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/****************************************************************************
**
** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.
** All rights reserved.
**
** Portion Copyright (C) 2009 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 "qqueryparser_p.h"
#include "qquery_p.h"
#include "qclucene_global_p.h"
#include <CLucene.h>
#include <CLucene/queryParser/QueryParser.h>
QT_BEGIN_NAMESPACE
QCLuceneQueryParserPrivate::QCLuceneQueryParserPrivate()
: QSharedData()
{
queryParser = 0;
deleteCLuceneQueryParser = true;
}
QCLuceneQueryParserPrivate::QCLuceneQueryParserPrivate(const QCLuceneQueryParserPrivate &other)
: QSharedData()
{
queryParser = _CL_POINTER(other.queryParser);
deleteCLuceneQueryParser = other.deleteCLuceneQueryParser;
}
QCLuceneQueryParserPrivate::~QCLuceneQueryParserPrivate()
{
if (deleteCLuceneQueryParser)
_CLDECDELETE(queryParser);
}
QCLuceneQueryParser::QCLuceneQueryParser(const QString &field,
QCLuceneAnalyzer &analyzer)
: d(new QCLuceneQueryParserPrivate())
, field(field)
, analyzer(analyzer)
{
TCHAR *fieldName = QStringToTChar(field);
d->queryParser = new lucene::queryParser::QueryParser(fieldName,
analyzer.d->analyzer);
delete [] fieldName;
}
QCLuceneQueryParser::~QCLuceneQueryParser()
{
// nothing todo
}
QCLuceneQuery* QCLuceneQueryParser::parse(const QString &query)
{
TCHAR *string = QStringToTChar(query);
QCLuceneQuery *retValue = 0;
lucene::search::Query* q = d->queryParser->parse(string);
if (q) {
retValue = new QCLuceneQuery();
retValue->d->query = q;
}
delete [] string;
return retValue;
}
QCLuceneQuery* QCLuceneQueryParser::parse(QCLuceneReader &reader)
{
QCLuceneQuery *retValue = 0;
lucene::search::Query* q = d->queryParser->parse(reader.d->reader);
if (q) {
retValue = new QCLuceneQuery();
retValue->d->query = q;
}
return retValue;
}
QCLuceneQuery* QCLuceneQueryParser::parse(const QString &query, const QString &field,
QCLuceneAnalyzer &analyzer)
{
QCLuceneQueryParser parser(field, analyzer);
return parser.parse(query);
}
QCLuceneAnalyzer QCLuceneQueryParser::getAnalyzer()
{
return analyzer;
}
QString QCLuceneQueryParser::getField()
{
return field;
}
QCLuceneMultiFieldQueryParser::QCLuceneMultiFieldQueryParser(
const QStringList &fieldList, QCLuceneAnalyzer &analyzer)
: QCLuceneQueryParser(QLatin1String(""), analyzer)
{
Q_UNUSED(fieldList)
}
QCLuceneMultiFieldQueryParser::~QCLuceneMultiFieldQueryParser()
{
// nothing todo
}
QCLuceneQuery* QCLuceneMultiFieldQueryParser::parse(const QString &query,
const QStringList &fieldList,
QCLuceneAnalyzer &analyzer)
{
QCLuceneBooleanQuery *retValue = new QCLuceneBooleanQuery();
foreach (const QString &field, fieldList) {
QCLuceneQuery *q = QCLuceneQueryParser::parse(query, field, analyzer);
if (!q) {
delete retValue;
retValue = 0; break;
} else {
retValue->add(q, true, false, false);
}
}
return retValue;
}
QCLuceneQuery* QCLuceneMultiFieldQueryParser::parse(const QString &query,
const QStringList &fieldList,
QList<FieldFlags> flags,
QCLuceneAnalyzer &analyzer)
{
QCLuceneBooleanQuery *retValue = new QCLuceneBooleanQuery();
qint32 i = 0;
foreach (const QString &field, fieldList) {
QCLuceneQuery *q = QCLuceneQueryParser::parse(query, field, analyzer);
if (q) {
qint32 flag = flags.at(i);
switch (flag) {
case QCLuceneMultiFieldQueryParser::REQUIRED_FIELD: {
retValue->add(q, true, true, false);
} break;
case QCLuceneMultiFieldQueryParser::PROHIBITED_FIELD: {
retValue->add(q, true, false, true);
} break;
default: {
retValue->add(q, true, false, false);
} break;
}
++i;
} else {
delete retValue;
retValue = 0; break;
}
}
return retValue;
}
QT_END_NAMESPACE
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