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.protocol;
  
  import com.google.common.base.Objects;
  import io.netty.buffer.ByteBuf;
  
  /**
   * Request to fetch a sequence of a single chunk of a stream. This will correspond to a single
   * {@link org.apache.spark.network.protocol.ResponseMessage} (either success or failure).
   */
  public final class ChunkFetchRequest extends AbstractMessage implements RequestMessage {
    public final StreamChunkId streamChunkId;
  
    public ChunkFetchRequest(StreamChunkId streamChunkId) {
      this.streamChunkId = streamChunkId;
    }
  
    @Override
    public Type type() { return Type.ChunkFetchRequest; }
  
    @Override
    public int encodedLength() {
      return streamChunkId.encodedLength();
    }
  
    @Override
    public void encode(ByteBuf buf) {
      streamChunkId.encode(buf);
    }
  
    public static ChunkFetchRequest decode(ByteBuf buf) {
      return new ChunkFetchRequest(StreamChunkId.decode(buf));
    }
  
    @Override
    public int hashCode() {
      return streamChunkId.hashCode();
    }
  
    @Override
    public boolean equals(Object other) {
      if (other instanceof ChunkFetchRequest) {
        ChunkFetchRequest o = (ChunkFetchRequest) other;
        return streamChunkId.equals(o.streamChunkId);
      }
      return false;
    }
  
    @Override
    public String toString() {
      return Objects.toStringHelper(this)
        .add("streamChunkId", streamChunkId)
        .toString();
    }
  }
  