def toSensorDataFromJson(self, jsonData):
sdDict = json.loads(jsonData)
sd = SensorData()
sd.name = sdDict['name']
sd.timeStamp = sdDict['timeStamp']
sd.avgValue = sdDict['avgValue']
sd.minValue = sdDict['minValue']
sd.maxValue = sdDict['maxValue']
sd.curValue = sdDict['curValue']
sd.totValue = sdDict['totValue']
sd.sampleCount = sdDict['sampleCount']
return sd
def jsonTosensor(self,jsonData):
sensedataDict = json.loads(jsonData)
print(" decode [pre] --> " + str(sensedataDict))
sensedata = SensorData('Temperature',0,30)
sensedata.name = sensedataDict['name']
sensedata.timeStamp = sensedataDict['timeStamp']
sensedata.avgVal = sensedataDict['avgVal']
sensedata.minVal = sensedataDict['minVal']
sensedata.maxVal = sensedataDict['maxVal']
sensedata.curVal = sensedataDict['curVal']
sensedata.totValue = sensedataDict['totValue']
sensedata.sampleCount = sensedataDict['sampleCount']
print(" decode [post] --> " + str(sensedata))
return sensedata
def toSensorDataFromJson(self,jsonData):
sdDict = json.loads(jsonData)
print(" decode [pre] --> " + str(sdDict))
sd = SensorData()
sd.name = sdDict['name']
sd.timeStamp = sdDict['timeStamp']
sd.avgValue = sdDict['avgValue']
sd.minValue = sdDict['minValue']
sd.maxValue = sdDict['maxValue']
sd.curValue = sdDict['curValue']
sd.totValue = sdDict['totValue']
sd.sampleCount = sdDict['sampleCount']
print(" decode [post] --> " + str(sd))
return sd
from labs.common.SensorData import SensorData
from labs.common.DataUtil import DataUtil
from labs.module06.MqttClientConnector import MqttClientConnector
topic = "Temperature Sensor"
config = ConfigUtil('../../../config/ConnectedDevicesConfig.props')
host = config.getProperty(ConfigConst.MQTT_GATEWAY_SECTION,
ConfigConst.HOST_KEY)
#Creating Sensor Data
sensorData = SensorData(topic, 10, 30)
sensorData.curVal = uniform(float(sensorData.getMinValue()),
float(sensorData.getMaxValue()))
sensorData.addValue(sensorData.curVal)
sensorData.diffVal = sensorData.curVal - sensorData.avgVal
sensorData.timestamp = datetime.now().replace(microsecond=0)
sensorData.sampleCount = 1
logging.info('\nSensorData for sending: ')
print("\n" + str(sensorData))
#Converting SensorData to json format
data = DataUtil()
jsondata = data.sensorTojson(sensorData)
logging.info('\nSensorData after Json conversion: ')
print("\nSensorData in Json Format for publishing: \n" + str(jsondata) + "\n")
pubclient = MqttClientConnector()
#Function call to publish the Json to the MQTT broker through MQTT ClientConnector
pubclient.publish(host, topic, jsondata)