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/*
* Copyright (C) 2014 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "resourcefactory.h"
#include "facade.h"
#include "entitybuffer.h"
#include "dummycalendar_generated.h"
#include "metadata_generated.h"
#include <QUuid>
static std::string createEvent()
{
static const size_t attachmentSize = 1024*2; // 2KB
static uint8_t rawData[attachmentSize];
static flatbuffers::FlatBufferBuilder fbb;
fbb.Clear();
{
auto summary = fbb.CreateString("summary");
auto data = fbb.CreateUninitializedVector<uint8_t>(attachmentSize);
DummyCalendar::DummyEventBuilder eventBuilder(fbb);
eventBuilder.add_summary(summary);
eventBuilder.add_attachment(data);
auto eventLocation = eventBuilder.Finish();
DummyCalendar::FinishDummyEventBuffer(fbb, eventLocation);
memcpy((void*)DummyCalendar::GetDummyEvent(fbb.GetBufferPointer())->attachment()->Data(), rawData, attachmentSize);
}
return std::string(reinterpret_cast<const char *>(fbb.GetBufferPointer()), fbb.GetSize());
}
QMap<QString, QString> populate()
{
QMap<QString, QString> content;
for (int i = 0; i < 2; i++) {
auto event = createEvent();
content.insert(QString("key%1").arg(i), QString::fromStdString(event));
}
return content;
}
static QMap<QString, QString> s_dataSource = populate();
DummyResource::DummyResource()
: Akonadi2::Resource()
{
}
void findByRemoteId(QSharedPointer<Akonadi2::Storage> storage, const QString &rid, std::function<void(void *keyValue, int keySize, void *dataValue, int dataSize)> callback)
{
//TODO lookup in rid index instead of doing a full scan
const std::string ridString = rid.toStdString();
storage->scan("", [&](void *keyValue, int keySize, void *dataValue, int dataSize) -> bool {
if (QByteArray::fromRawData(static_cast<char*>(keyValue), keySize).startsWith("__internal")) {
return true;
}
Akonadi2::EntityBuffer::extractResourceBuffer(dataValue, dataSize, [&](const flatbuffers::Vector<uint8_t> *buffer) {
flatbuffers::Verifier verifier(buffer->Data(), buffer->size());
if (DummyCalendar::VerifyDummyEventBuffer(verifier)) {
DummyCalendar::DummyEvent const *resourceBuffer = DummyCalendar::GetDummyEvent(buffer->Data());
if (resourceBuffer && resourceBuffer->remoteId()) {
if (std::string(resourceBuffer->remoteId()->c_str(), resourceBuffer->remoteId()->size()) == ridString) {
callback(keyValue, keySize, dataValue, dataSize);
}
}
}
});
return true;
});
}
Async::Job<void> DummyResource::synchronizeWithSource(Akonadi2::Pipeline *pipeline)
{
return Async::start<void>([this, pipeline](Async::Future<void> &f) {
//TODO use a read-only transaction during the complete sync to sync against a defined revision
auto storage = QSharedPointer<Akonadi2::Storage>::create(Akonadi2::Store::storageLocation(), "org.kde.dummy");
for (auto it = s_dataSource.constBegin(); it != s_dataSource.constEnd(); it++) {
bool isNew = true;
if (storage->exists()) {
findByRemoteId(storage, it.key(), [&](void *keyValue, int keySize, void *dataValue, int dataSize) {
isNew = false;
});
}
if (isNew) {
m_fbb.Clear();
const QByteArray data = it.value().toUtf8();
auto eventBuffer = DummyCalendar::GetDummyEvent(data.data());
//Map the source format to the buffer format (which happens to be an exact copy here)
auto summary = m_fbb.CreateString(eventBuffer->summary()->c_str());
auto rid = m_fbb.CreateString(it.key().toStdString().c_str());
auto description = m_fbb.CreateString(it.key().toStdString().c_str());
static uint8_t rawData[100];
auto attachment = m_fbb.CreateVector(rawData, 100);
auto builder = DummyCalendar::DummyEventBuilder(m_fbb);
builder.add_summary(summary);
builder.add_remoteId(rid);
builder.add_description(description);
builder.add_attachment(attachment);
auto buffer = builder.Finish();
DummyCalendar::FinishDummyEventBuffer(m_fbb, buffer);
//TODO toRFC4122 would probably be more efficient, but results in non-printable keys.
const auto key = QUuid::createUuid().toString().toUtf8();
pipeline->newEntity(key, m_fbb.GetBufferPointer(), m_fbb.GetSize());
} else { //modification
//TODO diff and create modification if necessary
}
}
//TODO find items to remove
f.setFinished();
});
}
void DummyResource::processCommand(int commandId, const QByteArray &data, uint size, Akonadi2::Pipeline *pipeline)
{
Q_UNUSED(commandId)
Q_UNUSED(data)
Q_UNUSED(size)
//TODO reallly process the commands :)
auto builder = DummyCalendar::DummyEventBuilder(m_fbb);
builder .add_summary(m_fbb.CreateString("summary summary!"));
auto buffer = builder.Finish();
DummyCalendar::FinishDummyEventBuffer(m_fbb, buffer);
pipeline->newEntity("fakekey", m_fbb.GetBufferPointer(), m_fbb.GetSize());
m_fbb.Clear();
}
DummyResourceFactory::DummyResourceFactory(QObject *parent)
: Akonadi2::ResourceFactory(parent)
{
}
Akonadi2::Resource *DummyResourceFactory::createResource()
{
return new DummyResource();
}
void DummyResourceFactory::registerFacades(Akonadi2::FacadeFactory &factory)
{
factory.registerFacade<Akonadi2::Domain::Event, DummyResourceFacade>(PLUGIN_NAME);
}
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