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Add impletation for displaying data that are already in cache when...
Add impletation for displaying data that are already in cache when acquisition is requested

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NetworkController.cpp
134 lines | 4.7 KiB | text/x-c | CppLexer
/ core / src / Network / NetworkController.cpp
#include "Network/NetworkController.h"
#include <QMutex>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QReadWriteLock>
#include <QThread>
#include <unordered_map>
Q_LOGGING_CATEGORY(LOG_NetworkController, "NetworkController")
struct NetworkController::NetworkControllerPrivate {
explicit NetworkControllerPrivate(NetworkController *parent) : m_WorkingMutex{} {}
void lockRead() { m_Lock.lockForRead(); }
void lockWrite() { m_Lock.lockForWrite(); }
void unlock() { m_Lock.unlock(); }
QMutex m_WorkingMutex;
QReadWriteLock m_Lock;
std::unordered_map<QNetworkReply *, QUuid> m_NetworkReplyToVariableId;
std::unique_ptr<QNetworkAccessManager> m_AccessManager{nullptr};
};
NetworkController::NetworkController(QObject *parent)
: QObject(parent), impl{spimpl::make_unique_impl<NetworkControllerPrivate>(this)}
{
}
void NetworkController::onProcessRequested(const QNetworkRequest &request, QUuid identifier,
std::function<void(QNetworkReply *, QUuid)> callback)
{
qCDebug(LOG_NetworkController()) << tr("NetworkController registered")
<< QThread::currentThread()->objectName();
auto reply = impl->m_AccessManager->get(request);
// Store the couple reply id
impl->lockWrite();
impl->m_NetworkReplyToVariableId[reply] = identifier;
impl->unlock();
auto onReplyFinished = [reply, this, identifier, callback]() {
qCDebug(LOG_NetworkController()) << tr("NetworkController onReplyFinished")
<< QThread::currentThread() << reply;
impl->lockRead();
auto it = impl->m_NetworkReplyToVariableId.find(reply);
impl->unlock();
if (it != impl->m_NetworkReplyToVariableId.cend()) {
impl->lockWrite();
impl->m_NetworkReplyToVariableId.erase(reply);
impl->unlock();
// Deletes reply
callback(reply, identifier);
reply->deleteLater();
emit this->replyDownloadProgress(identifier, 0);
}
qCDebug(LOG_NetworkController()) << tr("NetworkController onReplyFinished END")
<< QThread::currentThread() << reply;
};
auto onReplyProgress = [reply, this](qint64 bytesRead, qint64 totalBytes) {
double progress = (bytesRead * 100.0) / totalBytes;
qCDebug(LOG_NetworkController()) << tr("NetworkController onReplyProgress") << progress
<< QThread::currentThread() << reply;
impl->lockRead();
auto it = impl->m_NetworkReplyToVariableId.find(reply);
impl->unlock();
if (it != impl->m_NetworkReplyToVariableId.cend()) {
emit this->replyDownloadProgress(it->second, progress);
}
qCDebug(LOG_NetworkController()) << tr("NetworkController onReplyProgress END")
<< QThread::currentThread() << reply;
};
connect(reply, &QNetworkReply::finished, this, onReplyFinished);
connect(reply, &QNetworkReply::downloadProgress, this, onReplyProgress);
qCDebug(LOG_NetworkController()) << tr("NetworkController registered END")
<< QThread::currentThread()->objectName() << reply;
}
void NetworkController::initialize()
{
qCDebug(LOG_NetworkController()) << tr("NetworkController init") << QThread::currentThread();
impl->m_WorkingMutex.lock();
impl->m_AccessManager = std::make_unique<QNetworkAccessManager>();
auto onReplyErrors = [this](QNetworkReply *reply, const QList<QSslError> &errors) {
qCCritical(LOG_NetworkController()) << tr("NetworkAcessManager errors: ") << errors;
};
connect(impl->m_AccessManager.get(), &QNetworkAccessManager::sslErrors, this, onReplyErrors);
qCDebug(LOG_NetworkController()) << tr("NetworkController init END");
}
void NetworkController::finalize()
{
impl->m_WorkingMutex.unlock();
}
void NetworkController::onReplyCanceled(QUuid identifier)
{
auto findReply = [identifier](const auto &entry) { return identifier == entry.second; };
qCDebug(LOG_NetworkController()) << tr("NetworkController onReplyCanceled")
<< QThread::currentThread();
impl->lockRead();
auto end = impl->m_NetworkReplyToVariableId.cend();
auto it = std::find_if(impl->m_NetworkReplyToVariableId.cbegin(), end, findReply);
impl->unlock();
if (it != end) {
it->first->abort();
}
qCDebug(LOG_NetworkController()) << tr("NetworkController onReplyCanceled END")
<< QThread::currentThread();
}
void NetworkController::waitForFinish()
{
QMutexLocker locker{&impl->m_WorkingMutex};
}