File indexing completed on 2024-05-19 04:50:18

0001 /****************************************************************************************
0002  * Copyright (c) 2008 Nikolaj Hald Nielsen <nhn@kde.org>                                *
0003  *                                                                                      *
0004  * This program is free software; you can redistribute it and/or modify it under        *
0005  * the terms of the GNU General Public License as published by the Free Software        *
0006  * Foundation; either version 2 of the License, or (at your option) any later           *
0007  * version.                                                                             *
0008  *                                                                                      *
0009  * This program is distributed in the hope that it will be useful, but WITHOUT ANY      *
0010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A      *
0011  * PARTICULAR PURPOSE. See the GNU General Public License for more details.             *
0012  *                                                                                      *
0013  * You should have received a copy of the GNU General Public License along with         *
0014  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
0015  ****************************************************************************************/
0016 
0017 #ifndef MAGNATUNEDATABASEWORKER_H
0018 #define MAGNATUNEDATABASEWORKER_H
0019 
0020 #include "MagnatuneMeta.h"
0021 
0022 #include "../ServiceSqlRegistry.h"
0023 
0024 #include <ThreadWeaver/Job>
0025 
0026 /**
0027 A small helper class to do some simple asynchronous database queries
0028 
0029     @author Nikolaj Hald Nielsen <nhn@kde.org>   
0030 */
0031 
0032 class MagnatuneDatabaseWorker : public QObject, public ThreadWeaver::Job
0033 {
0034     Q_OBJECT
0035 public:
0036     MagnatuneDatabaseWorker();
0037 
0038     ~MagnatuneDatabaseWorker() override;
0039 
0040     void run(ThreadWeaver::JobPointer self = QSharedPointer<ThreadWeaver::Job>(), ThreadWeaver::Thread *thread = nullptr) override;
0041 
0042     void fetchMoodMap();
0043     void fetchTrackswithMood( const QString &mood, int noOfTracks, ServiceSqlRegistry * registry );
0044     void fetchAlbumBySku( const QString &sku, ServiceSqlRegistry * registry );
0045 
0046 Q_SIGNALS:
0047     /** This signal is emitted when this job is being processed by a thread. */
0048     void started(ThreadWeaver::JobPointer);
0049     /** This signal is emitted when the job has been finished (no matter if it succeeded or not). */
0050     void done(ThreadWeaver::JobPointer);
0051     /** This job has failed.
0052      * This signal is emitted when success() returns false after the job is executed. */
0053     void failed(ThreadWeaver::JobPointer);
0054 
0055     void gotMoodMap( const QMap<QString, int> &map );
0056     void gotMoodyTracks( const Meta::TrackList &tracks );
0057     void gotAlbumBySku( Meta::MagnatuneAlbum * album );
0058 
0059 private Q_SLOTS:
0060     void completeJob();
0061 
0062 private:
0063 
0064     void doFetchMoodMap();
0065     void doFetchTrackswithMood();
0066     void doFetchAlbumBySku();
0067     
0068     enum taskType { FETCH_MODS, FETCH_MOODY_TRACKS, ALBUM_BY_SKU };
0069 
0070     int m_task;
0071 
0072     QMap<QString, int> m_moodMap;
0073     Meta::TrackList m_moodyTracks;
0074 
0075     QString m_mood;
0076     QString m_sku;
0077     int m_noOfTracks;
0078     Meta::MagnatuneAlbum * m_album;
0079 
0080     ServiceSqlRegistry * m_registry;
0081 
0082 protected:
0083     void defaultBegin(const ThreadWeaver::JobPointer& job, ThreadWeaver::Thread *thread) override;
0084     void defaultEnd(const ThreadWeaver::JobPointer& job, ThreadWeaver::Thread *thread) override;
0085 };
0086 
0087 #endif