class ConstrainedDeviceApp():
"""
Definition of the ConstrainedDeviceApp class.
"""
def __init__(self):
"""
Initialization of class.
@param path The name of the resource to apply to the URI.
"""
self.sysPerfManager = SystemPerformanceManager()
logging.info("Initializing CDA...")
self.devDataManager = DeviceDataManager()
def startApp(self):
"""
Start the CDA. Calls startManager() on the device data manager instance.
"""
self.sysPerfManager.startManager()
logging.info("Starting CDA...")
self.devDataManager.startManager()
logging.info("CDA started.")
def stopApp(self, code: int):
"""
Stop the CDA. Calls stopManager() on the device data manager instance.
"""
self.sysPerfManager.stopManager()
logging.info("CDA stopping...")
self.devDataManager.stopManager()
logging.info("CDA stopped with exit code %s.", str(code))
def parseArgs(self, args):
"""
Parse command line args.
@param args The arguments to parse.
"""
logging.info("Parsing command line args...")
class ConstrainedDeviceApp:
"""
Definition of the ConstrainedDeviceApp class.
"""
def __init__(self):
"""
Initialization of class.
@param path The name of the resource to apply to the URI.
"""
logging.info("Initializing CDA...")
self.sysPerfManager = SystemPerformanceManager()
#self.pollRate = ConfigUtil.getInteger(ConfigConst.CONSTRAINED_DEVICE, ConfigConst.POLL_CYCLES_KEY, ConfigConst.DEFAULT_POLL_CYCLES)
def startApp(self):
"""
Start the CDA. Calls startManager() on the device data manager instance.
"""
logging.info("Starting CDA...")
self.sysPerfManager.startManager()
logging.info("CDA started.")
def stopApp(self, code: int):
"""
Stop the CDA. Calls stopManager() on the device data manager instance.
"""
logging.info("CDA stopping...")
self.sysPerfManager.stopManager()
logging.info("CDA stopped with exit code %s.", str(code))
def parseArgs(self, args):
"""
Parse command line args.
@param args The arguments to parse.
"""
logging.info("Parsing command line args...")
class SystemPerformanceManagerTest(unittest.TestCase):
"""
This test case class contains very basic unit tests for
SystemPerformanceManager. It should not be considered complete,
but serve as a starting point for the student implementing
additional functionality within their Programming the IoT
environment.
NOTE: This test MAY require the sense_emu_gui to be running,
depending on whether or not the 'enableEmulator' flag is
True within the ConstraineDevice section of PiotConfig.props.
If so, it must have access to the underlying libraries that
support the pisense module. On Windows, one way to do
this is by installing pisense and sense-emu within the
Bash on Ubuntu on Windows environment and then execute this
test case from the command line, as it will likely fail
if run within an IDE in native Windows.
"""
@classmethod
def setUpClass(self):
logging.basicConfig(
format='%(asctime)s:%(module)s:%(levelname)s:%(message)s',
level=logging.DEBUG)
logging.info("Testing SystemPerformanceManager class...")
self.spMgr = SystemPerformanceManager()
self.defaultMsgListener = DefaultDataMessageListener()
self.spMgr.setDataMessageListener(self.defaultMsgListener)
def setUp(self):
pass
def tearDown(self):
pass
def testStartAndStopManager(self):
self.spMgr.startManager()
sleep(60)
self.spMgr.stopManager()
class DeviceDataManager(IDataMessageListener):
"""
Shell representation of class for student implementation.
"""
def __init__(self, enableMqtt: bool = True, enableCoap: bool = False):
# set enable connection
self.enableMqtt = enableMqtt
self.enableCoap = enableCoap
# load config
self.configUtil = ConfigUtil()
self.enableEmulator = self.configUtil.getBoolean(ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.ENABLE_EMULATOR_KEY)
self.stepmotor = StepMotorAdapterTask()
# create system Perf manager
self.sysPerfManager = SystemPerformanceManager()
# set sensor config
self.sam = SensorAdapterManager(useEmulator=self.enableEmulator)
#set actuator config
self.aam = ActuatorAdapterManager(useEmulator=self.enableEmulator)
#set data generation config
self.enableHandleTempChangeOnDevice = self.configUtil.getBoolean(ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.ENABLE_HANDLE_TEMP_CHANGE_ON_DEVICE_KEY)
self.triggerHvacTempFloor = self.configUtil.getFloat(ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_HVAC_TEMP_FLOOR_KEY);
self.triggerHvacTempCeiling = self.configUtil.getFloat(ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_HVAC_TEMP_CEILING_KEY);
#self.stepmotor.moveTo(-40,-40,True)
# set Mqtt client
if enableMqtt is True:
self.mqttClient = MqttClientConnector()
#self.mqttClient.subscribeToTopic(ResourceNameEnum.CDA_ACTUATOR_RESPONSE_RESOURCE.value)
#self.mqttClient.subscribeToTopic(ResourceNameEnum.CDA_ACTUATOR_CMD_RESOURCE.value)
self.mqttClient.subscribeToTopic("ProgrammingIoT/StepMotor/Instruction")
#self.mqttClient.mc.message_callback_add(callback=self.actuatorCallBack, sub=ResourceNameEnum.CDA_ACTUATOR_CMD_RESOURCE.value)
self.mqttClient.mc.message_callback_add(callback=self.stepMotorCallBack, sub="ProgrammingIoT/StepMotor/Instruction")
def actuatorCallBack(self,client, userdata, message):
logging.info("MQTT CallBack:%s,%s" % (message.topic, message.payload))
self._handleIncomingDataAnalysis(message)
def stepMotorCallBack(self,client, userdata, message):
logging.info("MQTT CallBack:%s,%s" % (message.topic, message.payload))
point = str(message.payload.decode()).split(",")
if len(point) == 2:
self.stepmotor.moveTo(int(point[0]),int(point[1]),True)
def handleActuatorCommandResponse(self, data: ActuatorData) -> bool:
logging.info("handleActuatorCommandResponse called")
#pass data to handler
super().handleActuatorCommandResponse(data)
#translate data to json and set updstream
du = DataUtil()
self._handleUpstreamTransmission(ResourceNameEnum.CDA_ACTUATOR_RESPONSE_RESOURCE.value, du.actuatorDataToJson(data))
def handleIncomingMessage(self, resourceEnum: ResourceNameEnum, msg: str) -> bool:
logging.info("handleIncommingMessage called")
#translate json to object and pass it to analysis
du = DataUtil()
du.jsonToActuatorData(msg)
self._handleIncomingDataAnalysis(msg)
def handleSensorMessage(self, data: SensorData) -> bool:
logging.info("handleSensorMessage called")
super().handleSensorMessage(data)
# translate sensor data to json and handle it
du = DataUtil()
self._handleUpstreamTransmission(ResourceNameEnum.CDA_SENSOR_MSG_RESOURCE.value, du.sensorDataToJson(data))
self._handleSensorDataAnalysis(data)
def handleSystemPerformanceMessage(self, data: SystemPerformanceData) -> bool:
logging.info("handleSystemPerformanceMessage called")
#translate sys perf data to json and set upstream
du = DataUtil()
self._handleUpstreamTransmission(ResourceNameEnum.CDA_SYSTEM_PERF_MSG_RESOURC.value, du.systemPerformanceDataToJson(data))
def startManager(self):
#start manager
self.sysPerfManager.startManager()
self.sam.startManager()
self.sam.setDataMessageListener(self)
self.mqttClient.connectClient()
def stopManager(self):
#stop manager
self.sysPerfManager.stopManager()
self.sam.stopManager()
self.mqttClient.disconnectClient()
def _handleIncomingDataAnalysis(self, msg: str):
"""
Call this from handleIncomeMessage() to determine if there's
any action to take on the message. Steps to take:
1) Validate msg: Most will be ActuatorData, but you may pass other info as well.
2) Convert msg: Use DataUtil to convert if appropriate.
3) Act on msg: Determine what - if any - action is required, and execute.
"""
logging.info("_handleIncomingDataAnalysis called，msg:"+str(msg))
#du = DataUtil()
#self.aam.sendActuatorCommand(du.jsonToActuatorData(msg))
def _handleSensorDataAnalysis(self, data: SensorData):
"""
Call this from handleSensorMessage() to determine if there's
any action to take on the message. Steps to take:
1) Check config: Is there a rule or flag that requires immediate processing of data?
2) Act on data: If # 1 is true, determine what - if any - action is required, and execute.
"""
logging.info("_handleSensorDataAnalysis called，msg:"+str(data))
if self.enableHandleTempChangeOnDevice is True:
hvac = ActuatorData(ActuatorData.HVAC_ACTUATOR_TYPE)
if data.getValue() < self.triggerHvacTempCeiling and data.getValue() > self.triggerHvacTempFloor:
# start hvac when in trigger range
hvac.setCommand(ActuatorData.COMMAND_ON)
else:
# stop hvac when not in range
hvac.setCommand(ActuatorData.COMMAND_OFF)
# send command
self.aam.sendActuatorCommand(hvac)
def handleActuatorCommandMessage(self, data: ActuatorData) -> bool:
if data:
logging.info("Processing actuator command message.")
# TODO: add further validation before sending the command
self.aam.sendActuatorCommand(data)
return True
else:
logging.warning("Received invalid ActuatorData command message. Ignoring.")
return False
def _handleUpstreamTransmission(self, resourceName: ResourceNameEnum, msg: str):
"""
Call this from handleActuatorCommandResponse(), handlesensorMessage(), and handleSystemPerformanceMessage()
to determine if the message should be sent upstream. Steps to take:
1) Check connection: Is there a client connection configured (and valid) to a remote MQTT or CoAP server?
2) Act on msg: If # 1 is true, send message upstream using one (or both) client connections.
"""
logging.info("_handleUpstreamTransmission called")
# send message to mqtt broker
if self.enableMqtt is True:
self.mqttClient.publishMessage(resourceName, msg)
class DeviceDataManager(IDataMessageListener):
"""
Shell representation of class for student implementation.
"""
def __init__(self, enableMqtt: bool = True, enableCoap: bool = False):
self.sysPerfManager = SystemPerformanceManager()
self.sensorAdapterManager = SensorAdapterManager()
self.actuatorAdapterManager = ActuatorAdapterManager()
self.configUtil = ConfigUtil()
self.enableHandleTempChangeOnDevice = self.configUtil.getBoolean(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.ENABLE_HANDLE_TEMP_CHANGE_ON_DEVICE_KEY)
self.triggerHvacTempFloor = self.configUtil.getFloat(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_HVAC_TEMP_FLOOR_KEY)
self.triggerHvacTempCeiling = self.configUtil.getFloat(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_HVAC_TEMP_CEILING_KEY)
def handleActuatorCommandResponse(self, data: ActuatorData) -> bool:
logging("handleActuatorCommandResponse method is called...")
self._handleUpstreamTransmission(
ResourceNameEnum.CDA_ACTUATOR_RESPONSE_RESOURCE,
DataUtil.actuatorDataToJson(self, data))
pass
def handleIncomingMessage(self, resourceEnum: ResourceNameEnum,
msg: str) -> bool:
logging("handleIncomingMessage method is called...")
self._handleIncomingDataAnalysis(DataUtil.jsonToActuatorData(
self, msg))
pass
def handleSensorMessage(self, data: SensorData) -> bool:
logging("handleSensorMessage method is called...")
self._handleUpstreamTransmission(
ResourceNameEnum.CDA_SENSOR_MSG_RESOURCE,
DataUtil.sensorDataToJson(self, data))
pass
def handleSystemPerformanceMessage(self,
data: SystemPerformanceData) -> bool:
logging("handleSystemPerformanceMessage method is called...")
self._handleUpstreamTransmission(
ResourceNameEnum.CDA_SYSTEM_PERF_MSG_RESOURCE,
DataUtil.systemPerformanceDataToJson(self, data))
pass
def startManager(self):
logging.info("Started DeviceDataManager.")
self.sysPerfManager.startManager()
self.sensorAdapterManager.startManager()
pass
def stopManager(self):
logging.info("Stopped DeviceDataManager.")
self.sysPerfManager.stopManager()
self.sensorAdapterManager.stopManager()
pass
def _handleIncomingDataAnalysis(self, msg: str):
"""
Call this from handleIncomeMessage() to determine if there's
any action to take on the message. Steps to take:
1) Validate msg: Most will be ActuatorData, but you may pass other info as well.
2) Convert msg: Use DataUtil to convert if appropriate.
3) Act on msg: Determine what - if any - action is required, and execute.
"""
logging("_handleIncomingDataAnalysis method is called...")
self.actuatorAdapterManager.sendActuatorCommand(
DataUtil.jsonToActuatorData(self, msg))
pass
def _handleSensorDataAnalysis(self, data: SensorData):
"""
Call this from handleSensorMessage() to determine if there's
any action to take on the message. Steps to take:
1) Check config: Is there a rule or flag that requires immediate processing of data?
2) Act on data: If # 1 is true, determine what - if any - action is required, and execute.
"""
logging("_handleSensorDataAnalysis method is called...")
if (self.enableHandleTempChangeOnDevice == True):
self.actuatorData = ActuatorData()
self.actuatorData.actuator_type = ActuatorData.HVAC_ACTUATOR_TYPE
self.actuatorData.COMMAND_ON
self.actuatorAdapterManager.sendActuatorCommand(self.actuatorData)
pass
def _handleUpstreamTransmission(self, resourceName: ResourceNameEnum,
msg: str):
"""
Call this from handleActuatorCommandResponse(), handlesensorMessage(), and handleSystemPerformanceMessage()
to determine if the message should be sent upstream. Steps to take:
1) Check connection: Is there a client connection configured (and valid) to a remote MQTT or CoAP server?
2) Act on msg: If # 1 is true, send message upstream using one (or both) client connections.
"""
logging("_handleUpstreamTransmission method is called...")
pass
class DeviceDataManager(IDataMessageListener):
"""
Shell representation of class for student implementation.
"""
def __init__(self, enableMqtt: bool = True, enableCoap: bool = False):
"""
Initialization of class.
Create an instance of DeviceDataManager
"""
self.configUtil = ConfigUtil()
self.enableEmulator = self.configUtil.getBoolean(
ConfigConst.CONSTRAINED_DEVICE, ConfigConst.ENABLE_EMULATOR_KEY)
self.enableRedis = False
self.sysPerfManager = SystemPerformanceManager()
self.sysPerfManager.setDataMessageListener(self)
self.sensorAdapterManager = SensorAdapterManager(
useEmulator=self.enableEmulator)
self.sensorAdapterManager.setDataMessageListener(self)
self.actuatorAdapterManager = ActuatorAdapterManager(
useEmulator=self.enableEmulator)
self.actuatorAdapterManager.setDataMessageListener(self)
##add by miaoyao @10/30/2020
if self.enableRedis:
self.redisClient = RedisPersistenceAdapter()
self.enableHandleTempChangeOnDevice = self.configUtil.getBoolean(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.ENABLE_HANDLE_TEMP_CHANGE_ON_DEVICE_KEY)
self.triggerHvacTempFloor = self.configUtil.getFloat(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_HVAC_TEMP_FLOOR_KEY)
self.triggerHvacTempCeiling = self.configUtil.getFloat(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_HVAC_TEMP_CEILING_KEY)
##add by miaoyao for final project
self.enableHandleSoilHumidityChangeOnDevice = self.configUtil.getBoolean(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.ENABLE_HANDLE_SOIL_HUMIDITY_CHANGE_ON_DEVICE_KEY)
self.triggerWaterDeviceHumiFloor = self.configUtil.getFloat(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_WATER_SOIL_HUMI_FLOOR_KEY)
self.triggerWaterDeviceHumiCeiling = self.configUtil.getFloat(
ConfigConst.CONSTRAINED_DEVICE,
ConfigConst.TRIGGER_WATER_SOIL_HUMI_CEILING_KEY)
##add by miaoyao @11/02/2020
##self.enableMqtt = self.configUtil.getBoolean(ConfigConst.CONSTRAINED_DEVICE, ConfigConst.ENABLE_MQTT_KEY)
self.enableMqtt = enableMqtt
self.enableCoap = enableCoap
if self.enableMqtt:
self.mqttClient = MqttClientConnector()
self.mqttClient.setDataMessageListener(self)
if self.enableCoap:
self.coapClient = CoapClientConnector()
self.coapClient.setDataMessageListener(self)
def handleActuatorCommandResponse(self, data: ActuatorData) -> bool:
"""
handle the ActuatorCommandResponse
@return bool
"""
# Use the DataUtil class to convert the ActuatorData to JSON.
logging.info(
"[CDA_CALLBACK]----->>>The handleActuatorCommandResponse method is being called"
)
adJson = DataUtil.actuatorDataToJson(self, data)
self._handleUpstreamTransmission(
ResourceNameEnum.CDA_ACTUATOR_RESPONSE_RESOURCE, adJson)
def handleActuatorCommandMessage(self, data: ActuatorData) -> bool:
"""
handle the handleActuatorCommandMessage
@return bool
"""
logging.info(
"[CDA_CALLBACK]----->>>The handleActuatorCommandMessage method is being called"
)
if data:
logging.info("Processing actuator command message.")
# TODO: add further validation before sending the command
self.actuatorAdapterManager.sendActuatorCommand(data)
return True
else:
logging.warning(
"Received invalid ActuatorData command message. Ignoring.")
return False
def handleIncomingMessage(self, resourceEnum: ResourceNameEnum,
msg: str) -> bool:
"""
handle the IncomingMessage
@return bool
"""
logging.info(
"[CDA_CALLBACK]----->>>The handleIncomingMessage method is being called"
)
# Use the DataUtil class to convert the msg content (which should be JSON) to an ActuatorData instance
ad = DataUtil.jsonToActuatorData(self, msg)
self._handleIncomingDataAnalysis(msg)
def handleSensorMessage(self, data: SensorData) -> bool:
"""
handle the SensorMessage
@return bool
"""
logging.info(
"[CDA_CALLBACK]----->>>The handleSensorMessage method is being called"
)
# Use the DataUtil class to convert the SensorData to JSON
sdJosn = DataUtil.sensorDataToJson(self, data)
self._handleUpstreamTransmission(
ResourceNameEnum.CDA_SENSOR_MSG_RESOURCE, sdJosn)
self._handleSensorDataAnalysis(data)
if self.enableRedis:
self.redisClient.storeData(
ResourceNameEnum.CDA_SENSOR_MSG_RESOURCE, data)
def handleSystemPerformanceMessage(self,
data: SystemPerformanceData) -> bool:
"""
handle the SystemPerformanceMessage
@return bool
"""
logging.info(
"[CDA_CALLBACK]----->>>The handleSystemPerformanceMessage method is being called"
)
spmJson = DataUtil.systemPerformanceDataToJson(self, data)
self._handleUpstreamTransmission(
ResourceNameEnum.CDA_SYSTEM_PERF_MSG_RESOURCE, spmJson)
def startManager(self):
"""
Start the DeviceDataManager.
Calls startManager() on the sysPerfManager instance.
Calls startManager() on the sensorAdapterManager instance.
"""
logging.info("----->>>The DeviceDataManager will be started")
self.sysPerfManager.startManager()
self.sensorAdapterManager.startManager()
if self.enableRedis:
self.redisClient.connectClient()
if self.enableMqtt:
self.mqttClient.connectClient()
def stopManager(self):
"""
Stop the DeviceDataManager.
Calls stopManager() on the sysPerfManager instance.
Calls stopManager() on the sensorAdapterManager instance.
"""
self.sysPerfManager.stopManager()
self.sensorAdapterManager.stopManager()
if self.enableRedis:
self.redisClient.disconnectClient()
if self.enableMqtt:
self.mqttClient.disconnectClient()
logging.info("----->>>The DeviceDataManager stopped")
def _handleIncomingDataAnalysis(self, msg: str):
"""
Call this from handleIncomeMessage() to determine if there's
any action to take on the message. Steps to take:
1) Validate msg: Most will be ActuatorData, but you may pass other info as well.
2) Convert msg: Use DataUtil to convert if appropriate.
3) Act on msg: Determine what - if any - action is required, and execute.
"""
logging.info(
"[CDA_CALLBACK]----->>>The _handleIncomingDataAnalysis method is being called"
)
ad = DataUtil.jsonToActuatorData(self, msg)
self.actuatorAdapterManager.sendActuatorCommand(ad)
def _handleSensorDataAnalysis(self, data: SensorData):
"""
Call this from handleSensorMessage() to determine if there's
any action to take on the message. Steps to take:
1) Check config: Is there a rule or flag that requires immediate processing of data?
2) Act on data: If # 1 is true, determine what - if any - action is required, and execute.
"""
logging.info(
"[CDA_CALLBACK]----->>>The _handleSensorDataAnalysis method is being called"
)
"""
"""
if self.enableHandleTempChangeOnDevice and data.getSensorType(
) == SensorData.TEMP_SENSOR_TYPE:
ad = ActuatorData(actuatorType=ActuatorData.HVAC_ACTUATOR_TYPE)
value = data.getValue()
if value >= self.triggerHvacTempFloor and value <= self.triggerHvacTempCeiling:
ad.setCommand(ActuatorData.COMMAND_OFF)
else:
ad.setCommand(ActuatorData.COMMAND_ON)
self.actuatorAdapterManager.sendActuatorCommand(ad)
"""
"""
if self.enableHandleSoilHumidityChangeOnDevice and data.getSensorType(
) == SensorData.SOIL_HUMIDITY_SENSOR_TYPE:
ad = ActuatorData(
actuatorType=ActuatorData.SPRINKLER_ACTUATOR_TYPE)
value = data.getValue()
if value >= self.triggerWaterDeviceHumiCeiling:
ad.setCommand(ActuatorData.COMMAND_OFF)
self.actuatorAdapterManager.sendActuatorCommand(ad)
elif value <= self.triggerWaterDeviceHumiFloor:
ad.setCommand(ActuatorData.COMMAND_ON)
self.actuatorAdapterManager.sendActuatorCommand(ad)
self.coapClient.sendGetRequest(
ResourceNameEnum.CDA_ACTUATOR_CMD_RESOURCE, False, 5)
else:
self.coapClient.sendGetRequest(
ResourceNameEnum.CDA_CLOUD_ACTUATOR_CMD_RESOURCE, False, 5)
def _handleUpstreamTransmission(self, resourceName: ResourceNameEnum,
msg: str):
"""
Call this from handleActuatorCommandResponse(), handlesensorMessage(), and handleSystemPerformanceMessage()
to determine if the message should be sent upstream. Steps to take:
1) Check connection: Is there a client connection configured (and valid) to a remote MQTT or CoAP server?
2) Act on msg: If # 1 is true, send message upstream using one (or both) client connections.
"""
logging.info(
"[callback]----->>>The _handleUpstreamTransmission method is being called"
)
if self.enableMqtt:
self.mqttClient.publishMessage(resourceName, msg)
"""