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;
  
  /**
   * Message indicating an error when transferring a stream.
   */
  public final class StreamFailure extends AbstractMessage implements ResponseMessage {
    public final String streamId;
    public final String error;
  
    public StreamFailure(String streamId, String error) {
      this.streamId = streamId;
      this.error = error;
    }
  
    @Override
    public Type type() { return Type.StreamFailure; }
  
    @Override
    public int encodedLength() {
      return Encoders.Strings.encodedLength(streamId) + Encoders.Strings.encodedLength(error);
    }
  
    @Override
    public void encode(ByteBuf buf) {
      Encoders.Strings.encode(buf, streamId);
      Encoders.Strings.encode(buf, error);
    }
  
    public static StreamFailure decode(ByteBuf buf) {
      String streamId = Encoders.Strings.decode(buf);
      String error = Encoders.Strings.decode(buf);
      return new StreamFailure(streamId, error);
    }
  
    @Override
    public int hashCode() {
      return Objects.hashCode(streamId, error);
    }
  
    @Override
    public boolean equals(Object other) {
      if (other instanceof StreamFailure) {
        StreamFailure o = (StreamFailure) other;
        return streamId.equals(o.streamId) && error.equals(o.error);
      }
      return false;
    }
  
    @Override
    public String toString() {
      return Objects.toStringHelper(this)
        .add("streamId", streamId)
        .add("error", error)
        .toString();
    }
  
  }
  