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// $Id$
// vim:tabstop=2
/***********************************************************************
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
***********************************************************************/
#ifndef moses_LexicalReorderingTableCompact_h
#define moses_LexicalReorderingTableCompact_h
#include "BlockHashIndex.h"
#include "CanonicalHuffman.h"
#include "StringVector.h"
#include "../../TypeDef.h"
#include "../../Phrase.h"
namespace Moses2
{
//! additional types
class LexicalReorderingTable
{
public:
LexicalReorderingTable(const FactorList& f_factors,
const FactorList& e_factors, const FactorList& c_factors) :
m_FactorsF(f_factors), m_FactorsE(e_factors), m_FactorsC(c_factors) {
}
virtual ~LexicalReorderingTable() {
}
public:
virtual std::vector<float>
GetScore(const Phrase<Moses2::Word>& f, const Phrase<Moses2::Word>& e, const Phrase<Moses2::Word>& c) = 0;
virtual
void InitializeForInput() {
/* override for on-demand loading */
}
;
virtual
void InitializeForInputPhrase(const Phrase<Moses2::Word>&) {
}
const FactorList& GetFFactorMask() const {
return m_FactorsF;
}
const FactorList& GetEFactorMask() const {
return m_FactorsE;
}
const FactorList& GetCFactorMask() const {
return m_FactorsC;
}
virtual
void DbgDump(std::ostream* out) const {
*out << "Overwrite in subclass...\n";
}
;
// why is this not a pure virtual function? - UG
protected:
FactorList m_FactorsF;
FactorList m_FactorsE;
FactorList m_FactorsC;
};
//////////////////////////////////////////////////////////////////////////////////////////////
class LexicalReorderingTableCompact: public LexicalReorderingTable
{
private:
static bool s_inMemoryByDefault;
bool m_inMemory;
size_t m_numScoreComponent;
bool m_multipleScoreTrees;
BlockHashIndex m_hash;
typedef CanonicalHuffman<float> ScoreTree;
std::vector<ScoreTree*> m_scoreTrees;
StringVector<unsigned char, unsigned long, MmapAllocator> m_scoresMapped;
StringVector<unsigned char, unsigned long, std::allocator> m_scoresMemory;
std::string MakeKey(const Phrase<Moses2::Word>& f, const Phrase<Moses2::Word>& e, const Phrase<Moses2::Word>& c) const;
std::string MakeKey(const std::string& f, const std::string& e,
const std::string& c) const;
public:
LexicalReorderingTableCompact(const std::string& filePath,
const std::vector<FactorType>& f_factors,
const std::vector<FactorType>& e_factors,
const std::vector<FactorType>& c_factors);
LexicalReorderingTableCompact(const std::vector<FactorType>& f_factors,
const std::vector<FactorType>& e_factors,
const std::vector<FactorType>& c_factors);
virtual
~LexicalReorderingTableCompact();
virtual std::vector<float>
GetScore(const Phrase<Moses2::Word>& f, const Phrase<Moses2::Word>& e, const Phrase<Moses2::Word>& c);
static LexicalReorderingTable*
CheckAndLoad(const std::string& filePath,
const std::vector<FactorType>& f_factors,
const std::vector<FactorType>& e_factors,
const std::vector<FactorType>& c_factors);
void
Load(std::string filePath);
};
}
#endif
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