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#include "DataSource/DataSourceController.h"
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#include "DataSource/DataSourceItem.h"
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#include <Data/IDataProvider.h>
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#include <QMutex>
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#include <QThread>
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#include <QDataStream>
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#include <QDir>
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#include <QStandardPaths>
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Q_LOGGING_CATEGORY(LOG_DataSourceController, "DataSourceController")
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class DataSourceController::DataSourceControllerPrivate {
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public:
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QMutex m_WorkingMutex;
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/// Data sources registered
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QHash<QUuid, QString> m_DataSources;
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/// Data sources structures
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std::map<QUuid, std::unique_ptr<DataSourceItem> > m_DataSourceItems;
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/// Data providers registered
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/// @remarks Data providers are stored as shared_ptr as they can be sent to a variable and
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/// continue to live without necessarily the data source controller
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std::map<QUuid, std::shared_ptr<IDataProvider> > m_DataProviders;
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// Search for the first datasource item matching the specified data
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DataSourceItem *findDataSourceItem(const QVariantHash &data)
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{
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DataSourceItem *sourceItem = nullptr;
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for (const auto &item : m_DataSourceItems) {
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sourceItem = item.second->findItem(data, true);
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if (sourceItem) {
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break;
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}
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}
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return sourceItem;
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}
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};
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DataSourceController::DataSourceController(QObject *parent)
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: impl{spimpl::make_unique_impl<DataSourceControllerPrivate>()}
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{
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qCDebug(LOG_DataSourceController()) << tr("DataSourceController construction")
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<< QThread::currentThread();
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}
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DataSourceController::~DataSourceController()
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{
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qCDebug(LOG_DataSourceController()) << tr("DataSourceController destruction")
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<< QThread::currentThread();
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this->waitForFinish();
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}
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QUuid DataSourceController::registerDataSource(const QString &dataSourceName) noexcept
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{
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auto dataSourceUid = QUuid::createUuid();
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impl->m_DataSources.insert(dataSourceUid, dataSourceName);
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return dataSourceUid;
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}
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void DataSourceController::setDataSourceItem(
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const QUuid &dataSourceUid, std::unique_ptr<DataSourceItem> dataSourceItem) noexcept
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{
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if (!dataSourceItem) {
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qCWarning(LOG_DataSourceController())
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<< tr("Data source item can't be registered (null item)");
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return;
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}
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if (impl->m_DataSources.contains(dataSourceUid)) {
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// The data provider is implicitly converted to a shared_ptr
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impl->m_DataSourceItems.insert(std::make_pair(dataSourceUid, std::move(dataSourceItem)));
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// Retrieves the data source item to emit the signal with it
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auto it = impl->m_DataSourceItems.find(dataSourceUid);
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if (it != impl->m_DataSourceItems.end()) {
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emit dataSourceItemSet(it->second.get());
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}
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}
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else {
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qCWarning(LOG_DataSourceController()) << tr("Can't set data source item for uid %1 : no "
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"data source has been registered with the uid")
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.arg(dataSourceUid.toString());
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}
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}
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void DataSourceController::setDataProvider(const QUuid &dataSourceUid,
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std::unique_ptr<IDataProvider> dataProvider) noexcept
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{
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if (impl->m_DataSources.contains(dataSourceUid)) {
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impl->m_DataProviders.insert(std::make_pair(dataSourceUid, std::move(dataProvider)));
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}
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else {
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qCWarning(LOG_DataSourceController()) << tr("Can't set data provider for uid %1 : no data "
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"source has been registered with the uid")
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.arg(dataSourceUid.toString());
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}
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}
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void DataSourceController::loadProductItem(const QUuid &dataSourceUid,
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const DataSourceItem &productItem) noexcept
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{
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if (productItem.type() == DataSourceItemType::PRODUCT
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|| productItem.type() == DataSourceItemType::COMPONENT) {
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/// Retrieves the data provider of the data source (if any)
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auto it = impl->m_DataProviders.find(dataSourceUid);
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auto dataProvider = (it != impl->m_DataProviders.end()) ? it->second : nullptr;
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emit variableCreationRequested(productItem.name(), productItem.data(), dataProvider);
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}
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else {
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qCWarning(LOG_DataSourceController()) << tr("Can't load an item that is not a product");
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}
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}
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QByteArray DataSourceController::mimeDataForProductsData(const QVariantList &productsData)
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{
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QByteArray encodedData;
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QDataStream stream{&encodedData, QIODevice::WriteOnly};
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stream << productsData;
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return encodedData;
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}
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QVariantList DataSourceController::productsDataForMimeData(const QByteArray &mimeData)
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{
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QDataStream stream{mimeData};
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QVariantList productList;
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stream >> productList;
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return productList;
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}
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void DataSourceController::initialize()
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{
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qCDebug(LOG_DataSourceController()) << tr("DataSourceController init")
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<< QThread::currentThread();
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impl->m_WorkingMutex.lock();
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qCDebug(LOG_DataSourceController()) << tr("DataSourceController init END");
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}
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void DataSourceController::finalize()
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{
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impl->m_WorkingMutex.unlock();
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}
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void DataSourceController::requestVariable(const QVariantHash &productData)
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{
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auto sourceItem = impl->findDataSourceItem(productData);
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if (sourceItem) {
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auto sourceName = sourceItem->rootItem().name();
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auto sourceId = impl->m_DataSources.key(sourceName);
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loadProductItem(sourceId, *sourceItem);
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}
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else {
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qCWarning(LOG_DataSourceController()) << tr("requestVariable, product data not found");
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}
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}
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void DataSourceController::waitForFinish()
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{
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QMutexLocker locker{&impl->m_WorkingMutex};
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}
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