runtime/common/src/main/java/org/apache/nemo/runtime/common/message/ncs/ControlMessageCodec.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.nemo.runtime.common.message.ncs;

import com.google.protobuf.InvalidProtocolBufferException;
import org.apache.nemo.runtime.common.comm.ControlMessage;
import org.apache.reef.io.serialization.Codec;

/**
 * Codec for ControlMessage.
 */
final class ControlMessageCodec implements Codec<ControlMessage.Message>,
  org.apache.reef.wake.remote.Codec<ControlMessage.Message> {

  ControlMessageCodec() {
  }

  @Override
  public byte[] encode(final ControlMessage.Message obj) {
    return obj.toByteArray();
  }

  @Override
  public ControlMessage.Message decode(final byte[] buf) {
    try {
      return ControlMessage.Message.parseFrom(buf);
    } catch (final InvalidProtocolBufferException e) {
      throw new RuntimeException(e);
    }
  }
}