import Sensor

class ClusterNodeSensorsReadings:
	"""
		
	"""
	"""
	POWERSTATE_UNKNOWN=0
	POWERSTATE_OFF=1
	POWERSTATE_ON=2
	POWERSTATE_SLEEP=3
	"""
	def __init__(self, clusterNodeName):
		self.m_clusterNodeName = clusterNodeName
		self.m_sensors = {}
		#self.m_powerState = ClusterNodeStatus.POWERSTATE_UNKNOWN
		return
	def addSensor(self, sensor):
		self.m_sensors[sensor.m_name] = sensor
	def dump(self):
		for key,sensor in self.m_sensors.iteritems():
			sensor.dump()
		return
	#def getPowerState(self):
	#	return self.m_powerState
	def getLowestTemperature( self ):
		#log('ClusterNodeSensorsReadings::getLowestTemperature : start')
		lowestTemperature = 0.0
		lowestTemperatureIsDefined = False
		for key,sensor in self.m_sensors.iteritems():
			#log('ClusterNodeSensorsReadings::getLowestTemperature : start')
			if sensor.typeName() == 'Temperature':
				sensor.m_temperature
				if lowestTemperatureIsDefined:
					if sensor.m_temperature < lowestTemperature:
						lowestTemperature = sensor.m_temperature
				else:
					lowestTemperature = sensor.m_temperature
					lowestTemperatureIsDefined = True
		assert( lowestTemperatureIsDefined )
		#log('ClusterNodeSensorsReadings::getLowestTemperature : end')
		return lowestTemperature