOrBuilder() {
      if (approximateLastUseTimeBuilder_ != null) {
        return approximateLastUseTimeBuilder_.getMessageOrBuilder();
      } else {
        return approximateLastUseTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : approximateLastUseTime_;
      }
    }
    /**
     *
     *
     * <pre>
     * Output only. The approximate timestamp when the session is last used. It is
     * typically earlier than the actual last use time.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp approximate_last_use_time = 4;</code>
     */
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        getApproximateLastUseTimeFieldBuilder() {
      if (approximateLastUseTimeBuilder_ == null) {
        approximateLastUseTimeBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp,
                com.google.protobuf.Timestamp.Builder,
                com.google.protobuf.TimestampOrBuilder>(
                getApproximateLastUseTime(), getParentForChildren(), isClean());
        approximateLastUseTime_ = null;
      }
      return approximateLastUseTimeBuilder_;
    }

    @java.lang.Override
    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.setUnknownFields(unknownFields);
    }

    @java.lang.Override
    public final Builder mergeUnknownFields(
        final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.mergeUnknownFields(unknownFields);
    }

    // @@protoc_insertion_point(builder_scope:google.spanner.v1.Session)
  }

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

  static {
    DEFAULT_INSTANCE = new com.google.spanner.v1.Session();
  }

  public static com.google.spanner.v1.Session getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<Session> PARSER =
      new com.google.protobuf.AbstractParser<Session>() {
        @java.lang.Override
        public Session parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return new Session(input, extensionRegistry);
        }
      };

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

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

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