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Update Variable impl for v5
Update Variable impl for v5

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VariableController.cpp
276 lines | 9.9 KiB | text/x-c | CppLexer
/ core / src / Variable / VariableController.cpp
#include <Variable/Variable.h>
#include <Variable/VariableCacheController.h>
#include <Variable/VariableController.h>
#include <Variable/VariableModel.h>
#include <Data/DataProviderParameters.h>
#include <Data/IDataProvider.h>
#include <Data/IDataSeries.h>
#include <Time/TimeController.h>
#include <QMutex>
#include <QThread>
#include <QUuid>
#include <QtCore/QItemSelectionModel>
#include <unordered_map>
Q_LOGGING_CATEGORY(LOG_VariableController, "VariableController")
struct VariableController::VariableControllerPrivate {
explicit VariableControllerPrivate(VariableController *parent)
: m_WorkingMutex{},
m_VariableModel{new VariableModel{parent}},
m_VariableSelectionModel{new QItemSelectionModel{m_VariableModel, parent}},
m_VariableCacheController{std::make_unique<VariableCacheController>()}
{
}
QVector<SqpRange> provideNotInCacheDateTimeList(std::shared_ptr<Variable> variable,
const SqpRange &dateTime);
QMutex m_WorkingMutex;
/// Variable model. The VariableController has the ownership
VariableModel *m_VariableModel;
QItemSelectionModel *m_VariableSelectionModel;
TimeController *m_TimeController{nullptr};
std::unique_ptr<VariableCacheController> m_VariableCacheController;
std::unordered_map<std::shared_ptr<Variable>, std::shared_ptr<IDataProvider> >
m_VariableToProviderMap;
std::unordered_map<std::shared_ptr<Variable>, QUuid> m_VariableToIdentifierMap;
};
VariableController::VariableController(QObject *parent)
: QObject{parent}, impl{spimpl::make_unique_impl<VariableControllerPrivate>(this)}
{
qCDebug(LOG_VariableController()) << tr("VariableController construction")
<< QThread::currentThread();
connect(impl->m_VariableModel, &VariableModel::abortProgessRequested, this,
&VariableController::onAbortProgressRequested);
}
VariableController::~VariableController()
{
qCDebug(LOG_VariableController()) << tr("VariableController destruction")
<< QThread::currentThread();
this->waitForFinish();
}
VariableModel *VariableController::variableModel() noexcept
{
return impl->m_VariableModel;
}
QItemSelectionModel *VariableController::variableSelectionModel() noexcept
{
return impl->m_VariableSelectionModel;
}
void VariableController::setTimeController(TimeController *timeController) noexcept
{
impl->m_TimeController = timeController;
}
void VariableController::deleteVariable(std::shared_ptr<Variable> variable) noexcept
{
if (!variable) {
qCCritical(LOG_VariableController()) << "Can't delete variable: variable is null";
return;
}
// Spreads in SciQlop that the variable will be deleted, so that potential receivers can
// make some treatments before the deletion
emit variableAboutToBeDeleted(variable);
// Deletes identifier
impl->m_VariableToIdentifierMap.erase(variable);
// Deletes provider
auto nbProvidersDeleted = impl->m_VariableToProviderMap.erase(variable);
qCDebug(LOG_VariableController())
<< tr("Number of providers deleted for variable %1: %2")
.arg(variable->name(), QString::number(nbProvidersDeleted));
// Clears cache
impl->m_VariableCacheController->clear(variable);
// Deletes from model
impl->m_VariableModel->deleteVariable(variable);
}
void VariableController::deleteVariables(
const QVector<std::shared_ptr<Variable> > &variables) noexcept
{
for (auto variable : qAsConst(variables)) {
deleteVariable(variable);
}
}
void VariableController::abortProgress(std::shared_ptr<Variable> variable)
{
}
void VariableController::createVariable(const QString &name, const QVariantHash &metadata,
std::shared_ptr<IDataProvider> provider) noexcept
{
if (!impl->m_TimeController) {
qCCritical(LOG_VariableController())
<< tr("Impossible to create variable: The time controller is null");
return;
}
auto dateTime = impl->m_TimeController->dateTime();
if (auto newVariable = impl->m_VariableModel->createVariable(name, dateTime, metadata)) {
auto identifier = QUuid::createUuid();
// store the provider
impl->m_VariableToProviderMap[newVariable] = provider;
impl->m_VariableToIdentifierMap[newVariable] = identifier;
auto addDateTimeAcquired = [ this, varW = std::weak_ptr<Variable>{newVariable} ](
QUuid identifier, auto dataSeriesAcquired, auto dateTimeToPutInCache)
{
if (auto variable = varW.lock()) {
auto varIdentifier = impl->m_VariableToIdentifierMap.at(variable);
if (varIdentifier == identifier) {
impl->m_VariableCacheController->addDateTime(variable, dateTimeToPutInCache);
variable->setDataSeries(dataSeriesAcquired);
emit variable->updated();
}
}
};
connect(provider.get(), &IDataProvider::dataProvided, addDateTimeAcquired);
connect(provider.get(), &IDataProvider::dataProvidedProgress, this,
&VariableController::onVariableRetrieveDataInProgress);
this->onRequestDataLoading(newVariable, dateTime);
}
}
void VariableController::onDateTimeOnSelection(const SqpRange &dateTime)
{
qCDebug(LOG_VariableController()) << "VariableController::onDateTimeOnSelection"
<< QThread::currentThread()->objectName();
auto selectedRows = impl->m_VariableSelectionModel->selectedRows();
for (const auto &selectedRow : qAsConst(selectedRows)) {
if (auto selectedVariable = impl->m_VariableModel->variable(selectedRow.row())) {
selectedVariable->setDateTime(dateTime);
this->onRequestDataLoading(selectedVariable, dateTime);
// notify that rescale operation has to be done
emit rangeChanged(selectedVariable, dateTime);
}
}
}
void VariableController::onVariableRetrieveDataInProgress(QUuid identifier, double progress)
{
auto findReply = [identifier](const auto &entry) { return identifier == entry.second; };
auto end = impl->m_VariableToIdentifierMap.cend();
auto it = std::find_if(impl->m_VariableToIdentifierMap.cbegin(), end, findReply);
if (it != end) {
impl->m_VariableModel->setDataProgress(it->first, progress);
}
}
void VariableController::onAbortProgressRequested(std::shared_ptr<Variable> variable)
{
qCDebug(LOG_VariableController()) << "TORM: VariableController::onAbortProgressRequested"
<< QThread::currentThread()->objectName();
auto it = impl->m_VariableToIdentifierMap.find(variable);
if (it != impl->m_VariableToIdentifierMap.cend()) {
impl->m_VariableToProviderMap.at(variable)->requestDataAborting(it->second);
}
else {
qCWarning(LOG_VariableController())
<< tr("Aborting progression of inexistant variable detected !!!")
<< QThread::currentThread()->objectName();
}
}
void VariableController::onRequestDataLoading(std::shared_ptr<Variable> variable,
const SqpRange &dateTime)
{
qCDebug(LOG_VariableController()) << "VariableController::onRequestDataLoading"
<< QThread::currentThread()->objectName();
// we want to load data of the variable for the dateTime.
// First we check if the cache contains some of them.
// For the other, we ask the provider to give them.
if (variable) {
auto dateTimeListNotInCache
= impl->m_VariableCacheController->provideNotInCacheDateTimeList(variable, dateTime);
if (!dateTimeListNotInCache.empty()) {
// Ask the provider for each data on the dateTimeListNotInCache
auto identifier = impl->m_VariableToIdentifierMap.at(variable);
impl->m_VariableToProviderMap.at(variable)->requestDataLoading(
identifier,
DataProviderParameters{std::move(dateTimeListNotInCache), variable->metadata()});
}
else {
emit variable->updated();
}
}
else {
qCCritical(LOG_VariableController()) << tr("Impossible to load data of a variable null");
}
}
void VariableController::initialize()
{
qCDebug(LOG_VariableController()) << tr("VariableController init") << QThread::currentThread();
impl->m_WorkingMutex.lock();
qCDebug(LOG_VariableController()) << tr("VariableController init END");
}
void VariableController::finalize()
{
impl->m_WorkingMutex.unlock();
}
void VariableController::waitForFinish()
{
QMutexLocker locker{&impl->m_WorkingMutex};
}
QVector<SqpRange> VariableController::VariableControllerPrivate::provideNotInCacheDateTimeList(
std::shared_ptr<Variable> variable, const SqpRange &dateTime)
{
auto notInCache = QVector<SqpRange>{};
if (!variable->contains(dateTime)) {
auto vDateTime = variable->dateTime();
if (dateTime.m_TEnd <= vDateTime.m_TStart || dateTime.m_TStart >= vDateTime.m_TEnd) {
notInCache << dateTime;
}
else if (dateTime.m_TStart < vDateTime.m_TStart && dateTime.m_TEnd <= vDateTime.m_TEnd) {
notInCache << SqpRange{dateTime.m_TStart, vDateTime.m_TStart};
}
else if (dateTime.m_TStart < vDateTime.m_TStart && dateTime.m_TEnd > vDateTime.m_TEnd) {
notInCache << SqpRange{dateTime.m_TStart, vDateTime.m_TStart}
<< SqpRange{vDateTime.m_TEnd, dateTime.m_TStart};
}
else if (dateTime.m_TStart < vDateTime.m_TEnd) {
notInCache << SqpRange{vDateTime.m_TEnd, dateTime.m_TStart};
}
else {
qCCritical(LOG_VariableController()) << tr("Detection of unknown case.")
<< QThread::currentThread();
}
}
return notInCache;
}