nymea/libguh/plugin/deviceplugin.cpp

485 lines
21 KiB
C++

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* *
* This file is part of guh. *
* *
* Guh is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, version 2 of the License. *
* *
* Guh is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with guh. If not, see <http://www.gnu.org/licenses/>. *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*!
\class DevicePlugin
\brief This is the base class interface for device plugins.
\ingroup devices
\inmodule libguh
When implementing a new plugin, start by subclassing this and implementing the following
pure virtual methods: \l{DevicePlugin::pluginName()}, \l{DevicePlugin::pluginId()},
\l{DevicePlugin::supportedDevices()} and \l{DevicePlugin::requiredHardware()}
*/
/*!
\fn DeviceManager::HardwareResources DevicePlugin::requiredHardware() const
Return flags describing the common hardware resources required by this plugin.
\sa DevicePlugin::transmitData(), DevicePlugin::radioData(), DevicePlugin::guhTimer()
*/
/*!
\fn void DevicePlugin::radioData(const QList<int> &rawData)
If the plugin has requested any radio device using \l{DevicePlugin::requiredHardware()}, this slot will
be called when there is \a rawData available from that device.
*/
/*!
\fn void DevicePlugin::guhTimer()
If the plugin has requested the timer using \l{DevicePlugin::requiredHardware()}, this slot will be called
on timer events.
*/
/*!
\fn DeviceManager::DeviceError DevicePlugin::executeAction(Device *device, const Action &action)
This will be called to actually execute actions on the hardware. The \{Device} and
the \{Action} are contained in the \a device and \a action parameters.
Return the appropriate \l{DeviceManager::DeviceError}{DeviceError}.
It is possible to execute actions asynchronously. You never should do anything blocking for
a long time (e.g. wait on a network reply from the internet) but instead return
DeviceManager::DeviceErrorAsync and continue processing in an async manner. Once
you have the reply ready, emit actionExecutionFinished() with the appropriate parameters.
\sa actionExecutionFinished()
*/
/*!
\fn void DevicePlugin::devicesDiscovered(const DeviceClassId &deviceClassId, const QList<DeviceDescriptor> &devices);
This signal is emitted when the discovery of a \a deviceClassId of this DevicePlugin is finished. The \a devices parameter describes the
list of \l{DeviceDescriptor}{DeviceDescriptors} of all discovered \l{Device}{Devices}.
\sa discoverDevices()
*/
/*!
\fn void DevicePlugin::pairingFinished(const PairingTransactionId &pairingTransactionId, DeviceManager::DeviceSetupStatus status);
This signal is emitted when the pairing of a \a pairingTransactionId is finished.
The \a status of the will be described as \l{DeviceManager::DeviceError}{DeviceError}.
\sa confirmPairing()
*/
/*!
\fn void DevicePlugin::deviceSetupFinished(Device *device, DeviceManager::DeviceSetupStatus status);
This signal is emitted when the setup of a \a device in this DevicePlugin is finished. The \a status parameter describes the
\l{DeviceManager::DeviceError}{DeviceError} that occurred.
*/
/*!
\fn void DevicePlugin::configValueChanged(const QString &paramName, const QVariant &value);
This signal is emitted when the \l{Param} with a certain \a paramName of a \l{Device} configuration changed the \a value.
*/
/*!
\fn void DevicePlugin::actionExecutionFinished(const ActionId &id, DeviceManager::DeviceError status)
This signal is to be emitted when you previously have returned \l{DeviceManager}{DeviceErrorAsync}
in a call of executeAction(). The \a id refers to the executed \l{Action}. The \a status of the \l{Action}
execution will be described as \l{DeviceManager::DeviceError}{DeviceError}.
*/
/*!
\fn void DevicePlugin::autoDevicesAppeared(const DeviceClassId &deviceClassId, const QList<DeviceDescriptor> &deviceDescriptors)
This signal is emitted when a new \l{Device} of certain \a deviceClassId appeared. The description of the \l{Device}{Devices}
will be in \a deviceDescriptors. This signal can only emitted from devices with the \l{DeviceClass}{CreateMethodAuto}.
*/
/*!
\fn void DevicePlugin::emitEvent(const Event &event)
To produce a new event in the system, create a new \l{Event} and emit it with \a event.
Usually events are emitted in response to incoming data or other other events happening,
such as \l{DevicePlugin::radioData()} or \l{DevicePlugin::guhTimer()}. Find a configured
\l{Device} from the \l{DeviceManager} and get its \l{EventType}{EventTypes}, then
create a \l{Event} complying to that \l{EventType} and emit it here.
*/
/*!
\fn void DevicePlugin::init()
This will be called after constructing the DevicePlugin. Override this to do any
initialisation work you need to do.
*/
#include "deviceplugin.h"
#include "devicemanager.h"
#include "hardware/radio433/radio433.h"
#include <QDebug>
#include <QFileInfo>
#include <QFile>
#include <QJsonArray>
/*! DevicePlugin constructor. DevicePlugins will be instantiated by the DeviceManager, its \a parent. */
DevicePlugin::DevicePlugin(QObject *parent):
QObject(parent)
{
}
/*! Virtual destructor... */
DevicePlugin::~DevicePlugin()
{
}
/*! Returns the name of this DevicePlugin. */
QString DevicePlugin::pluginName() const
{
return m_metaData.value("name").toString();
}
/*! Returns the id of this DevicePlugin.
* When implementing a plugin, generate a new uuid and return it here. Always return the
* same uuid and don't change it or configurations can't be matched any more. */
PluginId DevicePlugin::pluginId() const
{
return m_metaData.value("id").toString();
}
/*! Returns the list of \l{Vendor}{Vendors} supported by this DevicePlugin. */
QList<Vendor> DevicePlugin::supportedVendors() const
{
QList<Vendor> vendors;
foreach (const QJsonValue &vendorJson, m_metaData.value("vendors").toArray()) {
Vendor vendor(vendorJson.toObject().value("id").toString(), vendorJson.toObject().value("name").toString());
vendors.append(vendor);
}
return vendors;
}
/*! Return a list of \l{DeviceClass}{DeviceClasses} describing all the devices supported by this plugin. */
QList<DeviceClass> DevicePlugin::supportedDevices() const
{
QList<DeviceClass> deviceClasses;
foreach (const QJsonValue &vendorJson, m_metaData.value("vendors").toArray()) {
VendorId vendorId = vendorJson.toObject().value("id").toString();
foreach (const QJsonValue &deviceClassJson, vendorJson.toObject().value("deviceClasses").toArray()) {
QJsonObject jo = deviceClassJson.toObject();
DeviceClass deviceClass(pluginId(), vendorId, jo.value("deviceClassId").toString());
deviceClass.setName(jo.value("name").toString());
DeviceClass::CreateMethods createMethods;
foreach (const QJsonValue &createMethodValue, jo.value("createMethods").toArray()) {
if (createMethodValue.toString() == "discovery") {
createMethods |= DeviceClass::CreateMethodDiscovery;
} else if (createMethodValue.toString() == "auto") {
createMethods |= DeviceClass::CreateMethodAuto;
} else {
createMethods |= DeviceClass::CreateMethodUser;
}
}
deviceClass.setCreateMethods(createMethods);
deviceClass.setDiscoveryParamTypes(parseParamTypes(jo.value("discoveryParamTypes").toArray()));
QString setupMethod = jo.value("setupMethod").toString();
if (setupMethod == "pushButton") {
deviceClass.setSetupMethod(DeviceClass::SetupMethodPushButton);
} else if (setupMethod == "displayPin") {
deviceClass.setSetupMethod(DeviceClass::SetupMethodDisplayPin);
} else if (setupMethod == "enterPin") {
deviceClass.setSetupMethod(DeviceClass::SetupMethodEnterPin);
} else {
deviceClass.setSetupMethod(DeviceClass::SetupMethodJustAdd);
}
deviceClass.setPairingInfo(jo.value("pairingInfo").toString());
deviceClass.setParamTypes(parseParamTypes(jo.value("paramTypes").toArray()));
QList<StateType> stateTypes;
foreach (const QJsonValue &stateTypesJson, jo.value("stateTypes").toArray()) {
QJsonObject st = stateTypesJson.toObject();
QVariant::Type t = QVariant::nameToType(st.value("type").toString().toLatin1().data());
StateType stateType(st.value("id").toString());
stateType.setName(st.value("name").toString());
stateType.setType(t);
stateType.setDefaultValue(st.value("defaultValue").toVariant());
stateTypes.append(stateType);
}
deviceClass.setStateTypes(stateTypes);
QList<ActionType> actionTypes;
foreach (const QJsonValue &actionTypesJson, jo.value("actionTypes").toArray()) {
QJsonObject at = actionTypesJson.toObject();
ActionType actionType(at.value("id").toString());
actionType.setName(at.value("name").toString());
actionType.setParamTypes(parseParamTypes(at.value("paramTypes").toArray()));
actionTypes.append(actionType);
}
deviceClass.setActionTypes(actionTypes);
QList<EventType> eventTypes;
foreach (const QJsonValue &eventTypesJson, jo.value("eventTypes").toArray()) {
QJsonObject et = eventTypesJson.toObject();
EventType eventType(et.value("id").toString());
eventType.setName(et.value("name").toString());
eventType.setParamTypes(parseParamTypes(et.value("paramTypes").toArray()));
eventTypes.append(eventType);
}
deviceClass.setEventTypes(eventTypes);
deviceClasses.append(deviceClass);
}
}
return deviceClasses;
}
/*! Override this if your plugin supports Device with DeviceClass::CreationMethodAuto.
This will be called at startup, after the configured devices have been loaded.
This is the earliest time you should start emitting autoDevicesAppeared(). If you
are monitoring some hardware/service for devices to appear, start monitoring now.
If you are building the devices based on a static list, you may emit
autoDevicesAppeard() in here.
*/
void DevicePlugin::startMonitoringAutoDevices()
{
}
/*! Reimplement this if you support a DeviceClass with createMethod \l{DeviceManager}{CreateMethodDiscovery}.
This will be called to discover Devices for the given \a deviceClassId with the given \a params. This will always
be an async operation. Return \l{DeviceManager}{DeviceErrorAsync} or \l{DeviceManager}{DeviceErrorNoError}
if the discovery has been started successfully. Return an appropriate error otherwise.
Once devices are discovered, emit devicesDiscovered(). */
DeviceManager::DeviceError DevicePlugin::discoverDevices(const DeviceClassId &deviceClassId, const ParamList &params)
{
Q_UNUSED(deviceClassId)
Q_UNUSED(params)
return DeviceManager::DeviceErrorCreationMethodNotSupported;
}
/*! This will be called when a new device is created. The plugin has the chance to do some setup.
Return \l{DeviceManager}{DeviceSetupStatusFailure} if something bad happened during the setup in which case the \a device
will be disabled. Return \l{DeviceManager}{DeviceSetupStatusSuccess} if everything went well. If you can't tell yet and
need more time to set up the \a device (note: you should never block in this method) you can
return \l{DeviceManager}{DeviceSetupStatusAsync}. In that case the \l{DeviceManager} will wait for you to emit
\l{DevicePlugin}{deviceSetupFinished} to report the status.
*/
DeviceManager::DeviceSetupStatus DevicePlugin::setupDevice(Device *device)
{
Q_UNUSED(device)
return DeviceManager::DeviceSetupStatusSuccess;
}
/*! This will be called when a \a device removed. The plugin has the chance to do some teardown.
* The device is still valid during this call, but already removed from the system.
* The device will be deleted as soon as this method returns.*/
void DevicePlugin::deviceRemoved(Device *device)
{
Q_UNUSED(device)
}
/*! Confirms the pairing of a \a deviceClassId with the given \a pairingTransactionId and \a params.
* Returns \l{DeviceManager::DeviceError}{DeviceError} to inform about the result. */
DeviceManager::DeviceSetupStatus DevicePlugin::confirmPairing(const PairingTransactionId &pairingTransactionId, const DeviceClassId &deviceClassId, const ParamList &params)
{
Q_UNUSED(pairingTransactionId)
Q_UNUSED(deviceClassId)
Q_UNUSED(params)
qWarning() << "Plugin does not implement pairing.";
return DeviceManager::DeviceSetupStatusFailure;
}
/*! Returns the configuration description of this DevicePlugin as a list of \l{ParamType}{ParamTypes}. */
QList<ParamType> DevicePlugin::configurationDescription() const
{
return QList<ParamType>();
}
/*! This will be called when the DeviceManager initializes the plugin and set up the things behind the scenes.
When implementing a new plugin, use \l{DevicePlugin::init()} instead in order to do initialisation work. */
void DevicePlugin::initPlugin(const QJsonObject &metaData, DeviceManager *deviceManager)
{
m_metaData = metaData;
m_deviceManager = deviceManager;
init();
}
QList<ParamType> DevicePlugin::parseParamTypes(const QJsonArray &array) const
{
QList<ParamType> paramTypes;
foreach (const QJsonValue &paramTypesJson, array) {
QJsonObject pt = paramTypesJson.toObject();
QVariant::Type t = QVariant::nameToType(pt.value("type").toString().toLatin1().data());
Q_ASSERT_X(t != QVariant::Invalid,
pluginName().toLatin1().data(),
QString("Invalid type %1 for param %2 in json file.")
.arg(pt.value("type").toString())
.arg(pt.value("name").toString()).toLatin1().data());
ParamType paramType(pt.value("name").toString(), t, pt.value("defaultValue").toVariant());
QVariantList allowedValues;
foreach (const QJsonValue &allowedTypesJson, pt.value("allowedValues").toArray()) {
allowedValues.append(allowedTypesJson.toVariant());
}
paramType.setAllowedValues(allowedValues);
paramType.setLimits(pt.value("minValue").toVariant(), pt.value("maxValue").toVariant());
paramTypes.append(paramType);
}
return paramTypes;
}
/*!
Returns a map containing the plugin configuration.
When implementing a new plugin, override this and fill in the empty configuration if your plugin requires any.
*/
ParamList DevicePlugin::configuration() const
{
return m_config;
}
/*!
Use this to retrieve the values for your parameters. Values might not be set
at the time when your plugin is loaded, but will be set soon after. Listen to
configurationValueChanged() to know when something changes.
When implementing a new plugin, specify in configurationDescription() what you want to see here.
Returns the config value of a \l{Param} with the given \a paramName of this DevicePlugin.
*/
QVariant DevicePlugin::configValue(const QString &paramName) const
{
foreach (const Param &param, m_config) {
if (param.name() == paramName) {
return param.value();
}
}
return QVariant();
}
/*!
Will be called by the DeviceManager to set a plugin's \a configuration.
*/
DeviceManager::DeviceError DevicePlugin::setConfiguration(const ParamList &configuration)
{
foreach (const Param &param, configuration) {
qDebug() << "setting config" << param;
DeviceManager::DeviceError result = setConfigValue(param.name(), param.value());
if (result != DeviceManager::DeviceErrorNoError) {
return result;
}
}
return DeviceManager::DeviceErrorNoError;
}
/*! Will be called by the DeviceManager to set a plugin's \l{Param} with the given \a paramName and \a value. */
DeviceManager::DeviceError DevicePlugin::setConfigValue(const QString &paramName, const QVariant &value)
{
bool found = false;
foreach (const ParamType &paramType, configurationDescription()) {
if (paramType.name() == paramName) {
if (!value.canConvert(paramType.type())) {
qWarning() << QString("Wrong parameter type for param %1. Got %2. Expected %3.")
.arg(paramName).arg(value.toString()).arg(QVariant::typeToName(paramType.type()));
return DeviceManager::DeviceErrorInvalidParameter;
}
if (paramType.maxValue().isValid() && value > paramType.maxValue()) {
qWarning() << QString("Value out of range for param %1. Got %2. Max: %3.")
.arg(paramName).arg(value.toString()).arg(paramType.maxValue().toString());
return DeviceManager::DeviceErrorInvalidParameter;
}
if (paramType.minValue().isValid() && value < paramType.minValue()) {
qWarning() << QString("Value out of range for param %1. Got: %2. Min: %3.")
.arg(paramName).arg(value.toString()).arg(paramType.minValue().toString());
return DeviceManager::DeviceErrorInvalidParameter;
}
found = true;
break;
}
}
if (!found) {
qWarning() << QString("Invalid parameter %1.").arg(paramName);
return DeviceManager::DeviceErrorInvalidParameter;
}
for (int i = 0; i < m_config.count(); i++) {
if (m_config.at(i).name() == paramName) {
m_config[i].setValue(value);
emit configValueChanged(paramName, value);
return DeviceManager::DeviceErrorNoError;
}
}
// Still here? need to create the param
Param newParam(paramName, value);
m_config.append(newParam);
emit configValueChanged(paramName, value);
return DeviceManager::DeviceErrorNoError;
}
/*!
Returns a pointer to the \l{DeviceManager}.
When implementing a plugin, use this to find the \l{Device}{Devices} you need.
*/
DeviceManager *DevicePlugin::deviceManager() const
{
return m_deviceManager;
}
/*! Returns a list of all configured devices belonging to this plugin. */
QList<Device *> DevicePlugin::myDevices() const
{
QList<DeviceClassId> myDeviceClassIds;
foreach (const DeviceClass &deviceClass, supportedDevices()) {
myDeviceClassIds.append(deviceClass.id());
}
QList<Device*> ret;
foreach (Device *device, deviceManager()->configuredDevices()) {
if (myDeviceClassIds.contains(device->deviceClassId())) {
ret.append(device);
}
}
return ret;
}
/*!
Find a certain device from myDevices() by its \a params. All parameters must
match or the device will not be found. Be prepared for nullptrs.
*/
Device *DevicePlugin::findDeviceByParams(const ParamList &params) const
{
foreach (Device *device, myDevices()) {
bool matching = true;
foreach (const Param &param, params) {
if (device->paramValue(param.name()) != param.value()) {
matching = false;
}
}
if (matching) {
return device;
}
}
return nullptr;
}
/*!
Transmits data contained in \a rawData on the \l{Radio433} devices, depending on the hardware requested by this plugin.
Returns true if, the \a rawData with a certain \a delay (pulse length) can be sent.
\sa Radio433, requiredHardware()
*/
bool DevicePlugin::transmitData(int delay, QList<int> rawData)
{
switch (requiredHardware()) {
case DeviceManager::HardwareResourceRadio433:
return deviceManager()->m_radio433->sendData(delay, rawData);
case DeviceManager::HardwareResourceRadio868:
qDebug() << "Radio868 not connected yet";
return false;
default:
qWarning() << "Unknown harware type. Cannot send.";
}
return false;
}