content: /*
   * Tencent is pleased to support the open source community by making Angel available.
   *
   * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
   *
   * Licensed 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
   *
   * https://opensource.org/licenses/Apache-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 com.tencent.angel.ps.server.data.request;
  
  import com.tencent.angel.common.ByteBufSerdeUtils;
  import com.tencent.angel.psagent.matrix.transport.router.KeyValuePart;
  import io.netty.buffer.ByteBuf;
  
  public class UpdateRequest extends RequestData implements IStreamRequest {
    /**
     * the update row splits
     */
    private KeyValuePart updatePart;
  
    /**
     * Update method
     */
    private UpdateOp op;
  
    /**
     * Input buffer, just used by stream mode
     */
    private ByteBuf in;
  
    /**
     * Create PutPartitionUpdateRequest.
     *
     * @param updatePart     update part
     */
    public UpdateRequest(KeyValuePart updatePart, UpdateOp op) {
      this.updatePart = updatePart;
      this.op = op;
    }
  
    public UpdateRequest() {
      this(null, UpdateOp.PLUS);
    }
  
    public UpdateOp getOp() {
      return op;
    }
  
    public void setOp(UpdateOp op) {
      this.op = op;
    }
  
    @Override public void serialize(ByteBuf buf) {
      buf.writeInt(op.getOpId());
      ByteBufSerdeUtils.serializeKeyValuePart(buf, updatePart);
    }
  
    @Override public void deserialize(ByteBuf buf) {
      int readerIndex = buf.readerIndex();
      op = UpdateOp.valueOf(buf.readInt());
      updatePart = ByteBufSerdeUtils.deserializeKeyValuePart(buf);
      requestSize = buf.readerIndex() - readerIndex;
    }
  
    @Override public int bufferLen() {
      return ByteBufSerdeUtils.INT_LENGTH + ByteBufSerdeUtils.serializedKeyValuePartLen(updatePart);
    }
  
    @Override public String toString() {
      return "PutPartitionUpdateRequest rowsSplit size=" + ((updatePart
        != null) ? updatePart.size() : 0) + ", toString()=" + super
        .toString() + "]";
    }
  
    @Override
    public void deserializeHeader(ByteBuf buf) {
      op = UpdateOp.valueOf(ByteBufSerdeUtils.deserializeInt(buf));
      updatePart = null;
      in = buf;
    }
  
    @Override
    public ByteBuf getInputBuffer() {
      return in;
    }
  
    public KeyValuePart getUpdatePart() {
      return updatePart;
    }
  
    public void setUpdatePart(KeyValuePart updatePart) {
      this.updatePart = updatePart;
    }
  }
  