def _sensorAlertHandler(self, incomingMessage):
logging.debug("[%s]: Received sensor alert." % self.fileName)
# extract sensor alert values
try:
alertLevels = incomingMessage["payload"]["alertLevels"]
# check if alertLevels is a list
if not isinstance(alertLevels, list):
# send error message back
try:
message = {"clientTime": int(time.time()),
"message": message["message"],
"error": "alertLevels not of type list"}
self.client.send(json.dumps(message))
except Exception as e:
pass
return False
# check if all elements of the alertLevels list
# are of type int
if not all(isinstance(item, int) for item in alertLevels):
# send error message back
try:
message = {"clientTime": int(time.time()),
"message": message["message"],
"error": "alertLevels items not of type int"}
self.client.send(json.dumps(message))
except Exception as e:
pass
return False
description = str(incomingMessage["payload"]["description"])
# parse received data (if data transfer is activated)
data = None
dataTransfer = bool(incomingMessage["payload"]["dataTransfer"])
if dataTransfer:
data = incomingMessage["payload"]["data"]
# check if data is of type dict
# => if not ignore it
if not isinstance(data, dict):
logging.warning("[%s]: Received data in sensor alert "
% self.fileName
+ "not valid. Ignoring it.")
data = None
dataTransfer = False
except Exception as e:
logging.exception("[%s]: Received sensor alert " % self.fileName
+ "invalid.")
# send error message back
try:
message = {"clientTime": int(time.time()),
"message": incomingMessage["message"],
"error": "received sensor alert invalid"}
self.client.send(json.dumps(message))
except Exception as e:
pass
return False
# sending sensor alert response
logging.debug("[%s]: Sending sensor alert " % self.fileName
+ "response message.")
try:
payload = {"type": "response", "result": "ok"}
message = {"clientTime": int(time.time()),
"message": "sensoralert", "payload": payload}
self.client.send(json.dumps(message))
except Exception as e:
logging.exception("[%s]: Sending sensor alert " % self.fileName
+ "response failed.")
return False
# trigger all alerts that have the same alert level
for alert in self.alerts:
for alertLevel in alertLevels:
if alertLevel in alert.alertLevels:
# trigger alert in an own thread to not block this one
alertTriggerProcess = AsynchronousAlertExecuter(alert)
alertTriggerProcess.sensorDescription = description
alertTriggerProcess.dataTransfer = dataTransfer
alertTriggerProcess.data = data
# set thread to daemon
# => threads terminates when main thread terminates
alertTriggerProcess.daemon = True
alertTriggerProcess.triggerAlert = True
alertTriggerProcess.start()
return True
def _sensorAlertHandler(self, incomingMessage):
logging.debug("[%s]: Received sensor alert." % self.fileName)
# extract sensor alert values
try:
alertLevels = incomingMessage["payload"]["alertLevels"]
# check if alertLevels is a list
if not isinstance(alertLevels, list):
# send error message back
try:
message = {
"clientTime": int(time.time()),
"message": message["message"],
"error": "alertLevels not of type list"
}
self.client.send(json.dumps(message))
except Exception as e:
pass
return False
# check if all elements of the alertLevels list
# are of type int
if not all(isinstance(item, int) for item in alertLevels):
# send error message back
try:
message = {
"clientTime": int(time.time()),
"message": message["message"],
"error": "alertLevels items not of type int"
}
self.client.send(json.dumps(message))
except Exception as e:
pass
return False
state = int(incomingMessage["payload"]["state"])
description = str(incomingMessage["payload"]["description"])
# parse received data (if data transfer is activated)
data = None
dataTransfer = bool(incomingMessage["payload"]["dataTransfer"])
if dataTransfer:
data = incomingMessage["payload"]["data"]
# check if data is of type dict
# => if not ignore it
if not isinstance(data, dict):
logging.warning("[%s]: Received data in sensor alert " %
self.fileName + "not valid. Ignoring it.")
data = None
dataTransfer = False
except Exception as e:
logging.exception("[%s]: Received sensor alert " % self.fileName +
"invalid.")
# send error message back
try:
message = {
"clientTime": int(time.time()),
"message": incomingMessage["message"],
"error": "received sensor alert invalid"
}
self.client.send(json.dumps(message))
except Exception as e:
pass
return False
# sending sensor alert response
logging.debug("[%s]: Sending sensor alert " % self.fileName +
"response message.")
try:
payload = {"type": "response", "result": "ok"}
message = {
"clientTime": int(time.time()),
"message": "sensoralert",
"payload": payload
}
self.client.send(json.dumps(message))
except Exception as e:
logging.exception("[%s]: Sending sensor alert " % self.fileName +
"response failed.")
return False
# trigger all alerts that have the same alert level
for alert in self.alerts:
for alertLevel in alertLevels:
if alertLevel in alert.alertLevels:
# trigger alert in an own thread to not block this one
alertTriggerProcess = AsynchronousAlertExecuter(alert)
alertTriggerProcess.sensorDescription = description
alertTriggerProcess.state = state
alertTriggerProcess.dataTransfer = dataTransfer
alertTriggerProcess.data = data
# set thread to daemon
# => threads terminates when main thread terminates
alertTriggerProcess.daemon = True
alertTriggerProcess.triggerAlert = True
alertTriggerProcess.start()
return True
