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/*
* 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 "clientapi.h"
#include <QtConcurrent/QtConcurrentRun>
#include <QTimer>
#include <QEventLoop>
#include <QAbstractItemModel>
#include <QDir>
#include <functional>
#include <memory>
#include "resourceaccess.h"
#include "commands.h"
#include "resourcefacade.h"
#include "definitions.h"
#include "resourceconfig.h"
#include "facadefactory.h"
#include "modelresult.h"
#include "storage.h"
#include "log.h"
namespace Akonadi2
{
QString Store::storageLocation()
{
return Akonadi2::storageLocation();
}
QByteArray Store::resourceName(const QByteArray &instanceIdentifier)
{
return Akonadi2::resourceName(instanceIdentifier);
}
static QList<QByteArray> getResources(const QList<QByteArray> &resourceFilter, const QByteArray &type)
{
//Return the global resource (signified by an empty name) for types that don't eblong to a specific resource
if (type == "akonadiresource") {
return QList<QByteArray>() << "";
}
QList<QByteArray> resources;
const auto configuredResources = ResourceConfig::getResources();
if (resourceFilter.isEmpty()) {
for (const auto &res : configuredResources.keys()) {
//TODO filter by entity type
resources << res;
}
} else {
for (const auto &res : resourceFilter) {
if (configuredResources.contains(res)) {
resources << res;
} else {
qWarning() << "Resource is not existing: " << res;
}
}
}
Trace() << "Found resources: " << resources;
return resources;
}
template <class DomainType>
QSharedPointer<QAbstractItemModel> Store::loadModel(Query query)
{
Trace() << "Query: ";
Trace() << " Requested: " << query.requestedProperties;
Trace() << " Filter: " << query.propertyFilter;
Trace() << " Parent: " << query.parentProperty;
Trace() << " Ids: " << query.ids;
Trace() << " IsLive: " << query.liveQuery;
auto model = QSharedPointer<ModelResult<DomainType, typename DomainType::Ptr> >::create(query, query.requestedProperties);
//* Client defines lifetime of model
//* The model lifetime defines the duration of live-queries
//* The facade needs to life for the duration of any calls being made (assuming we get rid of any internal callbacks
//* The emitter needs to live or the duration of query (respectively, the model)
//* The result provider needs to live for as long as results are provided (until the last thread exits).
// Query all resources and aggregate results
auto resources = getResources(query.resources, ApplicationDomain::getTypeName<DomainType>());
auto aggregatingEmitter = AggregatingResultEmitter<typename DomainType::Ptr>::Ptr::create();
model->setEmitter(aggregatingEmitter);
KAsync::iterate(resources)
.template each<void, QByteArray>([query, aggregatingEmitter](const QByteArray &resource, KAsync::Future<void> &future) {
auto facade = FacadeFactory::instance().getFacade<DomainType>(resourceName(resource), resource);
if (facade) {
Trace() << "Trying to fetch from resource " << resource;
auto result = facade->load(query);
aggregatingEmitter->addEmitter(result.second);
result.first.template then<void>([&future](){future.setFinished();}).exec();
} else {
Trace() << "Couldn' find a facade for " << resource;
//Ignore the error and carry on
future.setFinished();
}
}).exec();
model->fetchMore(QModelIndex());
return model;
}
template <class DomainType>
static std::shared_ptr<StoreFacade<DomainType> > getFacade(const QByteArray &resourceInstanceIdentifier)
{
if (auto facade = FacadeFactory::instance().getFacade<DomainType>(resourceName(resourceInstanceIdentifier), resourceInstanceIdentifier)) {
return facade;
}
return std::make_shared<NullFacade<DomainType> >();
}
template <class DomainType>
KAsync::Job<void> Store::create(const DomainType &domainObject) {
//Potentially move to separate thread as well
auto facade = getFacade<DomainType>(domainObject.resourceInstanceIdentifier());
return facade->create(domainObject).template then<void>([facade](){}, [](int errorCode, const QString &error) {
Warning() << "Failed to create";
});
}
template <class DomainType>
KAsync::Job<void> Store::modify(const DomainType &domainObject)
{
//Potentially move to separate thread as well
auto facade = getFacade<DomainType>(domainObject.resourceInstanceIdentifier());
return facade->modify(domainObject).template then<void>([facade](){}, [](int errorCode, const QString &error) {
Warning() << "Failed to modify";
});
}
template <class DomainType>
KAsync::Job<void> Store::remove(const DomainType &domainObject)
{
//Potentially move to separate thread as well
auto facade = getFacade<DomainType>(domainObject.resourceInstanceIdentifier());
return facade->remove(domainObject).template then<void>([facade](){}, [](int errorCode, const QString &error) {
Warning() << "Failed to remove";
});
}
KAsync::Job<void> Store::shutdown(const QByteArray &identifier)
{
Trace() << "shutdown " << identifier;
return ResourceAccess::connectToServer(identifier).then<void, QSharedPointer<QLocalSocket>>([identifier](QSharedPointer<QLocalSocket> socket, KAsync::Future<void> &future) {
//We can't currently reuse the socket
socket->close();
auto resourceAccess = QSharedPointer<Akonadi2::ResourceAccess>::create(identifier);
resourceAccess->open();
resourceAccess->sendCommand(Akonadi2::Commands::ShutdownCommand).then<void>([&future, resourceAccess]() {
Trace() << "Shutdown complete";
future.setFinished();
}).exec();
},
[](int, const QString &) {
Trace() << "Resource is already closed.";
//Resource isn't started, nothing to shutdown
})
//FIXME JOBAPI this is only required because we don't care about the return value of connectToServer
.template then<void>([](){});
}
KAsync::Job<void> Store::start(const QByteArray &identifier)
{
Trace() << "start " << identifier;
auto resourceAccess = QSharedPointer<Akonadi2::ResourceAccess>::create(identifier);
resourceAccess->open();
return resourceAccess->sendCommand(Akonadi2::Commands::PingCommand).then<void>([resourceAccess]() {
Trace() << "Start complete";
});
}
void Store::removeFromDisk(const QByteArray &identifier)
{
//TODO By calling the resource executable with a --remove option instead
//we can ensure that no other resource process is running at the same time
QDir dir(Akonadi2::storageLocation());
for (const auto &folder : dir.entryList(QStringList() << identifier + "*")) {
Akonadi2::Storage(Akonadi2::storageLocation(), folder, Akonadi2::Storage::ReadWrite).removeFromDisk();
}
}
KAsync::Job<void> Store::synchronize(const Akonadi2::Query &query)
{
Trace() << "synchronize" << query.resources;
return KAsync::iterate(query.resources)
.template each<void, QByteArray>([query](const QByteArray &resource, KAsync::Future<void> &future) {
Trace() << "Synchronizing " << resource;
auto resourceAccess = QSharedPointer<Akonadi2::ResourceAccess>::create(resource);
resourceAccess->open();
resourceAccess->synchronizeResource(query.syncOnDemand, query.processAll).then<void>([&future, resourceAccess]() {
future.setFinished();
}).exec();
})
//FIXME JOBAPI this is only required because we don't care about the return value of each (and each shouldn't even have a return value)
.template then<void>([](){});
}
#define REGISTER_TYPE(T) template KAsync::Job<void> Store::remove<T>(const T &domainObject); \
template KAsync::Job<void> Store::create<T>(const T &domainObject); \
template KAsync::Job<void> Store::modify<T>(const T &domainObject); \
template QSharedPointer<QAbstractItemModel> Store::loadModel<T>(Query query); \
REGISTER_TYPE(ApplicationDomain::Event);
REGISTER_TYPE(ApplicationDomain::Mail);
REGISTER_TYPE(ApplicationDomain::Folder);
REGISTER_TYPE(ApplicationDomain::AkonadiResource);
} // namespace Akonadi2
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