resampler.h

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#ifndef RECOGNIZER_PREDICTION_ISM_RESAMPLER_H
#define RECOGNIZER_PREDICTION_ISM_RESAMPLER_H

#include <ISM/common_type/RecognitionResult.hpp>

/* ----------------- Local includes ------------------  */
#include "asr_recognizer_prediction_ism/shared_recognition_results_manager.h"

namespace recognizer_prediction_ism
{
  //Realizes importance sampling on Recognition Result vector in shared memory according to their confidence.
  class Resampler
  {

  public:

      Resampler(bool equal_results_number,
                unsigned int importance_resampled_size,
                SharedRecognitionResultsManagerPtr shared_recognition_results_ptr);
    
    unsigned int getImportanceResampledSize() const;

    //This is the central method of this class.
    std::vector<ISM::RecognitionResult> drawSamples();
    
    bool recognitionResultsAvailable();

  private:

    const bool EQUAL_RESULTS_NUMBER_;
    const unsigned int IMPORTANCE_RESAMPLED_SIZE_;
    const SharedRecognitionResultsManagerPtr shared_recognition_results_manager_ptr_;

  };

  typedef boost::shared_ptr<Resampler> ResamplerPtr;

}


#endif // RECOGNIZER_PREDICTION_ISM_RESAMPLER_H