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.celeborn.common.network.protocol;
  
  import java.util.Objects;
  
  import io.netty.buffer.ByteBuf;
  
  /**
   * Comparing {@link ReadData}, this class has an additional field of subpartitionId. This class is
   * added to keep the backward compatibility.
   */
  public class SubPartitionReadData extends ReadData {
  
    private int subPartitionId;
  
    public SubPartitionReadData(long streamId, int subPartitionId, ByteBuf buf) {
      super(streamId, buf);
      this.subPartitionId = subPartitionId;
    }
  
    @Override
    public int encodedLength() {
      return super.encodedLength() + 4;
    }
  
    @Override
    public void encode(ByteBuf buf) {
      super.encode(buf);
      buf.writeInt(subPartitionId);
    }
  
    public int getSubPartitionId() {
      return subPartitionId;
    }
  
    @Override
    public Type type() {
      return Type.SUBPARTITION_READ_DATA;
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;
      SubPartitionReadData readData = (SubPartitionReadData) o;
      return streamId == readData.getStreamId()
          && subPartitionId == readData.getSubPartitionId()
          && super.equals(o);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(streamId, subPartitionId, super.hashCode());
    }
  
    @Override
    public String toString() {
      return "SubpartitionReadData{"
          + "streamId="
          + streamId
          + ", subPartitionId="
          + subPartitionId
          + '}';
    }
  }
  