def toSensorDataFromJson(self, string):
act = SensorData()
data = json.loads(string)
logging.info(data)
act.name = data['name']
act.reading_number = data['reading_number']
act.current = data['current']
act.min_value = data['min_value']
act.max_value = data['max_value']
act.total_value = data['total_value']
act.timestamp = data['timestamp']
logging.info("New actuator generated from JSon \n")
return act
from labs.common.SensorData import SensorData
from labs.module06.MqttClientConnector import MqttClientConnector
topic = "Temperature Sensor"
config = ConfigUtil('../../../config/ConnectedDevicesConfig.props');
host = config.getProperty(ConfigConst.ConfigConst.MQTT_CLOUD_SECTION, ConfigConst.ConfigConst.HOST_KEY)
'''
Creating the Sensor Data
'''
sensor = SensorData(topic,0,30)
sensor.curValue = uniform(float(sensor.getMinValue()), float(sensor.getMaxValue()));
sensor.addValue(sensor.curValue);
sensor.diffValue = sensor.curValue - sensor.avgVal;
sensor.timestamp = datetime.now();
logging.info('SensorData to be sent:')
print("Sensor data before converting to Json: " + str(sensor));
'''
Converting the Sensor Data to the JSON format
'''
data = DataUtil()
jsonData = data.SensorDataToJson(sensor)
logging.info('SensorData converted into Json:')
print("SensorData in Json Format before publishing" + "\n" + str(jsonData) + "\n")
pub_client = MqttClientConnector();
'''
This Function is used to publish the JSON data to the MQTT broker through
the MQTT ClientConnector class
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)