mosesdecoder/moses-cmd/IOWrapper.h

// $Id$

/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (c) 2006 University of Edinburgh
All rights reserved.

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are permitted provided that the following conditions are met:

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			may be used to endorse or promote products derived from this software
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***********************************************************************/

// example file on how to use moses library

#ifndef moses_cmd_IOWrapper_h
#define moses_cmd_IOWrapper_h

#include <cassert>
#include <fstream>
#include <ostream>
#include <vector>
#include "util/check.hh"

#include "moses/TypeDef.h"
#include "moses/Sentence.h"
#include "moses/FactorTypeSet.h"
#include "moses/FactorCollection.h"
#include "moses/Hypothesis.h"
#include "moses/OutputCollector.h"
#include "moses/TrellisPathList.h"
#include "moses/InputFileStream.h"
#include "moses/InputType.h"
#include "moses/WordLattice.h"
#include "LatticeMBR.h"

namespace Moses
{
class ScoreComponentCollection;
}

namespace MosesCmd
{

/** Helper class that holds misc variables to write data out to command line.
 */
class IOWrapper
{
protected:
  long m_translationId;

  const std::vector<Moses::FactorType>	&m_inputFactorOrder;
  const std::vector<Moses::FactorType>	&m_outputFactorOrder;
  const Moses::FactorMask							&m_inputFactorUsed;
  std::string										m_inputFilePath;
  Moses::InputFileStream				*m_inputFile;
  std::istream									*m_inputStream;
  std::ostream 									*m_nBestStream
  ,*m_outputWordGraphStream,*m_outputSearchGraphStream;
  std::ostream                  *m_detailedTranslationReportingStream;
  std::ofstream *m_alignmentOutputStream;
  bool													m_surpressSingleBestOutput;

  void Initialization(const std::vector<Moses::FactorType>	&inputFactorOrder
                      , const std::vector<Moses::FactorType>			&outputFactorOrder
                      , const Moses::FactorMask							&inputFactorUsed
                      , size_t												nBestSize
                      , const std::string							&nBestFilePath);


public:
  IOWrapper(const std::vector<Moses::FactorType>	&inputFactorOrder
            , const std::vector<Moses::FactorType>			&outputFactorOrder
            , const Moses::FactorMask							&inputFactorUsed
            , size_t												nBestSize
            , const std::string							&nBestFilePath);

  IOWrapper(const std::vector<Moses::FactorType>	&inputFactorOrder
            , const std::vector<Moses::FactorType>	&outputFactorOrder
            , const Moses::FactorMask							&inputFactorUsed
            , size_t												nBestSize
            , const std::string							&nBestFilePath
            , const std::string                                                     &infilePath);
  ~IOWrapper();

  Moses::InputType* GetInput(Moses::InputType *inputType);

  void OutputBestHypo(const Moses::Hypothesis *hypo, long translationId, bool reportSegmentation, bool reportAllFactors);
  void OutputLatticeMBRNBestList(const std::vector<LatticeMBRSolution>& solutions,long translationId);
  void Backtrack(const Moses::Hypothesis *hypo);

  void ResetTranslationId() {
    m_translationId = 0;
  }

  std::ofstream *GetAlignmentOutputStream() {
    return m_alignmentOutputStream;
  }

  std::ostream &GetOutputWordGraphStream() {
    return *m_outputWordGraphStream;
  }
  std::ostream &GetOutputSearchGraphStream() {
    return *m_outputSearchGraphStream;
  }

  std::ostream &GetDetailedTranslationReportingStream() {
    assert (m_detailedTranslationReportingStream);
    return *m_detailedTranslationReportingStream;
  }
};

IOWrapper *GetIOWrapper(const Moses::StaticData &staticData);
bool ReadInput(IOWrapper &ioWrapper, Moses::InputTypeEnum inputType, Moses::InputType*& source);
void OutputBestSurface(std::ostream &out, const Moses::Hypothesis *hypo, const std::vector<Moses::FactorType> &outputFactorOrder, bool reportSegmentation, bool reportAllFactors);
void OutputLatticeMBRNBest(std::ostream& out, const std::vector<LatticeMBRSolution>& solutions,long translationId);
void OutputBestHypo(const std::vector<Moses::Word>&  mbrBestHypo, long /*translationId*/,
                    bool reportSegmentation, bool reportAllFactors, std::ostream& out);
void OutputBestHypo(const Moses::TrellisPath &path, long /*translationId*/,bool reportSegmentation, bool reportAllFactors, std::ostream &out);
void OutputInput(std::ostream& os, const Moses::Hypothesis* hypo);
void OutputAlignment(Moses::OutputCollector* collector, size_t lineNo, const Moses::Hypothesis *hypo);
void OutputAlignment(Moses::OutputCollector* collector, size_t lineNo,  const Moses::TrellisPath &path);
void OutputAlignment(std::ostream &out, const Moses::Hypothesis *hypo);

void OutputNBest(std::ostream& out
                  , const Moses::TrellisPathList &nBestList
                  , const std::vector<Moses::FactorType>& outputFactorOrder
                  , long translationId
                  , bool reportSegmentation);
void OutputAllFeatureScores(const Moses::ScoreComponentCollection &features
                              , std::ostream &out);
void OutputFeatureScores( std::ostream& out
                          , const Moses::ScoreComponentCollection &features
                          , const Moses::FeatureFunction *ff
                          , std::string &lastName );

}

#endif