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Code Issues Releases Wiki Activity

Actually start writing cached info to disk

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This commit is contained in:
Jeff Mitchell 2011-04-05 20:20:49 -04:00
parent baa039bbf6
commit db8088b30f
4 changed files with 120 additions and 22 deletions
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2
include/tomahawk/infosystem.h
View File

@ -36,7 +36,7 @@ namespace InfoSystem {
class InfoSystemCache;
enum InfoType {
InfoTrackID,
InfoTrackID = 0,
InfoTrackArtist,
InfoTrackAlbum,
InfoTrackGenre,

119
src/infosystem/infosystemcache.cpp
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@ -17,29 +17,128 @@
*/
#include <QtDebug>
#include <QDesktopServices>
#include <QDir>
#include <QSettings>
#include "infosystemcache.h"
void
Tomahawk::InfoSystem::InfoSystemCache::getCachedInfoSlot( Tomahawk::InfoSystem::InfoCacheCriteria criteria, QString caller, Tomahawk::InfoSystem::InfoType type, QVariant input, Tomahawk::InfoSystem::InfoCustomData customData )
namespace Tomahawk
{
namespace InfoSystem
{
InfoSystemCache::InfoSystemCache( QObject* parent )
: QObject(parent)
{
qDebug() << Q_FUNC_INFO;
if( !m_memCache.contains( type ) || !m_memCache[type].contains( criteria ) )
QString cacheBaseDir = QDesktopServices::storageLocation( QDesktopServices::CacheLocation );
for( int i = 0; i <= InfoNoInfo; i++ )
{
InfoType type = (InfoType)(i);
if( m_dirtySet.contains( type ) && m_dataCache.contains( type ) )
{
QString cacheDir = cacheBaseDir + QString::number( i );
QDir dir( cacheDir );
if( dir.exists() && QFile::exists( QString( cacheDir + '/' + QString::number( i ) ) ) )
loadCache( type, QString( cacheDir + '/' + QString::number( i ) ) );
}
}
}
InfoSystemCache::~InfoSystemCache()
{
qDebug() << Q_FUNC_INFO;
qDebug() << "Saving infosystemcache to disk";
QString cacheBaseDir = QDesktopServices::storageLocation( QDesktopServices::CacheLocation );
for( int i = 0; i <= InfoNoInfo; i++ )
{
InfoType type = (InfoType)(i);
if( m_dirtySet.contains( type ) && m_dataCache.contains( type ) )
{
QString cacheDir = cacheBaseDir + QString::number( i );
saveCache( type, cacheDir );
}
}
}
void
InfoSystemCache::getCachedInfoSlot( Tomahawk::InfoSystem::InfoCacheCriteria criteria, QString caller, Tomahawk::InfoSystem::InfoType type, QVariant input, Tomahawk::InfoSystem::InfoCustomData customData )
{
qDebug() << Q_FUNC_INFO;
if( !m_dataCache.contains( type ) || !m_dataCache[type].contains( criteria ) )
{
emit notInCache( criteria, caller, type, input, customData );
return;
}
emit info( caller, type, input, m_memCache[type][criteria], customData );
emit info( caller, type, input, m_dataCache[type][criteria], customData );
}
void
Tomahawk::InfoSystem::InfoSystemCache::updateCacheSlot( Tomahawk::InfoSystem::InfoCacheCriteria criteria, Tomahawk::InfoSystem::InfoType type, QVariant output )
InfoSystemCache::updateCacheSlot( Tomahawk::InfoSystem::InfoCacheCriteria criteria, Tomahawk::InfoSystem::InfoType type, QVariant output )
{
qDebug() << Q_FUNC_INFO;
QHash< InfoCacheCriteria, QVariant > typecache;
if( m_memCache.contains( type ) )
typecache = m_memCache[type];
typecache[criteria] = output;
m_memCache[type] = typecache;
QHash< InfoCacheCriteria, QVariant > typedatacache;
QHash< InfoCacheCriteria, QDateTime > typetimecache;
typedatacache[criteria] = output;
typetimecache[criteria] = QDateTime::currentDateTimeUtc();
m_dataCache[type] = typedatacache;
m_timeCache[type] = typetimecache;
m_dirtySet.insert( type );
}
void
InfoSystemCache::loadCache( InfoType type, const QString &cacheDir )
{
qDebug() << Q_FUNC_INFO;
}
void
InfoSystemCache::saveCache( InfoType type, const QString &cacheDir )
{
qDebug() << Q_FUNC_INFO;
QDir dir( cacheDir );
if( !dir.exists( cacheDir ) )
{
qDebug() << "Creating cache directory " << cacheDir;
if( !dir.mkpath( cacheDir ) )
{
qDebug() << "Failed to create cache dir! Bailing...";
return;
}
}
QSettings cacheFile( QString( cacheDir + '/' + QString::number( (int)type ) ), QSettings::IniFormat );
foreach( InfoCacheCriteria criteria, m_dataCache[type].keys() )
{
cacheFile.beginGroup( "type_" + QString::number( type ) );
cacheFile.beginWriteArray( "criteria" );
QStringList keys = criteria.keys();
for( int i = 0; i < criteria.size(); i++ )
{
cacheFile.setArrayIndex( i );
cacheFile.setValue( keys.at( i ), criteria[keys.at( i )] );
}
cacheFile.endArray();
cacheFile.setValue( "data", m_dataCache[type][criteria] );
cacheFile.setValue( "time", m_timeCache[type][criteria] );
cacheFile.endGroup();
}
m_dirtySet.remove( type );
}
} //namespace InfoSystem
} //namespace Tomahawk

19
src/infosystem/infosystemcache.h
View File

@ -19,6 +19,7 @@
#ifndef TOMAHAWK_INFOSYSTEMCACHE_H
#define TOMAHAWK_INFOSYSTEMCACHE_H
#include <QDateTime>
#include <QObject>
#include <QtDebug>
@ -35,16 +36,9 @@ class InfoSystemCache : public QObject
Q_OBJECT
public:
InfoSystemCache( QObject *parent = 0 )
: QObject( parent )
{
qDebug() << Q_FUNC_INFO;
}
InfoSystemCache( QObject *parent = 0 );
virtual ~InfoSystemCache()
{
qDebug() << Q_FUNC_INFO;
}
virtual ~InfoSystemCache();
signals:
void notInCache( Tomahawk::InfoSystem::InfoCacheCriteria criteria, QString caller, Tomahawk::InfoSystem::InfoType type, QVariant input, Tomahawk::InfoSystem::InfoCustomData customData );
@ -55,7 +49,12 @@ public slots:
void updateCacheSlot( Tomahawk::InfoSystem::InfoCacheCriteria criteria, Tomahawk::InfoSystem::InfoType type, QVariant output );
private:
QHash< InfoType, QHash< InfoCacheCriteria, QVariant > > m_memCache;
void loadCache( InfoType type, const QString &cache );
void saveCache( InfoType type, const QString &cache );
QHash< InfoType, QHash< InfoCacheCriteria, QVariant > > m_dataCache;
QHash< InfoType, QHash< InfoCacheCriteria, QDateTime > > m_timeCache;
QSet< InfoType > m_dirtySet;
};
} //namespace InfoSystem

2
src/tomahawkapp.cpp
View File

@ -299,7 +299,7 @@ TomahawkApp::~TomahawkApp()
delete m_mainwindow;
delete m_audioEngine;
#endif
delete m_infoSystem;
delete m_database;
}