com.microsoft.reef.io.network.impl.NSMessage Maven / Gradle / Ivy

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/**
 * Copyright (C) 2013 Microsoft Corporation
 *
 * 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.microsoft.reef.io.network.impl;

import com.microsoft.reef.io.network.Message;
import com.microsoft.wake.Identifier;

import java.util.ArrayList;
import java.util.List;

/**
 * Network service message that implements the Message interface
 *
 * @param  type
 */
public class NSMessage implements Message {
  private final Identifier srcId;
  private final Identifier destId;
  private final List data;

  /**
   * Constructs a network service message
   *
   * @param srcId  a source identifier
   * @param destId a destination identifier
   * @param data   data of type T
   */
  public NSMessage(final Identifier srcId, final Identifier destId, final T data) {
    this.srcId = srcId;
    this.destId = destId;
    this.data = new ArrayList(1);
    this.data.add(data);
  }

  /**
   * Constructs a network service message
   *
   * @param srcId  a source identifier
   * @param destId a destination identifier
   * @param data   a list of data of type T
   */
  public NSMessage(final Identifier srcId, final Identifier destId, final List data) {
    this.srcId = srcId;
    this.destId = destId;
    this.data = data;
  }

  /**
   * Gets a source identifier
   *
   * @return an identifier
   */
  public Identifier getSrcId() {
    return srcId;
  }

  /**
   * Gets a destination identifier
   *
   * @return an identifier
   */
  public Identifier getDestId() {
    return destId;
  }

  /**
   * Gets data
   *
   * @return data
   */
  public List getData() {
    return data;
  }
}