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 static org.apache.celeborn.common.protocol.MessageType.*;
  
  import java.io.Serializable;
  import java.nio.ByteBuffer;
  
  import com.google.protobuf.GeneratedMessageV3;
  import com.google.protobuf.InvalidProtocolBufferException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.celeborn.common.exception.CelebornIOException;
  import org.apache.celeborn.common.protocol.*;
  
  public class TransportMessage implements Serializable {
    private static final long serialVersionUID = -3259000920699629773L;
    private static Logger logger = LoggerFactory.getLogger(TransportMessage.class);
    @Deprecated private final transient MessageType type;
    private final int messageTypeValue;
    private final byte[] payload;
    private final SerdeVersion serdeVersion;
  
    public TransportMessage(MessageType type, byte[] payload) {
      this(type, payload, SerdeVersion.V1);
    }
  
    public TransportMessage(MessageType type, byte[] payload, SerdeVersion serdeVersion) {
      this.type = type;
      this.messageTypeValue = type.getNumber();
      this.payload = payload;
      this.serdeVersion = serdeVersion;
    }
  
    public MessageType getType() {
      return type;
    }
  
    public int getMessageTypeValue() {
      return messageTypeValue;
    }
  
    public byte[] getPayload() {
      return payload;
    }
  
    public SerdeVersion getSerdeVersion() {
      return serdeVersion;
    }
  
    public <T extends GeneratedMessageV3> T getParsedPayload() throws InvalidProtocolBufferException {
      switch (messageTypeValue) {
        case OPEN_STREAM_VALUE:
          return (T) PbOpenStream.parseFrom(payload);
        case STREAM_HANDLER_VALUE:
          return (T) PbStreamHandler.parseFrom(payload);
        case PUSH_DATA_HAND_SHAKE_VALUE:
          return (T) PbPushDataHandShake.parseFrom(payload);
        case REGION_START_VALUE:
          return (T) PbRegionStart.parseFrom(payload);
        case REGION_FINISH_VALUE:
          return (T) PbRegionFinish.parseFrom(payload);
        case BACKLOG_ANNOUNCEMENT_VALUE:
          return (T) PbBacklogAnnouncement.parseFrom(payload);
        case BUFFER_STREAM_END_VALUE:
          return (T) PbBufferStreamEnd.parseFrom(payload);
        case READ_ADD_CREDIT_VALUE:
          return (T) PbReadAddCredit.parseFrom(payload);
        case STREAM_CHUNK_SLICE_VALUE:
          return (T) PbStreamChunkSlice.parseFrom(payload);
        case CHUNK_FETCH_REQUEST_VALUE:
          return (T) PbChunkFetchRequest.parseFrom(payload);
        case TRANSPORTABLE_ERROR_VALUE:
          return (T) PbTransportableError.parseFrom(payload);
        case GET_SHUFFLE_ID_VALUE:
          return (T) PbGetShuffleId.parseFrom(payload);
        case GET_SHUFFLE_ID_RESPONSE_VALUE:
          return (T) PbGetShuffleIdResponse.parseFrom(payload);
        case REPORT_SHUFFLE_FETCH_FAILURE_VALUE:
          return (T) PbReportShuffleFetchFailure.parseFrom(payload);
        case REPORT_SHUFFLE_FETCH_FAILURE_RESPONSE_VALUE:
          return (T) PbReportShuffleFetchFailureResponse.parseFrom(payload);
        case REPORT_BARRIER_STAGE_ATTEMPT_FAILURE_VALUE:
          return (T) PbReportBarrierStageAttemptFailure.parseFrom(payload);
        case REPORT_BARRIER_STAGE_ATTEMPT_FAILURE_RESPONSE_VALUE:
          return (T) PbReportBarrierStageAttemptFailureResponse.parseFrom(payload);
        case SASL_REQUEST_VALUE:
          return (T) PbSaslRequest.parseFrom(payload);
        case AUTHENTICATION_INITIATION_REQUEST_VALUE:
          return (T) PbAuthenticationInitiationRequest.parseFrom(payload);
        case AUTHENTICATION_INITIATION_RESPONSE_VALUE:
          return (T) PbAuthenticationInitiationResponse.parseFrom(payload);
        case REGISTER_APPLICATION_REQUEST_VALUE:
          return (T) PbRegisterApplicationRequest.parseFrom(payload);
        case REGISTER_APPLICATION_RESPONSE_VALUE:
          return (T) PbRegisterApplicationResponse.parseFrom(payload);
        case APPLICATION_META_VALUE:
          return (T) PbApplicationMeta.parseFrom(payload);
        case APPLICATION_META_REQUEST_VALUE:
          return (T) PbApplicationMetaRequest.parseFrom(payload);
        case BATCH_OPEN_STREAM_VALUE:
          return (T) PbOpenStreamList.parseFrom(payload);
        case BATCH_OPEN_STREAM_RESPONSE_VALUE:
          return (T) PbOpenStreamListResponse.parseFrom(payload);
        case SEGMENT_START_VALUE:
          return (T) PbSegmentStart.parseFrom(payload);
        case NOTIFY_REQUIRED_SEGMENT_VALUE:
          return (T) PbNotifyRequiredSegment.parseFrom(payload);
        case PUSH_MERGED_DATA_SPLIT_PARTITION_INFO_VALUE:
          return (T) PbPushMergedDataSplitPartitionInfo.parseFrom(payload);
        default:
          logger.error("Unexpected type {}", type);
      }
      return null;
    }
  
    public ByteBuffer toByteBuffer() {
      int payloadLength = payload != null ? payload.length : 0;
      int totalBufferSize = payloadLength + 4 + 4;
      ByteBuffer buffer = ByteBuffer.allocate(totalBufferSize);
      buffer.putInt(messageTypeValue);
      buffer.putInt(payloadLength);
      if (payload != null) {
        buffer.put(payload);
      }
      buffer.flip();
      return buffer;
    }
  
    public static TransportMessage fromByteBuffer(ByteBuffer buffer) throws CelebornIOException {
      return fromByteBuffer(buffer, SerdeVersion.V1);
    }
  
    public static TransportMessage fromByteBuffer(ByteBuffer buffer, SerdeVersion serdeVersion)
        throws CelebornIOException {
      int messageTypeValue = buffer.getInt();
      if (MessageType.forNumber(messageTypeValue) == null) {
        throw new CelebornIOException("Decode failed, fallback to legacy messages.");
      }
      int payloadLen = buffer.getInt();
      byte[] payload = new byte[payloadLen];
      buffer.get(payload);
      MessageType msgType = MessageType.forNumber(messageTypeValue);
      return new TransportMessage(msgType, payload, serdeVersion);
    }
  }
  