mosesdecoder/moses/IOWrapper.h

// $Id$

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

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
			this list of conditions and the following disclaimer.
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			and/or other materials provided with the distribution.
    * Neither the name of the University of Edinburgh nor the names of its contributors
			may be used to endorse or promote products derived from this software
			without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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***********************************************************************/

// example file on how to use moses library

#pragma once

#include <cassert>
#include <fstream>
#include <ostream>
#include <vector>

#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 "moses/LatticeMBR.h"
#include "moses/ChartKBestExtractor.h"
#include "moses/Syntax/KBestExtractor.h"

#include "search/applied.hh"

namespace Moses
{
class ScoreComponentCollection;
class Hypothesis;
class ChartHypothesis;
class Factor;

namespace Syntax
{
struct SHyperedge;
}

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

  const std::vector<Moses::FactorType>	*m_inputFactorOrder;
  const std::vector<Moses::FactorType>	*m_outputFactorOrder;
  Moses::FactorMask	m_inputFactorUsed;
  std::string m_inputFilePath;
  Moses::InputFileStream *m_inputFile;
  std::istream *m_inputStream;
  std::ostream *m_nBestStream;
  std::ostream *m_outputWordGraphStream;
  std::ostream *m_outputSearchGraphStream;
  std::ostream *m_detailedTranslationReportingStream;
  std::ostream *m_unknownsStream;
  std::ostream *m_detailedTreeFragmentsTranslationReportingStream;
  std::ofstream *m_alignmentInfoStream;
  std::ofstream *m_latticeSamplesStream;

  Moses::OutputCollector *m_singleBestOutputCollector;
  Moses::OutputCollector *m_nBestOutputCollector;
  Moses::OutputCollector *m_unknownsCollector;
  Moses::OutputCollector *m_alignmentInfoCollector;
  Moses::OutputCollector *m_searchGraphOutputCollector;
  Moses::OutputCollector *m_detailedTranslationCollector;
  Moses::OutputCollector *m_wordGraphCollector;
  Moses::OutputCollector *m_latticeSamplesCollector;
  Moses::OutputCollector *m_detailTreeFragmentsOutputCollector;

  bool m_surpressSingleBestOutput;

  // CHART
  typedef std::vector<std::pair<Moses::Word, Moses::WordsRange> > ApplicationContext;

  void OutputTranslationOptions(std::ostream &out, ApplicationContext &applicationContext, const Moses::ChartHypothesis *hypo, const Moses::Sentence &sentence, long translationId);
  void OutputTranslationOptions(std::ostream &out, ApplicationContext &applicationContext, const search::Applied *applied, const Moses::Sentence &sentence, long translationId);
  void OutputTranslationOption(std::ostream &out, ApplicationContext &applicationContext, const Moses::ChartHypothesis *hypo, const Moses::Sentence &sentence, long translationId);
  void OutputTranslationOption(std::ostream &out, ApplicationContext &applicationContext, const search::Applied *applied, const Moses::Sentence &sentence, long translationId);

  void ReconstructApplicationContext(const Moses::ChartHypothesis &hypo,
                                     const Moses::Sentence &sentence,
                                     ApplicationContext &context);
  void ReconstructApplicationContext(const search::Applied *applied,
                                     const Moses::Sentence &sentence,
                                     ApplicationContext &context);
  void WriteApplicationContext(std::ostream &out,
                               const ApplicationContext &context);

  void OutputSurface(std::ostream &out, const Phrase &phrase, const std::vector<FactorType> &outputFactorOrder, bool reportAllFactors);
  void OutputSurface(std::ostream &out, const Hypothesis &edge, const std::vector<FactorType> &outputFactorOrder,
                     char reportSegmentation, bool reportAllFactors);

public:
  IOWrapper();
  ~IOWrapper();

  Moses::InputType* GetInput(Moses::InputType *inputType);
  bool ReadInput(Moses::InputTypeEnum inputType, Moses::InputType*& source);

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

  Moses::OutputCollector *GetSingleBestOutputCollector() {
    return m_singleBestOutputCollector;
  }

  Moses::OutputCollector *GetNBestOutputCollector() {
    return m_nBestOutputCollector;
  }

  Moses::OutputCollector *GetUnknownsCollector() {
    return m_unknownsCollector;
  }

  Moses::OutputCollector *GetAlignmentInfoCollector() {
    return m_alignmentInfoCollector;
  }

  Moses::OutputCollector *GetSearchGraphOutputCollector() {
    return m_searchGraphOutputCollector;
  }

  Moses::OutputCollector *GetDetailedTranslationCollector() {
    return m_detailedTranslationCollector;
  }

  Moses::OutputCollector *GetWordGraphCollector() {
    return m_wordGraphCollector;
  }

  Moses::OutputCollector *GetLatticeSamplesCollector() {
    return m_latticeSamplesCollector;
  }

  Moses::OutputCollector *GetDetailTreeFragmentsOutputCollector() {
    return m_detailTreeFragmentsOutputCollector;
  }


  // CHART

  // phrase-based
  void OutputBestSurface(std::ostream &out, const Moses::Hypothesis *hypo, const std::vector<Moses::FactorType> &outputFactorOrder, char 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*/,
                      char reportSegmentation, bool reportAllFactors, std::ostream& out);
  void OutputBestHypo(const Moses::TrellisPath &path, long /*translationId*/,char reportSegmentation, bool reportAllFactors, std::ostream &out);

  void OutputPassthroughInformation(std::string& passthrough, const Moses::Hypothesis* hypo);
  void OutputPassthroughInformation(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(OutputCollector* collector, size_t lineNo , const std::vector<const Hypothesis *> &edges);

  static void OutputAllFeatureScores(const Moses::ScoreComponentCollection &features
                              , std::ostream &out);
  static void OutputFeatureScores( std::ostream& out
                            , const Moses::ScoreComponentCollection &features
                            , const Moses::FeatureFunction *ff
                            , std::string &lastName );

  // creates a map of TARGET positions which should be replaced by word using placeholder
  std::map<size_t, const Moses::Factor*> GetPlaceholders(const Moses::Hypothesis &hypo, Moses::FactorType placeholderFactor);

  // post editing
  std::ifstream *spe_src, *spe_trg, *spe_aln;

};



}