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/****************************************************************************
**
** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.
** All rights reserved.
**
** Portion Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
****************************************************************************/
#include "qanalyzer_p.h"
#include "qclucene_global_p.h"
#include <CLucene.h>
#include <CLucene/analysis/AnalysisHeader.h>
QT_BEGIN_NAMESPACE
QCLuceneAnalyzerPrivate::QCLuceneAnalyzerPrivate()
: QSharedData()
{
analyzer = 0;
deleteCLuceneAnalyzer = true;
}
QCLuceneAnalyzerPrivate::QCLuceneAnalyzerPrivate(const QCLuceneAnalyzerPrivate &other)
: QSharedData()
{
analyzer = _CL_POINTER(other.analyzer);
deleteCLuceneAnalyzer = other.deleteCLuceneAnalyzer;
}
QCLuceneAnalyzerPrivate::~QCLuceneAnalyzerPrivate()
{
if (deleteCLuceneAnalyzer)
_CLDECDELETE(analyzer);
}
QCLuceneAnalyzer::QCLuceneAnalyzer()
: d(new QCLuceneAnalyzerPrivate())
{
//nothing todo, private
}
QCLuceneAnalyzer::~QCLuceneAnalyzer()
{
// nothing todo
}
qint32 QCLuceneAnalyzer::positionIncrementGap(const QString &fieldName) const
{
Q_UNUSED(fieldName);
return 0;
}
QCLuceneTokenStream QCLuceneAnalyzer::tokenStream(const QString &fieldName,
const QCLuceneReader &reader) const
{
TCHAR *fName = QStringToTChar(fieldName);
QCLuceneTokenStream tokenStream;
tokenStream.d->tokenStream = d->analyzer->tokenStream(fName, reader.d->reader);
delete [] fName;
return tokenStream;
}
QCLuceneStandardAnalyzer::QCLuceneStandardAnalyzer()
: QCLuceneAnalyzer()
{
d->analyzer = new lucene::analysis::standard::StandardAnalyzer();
}
QCLuceneStandardAnalyzer::~QCLuceneStandardAnalyzer()
{
// nothing todo
}
QCLuceneStandardAnalyzer::QCLuceneStandardAnalyzer(const QStringList &stopWords)
{
const TCHAR **tArray = new const TCHAR*[stopWords.count() +1];
for(int i = 0; i < stopWords.count(); ++i) {
TCHAR *stopWord = QStringToTChar(stopWords.at(i));
tArray[i] = STRDUP_TtoT(stopWord);
delete [] stopWord;
}
tArray[stopWords.count()] = 0;
d->analyzer = new lucene::analysis::standard::StandardAnalyzer(tArray);
for (int i = 0; i < stopWords.count(); ++i)
delete [] tArray[i];
delete [] tArray;
}
QCLuceneWhitespaceAnalyzer::QCLuceneWhitespaceAnalyzer()
: QCLuceneAnalyzer()
{
d->analyzer = new lucene::analysis::WhitespaceAnalyzer();
}
QCLuceneWhitespaceAnalyzer::~QCLuceneWhitespaceAnalyzer()
{
// nothing todo
}
QCLuceneSimpleAnalyzer::QCLuceneSimpleAnalyzer()
: QCLuceneAnalyzer()
{
d->analyzer = new lucene::analysis::SimpleAnalyzer();
}
QCLuceneSimpleAnalyzer::~QCLuceneSimpleAnalyzer()
{
// nothing todo
}
QCLuceneStopAnalyzer::QCLuceneStopAnalyzer()
: QCLuceneAnalyzer()
{
d->analyzer = new lucene::analysis::StopAnalyzer();
}
QCLuceneStopAnalyzer::~QCLuceneStopAnalyzer()
{
// nothing todo
}
QCLuceneStopAnalyzer::QCLuceneStopAnalyzer(const QStringList &stopWords)
: QCLuceneAnalyzer()
{
const TCHAR **tArray = new const TCHAR*[stopWords.count() +1];
for(int i = 0; i < stopWords.count(); ++i) {
TCHAR *stopWord = QStringToTChar(stopWords.at(i));
tArray[i] = STRDUP_TtoT(stopWord);
delete [] stopWord;
}
tArray[stopWords.count()] = 0;
d->analyzer = new lucene::analysis::StopAnalyzer(tArray);
for (int i = 0; i < stopWords.count(); ++i)
delete [] tArray[i];
delete [] tArray;
}
QStringList QCLuceneStopAnalyzer::englishStopWords() const
{
QStringList stopWordList;
const TCHAR** stopWords = lucene::analysis::StopAnalyzer::ENGLISH_STOP_WORDS;
for (qint32 i = 0; stopWords[i] != 0; ++i)
stopWordList.append(TCharToQString(stopWords[i]));
return stopWordList;
}
QCLuceneKeywordAnalyzer::QCLuceneKeywordAnalyzer()
: QCLuceneAnalyzer()
{
d->analyzer = new lucene::analysis::KeywordAnalyzer();
}
QCLuceneKeywordAnalyzer::~QCLuceneKeywordAnalyzer()
{
// nothing todo
}
QCLucenePerFieldAnalyzerWrapper::QCLucenePerFieldAnalyzerWrapper(
QCLuceneAnalyzer *defaultAnalyzer)
: QCLuceneAnalyzer()
{
d->analyzer = new
lucene::analysis::PerFieldAnalyzerWrapper(defaultAnalyzer->d->analyzer);
analyzers.append(defaultAnalyzer);
defaultAnalyzer->d->deleteCLuceneAnalyzer = false;
}
QCLucenePerFieldAnalyzerWrapper::~QCLucenePerFieldAnalyzerWrapper()
{
qDeleteAll(analyzers);
}
void QCLucenePerFieldAnalyzerWrapper::addAnalyzer(const QString &fieldName,
QCLuceneAnalyzer *analyzer)
{
lucene::analysis::PerFieldAnalyzerWrapper *analyzerWrapper =
static_cast<lucene::analysis::PerFieldAnalyzerWrapper*> (d->analyzer);
if (analyzerWrapper == 0)
return;
analyzers.append(analyzer);
analyzer->d->deleteCLuceneAnalyzer = false;
TCHAR *fName = QStringToTChar(fieldName);
analyzerWrapper->addAnalyzer(fName, analyzer->d->analyzer);
delete [] fName;
}
QT_END_NAMESPACE
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