content: /*
   * 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.spark.network.shuffle.protocol.mesos;
  
  import com.google.common.base.Objects;
  import io.netty.buffer.ByteBuf;
  
  import org.apache.spark.network.protocol.Encoders;
  import org.apache.spark.network.shuffle.protocol.BlockTransferMessage;
  
  // Needed by ScalaDoc. See SPARK-7726
  import static org.apache.spark.network.shuffle.protocol.BlockTransferMessage.Type;
  
  /**
   * A message sent from the driver to register with the MesosExternalShuffleService.
   */
  public class RegisterDriver extends BlockTransferMessage {
    private final String appId;
    private final long heartbeatTimeoutMs;
  
    public RegisterDriver(String appId, long heartbeatTimeoutMs) {
      this.appId = appId;
      this.heartbeatTimeoutMs = heartbeatTimeoutMs;
    }
  
    public String getAppId() { return appId; }
  
    public long getHeartbeatTimeoutMs() { return heartbeatTimeoutMs; }
  
    @Override
    protected Type type() { return Type.REGISTER_DRIVER; }
  
    @Override
    public int encodedLength() {
      return Encoders.Strings.encodedLength(appId) + Long.SIZE / Byte.SIZE;
    }
  
    @Override
    public void encode(ByteBuf buf) {
      Encoders.Strings.encode(buf, appId);
      buf.writeLong(heartbeatTimeoutMs);
    }
  
    @Override
    public int hashCode() {
      return Objects.hashCode(appId, heartbeatTimeoutMs);
    }
  
    @Override
    public boolean equals(Object o) {
      if (!(o instanceof RegisterDriver)) {
        return false;
      }
      return Objects.equal(appId, ((RegisterDriver) o).appId);
    }
  
    public static RegisterDriver decode(ByteBuf buf) {
      String appId = Encoders.Strings.decode(buf);
      long heartbeatTimeout = buf.readLong();
      return new RegisterDriver(appId, heartbeatTimeout);
    }
  }
  