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#include "AmdaResultParser.h"
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#include "AmdaResultParserHelper.h"
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#include <QFile>
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#include <cmath>
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Q_LOGGING_CATEGORY(LOG_AmdaResultParser, "AmdaResultParser")
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namespace {
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/// Message in result file when the file was not found on server
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const auto FILE_NOT_FOUND_MESSAGE = QStringLiteral("Not Found");
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/// Checks if a line is a comment line
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bool isCommentLine(const QString &line)
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{
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return line.startsWith("#");
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}
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/**
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* Creates helper that will be used to read AMDA file, according to the type passed as parameter
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* @param valueType the type of values expected in the AMDA file (scalars, vectors, spectrograms...)
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* @return the helper created
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*/
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std::unique_ptr<IAmdaResultParserHelper> createHelper(AmdaResultParser::ValueType valueType)
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{
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switch (valueType) {
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case AmdaResultParser::ValueType::SCALAR:
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return std::make_unique<ScalarParserHelper>();
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case AmdaResultParser::ValueType::VECTOR:
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return std::make_unique<VectorParserHelper>();
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case AmdaResultParser::ValueType::UNKNOWN:
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// Invalid case
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break;
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}
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// Invalid cases
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qCCritical(LOG_AmdaResultParser())
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<< QObject::tr("Can't create helper to read result file: unsupported type");
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return nullptr;
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}
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/**
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* Reads properties of the stream passed as parameter
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* @param helper the helper used to read properties line by line
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* @param stream the stream to read
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*/
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void readProperties(IAmdaResultParserHelper &helper, QTextStream &stream)
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{
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// Searches properties in the comment lines (as long as the reading has not reached the data)
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// AMDA V2: while (stream.readLineInto(&line) && !line.contains(DATA_HEADER_REGEX)) {
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QString line{};
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while (stream.readLineInto(&line) && isCommentLine(line)) {
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helper.readPropertyLine(line);
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}
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}
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/**
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* Reads results of the stream passed as parameter
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* @param helper the helper used to read results line by line
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* @param stream the stream to read
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*/
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void readResults(IAmdaResultParserHelper &helper, QTextStream &stream)
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{
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QString line{};
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// Skip comment lines
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while (stream.readLineInto(&line) && isCommentLine(line)) {
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}
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if (!stream.atEnd()) {
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do {
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helper.readResultLine(line);
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} while (stream.readLineInto(&line));
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}
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}
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} // namespace
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std::shared_ptr<IDataSeries> AmdaResultParser::readTxt(const QString &filePath,
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ValueType valueType) noexcept
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{
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if (valueType == ValueType::UNKNOWN) {
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qCCritical(LOG_AmdaResultParser())
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<< QObject::tr("Can't retrieve AMDA data: the type of values to be read is unknown");
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return nullptr;
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}
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QFile file{filePath};
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if (!file.open(QFile::ReadOnly | QIODevice::Text)) {
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qCCritical(LOG_AmdaResultParser())
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<< QObject::tr("Can't retrieve AMDA data from file %1: %2")
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.arg(filePath, file.errorString());
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return nullptr;
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}
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QTextStream stream{&file};
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// Checks if the file was found on the server
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auto firstLine = stream.readLine();
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if (firstLine.compare(FILE_NOT_FOUND_MESSAGE) == 0) {
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qCCritical(LOG_AmdaResultParser())
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<< QObject::tr("Can't retrieve AMDA data from file %1: file was not found on server")
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.arg(filePath);
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return nullptr;
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}
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auto helper = createHelper(valueType);
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Q_ASSERT(helper != nullptr);
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// Reads header file to retrieve properties
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stream.seek(0); // returns to the beginning of the file
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readProperties(*helper, stream);
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// Checks properties
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if (helper->checkProperties()) {
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// Reads results
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// AMDA V2: remove line
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stream.seek(0); // returns to the beginning of the file
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readResults(*helper, stream);
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// Creates data series
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return helper->createSeries();
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}
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else {
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return nullptr;
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}
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}
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