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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Assistant of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QHELPSEARCHINDEXREADERCLUCENE_H
#define QHELPSEARCHINDEXREADERCLUCENE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the help generator tools. This header file may change from version
// to version without notice, or even be removed.
//
// We mean it.
//
#include "qhelpsearchengine.h"
#include "fulltextsearch/qanalyzer_p.h"
#include "fulltextsearch/qquery_p.h"
#include <QtCore/QList>
#include <QtCore/QMutex>
#include <QtCore/QObject>
#include <QtCore/QString>
#include <QtCore/QThread>
#include <QtCore/QWaitCondition>
class QHelpEngineCore;
QT_BEGIN_NAMESPACE
namespace qt {
namespace fulltextsearch {
namespace clucene {
class QHelpSearchIndexReader : public QThread
{
Q_OBJECT
public:
QHelpSearchIndexReader();
~QHelpSearchIndexReader();
void cancelSearching();
void search(const QString &collectionFile,
const QString &indexFilesFolder,
const QList<QHelpSearchQuery> &queryList);
int hitsCount() const;
QList<QHelpSearchEngine::SearchHit> hits(int start, int end) const;
signals:
void searchingStarted();
void searchingFinished(int hits);
private:
void run();
bool defaultQuery(const QString &term, QCLuceneBooleanQuery &booleanQuery,
QCLuceneStandardAnalyzer &analyzer);
bool buildQuery(QCLuceneBooleanQuery &booleanQuery, const QList<QHelpSearchQuery> &queryList,
QCLuceneStandardAnalyzer &analyzer);
bool buildTryHarderQuery(QCLuceneBooleanQuery &booleanQuery,
const QList<QHelpSearchQuery> &queryList, QCLuceneStandardAnalyzer &analyzer);
void boostSearchHits(const QHelpEngineCore &engine, QList<QHelpSearchEngine::SearchHit> &hitList,
const QList<QHelpSearchQuery> &queryList);
private:
mutable QMutex mutex;
QList<QHelpSearchEngine::SearchHit> hitList;
bool m_cancel;
QString m_collectionFile;
QList<QHelpSearchQuery> m_query;
QString m_indexFilesFolder;
};
} // namespace clucene
} // namespace fulltextsearch
} // namespace qt
QT_END_NAMESPACE
#endif // QHELPSEARCHINDEXREADERCLUCENE_H
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