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// $Id$
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#include <fstream>
#include <string>
#include "GenerationDictionary.h"
#include "FactorCollection.h"
#include "Word.h"
#include "Util.h"
#include "InputFileStream.h"
#include "StaticData.h"
using namespace std;
GenerationDictionary::GenerationDictionary()
: Dictionary(1)
{
const_cast<ScoreIndexManager&>(StaticData::Instance()->GetScoreIndexManager()).AddScoreProducer(this);
}
void GenerationDictionary::Load(const std::vector<FactorType> &input
, const std::vector<FactorType> &output
, FactorCollection &factorCollection
, const std::string &filePath
, float weight
, FactorDirection direction)
{
m_weight = weight;
//factors
m_factorsUsed[Input] = new FactorTypeSet(input);
m_factorsUsed[Output] = new FactorTypeSet(output);
// data from file
InputFileStream inFile(filePath);
m_filename = filePath;
string line;
while(getline(inFile, line))
{
vector<string> token = Tokenize( line );
// add each line in generation file into class
Word inputWord, outputWord;
// create word with certain factors filled out
// inputs
vector<string> factorString = Tokenize( token[0], "|" );
for (size_t i = 0 ; i < input.size() ; i++)
{
FactorType factorType = input[i];
const Factor *factor = factorCollection.AddFactor( direction, factorType, factorString[i]);
inputWord.SetFactor(factorType, factor);
}
factorString = Tokenize( token[1], "|" );
for (size_t i = 0 ; i < output.size() ; i++)
{
FactorType factorType = output[i];
const Factor *factor = factorCollection.AddFactor( direction, factorType, factorString[i]);
outputWord.SetFactor(factorType, factor);
}
float score = TransformScore(Scan<float>(token[2]));
m_collection[inputWord][outputWord] = score;
}
inFile.Close();
}
GenerationDictionary::~GenerationDictionary()
{
for (size_t i = 0 ; i < m_factorsUsed.size() ; i++)
{
delete m_factorsUsed[i];
}
}
unsigned int GenerationDictionary::GetNumScoreComponents() const
{
return this->GetNoScoreComponents();
}
const std::string GenerationDictionary::GetScoreProducerDescription() const
{
return "Generation score, file=" + m_filename;
}
const OutputWordCollection *GenerationDictionary::FindWord(const FactorArray &factorArray) const
{
const OutputWordCollection *ret;
Word word;
Word::Copy(word.GetFactorArray(), factorArray);
std::map<Word , OutputWordCollection>::const_iterator iter = m_collection.find(word);
if (iter == m_collection.end())
{ // can't find source phrase
ret = NULL;
}
else
{
ret = &iter->second;
}
return ret;
}
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