FactGroup.cc

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#include "FactGroup.h"
 
#include <QtCore/QJsonArray>
 
#include "QGCLoggingCategory.h"
 
QGC_LOGGING_CATEGORY(FactGroupLog, "FactSystem.FactGroup")
 
FactGroup::FactGroup(int updateRateMsecs, const QString &metaDataFile, QObject *parent, bool ignoreCamelCase)
    : QObject(parent)
    , _updateRateMSecs(updateRateMsecs)
    , _ignoreCamelCase(ignoreCamelCase)
{
    // qCDebug(FactGroupLog) << Q_FUNC_INFO << this;
    _setupTimer();
    _nameToFactMetaDataMap = FactMetaData::createMapFromJsonFile(metaDataFile, this);
}
 
FactGroup::FactGroup(int updateRateMsecs, QObject *parent, bool ignoreCamelCase)
    : QObject(parent)
    , _updateRateMSecs(updateRateMsecs)
    , _ignoreCamelCase(ignoreCamelCase)
{
    // qCDebug(FactGroupLog) << Q_FUNC_INFO << this;
    _setupTimer();
}
 
FactGroup::~FactGroup()
{
    // qCDebug(FactGroupLog) << Q_FUNC_INFO << this;
}
 
void FactGroup::_loadFromJsonArray(const QJsonArray &jsonArray)
{
    QMap<QString, QString> defineMap;
    _nameToFactMetaDataMap = FactMetaData::createMapFromJsonArray(jsonArray, defineMap, this);
}
 
void FactGroup::_setupTimer()
{
    if (_updateRateMSecs > 0) {
        (void) connect(&_updateTimer, &QTimer::timeout, this, &FactGroup::_updateAllValues);
        _updateTimer.setSingleShot(false);
        _updateTimer.setInterval(_updateRateMSecs);
        _updateTimer.start();
    }
}
 
bool FactGroup::factExists(const QString &name) const
{
    if (name.contains(".")) {
        const QStringList parts = name.split(".");
        if (parts.count() != 2) {
            qCWarning(FactGroupLog) << "Only single level of hierarchy supported";
            return false;
        }
 
        FactGroup *const factGroup = getFactGroup(parts[0]);
        if (!factGroup) {
            qCWarning(FactGroupLog) << "Unknown FactGroup" << parts[0];
            return false;
        }
 
        return factGroup->factExists(parts[1]);
    }
 
    const QString camelCaseName = _ignoreCamelCase ? name : _camelCase(name);
 
    return _nameToFactMap.contains(camelCaseName);
}
 
Fact *FactGroup::getFact(const QString &name) const
{
    if (name.contains(".")) {
        const QStringList parts = name.split(".");
        if (parts.count() != 2) {
            qCWarning(FactGroupLog) << "Only single level of hierarchy supported";
            return nullptr;
        }
 
        FactGroup *const factGroup = getFactGroup(parts[0]);
        if (!factGroup) {
            qCWarning(FactGroupLog) << "Unknown FactGroup" << parts[0];
            return nullptr;
        }
 
        return factGroup->getFact(parts[1]);
    }
 
    Fact *fact = nullptr;
    const QString camelCaseName = _ignoreCamelCase ? name : _camelCase(name);
 
    if (_nameToFactMap.contains(camelCaseName)) {
        fact = _nameToFactMap[camelCaseName];
    } else {
        qCWarning(FactGroupLog) << "Unknown Fact" << camelCaseName;
    }
 
    return fact;
}
 
FactGroup *FactGroup::getFactGroup(const QString &name) const
{
    FactGroup * factGroup = nullptr;
    const QString camelCaseName = _ignoreCamelCase ? name : _camelCase(name);
 
    if (_nameToFactGroupMap.contains(camelCaseName)) {
        factGroup = _nameToFactGroupMap[camelCaseName];
    } else {
        qCWarning(FactGroupLog) << "Unknown FactGroup" << camelCaseName;
    }
 
    return factGroup;
}
 
void FactGroup::_addFact(Fact *fact, const QString &name)
{
    if (_nameToFactMap.contains(name)) {
        qCWarning(FactGroupLog) << "Duplicate Fact" << name;
        return;
    }
 
    fact->setSendValueChangedSignals(_updateRateMSecs == 0);
    if (_nameToFactMetaDataMap.contains(name)) {
        fact->setMetaData(_nameToFactMetaDataMap[name], true /* setDefaultFromMetaData */);
    }
    _nameToFactMap[name] = fact;
    _factNames.append(name);
 
    emit factNamesChanged();
}
 
void FactGroup::_addFactGroup(FactGroup *factGroup, const QString &name)
{
    if (_nameToFactGroupMap.contains(name)) {
        qCWarning(FactGroupLog) << "Duplicate FactGroup" << name;
        return;
    }
 
    _nameToFactGroupMap[name] = factGroup;
 
    emit factGroupNamesChanged();
}
 
void FactGroup::_updateAllValues()
{
    for (Fact *fact: _nameToFactMap) {
        fact->sendDeferredValueChangedSignal();
    }
}
 
void FactGroup::setLiveUpdates(bool liveUpdates)
{
    if (_updateTimer.interval() == 0) {
        return;
    }
 
    if (liveUpdates) {
        _updateTimer.stop();
    } else {
        _updateTimer.start();
    }
 
    for (Fact *fact: _nameToFactMap) {
        fact->setSendValueChangedSignals(liveUpdates);
    }
}
 
 
QString FactGroup::_camelCase(const QString &text)
{
    return (text[0].toLower() + text.right(text.length() - 1));
}
 
void FactGroup::_setTelemetryAvailable (bool telemetryAvailable)
{
    if (telemetryAvailable != _telemetryAvailable) {
        _telemetryAvailable = telemetryAvailable;
        emit telemetryAvailableChanged(_telemetryAvailable);
    }
}