hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/handler/MCollectorOutputHandler.h

/*
 * 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.
 */

#ifndef MCOLLECTOROUTPUTHANDLER_H_
#define MCOLLECTOROUTPUTHANDLER_H_

#include "BatchHandler.h"
#include "lib/SpillOutputService.h"
#include "AbstractMapHandler.h"

namespace NativeTask {
class MapOutputCollector;

class MCollectorOutputHandler : public AbstractMapHandler {
private:

  FixSizeContainer _kvContainer;

  MapOutputCollector * _collector;
  // state info for large KV pairs
  char * _dest;

  Endium _endium;

public:
  MCollectorOutputHandler();
  virtual ~MCollectorOutputHandler();

  virtual void configure(Config * config);
  virtual void finish();
  virtual void handleInput(ByteBuffer & byteBuffer);
private:
  KVBuffer * allocateKVBuffer(uint32_t partition, uint32_t kvlength);
};

}

#endif /* MCOLLECTOROUTPUTHANDLER_H_ */