Mode FacadeFactory to separate file, mutex protected it, and loaded

resource

The factory is potentially used from several queries simultaneously,
so it's now mutex protected.
Additionally we try to load the plugins directly in the factory.

1 files changed, 79 insertions, 0 deletions

diff --git a/common/facadefactory.cpp b/common/facadefactory.cpp
new file mode 100644
index 0000000..f833b06
--- /dev/null
+++ b/common/facadefactory.cpp
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2014 Christian Mollekopf <chrigi_1@fastmail.fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) version 3, or any
+ * later version accepted by the membership of KDE e.V. (or its
+ * successor approved by the membership of KDE e.V.), which shall
+ * act as a proxy defined in Section 6 of version 3 of the license.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "facadefactory.h"
+
+#include "resourcefacade.h"
+#include "resource.h"
+
+using namespace Akonadi2;
+
+QMutex FacadeFactory::sMutex;
+
+FacadeFactory::FacadeFactory()
+{
+    registerStaticFacades();
+}
+
+FacadeFactory &FacadeFactory::instance()
+{
+    QMutexLocker locker(&sMutex);
+    static FacadeFactory *instance = 0;
+    if (!instance) {
+        instance = new FacadeFactory;
+    }
+    return *instance;
+}
+
+QByteArray FacadeFactory::key(const QByteArray &resource, const QByteArray &type)
+{
+    return resource + type;
+}
+
+void FacadeFactory::resetFactory()
+{
+    QMutexLocker locker(&sMutex);
+    mFacadeRegistry.clear();
+}
+
+void FacadeFactory::registerStaticFacades()
+{
+    registerFacade<Akonadi2::ApplicationDomain::AkonadiResource, ResourceFacade>("resourceconfig");
+}
+
+std::shared_ptr<void> FacadeFactory::getFacade(const QByteArray &resource, const QByteArray &instanceIdentifier, const QByteArray &typeName)
+{
+    QMutexLocker locker(&sMutex);
+
+    const QByteArray k = key(resource, typeName);
+    if (!mFacadeRegistry.contains(k)) {
+        Akonadi2::ResourceFactory::load(QString::fromLatin1(resource));
+    }
+
+    if (auto factoryFunction = mFacadeRegistry.value(k)) {
+        return factoryFunction(instanceIdentifier);
+    }
+    qWarning() << "Failed to find facade for resource: " << resource << " and type: " << typeName;
+    return std::shared_ptr<void>();
+}
+
+void FacadeFactory::registerFacade(const QByteArray &resource, const FactoryFunction &customFactoryFunction, const QByteArray typeName)
+{
+    mFacadeRegistry.insert(key(resource, typeName), customFactoryFunction);
+}