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00020 #include "attributefactory.h"
00021
00022 #include "collectionquotaattribute.h"
00023 #include "collectionrightsattribute_p.h"
00024 #include "entitydisplayattribute.h"
00025 #include "entityhiddenattribute.h"
00026 #include "indexpolicyattribute.h"
00027 #include "persistentsearchattribute.h"
00028
00029 #include <KGlobal>
00030
00031 #include <QtCore/QHash>
00032
00033 using namespace Akonadi;
00034
00035 namespace Akonadi {
00036 namespace Internal {
00037
00041 class DefaultAttribute : public Attribute
00042 {
00043 public:
00044 explicit DefaultAttribute( const QByteArray &type, const QByteArray &value = QByteArray() ) :
00045 mType( type ),
00046 mValue( value )
00047 {}
00048
00049 QByteArray type() const { return mType; }
00050 Attribute* clone() const
00051 {
00052 return new DefaultAttribute( mType, mValue );
00053 }
00054
00055 QByteArray serialized() const { return mValue; }
00056 void deserialize( const QByteArray &data ) { mValue = data; }
00057
00058 private:
00059 QByteArray mType, mValue;
00060 };
00061
00065 class StaticAttributeFactory : public AttributeFactory
00066 {
00067 public:
00068 StaticAttributeFactory() : AttributeFactory(), initialized( false ) {}
00069 void init() {
00070 if ( initialized )
00071 return;
00072 initialized = true;
00073
00074
00075 AttributeFactory::registerAttribute<CollectionQuotaAttribute>();
00076 AttributeFactory::registerAttribute<CollectionRightsAttribute>();
00077 AttributeFactory::registerAttribute<EntityDisplayAttribute>();
00078 AttributeFactory::registerAttribute<EntityHiddenAttribute>();
00079 AttributeFactory::registerAttribute<IndexPolicyAttribute>();
00080 AttributeFactory::registerAttribute<PersistentSearchAttribute>();
00081 }
00082 bool initialized;
00083 };
00084
00085 K_GLOBAL_STATIC( StaticAttributeFactory, s_attributeInstance )
00086
00087 }
00088
00089 using Akonadi::Internal::s_attributeInstance;
00090
00094 class AttributeFactory::Private
00095 {
00096 public:
00097 QHash<QByteArray, Attribute*> attributes;
00098 };
00099
00100
00101 AttributeFactory* AttributeFactory::self()
00102 {
00103 s_attributeInstance->init();
00104 return s_attributeInstance;
00105 }
00106
00107 AttributeFactory::AttributeFactory()
00108 : d( new Private )
00109 {
00110 }
00111
00112 AttributeFactory::~ AttributeFactory()
00113 {
00114 qDeleteAll( d->attributes );
00115 delete d;
00116 }
00117
00118 void AttributeFactory::registerAttribute(Attribute *attr)
00119 {
00120 Q_ASSERT( attr );
00121 Q_ASSERT( !attr->type().contains(' ') && !attr->type().contains('\'') && !attr->type().contains('"') );
00122 QHash<QByteArray, Attribute*>::Iterator it = d->attributes.find( attr->type() );
00123 if ( it != d->attributes.end() ) {
00124 delete *it;
00125 d->attributes.erase( it );
00126 }
00127 d->attributes.insert( attr->type(), attr );
00128 }
00129
00130 Attribute* AttributeFactory::createAttribute(const QByteArray &type)
00131 {
00132 Attribute* attr = self()->d->attributes.value( type );
00133 if ( attr )
00134 return attr->clone();
00135 return new Internal::DefaultAttribute( type );
00136 }
00137
00138 }
00139