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// $Id$
/***********************************************************************
Moses - factored phrase-based, hierarchical and syntactic language decoder
Copyright (C) 2009 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
***********************************************************************/
#ifdef WIN32
#include <direct.h>
#endif
#include <sys/stat.h>
#include "util/check.hh"
#include <string>
#include "OnDiskWrapper.h"
using namespace std;
namespace OnDiskPt
{
int OnDiskWrapper::VERSION_NUM = 5;
OnDiskWrapper::OnDiskWrapper()
{
}
OnDiskWrapper::~OnDiskWrapper()
{
delete m_rootSourceNode;
}
bool OnDiskWrapper::BeginLoad(const std::string &filePath)
{
if (!OpenForLoad(filePath))
return false;
if (!m_vocab.Load(*this))
return false;
UINT64 rootFilePos = GetMisc("RootNodeOffset");
m_rootSourceNode = new PhraseNode(rootFilePos, *this);
return true;
}
bool OnDiskWrapper::OpenForLoad(const std::string &filePath)
{
m_fileSource.open((filePath + "/Source.dat").c_str(), ios::in | ios::binary);
CHECK(m_fileSource.is_open());
m_fileTargetInd.open((filePath + "/TargetInd.dat").c_str(), ios::in | ios::binary);
CHECK(m_fileTargetInd.is_open());
m_fileTargetColl.open((filePath + "/TargetColl.dat").c_str(), ios::in | ios::binary);
CHECK(m_fileTargetColl.is_open());
m_fileVocab.open((filePath + "/Vocab.dat").c_str(), ios::in);
CHECK(m_fileVocab.is_open());
m_fileMisc.open((filePath + "/Misc.dat").c_str(), ios::in);
CHECK(m_fileMisc.is_open());
// set up root node
LoadMisc();
m_numSourceFactors = GetMisc("NumSourceFactors");
m_numTargetFactors = GetMisc("NumTargetFactors");
m_numScores = GetMisc("NumScores");
return true;
}
bool OnDiskWrapper::LoadMisc()
{
char line[100000];
while(m_fileMisc.getline(line, 100000)) {
vector<string> tokens;
Moses::Tokenize(tokens, line);
CHECK(tokens.size() == 2);
const string &key = tokens[0];
m_miscInfo[key] = Moses::Scan<UINT64>(tokens[1]);
}
return true;
}
bool OnDiskWrapper::BeginSave(const std::string &filePath
, int numSourceFactors, int numTargetFactors, int numScores)
{
m_numSourceFactors = numSourceFactors;
m_numTargetFactors = numTargetFactors;
m_numScores = numScores;
m_filePath = filePath;
#ifdef WIN32
mkdir(filePath.c_str());
#else
mkdir(filePath.c_str(), 0777);
#endif
m_fileSource.open((filePath + "/Source.dat").c_str(), ios::out | ios::in | ios::binary | ios::ate | ios::trunc);
CHECK(m_fileSource.is_open());
m_fileTargetInd.open((filePath + "/TargetInd.dat").c_str(), ios::out | ios::binary | ios::ate | ios::trunc);
CHECK(m_fileTargetInd.is_open());
m_fileTargetColl.open((filePath + "/TargetColl.dat").c_str(), ios::out | ios::binary | ios::ate | ios::trunc);
CHECK(m_fileTargetColl.is_open());
m_fileVocab.open((filePath + "/Vocab.dat").c_str(), ios::out | ios::ate | ios::trunc);
CHECK(m_fileVocab.is_open());
m_fileMisc.open((filePath + "/Misc.dat").c_str(), ios::out | ios::ate | ios::trunc);
CHECK(m_fileMisc.is_open());
// offset by 1. 0 offset is reserved
char c = 0xff;
m_fileSource.write(&c, 1);
CHECK(1 == m_fileSource.tellp());
m_fileTargetInd.write(&c, 1);
CHECK(1 == m_fileTargetInd.tellp());
m_fileTargetColl.write(&c, 1);
CHECK(1 == m_fileTargetColl.tellp());
// set up root node
CHECK(GetNumCounts() == 1);
vector<float> counts(GetNumCounts());
counts[0] = DEFAULT_COUNT;
m_rootSourceNode = new PhraseNode();
m_rootSourceNode->AddCounts(counts);
return true;
}
void OnDiskWrapper::EndSave()
{
bool ret = m_rootSourceNode->Saved();
CHECK(ret);
GetVocab().Save(*this);
SaveMisc();
m_fileMisc.close();
m_fileVocab.close();
m_fileSource.close();
m_fileTarget.close();
m_fileTargetInd.close();
m_fileTargetColl.close();
}
void OnDiskWrapper::SaveMisc()
{
m_fileMisc << "Version " << VERSION_NUM << endl;
m_fileMisc << "NumSourceFactors " << m_numSourceFactors << endl;
m_fileMisc << "NumTargetFactors " << m_numTargetFactors << endl;
m_fileMisc << "NumScores " << m_numScores << endl;
m_fileMisc << "RootNodeOffset " << m_rootSourceNode->GetFilePos() << endl;
}
size_t OnDiskWrapper::GetSourceWordSize() const
{
return sizeof(UINT64) + sizeof(char);
}
size_t OnDiskWrapper::GetTargetWordSize() const
{
return sizeof(UINT64) + sizeof(char);
}
UINT64 OnDiskWrapper::GetMisc(const std::string &key) const
{
std::map<std::string, UINT64>::const_iterator iter;
iter = m_miscInfo.find(key);
CHECK(iter != m_miscInfo.end());
return iter->second;
}
PhraseNode &OnDiskWrapper::GetRootSourceNode()
{
return *m_rootSourceNode;
}
Word *OnDiskWrapper::ConvertFromMoses(Moses::FactorDirection /* direction */
, const std::vector<Moses::FactorType> &factorsVec
, const Moses::Word &origWord) const
{
bool isNonTerminal = origWord.IsNonTerminal();
Word *newWord = new Word(isNonTerminal);
stringstream strme;
size_t factorType = factorsVec[0];
const Moses::Factor *factor = origWord.GetFactor(factorType);
CHECK(factor);
strme << factor->GetString();
for (size_t ind = 1 ; ind < factorsVec.size() ; ++ind) {
size_t factorType = factorsVec[ind];
const Moses::Factor *factor = origWord.GetFactor(factorType);
if (factor == NULL)
{ // can have less factors than factorType.size()
break;
}
CHECK(factor);
strme << "|" << factor->GetString();
} // for (size_t factorType
bool found;
UINT64 vocabId = m_vocab.GetVocabId(strme.str(), found);
if (!found) {
// factor not in phrase table -> phrse definately not in. exit
delete newWord;
return NULL;
} else {
newWord->SetVocabId(vocabId);
return newWord;
}
}
}
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