path: root/moses/IOWrapper.cpp

// $Id$

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

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 * Redistributions of source code must retain the above copyright notice,
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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

#include <iostream>
#include <stack>
#include <boost/algorithm/string.hpp>

#include "moses/Syntax/KBestExtractor.h"
#include "moses/Syntax/PVertex.h"
#include "moses/Syntax/SHyperedge.h"
#include "moses/Syntax/S2T/DerivationWriter.h"
#include "moses/Syntax/SVertex.h"

#include "moses/TypeDef.h"
#include "moses/Util.h"
#include "moses/Hypothesis.h"
#include "moses/WordsRange.h"
#include "moses/TrellisPathList.h"
#include "moses/StaticData.h"
#include "moses/FeatureVector.h"
#include "moses/InputFileStream.h"
#include "moses/FF/StatefulFeatureFunction.h"
#include "moses/FF/StatelessFeatureFunction.h"
#include "moses/TreeInput.h"
#include "moses/ForestInput.h"
#include "moses/ConfusionNet.h"
#include "moses/WordLattice.h"
#include "moses/Incremental.h"
#include "moses/ChartManager.h"


#include "util/exception.hh"

#include "IOWrapper.h"

using namespace std;

namespace Moses
{

IOWrapper::IOWrapper()
  :m_nBestStream(NULL)

  ,m_outputWordGraphStream(NULL)
  ,m_outputSearchGraphStream(NULL)
  ,m_detailedTranslationReportingStream(NULL)
  ,m_unknownsStream(NULL)
  ,m_alignmentInfoStream(NULL)
  ,m_latticeSamplesStream(NULL)

  ,m_surpressSingleBestOutput(false)

  ,spe_src(NULL)
  ,spe_trg(NULL)
  ,spe_aln(NULL)
{
  const StaticData &staticData = StaticData::Instance();

  m_inputType = staticData.GetInputType(); 
  m_currentLine = staticData.GetStartTranslationId();

  m_inputFactorOrder = &staticData.GetInputFactorOrder();

  size_t nBestSize = staticData.GetNBestSize();
  string nBestFilePath = staticData.GetNBestFilePath();

  staticData.GetParameter().SetParameter<string>(m_inputFilePath, "input-file", "");
  if (m_inputFilePath.empty()) {
    m_inputFile = NULL;
    m_inputStream = &cin;
  } else {
    VERBOSE(2,"IO from File" << endl);
    m_inputFile = new InputFileStream(m_inputFilePath);
    m_inputStream = m_inputFile;
  }

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

      m_nBestOutputCollector.reset(new Moses::OutputCollector(file));
      //m_nBestOutputCollector->HoldOutputStream();
    }
  }

  // search graph output
  if (staticData.GetOutputSearchGraph()) {
    string fileName;
    if (staticData.GetOutputSearchGraphExtended()) {
      staticData.GetParameter().SetParameter<string>(fileName, "output-search-graph-extended", "");
    } else {
      staticData.GetParameter().SetParameter<string>(fileName, "output-search-graph", "");
    }
    std::ofstream *file = new std::ofstream;
    m_outputSearchGraphStream = file;
    file->open(fileName.c_str());
  }

  if (!staticData.GetOutputUnknownsFile().empty()) {
    m_unknownsStream = new std::ofstream(staticData.GetOutputUnknownsFile().c_str());
    m_unknownsCollector.reset(new Moses::OutputCollector(m_unknownsStream));
    UTIL_THROW_IF2(!m_unknownsStream->good(),
                   "File for unknowns words could not be opened: " <<
                   staticData.GetOutputUnknownsFile());
  }

  if (!staticData.GetAlignmentOutputFile().empty()) {
    m_alignmentInfoStream = new std::ofstream(staticData.GetAlignmentOutputFile().c_str());
    m_alignmentInfoCollector.reset(new Moses::OutputCollector(m_alignmentInfoStream));
    UTIL_THROW_IF2(!m_alignmentInfoStream->good(),
                   "File for alignment output could not be opened: " << staticData.GetAlignmentOutputFile());
  }

  if (staticData.GetOutputSearchGraph()) {
    string fileName;
    staticData.GetParameter().SetParameter<string>(fileName, "output-search-graph", "");

    std::ofstream *file = new std::ofstream;
    m_outputSearchGraphStream = file;
    file->open(fileName.c_str());
    m_searchGraphOutputCollector.reset(new Moses::OutputCollector(m_outputSearchGraphStream));
  }

  // detailed translation reporting
  if (staticData.IsDetailedTranslationReportingEnabled()) {
    const std::string &path = staticData.GetDetailedTranslationReportingFilePath();
    m_detailedTranslationReportingStream = new std::ofstream(path.c_str());
    m_detailedTranslationCollector.reset(new Moses::OutputCollector(m_detailedTranslationReportingStream));
  }

  if (staticData.IsDetailedTreeFragmentsTranslationReportingEnabled()) {
    const std::string &path = staticData.GetDetailedTreeFragmentsTranslationReportingFilePath();
    m_detailedTreeFragmentsTranslationReportingStream = new std::ofstream(path.c_str());
    m_detailTreeFragmentsOutputCollector.reset(new Moses::OutputCollector(m_detailedTreeFragmentsTranslationReportingStream));
  }

  // wordgraph output
  if (staticData.GetOutputWordGraph()) {
    string fileName;
    staticData.GetParameter().SetParameter<string>(fileName, "output-word-graph", "");

    std::ofstream *file = new std::ofstream;
    m_outputWordGraphStream  = file;
    file->open(fileName.c_str());
    m_wordGraphCollector.reset(new OutputCollector(m_outputWordGraphStream));
  }

  size_t latticeSamplesSize = staticData.GetLatticeSamplesSize();
  string latticeSamplesFile = staticData.GetLatticeSamplesFilePath();
  if (latticeSamplesSize) {
    if (latticeSamplesFile == "-" || latticeSamplesFile == "/dev/stdout") {
      m_latticeSamplesCollector.reset(new OutputCollector());
      m_surpressSingleBestOutput = true;
    } else {
      m_latticeSamplesStream = new ofstream(latticeSamplesFile.c_str());
      if (!m_latticeSamplesStream->good()) {
        TRACE_ERR("ERROR: Failed to open " << latticeSamplesFile << " for lattice samples" << endl);
        exit(1);
      }
      m_latticeSamplesCollector.reset(new OutputCollector(m_latticeSamplesStream));
    }
  }

  if (!m_surpressSingleBestOutput) {
    m_singleBestOutputCollector.reset(new Moses::OutputCollector(&std::cout));
  }

  if (staticData.GetParameter().GetParam("spe-src")) {
    spe_src = new ifstream(staticData.GetParameter().GetParam("spe-src")->at(0).c_str());
    spe_trg = new ifstream(staticData.GetParameter().GetParam("spe-trg")->at(0).c_str());
    spe_aln = new ifstream(staticData.GetParameter().GetParam("spe-aln")->at(0).c_str());
  }
}

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;
  }

  delete m_detailedTranslationReportingStream;
  delete m_alignmentInfoStream;
  delete m_unknownsStream;
  delete m_outputSearchGraphStream;
  delete m_outputWordGraphStream;
  delete m_latticeSamplesStream;
}

// InputType*
// IOWrapper::
// GetInput(InputType* inputType)
// {
//   if(inputType->Read(*m_inputStream, *m_inputFactorOrder)) {
//     return inputType;
//   } else {
//     delete inputType;
//     return NULL;
//   }
// }

boost::shared_ptr<InputType>
IOWrapper::ReadInput()
{
  boost::shared_ptr<InputType> source;
  switch(m_inputType) {
  case SentenceInput:
    source.reset(new Sentence);
    break;
  case ConfusionNetworkInput:
    source.reset(new ConfusionNet);
    break;
  case WordLatticeInput:
    source.reset(new WordLattice);
    break;
  case TreeInputType:
    source.reset(new TreeInput);
    break;
  case TabbedSentenceInput:
    source.reset(new TabbedSentence);
    break;
  case ForestInputType:
    source.reset(new ForestInput);
    break;
  default:
    TRACE_ERR("Unknown input type: " << m_inputType << "\n");
  }
#ifdef WITH_THREADS
  boost::lock_guard<boost::mutex> lock(m_lock);
#endif
  if (source->Read(*m_inputStream, *m_inputFactorOrder))
    source->SetTranslationId(m_currentLine++);
  else 
    source.reset();
  return source;
}

} // namespace