Method load

src/backend/datasources/MQTTClient.cpp:1186–1373

! Loads from XML. */

  Loads from XML.
*/
bool MQTTClient::load(XmlStreamReader* reader, bool preview) {
	if (!readBasicAttributes(reader))
		return false;

	QString attributeWarning = i18n("Attribute '%1' missing or empty, default value is used");
	QXmlStreamAttributes attribs;
	QString str;

	while (!reader->atEnd()) {
		reader->readNext();
		if (reader->isEndElement() && reader->name() == QLatin1String("MQTTClient"))
			break;

		if (!reader->isStartElement())
			continue;

		if (reader->name() == QLatin1String("comment")) {
			if (!readCommentElement(reader))
				return false;
		} else if (reader->name() == QLatin1String("general")) {
			attribs = reader->attributes();

			str = attribs.value(QStringLiteral("subscriptionCount")).toString();
			if (str.isEmpty())
				reader->raiseWarning(attributeWarning.arg(QStringLiteral("'subscriptionCount'")));
			else
				m_subscriptionCountToLoad = str.toInt();

			str = attribs.value(QStringLiteral("keepValues")).toString();
			if (str.isEmpty())
				reader->raiseWarning(attributeWarning.arg(QStringLiteral("'keepValues'")));
			else
				m_keepNValues = str.toInt();

			str = attribs.value(QStringLiteral("updateType")).toString();
			if (str.isEmpty())
				reader->raiseWarning(attributeWarning.arg(QStringLiteral("'updateType'")));
			else
				m_updateType = static_cast<UpdateType>(str.toInt());

			str = attribs.value(QStringLiteral("readingType")).toString();
			if (str.isEmpty())
				reader->raiseWarning(attributeWarning.arg(QStringLiteral("'readingType'")));
			else
				m_readingType = static_cast<ReadingType>(str.toInt());

			if (m_updateType == UpdateType::TimeInterval) {
				str = attribs.value(QStringLiteral("updateInterval")).toString();
				if (str.isEmpty())
					reader->raiseWarning(attributeWarning.arg(QStringLiteral("'updateInterval'")));
				else
					m_updateInterval = str.toInt();
			}

			if (m_readingType != ReadingType::TillEnd) {
				str = attribs.value(QStringLiteral("sampleSize")).toString();
				if (str.isEmpty())
					reader->raiseWarning(attributeWarning.arg(QStringLiteral("'sampleSize'")));