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 io.netty.buffer.ByteBuf;
  
  import org.apache.celeborn.common.protocol.PbTransportableError;
  import org.apache.celeborn.common.util.ExceptionUtils;
  
  public class TransportableError extends RequestMessage {
    private long streamId;
    private byte[] errorMessage;
  
    public TransportableError(long streamId, Throwable throwable) {
      this.streamId = streamId;
      this.errorMessage =
          ExceptionUtils.stringifyException(throwable).getBytes(StandardCharsets.UTF_8);
    }
  
    public TransportableError(long streamId, byte[] errorMessage) {
      this.streamId = streamId;
      this.errorMessage = errorMessage;
    }
  
    @Override
    public int encodedLength() {
      return 8 + 4 + errorMessage.length;
    }
  
    @Override
    public void encode(ByteBuf buf) {
      buf.writeLong(streamId);
      buf.writeInt(errorMessage.length);
      buf.writeBytes(errorMessage);
    }
  
    @Override
    public Type type() {
      return Type.TRANSPORTABLE_ERROR;
    }
  
    public static TransportableError decode(ByteBuf buf) {
      long streamId = buf.readLong();
      int msgLen = buf.readInt();
      byte[] errorMsg = new byte[msgLen];
      buf.readBytes(errorMsg);
      return new TransportableError(streamId, errorMsg);
    }
  
    public long getStreamId() {
      return streamId;
    }
  
    public String getErrorMessage() {
      return new String(errorMessage, StandardCharsets.UTF_8);
    }
  
    public static TransportableError fromProto(PbTransportableError pb) {
      return new TransportableError(
          pb.getStreamId(), pb.getMessage().getBytes(StandardCharsets.UTF_8));
    }
  }
  