AmdaResultParser.cpp
132 lines
| 4.0 KiB
| text/x-c
|
CppLexer
Alexandre Leroux
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r351 | #include "AmdaResultParser.h" | ||
| #include <Data/ScalarSeries.h> | ||||
| #include <QDateTime> | ||||
| #include <QFile> | ||||
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r362 | #include <QRegularExpression> | ||
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Alexandre Leroux
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r351 | |||
| Q_LOGGING_CATEGORY(LOG_AmdaResultParser, "AmdaResultParser") | ||||
| namespace { | ||||
| /// Format for dates in result files | ||||
| const auto DATE_FORMAT = QStringLiteral("yyyy-MM-ddThh:mm:ss.zzz"); | ||||
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r363 | /// Separator between values in a result line | ||
| const auto RESULT_LINE_SEPARATOR = QRegularExpression{QStringLiteral("\\s+")}; | ||||
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r362 | /// Regex to find unit in a line. Examples of valid lines: | ||
| /// ... - Units : nT - ... | ||||
| /// ... -Units:nT- ... | ||||
| /// ... -Units: m²- ... | ||||
| /// ... - Units : m/s - ... | ||||
| const auto UNIT_REGEX = QRegularExpression{QStringLiteral("-\\s*Units\\s*:\\s*(.+?)\\s*-")}; | ||||
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r363 | /// Converts a string date to a double date | ||
| /// @return a double that represents the date in seconds, NaN if the string date can't be converted | ||||
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r351 | double doubleDate(const QString &stringDate) noexcept | ||
| { | ||||
| auto dateTime = QDateTime::fromString(stringDate, DATE_FORMAT); | ||||
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r363 | return dateTime.isValid() ? (dateTime.toMSecsSinceEpoch() / 1000.) | ||
| : std::numeric_limits<double>::quiet_NaN(); | ||||
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r351 | } | ||
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r362 | /** | ||
| * Reads stream to retrieve x-axis unit | ||||
| * @param stream the stream to read | ||||
| * @return the unit that has been read in the stream, a default unit (time unit with no label) if an | ||||
| * error occured during reading | ||||
| */ | ||||
| Unit readXAxisUnit(QTextStream &stream) | ||||
| { | ||||
| QString line{}; | ||||
| if (stream.readLineInto(&line)) { | ||||
| auto match = UNIT_REGEX.match(line); | ||||
| if (match.hasMatch()) { | ||||
| return Unit{match.captured(1), true}; | ||||
| } | ||||
| else { | ||||
| qCWarning(LOG_AmdaResultParser()) | ||||
| << QObject::tr("Can't read unit: invalid line %1").arg(line); | ||||
| } | ||||
| } | ||||
| else { | ||||
| qCWarning(LOG_AmdaResultParser()) << QObject::tr("Can't read unit: end of file"); | ||||
| } | ||||
| // Error cases | ||||
| return Unit{{}, true}; | ||||
| } | ||||
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r363 | /** | ||
| * Reads stream to retrieve results | ||||
| * @param stream the stream to read | ||||
| * @return the pair of vectors x-axis data/values data that has been read in the stream | ||||
| */ | ||||
| QPair<QVector<double>, QVector<double> > readResults(QTextStream &stream) | ||||
| { | ||||
| auto xData = QVector<double>{}; | ||||
| auto valuesData = QVector<double>{}; | ||||
| QString line{}; | ||||
| while (stream.readLineInto(&line)) { | ||||
| auto lineData = line.split(RESULT_LINE_SEPARATOR, QString::SkipEmptyParts); | ||||
| if (lineData.size() == 2) { | ||||
| // X : the data is converted from date to double (in secs) | ||||
| auto x = doubleDate(lineData.at(0)); | ||||
| // Value | ||||
| bool valueOk; | ||||
| auto value = lineData.at(1).toDouble(&valueOk); | ||||
| // Adds result only if x and value are valid | ||||
| if (!std::isnan(x) && !std::isnan(value) && valueOk) { | ||||
| xData.push_back(x); | ||||
| valuesData.push_back(value); | ||||
| } | ||||
| else { | ||||
| qCWarning(LOG_AmdaResultParser()) | ||||
| << QObject::tr( | ||||
| "Can't retrieve results from line %1: x and/or value are invalid") | ||||
| .arg(line); | ||||
| } | ||||
| } | ||||
| else { | ||||
| qCWarning(LOG_AmdaResultParser()) | ||||
| << QObject::tr("Can't retrieve results from line %1: invalid line").arg(line); | ||||
| } | ||||
| } | ||||
| return qMakePair(std::move(xData), std::move(valuesData)); | ||||
| } | ||||
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r351 | } // namespace | ||
| std::shared_ptr<IDataSeries> AmdaResultParser::readTxt(const QString &filePath) noexcept | ||||
| { | ||||
| QFile file{filePath}; | ||||
| if (!file.open(QFile::ReadOnly | QIODevice::Text)) { | ||||
| qCCritical(LOG_AmdaResultParser()) | ||||
| << QObject::tr("Can't retrieve AMDA data from file %1: %2") | ||||
| .arg(filePath, file.errorString()); | ||||
| return nullptr; | ||||
| } | ||||
| QTextStream stream{&file}; | ||||
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r362 | // Ignore first two lines (comments lines) | ||
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r351 | stream.readLine(); | ||
| stream.readLine(); | ||||
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r362 | // Reads x-axis unit | ||
| auto xAxisUnit = readXAxisUnit(stream); | ||||
| // Reads results | ||||
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r363 | auto results = readResults(stream); | ||
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r351 | |||
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r363 | return std::make_shared<ScalarSeries>(std::move(results.first), std::move(results.second), | ||
| xAxisUnit, Unit{}); | ||||
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r351 | } | ||