LoggerStartCommand Class Reference

The LoggerStartCommand class implements the logger CLI command. More...

Inheritance diagram for LoggerStartCommand:

Collaboration diagram for LoggerStartCommand:

Public Slots
QStringList	processOptions (const QCommandLineParser &parser) override
	Processes the relevant options from the command line parser.
Public Slots inherited from DeviceCommand
bool	start () override
	Begins scanning for the Pokit device.
Public Slots inherited from AbstractCommand
virtual QStringList	processOptions (const QCommandLineParser &parser)
	Processes the relevant options from the command line parser.
virtual bool	start ()=0
	Begins the functionality of this command, and returns true if begun successfully, false otherwise.

Public Member Functions
	LoggerStartCommand (QObject *const parent=nullptr)
	Construct a new LoggerStartCommand object with parent.
QStringList	requiredOptions (const QCommandLineParser &parser) const override
	Returns a list of CLI option names required by this command.
QStringList	supportedOptions (const QCommandLineParser &parser) const override
	Returns a list of CLI option names supported by this command.
Public Member Functions inherited from DeviceCommand
	DeviceCommand (QObject *const parent=nullptr)
	Construct a new DeviceCommand object with parent.
Public Member Functions inherited from AbstractCommand
	AbstractCommand (QObject *const parent=nullptr)
	Constructs a new command with parent.
Public Member Functions inherited from QObject
virtual const QMetaObject *	metaObject () const const
	QObject (QObject *parent)
virtual bool	event (QEvent *e)
virtual bool	eventFilter (QObject *watched, QEvent *event)
QString	objectName () const const
void	setObjectName (const QString &name)
bool	isWidgetType () const const
bool	isWindowType () const const
bool	signalsBlocked () const const
bool	blockSignals (bool block)
QThread *	thread () const const
void	moveToThread (QThread *targetThread)
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
void	killTimer (int id)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
const QObjectList &	children () const const
void	setParent (QObject *parent)
void	installEventFilter (QObject *filterObj)
void	removeEventFilter (QObject *obj)
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectTree ()
void	dumpObjectInfo ()
void	dumpObjectTree () const const
void	dumpObjectInfo () const const
bool	setProperty (const char *name, const QVariant &value)
QVariant	property (const char *name) const const
QList< QByteArray >	dynamicPropertyNames () const const
void	destroyed (QObject *obj)
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
bool	inherits (const char *className) const const
void	deleteLater ()
	Q_DISABLE_COPY (Class)
	Q_DISABLE_MOVE (Class)
	Q_DISABLE_COPY_MOVE (Class)
T	qobject_cast (QObject *object)
T	qobject_cast (const QObject *object)
T	qFindChild (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QRegExp &regExp)
	Q_CLASSINFO (Name, Value)
	Q_INTERFACES (...)
	Q_PROPERTY (...)
	Q_ENUMS (...)
	Q_FLAGS (...)
	Q_ENUM (...)
	Q_FLAG (...)
	Q_ENUM_NS (...)
	Q_FLAG_NS (...)
	Q_OBJECT Q_OBJECT
	Q_GADGET Q_GADGET
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_SIGNALS Q_SIGNALS
	Q_SIGNAL Q_SIGNAL
	Q_SLOTS Q_SLOTS
	Q_SLOT Q_SLOT
	Q_EMIT Q_EMIT
	Q_INVOKABLE Q_INVOKABLE
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT

Protected Slots
void	serviceDetailsDiscovered () override
	Handles service detail discovery events.
Protected Slots inherited from DeviceCommand
virtual void	controllerError (const QLowEnergyController::Error error)
	Handles controller error events.
virtual void	deviceDisconnected ()
	Handles devics disconnection events.
virtual void	serviceError (const QLowEnergyService::ServiceError error)
	Handles service error events.
virtual void	serviceDetailsDiscovered ()
	Handles service detail discovery events.
Protected Slots inherited from AbstractCommand
virtual void	deviceDiscovered (const QBluetoothDeviceInfo &info)=0
	Handles PokitDiscoveryAgent::pokitDeviceDiscovered signal.
virtual void	deviceDiscoveryFinished ()=0
	Handles PokitDiscoveryAgent::deviceDiscoveryFinished signal.

Protected Member Functions
AbstractPokitService *	getService () override
	Returns a Pokit service object for the derived command class.
Protected Member Functions inherited from DeviceCommand
void	disconnect (int exitCode=EXIT_SUCCESS)
	Disconnects the underlying Pokit device, and sets exitCode to be return to the OS once the disconnection has taken place.
Protected Member Functions inherited from QObject
QObject *	sender () const const
int	senderSignalIndex () const const
int	receivers (const char *signal) const const
bool	isSignalConnected (const QMetaMethod &signal) const const
virtual void	timerEvent (QTimerEvent *event)
virtual void	childEvent (QChildEvent *event)
virtual void	customEvent (QEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	disconnectNotify (const QMetaMethod &signal)

Private Slots
void	settingsWritten ()
	Invoked when the data logger settings have been written.

Private Attributes
quint8(*	minRangeFunc )(const PokitProduct product, const quint32 maxValue)
	Pointer to function for converting rangeOptionValue to a Pokit device's range enumerator.
quint32	rangeOptionValue { 0 }
	The parsed value of range option.
DataLoggerService *	service { nullptr }
	Bluetooth service this command interracts with.
DataLoggerService::Settings	settings
	Settings for the Pokit device's data logger mode.

Friends
class	TestLoggerStartCommand

Additional Inherited Members
Public Types inherited from AbstractCommand
enum class	OutputFormat { Csv , Json , Text }
	Supported output formats. More...
Static Public Member Functions inherited from AbstractCommand
static QString	escapeCsvField (const QString &field)
	Returns an RFC 4180 compliant version of field.
template<typename R >
static quint32	parseNumber (const QString &value, const QString &unit, const quint32 sensibleMinimum=0)
	Returns value as an integer multiple of the ratio R.
Static Public Member Functions inherited from QObject
QString	tr (const char *sourceText, const char *disambiguation, int n)
QString	trUtf8 (const char *sourceText, const char *disambiguation, int n)
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
Public Attributes inherited from QObject
typedef	QObjectList
Static Protected Member Functions inherited from DeviceCommand
template<typename T >
static T	minRange (const quint32 maxValue)
static quint8	minCapacitanceRange (const PokitProduct product, const quint32 maxValue)
	Returns the product's lowest capacitance range that can measure at least up to maxValue (nF), or AutoRange if no such range is available.
static quint8	minCurrentRange (const PokitProduct product, const quint32 maxValue)
	Returns the product's lowest current range that can measure at least up to maxValue (µA), or AutoRange if no such range is available.
static quint8	minResistanceRange (const PokitProduct product, const quint32 maxValue)
	Returns the product's lowest resistance range that can measure at least up to maxValue (Ω), or AutoRange if no such range is available.
static quint8	minVoltageRange (const PokitProduct product, const quint32 maxValue)
	t Returns the product's lowest voltage range that can measure at least up to maxValue (mV), or AutoRange if no such range is available.
Static Protected Member Functions inherited from AbstractCommand
static	Q_LOGGING_CATEGORY (lc, "dokit.cli.command", QtInfoMsg)
	Logging category for UI commands.
Protected Attributes inherited from DeviceCommand
PokitDevice *	device { nullptr }
	Pokit Bluetooth device (if any) this command inerracts with.
int	exitCodeOnDisconnect { EXIT_FAILURE }
	Exit code to return on device disconnection.
Protected Attributes inherited from AbstractCommand
QString	deviceToScanFor
	Device (if any) that were passed to processOptions().
PokitDiscoveryAgent *	discoveryAgent
	Agent for Pokit device descovery.
OutputFormat	format { OutputFormat::Text }
	Selected output format.
Properties inherited from QObject
	objectName

Detailed Description

The LoggerStartCommand class implements the logger CLI command.

Definition at line 10 of file loggerstartcommand.h.

Constructor & Destructor Documentation

LoggerStartCommand()

LoggerStartCommand::LoggerStartCommand ( QObject *const parent = nullptr )

explicit

Construct a new LoggerStartCommand object with parent.

Definition at line 23 of file loggerstartcommand.cpp.

                                                             : DeviceCommand(parent)
{
 
}

Member Function Documentation

getService()

AbstractPokitService * LoggerStartCommand::getService ( )

overrideprotectedvirtual

Returns a Pokit service object for the derived command class.

This override returns a pointer to a DataLoggerService object.

Implements DeviceCommand.

Definition at line 136 of file loggerstartcommand.cpp.

{
    Q_ASSERT(device);
    if (!service) {
        service = device->dataLogger();
        Q_ASSERT(service);
        connect(service, &DataLoggerService::settingsWritten,
                this, &LoggerStartCommand::settingsWritten);
    }
    return service;
}

References QObject::connect(), PokitDevice::dataLogger(), DeviceCommand::device, service, DataLoggerService::settingsWritten(), and settingsWritten().

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processOptions

QStringList LoggerStartCommand::processOptions ( const QCommandLineParser & parser )

overrideslot

Processes the relevant options from the command line parser.

This implementation extends DeviceCommand::processOptions to process additional CLI options supported (or required) by this command.

Definition at line 50 of file loggerstartcommand.cpp.

{
    QStringList errors = DeviceCommand::processOptions(parser);
    if (!errors.isEmpty()) {
        return errors;
    }
 
    // Parse the (required) mode option.
    const QString mode = parser.value(QLatin1String("mode")).trimmed().toLower();
    if (mode.startsWith(QLatin1String("ac v")) || mode.startsWith(QLatin1String("vac"))) {
        settings.mode = DataLoggerService::Mode::AcVoltage;
        minRangeFunc = minVoltageRange;
    } else if (mode.startsWith(QLatin1String("dc v")) || mode.startsWith(QLatin1String("vdc"))) {
        settings.mode = DataLoggerService::Mode::DcVoltage;
        minRangeFunc = minVoltageRange;
    } else if (mode.startsWith(QLatin1String("ac c")) || mode.startsWith(QLatin1String("aac"))) {
        settings.mode = DataLoggerService::Mode::AcCurrent;
        minRangeFunc = minCurrentRange;
    } else if (mode.startsWith(QLatin1String("dc c")) || mode.startsWith(QLatin1String("adc"))) {
        settings.mode = DataLoggerService::Mode::DcCurrent;
        minRangeFunc = minCurrentRange;
    } else if (mode.startsWith(QLatin1String("temp"))) {
        settings.mode = DataLoggerService::Mode::Temperature;
        minRangeFunc = nullptr;
    } else {
        minRangeFunc = nullptr;
        errors.append(tr("Unknown logger mode: %1").arg(parser.value(QLatin1String("mode"))));
        return errors;
    }
 
    // Parse the range option.
    rangeOptionValue = 0;
    if (parser.isSet(QLatin1String("range"))) {
        const QString value = parser.value(QLatin1String("range"));
        switch (settings.mode) {
        case DataLoggerService::Mode::DcVoltage:
        case DataLoggerService::Mode::AcVoltage:
            rangeOptionValue = parseNumber<std::milli>(value, QLatin1String("V"), 50); // mV.
            break;
        case DataLoggerService::Mode::DcCurrent:
        case DataLoggerService::Mode::AcCurrent:
            rangeOptionValue = parseNumber<std::milli>(value, QLatin1String("A"), 5); // mA.
            break;
        default:
            qCInfo(lc).noquote() << tr("Ignoring range value: %1").arg(value);
        }
        if ((minRangeFunc != nullptr) && (rangeOptionValue == 0)) {
            errors.append(tr("Invalid range value: %1").arg(value));
        }
    } else if (settings.mode != DataLoggerService::Mode::Temperature) {
        errors.append(tr("Missing required option for logger mode '%1': range")
            .arg(parser.value(QLatin1String("mode"))));
    }
 
    // Parse the interval option.
    if (parser.isSet(QLatin1String("interval"))) {
        const QString value = parser.value(QLatin1String("interval"));
        const quint32 interval = parseNumber<std::milli>(value, QLatin1String("s"), 500);
        if (interval == 0) {
            errors.append(tr("Invalid interval value: %1").arg(value));
        } else {
            settings.updateInterval = interval;
        }
    }
 
    // Parse the timestamp option.
    settings.timestamp = (quint32)QDateTime::currentSecsSinceEpoch(); // Note, subject to Y2038 epochalypse.
    if (parser.isSet(QLatin1String("timestamp"))) {
        const QString value = parser.value(QLatin1String("timestamp"));
        QLocale locale; bool ok;
        static_assert(sizeof(uint) == sizeof(settings.timestamp), "QLocale has no toUint32().");
        const int timestamp = locale.toUInt(value, &ok);
        if (!ok) {
            errors.append(tr("Invalid timestamp value: %1").arg(value));
        } else {
            settings.timestamp = timestamp;
        }
    }
    return errors;
}

References DataLoggerService::AcCurrent, DataLoggerService::AcVoltage, QList::append(), QString::arg(), QDateTime::currentSecsSinceEpoch(), DataLoggerService::DcCurrent, DataLoggerService::DcVoltage, QList::isEmpty(), QCommandLineParser::isSet(), DeviceCommand::minCurrentRange(), minRangeFunc, DeviceCommand::minVoltageRange(), DataLoggerService::Settings::mode, AbstractCommand::processOptions(), rangeOptionValue, settings, QString::startsWith(), DataLoggerService::Temperature, DataLoggerService::Settings::timestamp, QString::toLower(), QLocale::toUInt(), QObject::tr(), QString::trimmed(), DataLoggerService::Settings::updateInterval, and QCommandLineParser::value().

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requiredOptions()

QStringList LoggerStartCommand::requiredOptions ( const QCommandLineParser & parser ) const

overridevirtual

Returns a list of CLI option names required by this command.

The main console appication may use this list to output an eror (and exit) if any of the returned names are not found in the parsed CLI options.

The (already parsed) parser may be used adjust the returned required options depending on the value of other options. For example, the logger command only requires the --mode option if the --command option is start.

This base implementation simply returns an empty list. Derived classes should override this function to include any required options.

Reimplemented from AbstractCommand.

Definition at line 28 of file loggerstartcommand.cpp.

{
    return DeviceCommand::requiredOptions(parser) + QStringList{
        QLatin1String("mode"),
    };
}

References AbstractCommand::requiredOptions().

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serviceDetailsDiscovered

void LoggerStartCommand::serviceDetailsDiscovered ( )

overrideprotectedslot

Handles service detail discovery events.

This override fetches the current device's status, and outputs it in the selected format.

Definition at line 153 of file loggerstartcommand.cpp.

{
    DeviceCommand::serviceDetailsDiscovered(); // Just logs consistently.
    settings.range = (minRangeFunc == nullptr) ? 0 : minRangeFunc(*service->pokitProduct(), rangeOptionValue);
    const QString range = service->toString(settings.range, settings.mode);
    qCInfo(lc).noquote() << tr("Logging %1, with range %2, every %L3ms.").arg(
        DataLoggerService::toString(settings.mode),
        (range.isNull()) ? QString::fromLatin1("N/A") : range).arg(settings.updateInterval);
    service->setSettings(settings);
}

References QString::arg(), QString::fromLatin1(), QString::isNull(), minRangeFunc, DataLoggerService::Settings::mode, AbstractPokitService::pokitProduct(), DataLoggerService::Settings::range, rangeOptionValue, service, DeviceCommand::serviceDetailsDiscovered(), DataLoggerService::setSettings(), settings, DataLoggerService::toString(), QObject::tr(), and DataLoggerService::Settings::updateInterval.

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settingsWritten

void LoggerStartCommand::settingsWritten ( )

privateslot

Invoked when the data logger settings have been written.

Definition at line 181 of file loggerstartcommand.cpp.

{
    qCDebug(lc).noquote() << tr("Settings written; data logger has started.");
    switch (format) {
    case OutputFormat::Csv:
        std::cout << qUtf8Printable(tr("logger_start_result\nsuccess\n"));
        break;
    case OutputFormat::Json:
        std::cout << qUtf8Printable(QLatin1String("true\n"));
        break;
    case OutputFormat::Text:
        std::cout << qUtf8Printable(tr("Done.\n"));
        break;
    }
    if (device) disconnect(); // Will exit the application once disconnected.
}

References AbstractCommand::Csv, DeviceCommand::device, DeviceCommand::disconnect(), AbstractCommand::format, AbstractCommand::Json, AbstractCommand::Text, and QObject::tr().

Referenced by getService().

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supportedOptions()

QStringList LoggerStartCommand::supportedOptions ( const QCommandLineParser & parser ) const

overridevirtual

Returns a list of CLI option names supported by this command.

The main console appication may use this list to output a warning for any parsed CLI options not included in the returned list.

The (already parsed) parser may be used adjust the returned supported options depending on the value of other options. For example, the logger command only supported the --timestamp option if the --command option is start.

This base implementation simply returns requiredOptions(). Derived classes should override this function to include optional options, such as:

QStringList Derived::supportedOptions(const QCommandLineParser &parser) const
{
    const QStringList list = AbstractCommand::supportedOptions(parser) + QStringList{ ... };
    list.sort();
    list.removeDuplicates(); // Optional, recommended.
    return list;
}

Reimplemented from AbstractCommand.

Definition at line 35 of file loggerstartcommand.cpp.

{
    return DeviceCommand::supportedOptions(parser) + QStringList{
        QLatin1String("interval"),
        QLatin1String("range"), // May still be required by processOptions(), depending on the --mode option's value.
        QLatin1String("timestamp"),
    };
}

References AbstractCommand::supportedOptions().

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Friends And Related Symbol Documentation

TestLoggerStartCommand

friend class TestLoggerStartCommand

friend

Definition at line 41 of file loggerstartcommand.h.

Member Data Documentation

minRangeFunc

LoggerStartCommand::minRangeFunc

inlineprivate

Pointer to function for converting rangeOptionValue to a Pokit device's range enumerator.

This function pointer is assigned during the command line parsing, but is not invoked until after the device's services are discovere, because prior to that discovery, we don't know which product (Meter vs Pro vs Clamp, etc) we're talking to and thus which enumerator list to be using.

If the current mode does not support ranges (eg diode, and continuity modes), then this member will be nullptr.

See also

processOptions

serviceDetailsDiscovered

Definition at line 30 of file loggerstartcommand.h.

{ nullptr };

Referenced by processOptions(), and serviceDetailsDiscovered().

rangeOptionValue

quint32 LoggerStartCommand::rangeOptionValue { 0 }

private

The parsed value of range option.

Definition at line 31 of file loggerstartcommand.h.

{ 0 };          ///< The parsed value of range option.

Referenced by processOptions(), and serviceDetailsDiscovered().

service

DataLoggerService* LoggerStartCommand::service { nullptr }

private

Bluetooth service this command interracts with.

Definition at line 32 of file loggerstartcommand.h.

{ nullptr }; ///< Bluetooth service this command interracts with.

Referenced by getService(), and serviceDetailsDiscovered().

settings

DataLoggerService::Settings LoggerStartCommand::settings

private

Initial value:

{
        DataLoggerService::Command::Start, 0, DataLoggerService::Mode::DcVoltage,
        +PokitMeter::VoltageRange::AutoRange, 60'000, 0
    }

Settings for the Pokit device's data logger mode.

Definition at line 33 of file loggerstartcommand.h.

                                       {   ///< Settings for the Pokit device's data logger mode.
        DataLoggerService::Command::Start, 0, DataLoggerService::Mode::DcVoltage,
        +PokitMeter::VoltageRange::AutoRange, 60'000, 0
    };

Referenced by processOptions(), and serviceDetailsDiscovered().

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The documentation for this class was generated from the following files:

• loggerstartcommand.h
• loggerstartcommand.cpp