text: /**
   * 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.
   */
  /*
   * \class BatchMessageContainer
   *
   * \brief This class is a container for holding individual messages being published until they are batched and
   * sent to broker.
   *
   * \note This class is not thread safe.
   */
  
  #ifndef LIB_BATCHMESSAGECONTAINER_H_
  #define LIB_BATCHMESSAGECONTAINER_H_
  
  #include "BatchMessageContainerBase.h"
  #include "MessageAndCallbackBatch.h"
  
  namespace pulsar {
  
  class BatchMessageContainer : public BatchMessageContainerBase {
     public:
      BatchMessageContainer(const ProducerImpl& producer);
  
      ~BatchMessageContainer();
  
      size_t getNumBatches() const override { return 1; }
  
      bool isFirstMessageToAdd(const Message& msg) const override { return batch_.empty(); }
  
      bool add(const Message& msg, const SendCallback& callback) override;
  
      void clear() override;
  
      Result createOpSendMsg(OpSendMsg& opSendMsg, const FlushCallback& flushCallback) const override;
  
      std::vector<Result> createOpSendMsgs(std::vector<OpSendMsg>& opSendMsgs,
                                           const FlushCallback& flushCallback) const override;
  
      void serialize(std::ostream& os) const override;
  
     private:
      MessageAndCallbackBatch batch_;
      size_t numberOfBatchesSent_ = 0;
      double averageBatchSize_ = 0;
  };
  
  }  // namespace pulsar
  #endif /* LIB_BATCHMESSAGECONTAINER_H_ */
  