File indexing completed on 2024-05-19 04:50:14

 /****************************************************************************************
  * Copyright (c) 2007 Nikolaj Hald Nielsen <nhn@kde.org>                                *
  *                                                                                      *
  * This program is free software; you can redistribute it and/or modify it under        *
  * the terms of the GNU General Public License as published by the Free Software        *
  * Foundation; either version 2 of the License, or (at your option) any later           *
  * version.                                                                             *
  *                                                                                      *
  * This program 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 General Public License for more details.             *
  *                                                                                      *
  * You should have received a copy of the GNU General Public License along with         *
  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
  ****************************************************************************************/
 
 #ifndef JAMENDOXMLPARSER_H
 #define JAMENDOXMLPARSER_H
 
 #include "JamendoDatabaseHandler.h"
 
 #include <ThreadWeaver/Job>
 
 #include <QDomElement>
 #include <QMap>
 #include <QString>
 #include <QStringList>
 #include <QXmlStreamReader>
 
 /**
 * Parser for the XML file from http://imgjam.com/data/dbdump_artistalbumtrack.xml.gz
 *
 * @author Nikolaj Hald Nielsen
 */
 class JamendoXmlParser : public QObject, public ThreadWeaver::Job
 {
     Q_OBJECT
 
 public:
 
     /**
      * Constructor
      * @param fileName The file to parse 
      */
     explicit JamendoXmlParser( const QString &fileName );
 
     /**
      * The function that starts the actual work. Inherited from ThreadWeaver::Job 
      * Note the work is performed in a separate thread
      */
     void run(ThreadWeaver::JobPointer self = QSharedPointer<ThreadWeaver::Job>(), ThreadWeaver::Thread *thread = 0) override;
 
     /**
      * Destructor
      */
     ~JamendoXmlParser();
 
     /**
      * Reads, and starts parsing, file. Should not be used directly.
      * @param filename The file to read
      */
     void readConfigFile( const QString &filename );
 
     virtual void requestAbort ();
 
 Q_SIGNALS:
 
     /** This signal is emitted when this job is being processed by a thread. */
     void started(ThreadWeaver::JobPointer);
     /** This signal is emitted when the job has been finished (no matter if it succeeded or not). */
     void done(ThreadWeaver::JobPointer);
     /** This job has failed.
      * This signal is emitted when success() returns false after the job is executed. */
     void failed(ThreadWeaver::JobPointer);
 
     /**
      * Signal emitted when parsing is complete.
      */
     void doneParsing();
 
 private Q_SLOTS:
     /**
      * Called when the job has completed. Is executed in the GUI thread
      */
     void completeJob();
 
 private:
 
     JamendoDatabaseHandler * m_dbHandler;
     QXmlStreamReader m_reader;
     QString m_sFileName;
 
     QMap<int, QStringList> albumTags; //used for applying genres to individual tracks
 
     int m_nNumberOfTracks;
     int m_nNumberOfAlbums;
     int m_nNumberOfArtists;
 
     /**
      * Read a DOM element representing an artist
      */
     void readArtist();
     /**
      * Read a DOM element representing an album
      */
     void readAlbum();
     /**
      * Read a DOM element representing a track
      */
     void readTrack();
 
     void countTransaction();
     int m_currentArtistId;
     int m_currentAlbumId;
 
     int n_numberOfTransactions;
     int n_maxNumberOfTransactions;
     QHash< int, QString > m_id3GenreHash;
     QMap<int, int> m_albumArtistMap;
 
     bool m_aborted;
 
 protected:
     void defaultBegin(const ThreadWeaver::JobPointer& job, ThreadWeaver::Thread *thread) override;
     void defaultEnd(const ThreadWeaver::JobPointer& job, ThreadWeaver::Thread *thread) override;
 };
 
 #endif