File indexing completed on 2024-05-12 05:26:03

 /*
  * Copyright (C) 2016 Christian Mollekopf <mollekopf@kolabsys.com>
  *
  * 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/>.
  */
 #pragma once
 
 #include "domaintypeadaptorfactoryinterface.h"
 #include "applicationdomaintype.h"
 #include "resourceaccess.h"
 #include <QByteArray>
 #include <QMap>
 
 namespace Sink {
 
 /*
  * A context object that can be passed around so each part of the system knows in what context it works.
  *
  * This is necessary because we can't rely on a singleton or thread-local storage since multiple resources can be accessed from the same thread/process.
  */
 struct ResourceContext {
     const QByteArray resourceInstanceIdentifier;
     const QByteArray resourceType;
     QMap<QByteArray, DomainTypeAdaptorFactoryInterface::Ptr> adaptorFactories;
     //TODO prehaps use a weak pointer to not mess up lifetime management
     ResourceAccessInterface::Ptr mResourceAccess;
 
 
     ResourceContext(const QByteArray &identifier, const QByteArray &resourceType_, const QMap<QByteArray, DomainTypeAdaptorFactoryInterface::Ptr> &factories = QMap<QByteArray, DomainTypeAdaptorFactoryInterface::Ptr>())
         : resourceInstanceIdentifier(identifier),
         resourceType(resourceType_),
         adaptorFactories(factories)
     {
     }
 
     QByteArray instanceId() const
     {
         return resourceInstanceIdentifier;
     }
 
     DomainTypeAdaptorFactoryInterface &adaptorFactory(const QByteArray &type) const
     {
         auto factory = adaptorFactories.value(type);
         if (!factory) {
             qFatal("Failed to find a factory for %s", type.constData());
         }
         return *factory;
     }
 
     template<typename DomainType>
     DomainTypeAdaptorFactoryInterface &adaptorFactory()
     {
         return adaptorFactory(ApplicationDomain::getTypeName<DomainType>());
     }
 
     ResourceAccessInterface::Ptr resourceAccess()
     {
         if (!mResourceAccess) {
             mResourceAccess = ResourceAccessFactory::instance().getAccess(resourceInstanceIdentifier, resourceType);
         }
         return mResourceAccess;
     }
 };
 
 }