text: // @@@LICENSE
  //
  //      Copyright (c) 2010-2013 LG Electronics, Inc.
  //
  // 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
  //
  // 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.
  //
  // LICENSE@@@
  
  #ifndef PREVIEWTEXTEXTRACTOROUTPUTSTREAM_H_
  #define PREVIEWTEXTEXTRACTOROUTPUTSTREAM_H_
  
  #include "stream/BaseOutputStream.h"
  #include <string>
  
  class PreviewTextExtractorOutputStream : public ChainedOutputStream
  {
  public:
  	PreviewTextExtractorOutputStream(const OutputStreamPtr& sink, size_t previewLength);
  	virtual ~PreviewTextExtractorOutputStream();
  
  	// Overrides BaseOutputStream
  	void Write(const char* src, size_t length);
  
  	const std::string& GetPreviewText();
  
  protected:
  	size_t			m_previewLength;
  	std::string		m_previewBuf;
  };
  
  #endif /* PREVIEWTEXTEXTRACTOROUTPUTSTREAM_H_ */
  