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.nio.charset.StandardCharsets;
  import java.util.Arrays;
  import java.util.Objects;
  
  import io.netty.buffer.ByteBuf;
  
  /**
   * Request to read a set of blocks. Returns {@link StreamHandle}. Use PbOpenStream instead of this
   * one.
   */
  @Deprecated
  public final class OpenStream extends RequestMessage {
    public byte[] shuffleKey;
    public byte[] fileName;
    public int startMapIndex;
    public int endMapIndex;
  
    public OpenStream(String shuffleKey, String fileName, int startMapIndex, int endMapIndex) {
      this(
          shuffleKey.getBytes(StandardCharsets.UTF_8),
          fileName.getBytes(StandardCharsets.UTF_8),
          startMapIndex,
          endMapIndex);
    }
  
    public OpenStream(byte[] shuffleKey, byte[] fileName, int startMapIndex, int endMapIndex) {
      this.shuffleKey = shuffleKey;
      this.fileName = fileName;
      this.startMapIndex = startMapIndex;
      this.endMapIndex = endMapIndex;
    }
  
    @Override
    public Type type() {
      return Type.OPEN_STREAM;
    }
  
    @Override
    public int encodedLength() {
      return 4 + shuffleKey.length + 4 + fileName.length + 4 + 4;
    }
  
    @Override
    public void encode(ByteBuf buf) {
      buf.writeInt(shuffleKey.length);
      buf.writeBytes(shuffleKey);
      buf.writeInt(fileName.length);
      buf.writeBytes(fileName);
      buf.writeInt(startMapIndex);
      buf.writeInt(endMapIndex);
    }
  
    public static OpenStream decode(ByteBuf buf) {
      int shuffleKeySize = buf.readInt();
      byte[] shuffleKey = new byte[shuffleKeySize];
      buf.readBytes(shuffleKey);
      int fileNameSize = buf.readInt();
      byte[] fileName = new byte[fileNameSize];
      buf.readBytes(fileName);
      return new OpenStream(shuffleKey, fileName, buf.readInt(), buf.readInt());
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(
          Arrays.hashCode(shuffleKey), Arrays.hashCode(fileName), startMapIndex, endMapIndex);
    }
  
    @Override
    public boolean equals(Object other) {
      if (other instanceof OpenStream) {
        OpenStream o = (OpenStream) other;
        return startMapIndex == o.startMapIndex
            && endMapIndex == o.endMapIndex
            && Arrays.equals(shuffleKey, o.shuffleKey)
            && Arrays.equals(fileName, o.fileName);
      }
      return false;
    }
  
    @Override
    public String toString() {
      return "OpenStream[shuffleKey="
          + new String(shuffleKey, StandardCharsets.UTF_8)
          + ",fileName="
          + new String(fileName, StandardCharsets.UTF_8)
          + ",startMapIndex="
          + startMapIndex
          + ",endMapIndex="
          + endMapIndex
          + "]";
    }
  }
  