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#include "AmdaProvider.h"
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#include "AmdaDefs.h"
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#include "AmdaResultParser.h"
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#include <Data/DataProviderParameters.h>
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#include <Network/NetworkController.h>
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#include <SqpApplication.h>
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#include <Variable/Variable.h>
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#include <QNetworkAccessManager>
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#include <QNetworkReply>
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#include <QTemporaryFile>
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#include <QThread>
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Q_LOGGING_CATEGORY(LOG_AmdaProvider, "AmdaProvider")
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namespace {
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/// URL format for a request on AMDA server. The parameters are as follows:
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/// - %1: start date
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/// - %2: end date
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/// - %3: parameter id
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const auto AMDA_URL_FORMAT = QStringLiteral(
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"http://amda.irap.omp.eu/php/rest/"
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"getParameter.php?startTime=%1&stopTime=%2¶meterID=%3&sampling=60&outputFormat=ASCII&"
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"timeFormat=ISO8601&gzip=0");
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/// Dates format passed in the URL (e.g 2013-09-23T09:00)
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const auto AMDA_TIME_FORMAT = QStringLiteral("yyyy-MM-ddThh:ss");
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/// Formats a time to a date that can be passed in URL
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QString dateFormat(double sqpDateTime) noexcept
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{
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auto dateTime = QDateTime::fromMSecsSinceEpoch(sqpDateTime * 1000.);
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return dateTime.toString(AMDA_TIME_FORMAT);
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}
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} // namespace
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AmdaProvider::AmdaProvider()
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{
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qCDebug(LOG_NetworkController()) << tr("AmdaProvider::AmdaProvider")
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<< QThread::currentThread();
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if (auto app = sqpApp) {
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auto &networkController = app->networkController();
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connect(this, SIGNAL(requestConstructed(QNetworkRequest, QUuid,
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std::function<void(QNetworkReply *, QUuid)>)),
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&networkController,
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SLOT(onProcessRequested(QNetworkRequest, QUuid,
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std::function<void(QNetworkReply *, QUuid)>)));
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connect(&sqpApp->networkController(), SIGNAL(replyDownloadProgress(QUuid, double)), this,
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SIGNAL(dataProvidedProgress(QUuid, double)));
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}
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}
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void AmdaProvider::requestDataLoading(QUuid token, const DataProviderParameters ¶meters)
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{
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// NOTE: Try to use multithread if possible
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const auto times = parameters.m_Times;
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const auto data = parameters.m_Data;
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for (const auto &dateTime : qAsConst(times)) {
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retrieveData(token, dateTime, data);
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}
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}
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void AmdaProvider::requestDataAborting(QUuid identifier)
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{
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if (auto app = sqpApp) {
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auto &networkController = app->networkController();
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networkController.onReplyCanceled(identifier);
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}
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}
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void AmdaProvider::retrieveData(QUuid token, const SqpDateTime &dateTime, const QVariantHash &data)
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{
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// Retrieves product ID from data: if the value is invalid, no request is made
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auto productId = data.value(AMDA_XML_ID_KEY).toString();
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if (productId.isNull()) {
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qCCritical(LOG_AmdaProvider()) << tr("Can't retrieve data: unknown product id");
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return;
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}
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// /////////// //
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// Creates URL //
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// /////////// //
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auto startDate = dateFormat(dateTime.m_TStart);
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auto endDate = dateFormat(dateTime.m_TEnd);
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auto url = QUrl{QString{AMDA_URL_FORMAT}.arg(startDate, endDate, productId)};
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auto tempFile = std::make_shared<QTemporaryFile>();
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// LAMBDA
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auto httpDownloadFinished
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= [this, dateTime, tempFile, token](QNetworkReply *reply, QUuid dataId) noexcept {
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Q_UNUSED(dataId);
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// Don't do anything if the reply was abort
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if (reply->error() != QNetworkReply::OperationCanceledError) {
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if (tempFile) {
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auto replyReadAll = reply->readAll();
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if (!replyReadAll.isEmpty()) {
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tempFile->write(replyReadAll);
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}
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tempFile->close();
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// Parse results file
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if (auto dataSeries = AmdaResultParser::readTxt(tempFile->fileName())) {
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emit dataProvided(token, dataSeries, dateTime);
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}
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else {
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/// @todo ALX : debug
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}
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}
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}
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};
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auto httpFinishedLambda
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= [this, httpDownloadFinished, tempFile](QNetworkReply *reply, QUuid dataId) noexcept {
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// Don't do anything if the reply was abort
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if (reply->error() != QNetworkReply::OperationCanceledError) {
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auto downloadFileUrl = QUrl{QString{reply->readAll()}};
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// Executes request for downloading file //
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// Creates destination file
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if (tempFile->open()) {
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// Executes request
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emit requestConstructed(QNetworkRequest{downloadFileUrl}, dataId,
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httpDownloadFinished);
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}
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}
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};
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// //////////////// //
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// Executes request //
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// //////////////// //
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emit requestConstructed(QNetworkRequest{url}, token, httpFinishedLambda);
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}
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