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#ifndef QHELPSEARCHINDEXWRITERCLUCENE_H

#define QHELPSEARCHINDEXWRITERCLUCENE_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 "qhelpenginecore.h"

#include "fulltextsearch/qanalyzer_p.h"

#include <QtCore/QUrl>

#include <QtCore/QThread>

#include <QtCore/QMutex>

#include <QtCore/QObject>

#include <QtCore/QString>

#include <QtCore/QDateTime>

#include <QtCore/QStringList>

#include <QtCore/QWaitCondition>

QT_BEGIN_NAMESPACE

class QCLuceneIndexWriter;

namespace qt {

    namespace fulltextsearch {

        namespace clucene {

class QHelpSearchIndexWriter : public QThread

{

    Q_OBJECT

public:

    QHelpSearchIndexWriter();

    ~QHelpSearchIndexWriter();

    void cancelIndexing();

    void updateIndex(const QString &collectionFile,

        const QString &indexFilesFolder, bool reindex);

    void optimizeIndex();

signals:

    void indexingStarted();

    void indexingFinished();

private:

    void run();

    bool addDocuments(const QList<QUrl> docFiles, const QHelpEngineCore &engine,

        const QStringList &attributes, const QString &namespaceName,

        QCLuceneIndexWriter *writer, QCLuceneAnalyzer &analyzer);

    void removeDocuments(const QString &indexPath, const QString &namespaceName);

    bool writeIndexMap(QHelpEngineCore& engine,

        const QMap<QString, QDateTime>& indexMap);

    QList<QUrl> indexableFiles(QHelpEngineCore *helpEngine,

        const QString &namespaceName, const QStringList &attributes) const;

    void closeIndexWriter(QCLuceneIndexWriter *writer);

private:

    QMutex mutex;

    QWaitCondition waitCondition;

    bool m_cancel;

    bool m_reindex;

    QString m_collectionFile;

    QString m_indexFilesFolder;

};

        }   // namespace clucene

    }   // namespace fulltextsearch

}   // namespace clucene

QT_END_NAMESPACE

#endif  // QHELPSEARCHINDEXWRITERCLUCENE_H