/**
 * Copyright 2015 Google Inc.
 *
 * 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
 *
 * http://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.
 */

package com.example.endpoints.message;

import com.google.common.collect.ImmutableMap;

import java.util.Map;

/** Translates between v2 external and internal representations of a message. */
public class MessageV2Translator implements MessageTranslator {
  private static final String MESSAGE_KEY = "msg";

  public Message fromExternalToInternal(Map<String, String> v2Message) {
    return new Message(v2Message.get(MESSAGE_KEY));
  }

  public Map<String, String> fromInternalToExternal(Message internalMessage) {
    return ImmutableMap.of(MESSAGE_KEY, internalMessage.getMessage());
  }
}
