The AbstractPokitServicePrivate class provides private implementation for AbstractPokitService. More...

Inheritance diagram for AbstractPokitServicePrivate:

Collaboration diagram for AbstractPokitServicePrivate:

Public Member Functions
	AbstractPokitServicePrivate (const QBluetoothUuid &serviceUuid, QLowEnergyController controller, AbstractPokitService const q)

bool	createServiceObject ()
	Creates an internal service object from the internal controller.

QLowEnergyCharacteristic	getCharacteristic (const QBluetoothUuid &uuid) const
	Get uuid characteristc from the underlying service.

bool	readCharacteristic (const QBluetoothUuid &uuid)
	Read the uuid characteristic.

bool	enableCharacteristicNotificatons (const QBluetoothUuid &uuid)
	Enables client (Pokit device) side notification for characteristic uuid.

bool	disableCharacteristicNotificatons (const QBluetoothUuid &uuid)
	Disables client (Pokit device) side notification for characteristic uuid.

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

Static Public Member Functions
static	Q_LOGGING_CATEGORY (lc, "pokit.ble.service", QtInfoMsg)
	Logging category.

static bool	checkSize (const QString &label, const QByteArray &data, const int minSize, const int maxSize=-1, const bool failOnMax=false)
	Returns `false` if data is smaller than minSize, otherwise returns failOnMax if data is bigger than maxSize, otherwise returns `true`.

static QString	toHexString (const QByteArray &data, const int maxSize=20)
	Returns up to maxSize bytes of data as a human readable hexadecimal string.

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
bool	autoDiscover { true }
	Whether autodiscovery is enabled or not.

QLowEnergyController *	controller { nullptr }
	BLE controller to fetch the service from.

std::optional< PokitProduct >	pokitProduct
	The Pokit product controller is connected to.

QLowEnergyService *	service { nullptr }
	BLE service to read/write characteristics.

QBluetoothUuid	serviceUuid
	UUIDs for service.

Public Attributes inherited from QObject
typedef	QObjectList

Protected Slots
void	connected ()
	Handles `QLowEnergyController::connected` events.

void	discoveryFinished ()
	Handles `QLowEnergyController::discoveryFinished` events.

void	errorOccurred (const QLowEnergyService::ServiceError newError)
	Handles `QLowEnergyController::errorOccurred` events.

virtual void	serviceDiscovered (const QBluetoothUuid &newService)
	Handles `QLowEnergyController::serviceDiscovered` events.

void	stateChanged (QLowEnergyService::ServiceState newState)
	Handles `QLowEnergyController::stateChanged` events.

virtual void	characteristicRead (const QLowEnergyCharacteristic &characteristic, const QByteArray &value)
	Handles `QLowEnergyService::characteristicRead` events.

virtual void	characteristicWritten (const QLowEnergyCharacteristic &characteristic, const QByteArray &newValue)
	Handles `QLowEnergyService::characteristicWritten` events.

virtual void	characteristicChanged (const QLowEnergyCharacteristic &characteristic, const QByteArray &newValue)
	Handles `QLowEnergyService::characteristicChanged` events.

Protected Attributes
AbstractPokitService *	q_ptr
	Internal q-pointer.

Friends
class	TestAbstractPokitService

Additional Inherited Members
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)

Properties inherited from QObject
	objectName

Detailed Description

The AbstractPokitServicePrivate class provides private implementation for AbstractPokitService.

Definition at line 27 of file abstractpokitservice_p.h.

Constructor & Destructor Documentation

◆ AbstractPokitServicePrivate()

AbstractPokitServicePrivate::AbstractPokitServicePrivate	(	const QBluetoothUuid &	serviceUuid,
		QLowEnergyController *	controller,
		AbstractPokitService *const	q )

Constructs a new AbstractPokitServicePrivate object with public implementation q.

Note, typically the serviceUuid should be set validly, however, in the rare case that a service's UUID can vary (ie the Status Service), serviceUuid may be set to a null QBluetoothUuid here, and updated when the correct service UUID is known.

See also: StatusService::ServiceUuids; StatusServicePrivate::serviceDiscovered

Definition at line 168 of file abstractpokitservice.cpp.

    : controller(controller), serviceUuid(serviceUuid), q_ptr(q)
{
    if (controller) {
        connect(controller, &QLowEnergyController::connected,
                this, &AbstractPokitServicePrivate::connected);
 
        connect(controller, &QLowEnergyController::discoveryFinished,
                this, &AbstractPokitServicePrivate::discoveryFinished);
 
        connect(controller, &QLowEnergyController::serviceDiscovered,
                this, &AbstractPokitServicePrivate::serviceDiscovered);
 
        createServiceObject();
    }
}

References QObject::connect(), connected(), QLowEnergyController::connected(), controller, createServiceObject(), discoveryFinished(), QLowEnergyController::discoveryFinished(), serviceDiscovered(), and QLowEnergyController::serviceDiscovered().

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Member Function Documentation

◆ characteristicChanged

void AbstractPokitServicePrivate::characteristicChanged	(	const QLowEnergyCharacteristic &	characteristic,
		const QByteArray &	newValue )

protectedvirtualslot

Handles QLowEnergyService::characteristicChanged events.

This base implementation simply debug logs the event.

If derived classes support characteristics with client-side notification (ie Notify, as opposed to Read or Write operations), they should implement this function to handle the successful reads of characteristic, typically by parsing value, then emitting a speciailised signal.

Reimplemented in DataLoggerServicePrivate, DsoServicePrivate, and MultimeterServicePrivate.

Definition at line 591 of file abstractpokitservice.cpp.

{
    qCDebug(lc).noquote() << tr(R"(Characteristic %1 "%2" changed to %Ln byte/s: %3)", nullptr, newValue.size())
        .arg(characteristic.uuid().toString(), PokitDevice::charcteristicToString(characteristic.uuid()), toHexString(newValue));
}

References QString::arg(), PokitDevice::charcteristicToString(), QByteArray::size(), toHexString(), QUuid::toString(), QObject::tr(), and QLowEnergyCharacteristic::uuid().

Referenced by DataLoggerServicePrivate::characteristicChanged(), DsoServicePrivate::characteristicChanged(), MultimeterServicePrivate::characteristicChanged(), and createServiceObject().

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◆ characteristicRead

void AbstractPokitServicePrivate::characteristicRead	(	const QLowEnergyCharacteristic &	characteristic,
		const QByteArray &	value )

protectedvirtualslot

Handles QLowEnergyService::characteristicRead events.

This base implementation simply debug logs the event.

Derived classes should implement this function to handle the successful reads of characteristic, typically by parsing value, then emitting a speciailised signal.

Reimplemented in DataLoggerServicePrivate, DeviceInfoServicePrivate, DsoServicePrivate, MultimeterServicePrivate, and StatusServicePrivate.

Definition at line 562 of file abstractpokitservice.cpp.

{
    qCDebug(lc).noquote() << tr(R"(Characteristic %1 "%2" read %n byte/s: %3)", nullptr, value.size()).arg(
        characteristic.uuid().toString(), PokitDevice::charcteristicToString(characteristic.uuid()), toHexString(value));
}

References QString::arg(), PokitDevice::charcteristicToString(), QByteArray::size(), toHexString(), QUuid::toString(), QObject::tr(), and QLowEnergyCharacteristic::uuid().

Referenced by DataLoggerServicePrivate::characteristicRead(), DeviceInfoServicePrivate::characteristicRead(), DsoServicePrivate::characteristicRead(), MultimeterServicePrivate::characteristicRead(), StatusServicePrivate::characteristicRead(), and createServiceObject().

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◆ characteristicWritten

void AbstractPokitServicePrivate::characteristicWritten	(	const QLowEnergyCharacteristic &	characteristic,
		const QByteArray &	newValue )

protectedvirtualslot

Handles QLowEnergyService::characteristicWritten events.

This base implementation simply debug logs the event.

Derived classes should implement this function to handle the successful writes of characteristic, typically by parsing newValue, then emitting a speciailised signal.

Reimplemented in CalibrationServicePrivate, DataLoggerServicePrivate, DsoServicePrivate, MultimeterServicePrivate, and StatusServicePrivate.

Definition at line 576 of file abstractpokitservice.cpp.

{
    qCDebug(lc).noquote() << tr(R"(Characteristic %1 "%2" written with %Ln byte/s: %3)", nullptr, newValue.size())
        .arg(characteristic.uuid().toString(), PokitDevice::charcteristicToString(characteristic.uuid()), toHexString(newValue));
}

References QString::arg(), PokitDevice::charcteristicToString(), QByteArray::size(), toHexString(), QUuid::toString(), QObject::tr(), and QLowEnergyCharacteristic::uuid().

Referenced by CalibrationServicePrivate::characteristicWritten(), DataLoggerServicePrivate::characteristicWritten(), DsoServicePrivate::characteristicWritten(), MultimeterServicePrivate::characteristicWritten(), StatusServicePrivate::characteristicWritten(), and createServiceObject().

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◆ checkSize()

bool AbstractPokitServicePrivate::checkSize	(	const QString &	label,
		const QByteArray &	data,
		const int	minSize,
		const int	maxSize = -1,
		const bool	failOnMax = false )

static

Returns false if data is smaller than minSize, otherwise returns failOnMax if data is bigger than maxSize, otherwise returns true.

A warning is logged if either minSize or maxSize is violated, regardless of the returned value; ie this funcion can be used to simply warn if data is too big, or it can be used to failed (return false) in that case.

Definition at line 400 of file abstractpokitservice.cpp.

{
    if (data.size() < minSize) {
        qCWarning(lc).noquote() << tr("%1 requires %n byte/s, but only %2 present: %3", nullptr, minSize)
            .arg(label).arg(data.size()).arg(toHexString(data));
        return false;
    }
    if ((maxSize >= 0) && (data.size() > maxSize)) {
        qCWarning(lc).noquote() << tr("%1 has %n extraneous byte/s: %2", nullptr, data.size()-maxSize)
            .arg(label, toHexString(data.mid(maxSize)));
        return (!failOnMax);
    }
    return true;
}

References QString::arg(), QByteArray::mid(), QByteArray::size(), toHexString(), and QObject::tr().

Referenced by StatusServicePrivate::characteristicRead(), StatusServicePrivate::parseButtonPress(), StatusServicePrivate::parseDeviceCharacteristics(), DataLoggerServicePrivate::parseMetadata(), DsoServicePrivate::parseMetadata(), MultimeterServicePrivate::parseReading(), StatusServicePrivate::parseStatus(), and StatusServicePrivate::parseTorchStatus().

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◆ connected

void AbstractPokitServicePrivate::connected ( )

protectedslot

Handles QLowEnergyController::connected events.

If autoDiscover is enabled, this will begin service discovery on the newly connected contoller.

See also: AbstractPokitService::autoDiscover()

Definition at line 441 of file abstractpokitservice.cpp.

{
    if (!controller) {
        qCWarning(lc).noquote() << tr("Connected with no controller set") << sender();
        return;
    }
 
    qCDebug(lc).noquote() << tr(R"(Connected to "%1" (%2) at %3.)").arg(
        controller->remoteName(), controller->remoteDeviceUuid().toString(),
        controller->remoteAddress().toString());
    if (autoDiscover) {
        controller->discoverServices();
    }
}

References QString::arg(), autoDiscover, controller, QLowEnergyController::discoverServices(), QLowEnergyController::remoteAddress(), QLowEnergyController::remoteDeviceUuid(), QLowEnergyController::remoteName(), QObject::sender(), QBluetoothAddress::toString(), QUuid::toString(), and QObject::tr().

Referenced by AbstractPokitServicePrivate().

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◆ createServiceObject()

bool AbstractPokitServicePrivate::createServiceObject ( )

Creates an internal service object from the internal controller.

Any existing service object will not be replaced.

Returns true if a service was created successfully, either now, or sometime previously.

Definition at line 193 of file abstractpokitservice.cpp.

{
    if (!controller) {
        return false;
    }
 
    if (service) {
        qCDebug(lc).noquote() << tr("Already have service object:") << service;
        return true;
    }
 
    if (serviceUuid.isNull()) {
        qCDebug(lc).noquote() << tr("Service UUID not assigned yet.");
        return false;
    }
 
    service = controller->createServiceObject(serviceUuid, this);
    if (!service) {
        return false;
    }
    qCDebug(lc).noquote() << tr("Service object created for %1 device:").arg(toString(*this->pokitProduct)) << service;
 
    connect(service, &QLowEnergyService::stateChanged,
            this, &AbstractPokitServicePrivate::stateChanged);
    connect(service, &QLowEnergyService::characteristicRead,
            this, &AbstractPokitServicePrivate::characteristicRead);
    connect(service, &QLowEnergyService::characteristicWritten,
            this, &AbstractPokitServicePrivate::characteristicWritten);
    connect(service, &QLowEnergyService::characteristicChanged,
            this, &AbstractPokitServicePrivate::characteristicChanged);
 
    connect(service, &QLowEnergyService::descriptorRead, this,
        [](const QLowEnergyDescriptor &descriptor, const QByteArray &value){
            qCDebug(lc).noquote() << tr(R"(Descriptor "%1" (%2) read.)")
                .arg(descriptor.name(), descriptor.uuid().toString());
            Q_UNUSED(value)
        });
 
    connect(service, &QLowEnergyService::descriptorWritten, this,
        [](const QLowEnergyDescriptor &descriptor, const QByteArray &newValue){
            qCDebug(lc).noquote() << tr(R"(Descriptor "%1" (%2) written.)")
                .arg(descriptor.name(), descriptor.uuid().toString());
            Q_UNUSED(newValue)
        });
 
    connect(service,
    #if (QT_VERSION < QT_VERSION_CHECK(6, 2, 0))
        QOverload<QLowEnergyService::ServiceError>::of(&QLowEnergyService::error),
    #else
        &QLowEnergyService::errorOccurred,
    #endif
        this, &AbstractPokitServicePrivate::errorOccurred);
 
    if (autoDiscover) {
        service->discoverDetails();
    }
    return true;
}

Referenced by AbstractPokitServicePrivate(), discoveryFinished(), and serviceDiscovered().

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◆ disableCharacteristicNotificatons()

bool AbstractPokitServicePrivate::disableCharacteristicNotificatons ( const QBluetoothUuid & uuid )

Disables client (Pokit device) side notification for characteristic uuid.

Returns true if the notication disable request was successfully queued, false otherwise.

See also: AbstractPokitServicePrivate::characteristicChanged; AbstractPokitServicePrivate::enableCharacteristicNotificatons

Definition at line 365 of file abstractpokitservice.cpp.

{
    qCDebug(lc).noquote() << tr(R"(Disabling CCCD for characteristic %1 "%2".)")
        .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));
    QLowEnergyCharacteristic characteristic = getCharacteristic(uuid);
    if (!characteristic.isValid()) {
        return false;
    }
 
    QLowEnergyDescriptor descriptor = characteristic.descriptor(
        QBluetoothUuid::DescriptorType::ClientCharacteristicConfiguration);
    if (!descriptor.isValid()) {
        qCWarning(lc).noquote() << tr(R"(Characteristic %1 "%2" has no client configuration descriptor.)")
            .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));
        return false;
    }
 
    service->writeDescriptor(descriptor,
        #if (QT_VERSION >= QT_VERSION_CHECK(6, 2, 0))
        QLowEnergyCharacteristic::CCCDDisable
        #else
        QByteArray::fromHex("0000") // See Qt6's QLowEnergyCharacteristic::CCCDDisable.
        #endif
    );
    return true;
}

References QString::arg(), PokitDevice::charcteristicToString(), QLowEnergyCharacteristic::descriptor(), QByteArray::fromHex(), getCharacteristic(), QLowEnergyCharacteristic::isValid(), QLowEnergyDescriptor::isValid(), service, QUuid::toString(), QObject::tr(), and QLowEnergyService::writeDescriptor().

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◆ discoveryFinished

void AbstractPokitServicePrivate::discoveryFinished ( )

protectedslot

Handles QLowEnergyController::discoveryFinished events.

As this event indicates that the conroller has finished discovering services, this function will invoke createServiceObject() to create the internal service object (if not already created).

Definition at line 462 of file abstractpokitservice.cpp.

{
    if (!controller) {
        qCWarning(lc).noquote() << tr("Discovery finished with no controller set") << sender();
        return;
    }
 
    qCDebug(lc).noquote() << tr(R"(Discovery finished for "%1" (%2) at %3.)").arg(
        controller->remoteName(), controller->remoteDeviceUuid().toString(),
        controller->remoteAddress().toString());
 
    if (!createServiceObject()) {
        qCWarning(lc).noquote() << tr("Discovery finished, but service not found.");
        Q_Q(AbstractPokitService);
        Q_EMIT q->serviceErrorOccurred(QLowEnergyService::ServiceError::UnknownError);
    }
}

References QString::arg(), controller, createServiceObject(), QObject::Q_EMIT(), QLowEnergyController::remoteAddress(), QLowEnergyController::remoteDeviceUuid(), QLowEnergyController::remoteName(), QObject::sender(), QBluetoothAddress::toString(), QUuid::toString(), and QObject::tr().

Referenced by AbstractPokitServicePrivate().

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◆ enableCharacteristicNotificatons()

bool AbstractPokitServicePrivate::enableCharacteristicNotificatons ( const QBluetoothUuid & uuid )

Enables client (Pokit device) side notification for characteristic uuid.

Returns true if the notication enable request was successfully queued, false otherwise.

See also: AbstractPokitServicePrivate::characteristicChanged; AbstractPokitServicePrivate::disableCharacteristicNotificatons

Definition at line 330 of file abstractpokitservice.cpp.

{
    qCDebug(lc).noquote() << tr(R"(Enabling CCCD for characteristic %1 "%2".)")
        .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));
    QLowEnergyCharacteristic characteristic = getCharacteristic(uuid);
    if (!characteristic.isValid()) {
        return false;
    }
 
    QLowEnergyDescriptor descriptor = characteristic.descriptor(
        QBluetoothUuid::DescriptorType::ClientCharacteristicConfiguration);
    if (!descriptor.isValid()) {
        qCWarning(lc).noquote() << tr(R"(Characteristic %1 "%2" has no client configuration descriptor.)")
            .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));
        return false;
    }
 
    service->writeDescriptor(descriptor,
        #if (QT_VERSION >= QT_VERSION_CHECK(6, 2, 0))
        QLowEnergyCharacteristic::CCCDEnableNotification
        #else
        QByteArray::fromHex("0100") // See Qt6's QLowEnergyCharacteristic::CCCDEnableNotification.
        #endif
    );
    return true;
}

References QString::arg(), PokitDevice::charcteristicToString(), QLowEnergyCharacteristic::descriptor(), QByteArray::fromHex(), getCharacteristic(), QLowEnergyCharacteristic::isValid(), QLowEnergyDescriptor::isValid(), service, QUuid::toString(), QObject::tr(), and QLowEnergyService::writeDescriptor().

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◆ errorOccurred

void AbstractPokitServicePrivate::errorOccurred ( const QLowEnergyService::ServiceError newError )

protectedslot

Handles QLowEnergyController::errorOccurred events.

This function simply re-emits newError as AbstractPokitService::serviceErrorOccurred.

Definition at line 485 of file abstractpokitservice.cpp.

{
    Q_Q(AbstractPokitService);
    qCDebug(lc).noquote() << tr("Service error") << newError;
    Q_EMIT q->serviceErrorOccurred(newError);
}

References QObject::Q_EMIT(), and QObject::tr().

Referenced by createServiceObject().

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◆ getCharacteristic()

QLowEnergyCharacteristic AbstractPokitServicePrivate::getCharacteristic ( const QBluetoothUuid & uuid ) const

Get uuid characteristc from the underlying service.

This helper function is equivalent to

return service->characteristic(uuid);

QLowEnergyService::characteristic

QLowEnergyCharacteristic characteristic(const QBluetoothUuid &uuid) const const

except that it performs some sanity checks, such as checking the service object pointer has been assigned first, and also logs failures in a consistent manner.

Parameters

uuid

Returns

Definition at line 265 of file abstractpokitservice.cpp.

{
    if (!service) {
        qCDebug(lc).noquote() << tr(R"(Characteristic %1 "%2" requested before service assigned.)")
            .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));
        return QLowEnergyCharacteristic();
    }
 
    const QLowEnergyCharacteristic characteristic = service->characteristic(uuid);
    if (characteristic.isValid()) {
        return characteristic;
    }
 
    if (service->state() != QLowEnergyService::
        #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
        ServiceDiscovered
        #else
        RemoteServiceDiscovered
        #endif
    ) {
        qCWarning(lc).noquote() << tr(R"(Characteristic %1 "%2" requested before service %3 "%4" discovered.)")
            .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid),
            service->serviceUuid().toString(), PokitDevice::serviceToString(service->serviceUuid()));
        qCInfo(lc).noquote() << tr("Current service state:") << service->state();
        return QLowEnergyCharacteristic();
    }
 
    qCWarning(lc).noquote() << tr(R"(Characteristic %1 "%2" not found in service %3 "%4".)")
        .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid),
        service->serviceUuid().toString(), PokitDevice::serviceToString(service->serviceUuid()));
    return QLowEnergyCharacteristic();
}

References QString::arg(), QLowEnergyService::characteristic(), PokitDevice::charcteristicToString(), QLowEnergyCharacteristic::isValid(), service, PokitDevice::serviceToString(), QLowEnergyService::serviceUuid(), QLowEnergyService::state(), QUuid::toString(), and QObject::tr().

Referenced by disableCharacteristicNotificatons(), enableCharacteristicNotificatons(), and readCharacteristic().

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◆ readCharacteristic()

bool AbstractPokitServicePrivate::readCharacteristic ( const QBluetoothUuid & uuid )

Read the uuid characteristic.

If succesful, the QLowEnergyService::characteristicRead signal will be emitted by the internal service object. For convenience, derived classes should implement the characteristicRead() virtual function to handle the read value.

Returns true if the characteristic read request was successfully queued, false otherwise.

See also: AbstractPokitService::readCharacteristics(); AbstractPokitServicePrivate::characteristicRead()

Definition at line 310 of file abstractpokitservice.cpp.

{
    const QLowEnergyCharacteristic characteristic = getCharacteristic(uuid);
    if (!characteristic.isValid()) {
        return false;
    }
    qCDebug(lc).noquote() << tr(R"(Reading characteristic %1 "%2".)")
        .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));
    service->readCharacteristic(characteristic);
    return true;
}

References QString::arg(), PokitDevice::charcteristicToString(), getCharacteristic(), QLowEnergyCharacteristic::isValid(), QLowEnergyService::readCharacteristic(), service, QUuid::toString(), and QObject::tr().

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◆ serviceDiscovered

void AbstractPokitServicePrivate::serviceDiscovered ( const QBluetoothUuid & newService )

protectedvirtualslot

Handles QLowEnergyController::serviceDiscovered events.

If the discovered service is the one this (or rather the derived) class wraps, then createServiceObject() will be invoked immediately (otherwise it will be invoked after full service discovery has completed, ie in discoveryFinished()).

Reimplemented in StatusServicePrivate.

Definition at line 499 of file abstractpokitservice.cpp.

{
    if ((!service) && (newService == serviceUuid)) {
        qCDebug(lc).noquote() << tr("Service discovered") << newService;
        createServiceObject();
    }
}

References createServiceObject(), service, serviceUuid, and QObject::tr().

Referenced by AbstractPokitServicePrivate(), and StatusServicePrivate::serviceDiscovered().

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◆ stateChanged

void AbstractPokitServicePrivate::stateChanged ( QLowEnergyService::ServiceState newState )

protectedslot

Handles QLowEnergyController::stateChanged events.

If newState indicates that service details have now been discovered, then AbstractPokitService::serviceDetailsDiscovered will be emitted.

See also: AbstractPokitService::autoDiscover()

Definition at line 515 of file abstractpokitservice.cpp.

{
    qCDebug(lc).noquote() << tr("State changed to") << newState;
 
    if (lc().isDebugEnabled()) {
        for (const auto &characteristic: service->characteristics()) {
            QStringList properties;
            /// \cond no-doxygen
            #define QTPOKIT_INTERNAL_TEST_AND_APPEND(property) \
            if (characteristic.properties().testFlag(QLowEnergyCharacteristic::property)) { \
                properties.append(QStringLiteral(#property).toLower());\
            }
            /// \endcond
            QTPOKIT_INTERNAL_TEST_AND_APPEND(Broadcasting)
            QTPOKIT_INTERNAL_TEST_AND_APPEND(Read)
            QTPOKIT_INTERNAL_TEST_AND_APPEND(WriteNoResponse)
            QTPOKIT_INTERNAL_TEST_AND_APPEND(Write)
            QTPOKIT_INTERNAL_TEST_AND_APPEND(Notify)
            QTPOKIT_INTERNAL_TEST_AND_APPEND(Indicate)
            QTPOKIT_INTERNAL_TEST_AND_APPEND(WriteSigned)
            QTPOKIT_INTERNAL_TEST_AND_APPEND(ExtendedProperty)
            #undef QTPOKIT_INTERNAL_TEST_AND_APPEND
            qCDebug(lc).noquote() << tr(R"(Characteristic %1 "%2" supports %3.)").arg(characteristic.uuid().toString(),
                PokitDevice::charcteristicToString(characteristic.uuid()), properties.join(QStringLiteral(", ")));
        }
    }
 
    if (newState == QLowEnergyService::
            #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
            ServiceDiscovered
            #else
            RemoteServiceDiscovered
            #endif
        ) {
        Q_Q(AbstractPokitService);
        qCDebug(lc).noquote() << tr("Service details discovered.");
        Q_EMIT q->serviceDetailsDiscovered();
    }
}

References QString::arg(), QLowEnergyService::characteristics(), PokitDevice::charcteristicToString(), QStringList::join(), QObject::Q_EMIT(), service, and QObject::tr().

Referenced by createServiceObject().

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◆ toHexString()

QString AbstractPokitServicePrivate::toHexString	(	const QByteArray &	data,
		const int	maxSize = 20 )

static

Returns up to maxSize bytes of data as a human readable hexadecimal string.

If data exceeds maxSize, then data is elided in the middle. For example:

toHex(QBytArray("\x1\x2\x3\x4\x5\x6", 4); // "0x01,02,...,05,06"

Definition at line 425 of file abstractpokitservice.cpp.

{
    return (data.size() <= maxSize)
        ? QString::fromLatin1("0x%1").arg(QLatin1String(data.toHex(',')))
        : QString::fromLatin1("0x%1,...,%2").arg(
            QLatin1String(data.left(maxSize/2-1).toHex(',')),
            QLatin1String(data.right(maxSize/2-1).toHex(',')));
}

References QString::arg(), QString::fromLatin1(), QByteArray::left(), QByteArray::right(), QByteArray::size(), and QByteArray::toHex().

Referenced by characteristicChanged(), characteristicRead(), characteristicWritten(), checkSize(), DataLoggerServicePrivate::parseMetadata(), DataLoggerServicePrivate::parseSamples(), and DsoServicePrivate::parseSamples().

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Friends And Related Symbol Documentation

◆ TestAbstractPokitService

friend class TestAbstractPokitService

friend

Definition at line 74 of file abstractpokitservice_p.h.

Member Data Documentation

◆ autoDiscover

bool AbstractPokitServicePrivate::autoDiscover { true }

Whether autodiscovery is enabled or not.

Definition at line 34 of file abstractpokitservice_p.h.

34{ true }; ///< Whether autodiscovery is enabled or not.

Referenced by connected(), and createServiceObject().

◆ controller

QLowEnergyController* AbstractPokitServicePrivate::controller { nullptr }

BLE controller to fetch the service from.

Definition at line 35 of file abstractpokitservice_p.h.

35{ nullptr }; ///< BLE controller to fetch the service from.

Referenced by AbstractPokitServicePrivate(), connected(), createServiceObject(), and discoveryFinished().

◆ pokitProduct

std::optional<PokitProduct> AbstractPokitServicePrivate::pokitProduct

The Pokit product controller is connected to.

Definition at line 36 of file abstractpokitservice_p.h.

Referenced by createServiceObject().

◆ q_ptr

AbstractPokitService* AbstractPokitServicePrivate::q_ptr

protected

Internal q-pointer.

Definition at line 55 of file abstractpokitservice_p.h.

◆ service

QLowEnergyService* AbstractPokitServicePrivate::service { nullptr }

BLE service to read/write characteristics.

Definition at line 37 of file abstractpokitservice_p.h.

37{ nullptr }; ///< BLE service to read/write characteristics.

Referenced by createServiceObject(), disableCharacteristicNotificatons(), enableCharacteristicNotificatons(), getCharacteristic(), readCharacteristic(), serviceDiscovered(), and stateChanged().

◆ serviceUuid

QBluetoothUuid AbstractPokitServicePrivate::serviceUuid

UUIDs for service.

Definition at line 38 of file abstractpokitservice_p.h.

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

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Slots

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AbstractPokitServicePrivate()

Member Function Documentation

◆ characteristicChanged

◆ characteristicRead

◆ characteristicWritten

◆ checkSize()

◆ connected

◆ createServiceObject()

◆ disableCharacteristicNotificatons()

◆ discoveryFinished

◆ enableCharacteristicNotificatons()

◆ errorOccurred

◆ getCharacteristic()

◆ readCharacteristic()

◆ serviceDiscovered

◆ stateChanged

◆ toHexString()

Friends And Related Symbol Documentation

◆ TestAbstractPokitService

Member Data Documentation

◆ autoDiscover

◆ controller

◆ pokitProduct

◆ q_ptr

◆ service

◆ serviceUuid