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// $Id$
// vim:tabstop=2
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2010 Hieu Hoang
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
***********************************************************************/
#pragma once
#include <vector>
#include "ChartCell.h"
#include "ChartTranslationOptionCollection.h"
#include "ChartCellCollection.h"
#include "InputType.h"
#include "WordsRange.h"
#include "SentenceStats.h"
#include "TranslationSystem.h"
#include "ChartRuleLookupManager.h"
#include <boost/shared_ptr.hpp>
namespace Moses
{
class ChartHypothesis;
class ChartTrellisDetourQueue;
class ChartTrellisNode;
class ChartTrellisPath;
class ChartTrellisPathList;
class ChartManager
{
private:
static void CreateDeviantPaths(boost::shared_ptr<const ChartTrellisPath>,
ChartTrellisDetourQueue &);
static void CreateDeviantPaths(boost::shared_ptr<const ChartTrellisPath>,
const ChartTrellisNode &,
ChartTrellisDetourQueue &);
InputType const& m_source; /**< source sentence to be translated */
ChartCellCollection m_hypoStackColl;
ChartTranslationOptionCollection m_transOptColl; /**< pre-computed list of translation options for the phrases in this sentence */
std::auto_ptr<SentenceStats> m_sentenceStats;
const TranslationSystem* m_system;
clock_t m_start; /**< starting time, used for logging */
std::vector<ChartRuleLookupManager*> m_ruleLookupManagers;
unsigned m_hypothesisId; /* For handing out hypothesis ids to ChartHypothesis */
public:
ChartManager(InputType const& source, const TranslationSystem* system);
~ChartManager();
void ProcessSentence();
const ChartHypothesis *GetBestHypothesis() const;
void CalcNBest(size_t count, ChartTrellisPathList &ret,bool onlyDistinct=0) const;
void GetSearchGraph(long translationId, std::ostream &outputSearchGraphStream) const;
void FindReachableHypotheses( const ChartHypothesis *hypo, std::map<unsigned,bool> &reachable ) const; /* auxilliary function for GetSearchGraph */
const InputType& GetSource() const {
return m_source;
}
const TranslationSystem* GetTranslationSystem() const {
return m_system;
}
SentenceStats& GetSentenceStats() const {
return *m_sentenceStats;
}
/***
* to be called after processing a sentence (which may consist of more than just calling ProcessSentence() )
*/
void CalcDecoderStatistics() const;
void ResetSentenceStats(const InputType& source) {
m_sentenceStats = std::auto_ptr<SentenceStats>(new SentenceStats(source));
}
unsigned GetNextHypoId() { return m_hypothesisId++; }
};
}
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