mosesdecoder/moses-cmd/src/IOWrapper.cpp

// $Id$

/***********************************************************************
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.
    * Redistributions in binary form must reproduce the above copyright notice,
			this list of conditions and the following disclaimer in the documentation
			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
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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***********************************************************************/

// example file on how to use moses library

#include <iostream>
#include <stack>
#include "TypeDef.h"
#include "Util.h"
#include "IOWrapper.h"
#include "Hypothesis.h"
#include "WordsRange.h"
#include "TrellisPathList.h"
#include "StaticData.h"
#include "DummyScoreProducers.h"
#include "InputFileStream.h"

using namespace std;
using namespace Moses;

IOWrapper::IOWrapper(
  const vector<FactorType>				&inputFactorOrder
  , const vector<FactorType>			&outputFactorOrder
  , const FactorMask							&inputFactorUsed
  , size_t												nBestSize
  , const string									&nBestFilePath)
  :m_inputFactorOrder(inputFactorOrder)
  ,m_outputFactorOrder(outputFactorOrder)
  ,m_inputFactorUsed(inputFactorUsed)
  ,m_inputFile(NULL)
  ,m_inputStream(&std::cin)
  ,m_nBestStream(NULL)
  ,m_outputWordGraphStream(NULL)
  ,m_outputSearchGraphStream(NULL)
  ,m_detailedTranslationReportingStream(NULL)
  ,m_alignmentOutputStream(NULL)
{
  Initialization(inputFactorOrder, outputFactorOrder
                 , inputFactorUsed
                 , nBestSize, nBestFilePath);
}

IOWrapper::IOWrapper(const std::vector<FactorType>	&inputFactorOrder
                     , const std::vector<FactorType>	&outputFactorOrder
                     , const FactorMask							&inputFactorUsed
                     , size_t												nBestSize
                     , const std::string							&nBestFilePath
                     , const std::string							&inputFilePath)
  :m_inputFactorOrder(inputFactorOrder)
  ,m_outputFactorOrder(outputFactorOrder)
  ,m_inputFactorUsed(inputFactorUsed)
  ,m_inputFilePath(inputFilePath)
  ,m_inputFile(new InputFileStream(inputFilePath))
  ,m_nBestStream(NULL)
  ,m_outputWordGraphStream(NULL)
  ,m_outputSearchGraphStream(NULL)
  ,m_detailedTranslationReportingStream(NULL)
  ,m_alignmentOutputStream(NULL)
{
  Initialization(inputFactorOrder, outputFactorOrder
                 , inputFactorUsed
                 , nBestSize, nBestFilePath);

  m_inputStream = m_inputFile;
}

IOWrapper::~IOWrapper()
{
  if (m_inputFile != NULL)
    delete m_inputFile;
  if (m_nBestStream != NULL && !m_surpressSingleBestOutput) {
    // outputting n-best to file, rather than stdout. need to close file and delete obj
    delete m_nBestStream;
  }
  if (m_outputWordGraphStream != NULL) {
    delete m_outputWordGraphStream;
  }
  if (m_outputSearchGraphStream != NULL) {
    delete m_outputSearchGraphStream;
  }
  delete m_detailedTranslationReportingStream;
  delete m_alignmentOutputStream;
}

void IOWrapper::Initialization(const std::vector<FactorType>	&/*inputFactorOrder*/
                               , const std::vector<FactorType>			&/*outputFactorOrder*/
                               , const FactorMask							&/*inputFactorUsed*/
                               , size_t												nBestSize
                               , const std::string							&nBestFilePath)
{
  const StaticData &staticData = StaticData::Instance();

  // n-best
  m_surpressSingleBestOutput = false;

  if (nBestSize > 0) {
    if (nBestFilePath == "-" || nBestFilePath == "/dev/stdout") {
      m_nBestStream = &std::cout;
      m_surpressSingleBestOutput = true;
    } else {
      std::ofstream *file = new std::ofstream;
      m_nBestStream = file;
      file->open(nBestFilePath.c_str());
    }
  }

  // wordgraph output
  if (staticData.GetOutputWordGraph()) {
    string fileName = staticData.GetParam("output-word-graph")[0];
    std::ofstream *file = new std::ofstream;
    m_outputWordGraphStream  = file;
    file->open(fileName.c_str());
  }


// search graph output
  if (staticData.GetOutputSearchGraph()) {
    string fileName;
    if (staticData.GetOutputSearchGraphExtended())
      fileName = staticData.GetParam("output-search-graph-extended")[0];
    else
      fileName = staticData.GetParam("output-search-graph")[0];
    std::ofstream *file = new std::ofstream;
    m_outputSearchGraphStream = file;
    file->open(fileName.c_str());
  }

  // detailed translation reporting
  if (staticData.IsDetailedTranslationReportingEnabled()) {
    const std::string &path = staticData.GetDetailedTranslationReportingFilePath();
    m_detailedTranslationReportingStream = new std::ofstream(path.c_str());
    assert(m_detailedTranslationReportingStream->good());
  }

  // sentence alignment output
  if (! staticData.GetAlignmentOutputFile().empty()) {
    m_alignmentOutputStream = new ofstream(staticData.GetAlignmentOutputFile().c_str());
    assert(m_alignmentOutputStream->good());
  }

}

InputType*IOWrapper::GetInput(InputType* inputType)
{
  if(inputType->Read(*m_inputStream, m_inputFactorOrder)) {
    if (long x = inputType->GetTranslationId()) {
      if (x>=m_translationId) m_translationId = x+1;
    } else inputType->SetTranslationId(m_translationId++);

    return inputType;
  } else {
    delete inputType;
    return NULL;
  }
}

/***
 * print surface factor only for the given phrase
 */
void OutputSurface(std::ostream &out, const Phrase &phrase, const std::vector<FactorType> &outputFactorOrder, bool reportAllFactors)
{
  assert(outputFactorOrder.size() > 0);
  if (reportAllFactors == true) {
    out << phrase;
  } else {
    size_t size = phrase.GetSize();
    for (size_t pos = 0 ; pos < size ; pos++) {
      const Factor *factor = phrase.GetFactor(pos, outputFactorOrder[0]);
      out << *factor;

      for (size_t i = 1 ; i < outputFactorOrder.size() ; i++) {
        const Factor *factor = phrase.GetFactor(pos, outputFactorOrder[i]);
        out << "|" << *factor;
      }
      out << " ";
    }
  }
}

void OutputAlignment(OutputCollector* collector, size_t lineNo , const vector<const Hypothesis *> &edges)
{
  ostringstream out;
  size_t targetOffset = 0;

  for (int currEdge = (int)edges.size() - 1 ; currEdge >= 0 ; currEdge--) {
    const Hypothesis &edge = *edges[currEdge];
    const TargetPhrase &tp = edge.GetCurrTargetPhrase();
    size_t sourceOffset = edge.GetCurrSourceWordsRange().GetStartPos();
    AlignmentInfo::const_iterator it;
    for (it = tp.GetAlignmentInfo().begin(); it != tp.GetAlignmentInfo().end(); ++it) {
      out << it->first + sourceOffset << "-" << it->second + targetOffset << " ";
    }
    targetOffset += tp.GetSize();
  }
  out << std::endl;
  collector->Write(lineNo,out.str());
}

void OutputAlignment(OutputCollector* collector, size_t lineNo , const Hypothesis *hypo)
{
  if (collector) {
    std::vector<const Hypothesis *> edges;
    const Hypothesis *currentHypo = hypo;
    while (currentHypo) {
      edges.push_back(currentHypo);
      currentHypo = currentHypo->GetPrevHypo();
    }

    OutputAlignment(collector,lineNo, edges);
  }
}

void OutputAlignment(OutputCollector* collector, size_t lineNo , const TrellisPath &path)
{
  if (collector) {
    OutputAlignment(collector,lineNo, path.GetEdges());
  }
}

void OutputSurface(std::ostream &out, const Hypothesis *hypo, const std::vector<FactorType> &outputFactorOrder
                   ,bool reportSegmentation, bool reportAllFactors)
{
  if ( hypo != NULL) {
    OutputSurface(out, hypo->GetPrevHypo(), outputFactorOrder, reportSegmentation, reportAllFactors);
    OutputSurface(out, hypo->GetCurrTargetPhrase(), outputFactorOrder, reportAllFactors);

    // trace option "-t"
    if (reportSegmentation == true
        && hypo->GetCurrTargetPhrase().GetSize() > 0) {
      out << "|" << hypo->GetCurrSourceWordsRange().GetStartPos()
          << "-" << hypo->GetCurrSourceWordsRange().GetEndPos() << "| ";
    }
  }
}

void OutputBestHypo(const Moses::TrellisPath &path, long /*translationId*/,bool reportSegmentation, bool reportAllFactors, std::ostream &out)
{
  const std::vector<const Hypothesis *> &edges = path.GetEdges();

  for (int currEdge = (int)edges.size() - 1 ; currEdge >= 0 ; currEdge--) {
    const Hypothesis &edge = *edges[currEdge];

    OutputSurface(out, edge.GetCurrTargetPhrase(), StaticData::Instance().GetOutputFactorOrder(), reportAllFactors);
    if (reportSegmentation == true
        && edge.GetCurrTargetPhrase().GetSize() > 0) {
      out << "|" << edge.GetCurrSourceWordsRange().GetStartPos()
          << "-" << edge.GetCurrSourceWordsRange().GetEndPos() << "| ";
    }
  }
  out << endl;
}

void IOWrapper::Backtrack(const Hypothesis *hypo)
{

  if (hypo->GetPrevHypo() != NULL) {
    VERBOSE(3,hypo->GetId() << " <= ");
    Backtrack(hypo->GetPrevHypo());
  }
}

void OutputBestHypo(const std::vector<Word>&  mbrBestHypo, long /*translationId*/, bool /*reportSegmentation*/, bool /*reportAllFactors*/, ostream& out)
{

  for (size_t i = 0 ; i < mbrBestHypo.size() ; i++) {
    const Factor *factor = mbrBestHypo[i].GetFactor(StaticData::Instance().GetOutputFactorOrder()[0]);
    if (i>0) out << " ";
    out << *factor;
  }
  out << endl;
}


void OutputInput(std::vector<const Phrase*>& map, const Hypothesis* hypo)
{
  if (hypo->GetPrevHypo()) {
    OutputInput(map, hypo->GetPrevHypo());
    map[hypo->GetCurrSourceWordsRange().GetStartPos()] = hypo->GetSourcePhrase();
  }
}

void OutputInput(std::ostream& os, const Hypothesis* hypo)
{
  size_t len = hypo->GetInput().GetSize();
  std::vector<const Phrase*> inp_phrases(len, 0);
  OutputInput(inp_phrases, hypo);
  for (size_t i=0; i<len; ++i)
    if (inp_phrases[i]) os << *inp_phrases[i];
}

void IOWrapper::OutputBestHypo(const Hypothesis *hypo, long /*translationId*/, bool reportSegmentation, bool reportAllFactors)
{
  if (hypo != NULL) {
    VERBOSE(1,"BEST TRANSLATION: " << *hypo << endl);
    VERBOSE(3,"Best path: ");
    Backtrack(hypo);
    VERBOSE(3,"0" << std::endl);
    if (!m_surpressSingleBestOutput) {
      if (StaticData::Instance().IsPathRecoveryEnabled()) {
        OutputInput(cout, hypo);
        cout << "||| ";
      }
      OutputSurface(cout, hypo, m_outputFactorOrder, reportSegmentation, reportAllFactors);
      cout << endl;
    }
  } else {
    VERBOSE(1, "NO BEST TRANSLATION" << endl);
    if (!m_surpressSingleBestOutput) {
      cout << endl;
    }
  }
}




void OutputNBest(std::ostream& out, const Moses::TrellisPathList &nBestList, const std::vector<Moses::FactorType>& outputFactorOrder, const TranslationSystem* system, long translationId)
{
  const StaticData &staticData = StaticData::Instance();
  bool labeledOutput = staticData.IsLabeledNBestList();
  bool reportAllFactors = staticData.GetReportAllFactorsNBest();
  bool includeAlignment = staticData.NBestIncludesAlignment();
  bool includeWordAlignment = staticData.PrintAlignmentInfoInNbest();

  TrellisPathList::const_iterator iter;
  for (iter = nBestList.begin() ; iter != nBestList.end() ; ++iter) {
    const TrellisPath &path = **iter;
    const std::vector<const Hypothesis *> &edges = path.GetEdges();

    // print the surface factor of the translation
    out << translationId << " ||| ";
    for (int currEdge = (int)edges.size() - 1 ; currEdge >= 0 ; currEdge--) {
      const Hypothesis &edge = *edges[currEdge];
      OutputSurface(out, edge.GetCurrTargetPhrase(), outputFactorOrder, reportAllFactors);
    }
    out << " |||";

    std::string lastName = "";
    const vector<const StatefulFeatureFunction*>& sff =
      system->GetStatefulFeatureFunctions();
    for( size_t i=0; i<sff.size(); i++ ) {
      if( labeledOutput && lastName != sff[i]->GetScoreProducerWeightShortName() ) {
        lastName = sff[i]->GetScoreProducerWeightShortName();
        out << " " << lastName << ":";
      }
      vector<float> scores = path.GetScoreBreakdown().GetScoresForProducer( sff[i] );
      for (size_t j = 0; j<scores.size(); ++j) {
        out << " " << scores[j];
      }
    }

    const vector<const StatelessFeatureFunction*>& slf =
      system->GetStatelessFeatureFunctions();
    for( size_t i=0; i<slf.size(); i++ ) {
      if( labeledOutput && lastName != slf[i]->GetScoreProducerWeightShortName() ) {
        lastName = slf[i]->GetScoreProducerWeightShortName();
        out << " " << lastName << ":";
      }
      vector<float> scores = path.GetScoreBreakdown().GetScoresForProducer( slf[i] );
      for (size_t j = 0; j<scores.size(); ++j) {
        out << " " << scores[j];
      }
    }

    // translation components
    if (StaticData::Instance().GetInputType()==SentenceInput) {
      // translation components	for text input
      vector<PhraseDictionaryFeature*> pds = system->GetPhraseDictionaries();
      if (pds.size() > 0) {
        if (labeledOutput)
          out << " tm:";
        vector<PhraseDictionaryFeature*>::iterator iter;
        for (iter = pds.begin(); iter != pds.end(); ++iter) {
          vector<float> scores = path.GetScoreBreakdown().GetScoresForProducer(*iter);
          for (size_t j = 0; j<scores.size(); ++j)
            out << " " << scores[j];
        }
      }
    } else {
      // translation components for Confusion Network input
      // first translation component has GetNumInputScores() scores from the input Confusion Network
      // at the beginning of the vector
      vector<PhraseDictionaryFeature*> pds = system->GetPhraseDictionaries();
      if (pds.size() > 0) {
        vector<PhraseDictionaryFeature*>::iterator iter;

        iter = pds.begin();
        vector<float> scores = path.GetScoreBreakdown().GetScoresForProducer(*iter);

        size_t pd_numinputscore = (*iter)->GetNumInputScores();

        if (pd_numinputscore) {

          if (labeledOutput)
            out << " I:";

          for (size_t j = 0; j < pd_numinputscore; ++j)
            out << " " << scores[j];
        }


        for (iter = pds.begin() ; iter != pds.end(); ++iter) {
          vector<float> scores = path.GetScoreBreakdown().GetScoresForProducer(*iter);

          size_t pd_numinputscore = (*iter)->GetNumInputScores();

          if (iter == pds.begin() && labeledOutput)
            out << " tm:";
          for (size_t j = pd_numinputscore; j < scores.size() ; ++j)
            out << " " << scores[j];
        }
      }
    }

    // generation
    const vector<GenerationDictionary*> gds = system->GetGenerationDictionaries();
    if (gds.size() > 0) {
      if (labeledOutput)
        out << " g: ";
      vector<GenerationDictionary*>::const_iterator iter;
      for (iter = gds.begin(); iter != gds.end(); ++iter) {
        vector<float> scores = path.GetScoreBreakdown().GetScoresForProducer(*iter);
        for (size_t j = 0; j<scores.size(); j++) {
          out << scores[j] << " ";
        }
      }
    }

    // total
    out << " ||| " << path.GetTotalScore();

    //phrase-to-phrase alignment
    if (includeAlignment) {
      out << " |||";
      for (int currEdge = (int)edges.size() - 2 ; currEdge >= 0 ; currEdge--) {
        const Hypothesis &edge = *edges[currEdge];
        const WordsRange &sourceRange = edge.GetCurrSourceWordsRange();
        WordsRange targetRange = path.GetTargetWordsRange(edge);
        out << " " << sourceRange.GetStartPos();
        if (sourceRange.GetStartPos() < sourceRange.GetEndPos()) {
          out << "-" << sourceRange.GetEndPos();
        }
        out<< "=" << targetRange.GetStartPos();
        if (targetRange.GetStartPos() < targetRange.GetEndPos()) {
          out<< "-" << targetRange.GetEndPos();
        }
      }
    }

    if (includeWordAlignment) {
      out << " |||";
      for (int currEdge = (int)edges.size() - 2 ; currEdge >= 0 ; currEdge--) {
        const Hypothesis &edge = *edges[currEdge];
        const WordsRange &sourceRange = edge.GetCurrSourceWordsRange();
        WordsRange targetRange = path.GetTargetWordsRange(edge);
        const int sourceOffset = sourceRange.GetStartPos();
        const int targetOffset = targetRange.GetStartPos();
        const AlignmentInfo AI = edge.GetCurrTargetPhrase().GetAlignmentInfo();
        AlignmentInfo::const_iterator iter;
        for (iter = AI.begin(); iter != AI.end(); ++iter) {
          out << " " << iter->first+sourceOffset << "-" << iter->second+targetOffset;
        }
      }
    }

    if (StaticData::Instance().IsPathRecoveryEnabled()) {
      out << "|||";
      OutputInput(out, edges[0]);
    }

    out << endl;
  }


  out <<std::flush;
}

void OutputLatticeMBRNBest(std::ostream& out, const vector<LatticeMBRSolution>& solutions,long translationId)
{
  for (vector<LatticeMBRSolution>::const_iterator si = solutions.begin(); si != solutions.end(); ++si) {
    out << translationId;
    out << " ||| ";
    const vector<Word> mbrHypo = si->GetWords();
    for (size_t i = 0 ; i < mbrHypo.size() ; i++) {
      const Factor *factor = mbrHypo[i].GetFactor(StaticData::Instance().GetOutputFactorOrder()[0]);
      if (i>0) out << " ";
      out << *factor;
    }
    out << " ||| ";
    out << "map: " << si->GetMapScore();
    out << " w: " << mbrHypo.size();
    const vector<float>& ngramScores = si->GetNgramScores();
    for (size_t i = 0; i < ngramScores.size(); ++i) {
      out << " " << ngramScores[i];
    }
    out << " ||| ";
    out << si->GetScore();

    out << endl;
  }
}


void IOWrapper::OutputLatticeMBRNBestList(const vector<LatticeMBRSolution>& solutions,long translationId)
{
  OutputLatticeMBRNBest(*m_nBestStream, solutions,translationId);
}

bool ReadInput(IOWrapper &ioWrapper, InputTypeEnum inputType, InputType*& source)
{
  delete source;
  switch(inputType) {
  case SentenceInput:
    source = ioWrapper.GetInput(new Sentence(Input));
    break;
  case ConfusionNetworkInput:
    source = ioWrapper.GetInput(new ConfusionNet);
    break;
  case WordLatticeInput:
    source = ioWrapper.GetInput(new WordLattice);
    break;
  default:
    TRACE_ERR("Unknown input type: " << inputType << "\n");
  }
  return (source ? true : false);
}



IOWrapper *GetIODevice(const StaticData &staticData)
{
  IOWrapper *ioWrapper;
  const std::vector<FactorType> &inputFactorOrder = staticData.GetInputFactorOrder()
      ,&outputFactorOrder = staticData.GetOutputFactorOrder();
  FactorMask inputFactorUsed(inputFactorOrder);

  // io
  if (staticData.GetParam("input-file").size() == 1) {
    VERBOSE(2,"IO from File" << endl);
    string filePath = staticData.GetParam("input-file")[0];

    ioWrapper = new IOWrapper(inputFactorOrder, outputFactorOrder, inputFactorUsed
                              , staticData.GetNBestSize()
                              , staticData.GetNBestFilePath()
                              , filePath);
  } else {
    VERBOSE(1,"IO from STDOUT/STDIN" << endl);
    ioWrapper = new IOWrapper(inputFactorOrder, outputFactorOrder, inputFactorUsed
                              , staticData.GetNBestSize()
                              , staticData.GetNBestFilePath());
  }
  ioWrapper->ResetTranslationId();

  IFVERBOSE(1)
  PrintUserTime("Created input-output object");

  return ioWrapper;
}