def execute(self):
# time on which the last full sensor states were sent
# to the server
lastFullStateSent = 0
# Get reference to server communication object.
while self.connection is None:
time.sleep(0.5)
self.connection = self.globalData.serverComm
self._isInitialized = True
while True:
# check if the client is connected to the server
# => wait and continue loop until client is connected
if not self.connection.isConnected():
time.sleep(0.5)
continue
# poll all sensors and check their states
for sensor in self.sensors:
oldState = sensor.getState()
sensor.updateState()
currentState = sensor.getState()
# Check if a sensor alert is forced to send to the server.
# => update already known state and continue
sensorAlert = sensor.forceSendAlert()
if sensorAlert:
oldState = currentState
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorAlert = True
asyncSenderProcess.sendSensorAlertSensorAlert = sensorAlert
asyncSenderProcess.start()
continue
# check if the current state is the same
# than the already known state => continue
elif oldState == currentState:
continue
# check if the current state is an alert triggering state
elif currentState == sensor.triggerState:
# check if the sensor triggers a sensor alert
# => send sensor alert to server
if sensor.triggerAlert:
logging.info("[%s]: Sensor alert " % self.fileName +
"triggered by '%s'." % sensor.description)
# Create sensor alert object to send to the server.
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = sensor.id
sensorAlert.state = 1
sensorAlert.hasOptionalData = sensor.hasOptionalData
sensorAlert.optionalData = sensor.optionalData
sensorAlert.changeState = sensor.changeState
sensorAlert.hasLatestData = sensor.hasLatestData
sensorAlert.dataType = sensor.sensorDataType
sensorAlert.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorAlert = True
asyncSenderProcess.sendSensorAlertSensorAlert = \
sensorAlert
asyncSenderProcess.start()
# if sensor does not trigger sensor alert
# => just send changed state to server
else:
logging.debug("[%s]: State " % self.fileName +
"changed by '%s'." % sensor.description)
# Create state change object to send to the server.
stateChange = StateChange()
stateChange.clientSensorId = sensor.id
stateChange.state = 1
stateChange.dataType = sensor.sensorDataType
stateChange.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendStateChange = True
asyncSenderProcess.sendStateChangeStateChange = \
stateChange
asyncSenderProcess.start()
# only possible situation left => sensor changed
# back from triggering state to a normal state
else:
# check if the sensor triggers a sensor alert when
# state is back to normal
# => send sensor alert to server
if sensor.triggerAlertNormal:
logging.info("[%s]: Sensor alert " % self.fileName +
"for back to normal state " +
"triggered by '%s'." % sensor.description)
# Create sensor alert object to send to the server.
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = sensor.id
sensorAlert.state = 0
sensorAlert.hasOptionalData = sensor.hasOptionalData
sensorAlert.optionalData = sensor.optionalData
sensorAlert.changeState = sensor.changeState
sensorAlert.hasLatestData = sensor.hasLatestData
sensorAlert.dataType = sensor.sensorDataType
sensorAlert.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorAlert = True
asyncSenderProcess.sendSensorAlertSensorAlert = \
sensorAlert
asyncSenderProcess.start()
# if sensor does not trigger sensor alert when
# state is back to normal
# => just send changed state to server
else:
logging.debug("[%s]: State " % self.fileName +
"changed by '%s'." % sensor.description)
# Create state change object to send to the server.
stateChange = StateChange()
stateChange.clientSensorId = sensor.id
stateChange.state = 0
stateChange.dataType = sensor.sensorDataType
stateChange.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendStateChange = True
asyncSenderProcess.sendStateChangeStateChange = \
stateChange
asyncSenderProcess.start()
# Poll all sensors if they want to force an update that should
# be send to the server.
for sensor in self.sensors:
stateChange = sensor.forceSendState()
if stateChange:
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendStateChange = True
asyncSenderProcess.sendStateChangeStateChange = stateChange
asyncSenderProcess.start()
# check if the last state that was sent to the server
# is older than 60 seconds => send state update
utcTimestamp = int(time.time())
if (utcTimestamp - lastFullStateSent) > 60:
logging.debug("[%s]: Last state " % self.fileName +
"timed out.")
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorsState = True
asyncSenderProcess.start()
# update time on which the full state update was sent
lastFullStateSent = utcTimestamp
time.sleep(0.5)
def execute(self):
# time on which the last full sensor states were sent
# to the server
lastFullStateSent = 0
# Get reference to server communication object.
while self.connection is None:
time.sleep(0.5)
self.connection = self.globalData.serverComm
self._isInitialized = True
while True:
# check if the client is connected to the server
# => wait and continue loop until client is connected
if not self.connection.isConnected():
time.sleep(0.5)
continue
# poll all sensors and check their states
for sensor in self.sensors:
oldState = sensor.getState()
sensor.updateState()
currentState = sensor.getState()
# Check if a sensor alert is forced to send to the server.
# => update already known state and continue
sensorAlert = sensor.forceSendAlert()
if sensorAlert:
oldState = currentState
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorAlert = True
asyncSenderProcess.sendSensorAlertSensorAlert = sensorAlert
asyncSenderProcess.start()
continue
# check if the current state is the same
# than the already known state => continue
elif oldState == currentState:
continue
# check if the current state is an alert triggering state
elif currentState == sensor.triggerState:
# check if the sensor triggers a sensor alert
# => send sensor alert to server
if sensor.triggerAlert:
logging.info("[%s]: Sensor alert " % self.fileName
+ "triggered by '%s'." % sensor.description)
# Create sensor alert object to send to the server.
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = sensor.id
sensorAlert.state = 1
sensorAlert.hasOptionalData = sensor.hasOptionalData
sensorAlert.optionalData = sensor.optionalData
sensorAlert.changeState = sensor.changeState
sensorAlert.hasLatestData = sensor.hasLatestData
sensorAlert.dataType = sensor.sensorDataType
sensorAlert.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorAlert = True
asyncSenderProcess.sendSensorAlertSensorAlert = \
sensorAlert
asyncSenderProcess.start()
# if sensor does not trigger sensor alert
# => just send changed state to server
else:
logging.debug("[%s]: State " % self.fileName
+ "changed by '%s'." % sensor.description)
# Create state change object to send to the server.
stateChange = StateChange()
stateChange.clientSensorId = sensor.id
stateChange.state = 1
stateChange.dataType = sensor.sensorDataType
stateChange.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendStateChange = True
asyncSenderProcess.sendStateChangeStateChange = \
stateChange
asyncSenderProcess.start()
# only possible situation left => sensor changed
# back from triggering state to a normal state
else:
# check if the sensor triggers a sensor alert when
# state is back to normal
# => send sensor alert to server
if sensor.triggerAlertNormal:
logging.info("[%s]: Sensor alert " % self.fileName
+ "for back to normal state "
+ "triggered by '%s'." % sensor.description)
# Create sensor alert object to send to the server.
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = sensor.id
sensorAlert.state = 0
sensorAlert.hasOptionalData = sensor.hasOptionalData
sensorAlert.optionalData = sensor.optionalData
sensorAlert.changeState = sensor.changeState
sensorAlert.hasLatestData = sensor.hasLatestData
sensorAlert.dataType = sensor.sensorDataType
sensorAlert.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorAlert = True
asyncSenderProcess.sendSensorAlertSensorAlert = \
sensorAlert
asyncSenderProcess.start()
# if sensor does not trigger sensor alert when
# state is back to normal
# => just send changed state to server
else:
logging.debug("[%s]: State " % self.fileName
+ "changed by '%s'." % sensor.description)
# Create state change object to send to the server.
stateChange = StateChange()
stateChange.clientSensorId = sensor.id
stateChange.state = 0
stateChange.dataType = sensor.sensorDataType
stateChange.sensorData = sensor.sensorData
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendStateChange = True
asyncSenderProcess.sendStateChangeStateChange = \
stateChange
asyncSenderProcess.start()
# Poll all sensors if they want to force an update that should
# be send to the server.
for sensor in self.sensors:
stateChange = sensor.forceSendState()
if stateChange:
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendStateChange = True
asyncSenderProcess.sendStateChangeStateChange = stateChange
asyncSenderProcess.start()
# check if the last state that was sent to the server
# is older than 60 seconds => send state update
if (time.time() - lastFullStateSent) > 60:
logging.debug("[%s]: Last state " % self.fileName
+ "timed out.")
asyncSenderProcess = AsynchronousSender(
self.connection, self.globalData)
# set thread to daemon
# => threads terminates when main thread terminates
asyncSenderProcess.daemon = True
asyncSenderProcess.sendSensorsState = True
asyncSenderProcess.start()
# update time on which the full state update was sent
lastFullStateSent = time.time()
time.sleep(0.5)
def forceSendAlert(self):
# Check if we have exceeded the threshold of failed calendar
# retrieval attempts and create a sensor alert if we have.
sensorAlert = None
if (not self.inFailedState
and self.failedCounter > self.maxFailedAttempts):
logging.warning("[%s] Triggering sensor alert for "
% self.fileName
+ "'%d' failed calendar fetching attempts."
% self.failedCounter)
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = self.id
sensorAlert.state = 1
sensorAlert.hasOptionalData = True
msg = "Failed more than %d times for '%s' " \
% (self.maxFailedAttempts, self.name) \
+ "to retrieve calendar data."
sensorAlert.optionalData = {"message": msg,
"calendar": self.name,
"type": "timeout"}
sensorAlert.changeState = True
sensorAlert.hasLatestData = False
sensorAlert.dataType = SensorDataType.NONE
self.state = self.triggerState
self.inFailedState = True
# If we are in a failed retrieval state and we could retrieve
# calendar data again trigger a sensor alert for "normal".
elif (self.inFailedState
and self.failedCounter <= self.maxFailedAttempts):
logging.warning("[%s] Fetching calendar succeeded after "
% self.fileName
+ "multiple failed attempts. Triggering sensor alert.")
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = self.id
sensorAlert.state = 0
sensorAlert.hasOptionalData = True
msg = "Calendar data for '%s' retrievable again." \
% self.name
sensorAlert.optionalData = {"message": msg,
"calendar": self.name,
"type": "timeout"}
sensorAlert.changeState = True
sensorAlert.hasLatestData = False
sensorAlert.dataType = SensorDataType.NONE
self.state = 1 - self.triggerState
self.inFailedState = False
# If we have sensor alerts of reminder waiting
# return the oldest of them.
elif not self.reminderAlertQueue.empty():
try:
sensorAlert = self.reminderAlertQueue.get(True, 2)
except:
pass
return sensorAlert
def _processEventAlarms(self, event, eventDatetime):
# Create current datetime object.
currentUTCTime = time.time()
currentDatetime = datetime.datetime.utcfromtimestamp(currentUTCTime)
currentDatetime = currentDatetime.replace(tzinfo=pytz.UTC)
for alarm in event.walk("VALARM"):
if alarm.has_key("TRIGGER"):
# Get time delta when reminder is triggered.
trigger = alarm.get("TRIGGER")
# Get time when reminder is triggered.
# When trigger time is a delta, then calculate the actual time.
if type(trigger.dt) == datetime.timedelta:
triggerDatetime = eventDatetime + trigger.dt
# When trigger time is an actual time, use this.
elif type(trigger.dt) == datetime.datetime:
triggerDatetime = trigger.dt
# Use the same timezone as the event when
# no is given.
if triggerDatetime.tzinfo is None:
triggerDatetime = triggerDatetime.replace(
tzinfo=eventDatetime.tzinfo)
# When trigger time is only a date, start at midnight,
# however, use the same timezone as the event.
elif type(trigger.dt) == datetime.date:
triggerUTCTime = calendar.timegm(trigger.dt.timetuple())
triggerDatetime = datetime.datetime.utcfromtimestamp(
triggerUTCTime)
# Since we just overwrite the timezone here, we do not
# care about conversion from UTC since the new datetime
# object starts at midnight in the given timezone.
triggerDatetime = triggerDatetime.replace(
tzinfo=eventDatetime.tzinfo)
else:
logging.error("[%s] Error: Do not know how to handle "
% self.fileName
+ "trigger type '%s'."
% trigger.dt.__class__)
continue
# Uid of event is needed.
uid = event.get("UID")
# Get time when event starts.
dtstart = event.get("DTSTART")
# Check if we already triggered an alarm for the event
# with this uid and the given alarm trigger time.
if (uid, triggerDatetime) in self.alreadyTriggered:
break
# Check if the alarm trigger time lies in the past but not
# more than 1 day.
if((currentDatetime - self.timedelta1day)
<= triggerDatetime
<= currentDatetime):
title = event.get("SUMMARY")
# Get description if event has one.
evDescription = ""
if event.has_key("DESCRIPTION"):
evDescription = event.get("DESCRIPTION")
# Get location if event has one.
location = ""
if event.has_key("LOCATION"):
location = event.get("LOCATION")
# Create the utc unix timestamp for the start of the event.
unixStart = datetime.datetime.utcfromtimestamp(0)
unixStart = unixStart.replace(tzinfo=pytz.UTC)
utcDtstart = int(
(eventDatetime - unixStart).total_seconds())
# Create the utc unix timestamp for the reminder trigger.
utcTrigger = int(
(triggerDatetime - unixStart).total_seconds())
eventDateStr = time.strftime("%D %H:%M:%S",
time.localtime(utcDtstart))
msg = "Reminder for event '%s' at %s" \
% (title, eventDateStr)
# Create sensor alert.
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = self.id
sensorAlert.state = 1
sensorAlert.hasOptionalData = True
sensorAlert.optionalData = {"message": msg,
"calendar": self.name,
"type": "reminder",
"title": title,
"description": evDescription,
"location": location,
"trigger": utcTrigger,
"start": utcDtstart}
sensorAlert.changeState = False
sensorAlert.hasLatestData = False
sensorAlert.dataType = SensorDataType.NONE
self.reminderAlertQueue.put(sensorAlert)
# Store the event uid and the alarm trigger time
# as already triggered.
self.alreadyTriggered.add( (uid, triggerDatetime) )
def forceSendAlert(self):
# Check if we have exceeded the threshold of failed calendar
# retrieval attempts and create a sensor alert if we have.
sensorAlert = None
if (not self.inFailedState
and self.failedCounter > self.maxFailedAttempts):
logging.warning(
"[%s] Triggering sensor alert for " % self.fileName +
"'%d' failed calendar fetching attempts." % self.failedCounter)
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = self.id
sensorAlert.state = 1
sensorAlert.hasOptionalData = True
msg = "Failed more than %d times for '%s' " \
% (self.maxFailedAttempts, self.name) \
+ "to retrieve calendar data."
sensorAlert.optionalData = {
"message": msg,
"calendar": self.name,
"type": "timeout"
}
sensorAlert.changeState = True
sensorAlert.hasLatestData = False
sensorAlert.dataType = SensorDataType.NONE
self.state = self.triggerState
self.inFailedState = True
# If we are in a failed retrieval state and we could retrieve
# calendar data again trigger a sensor alert for "normal".
elif (self.inFailedState
and self.failedCounter <= self.maxFailedAttempts):
logging.warning(
"[%s] Fetching calendar succeeded after " % self.fileName +
"multiple failed attempts. Triggering sensor alert.")
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = self.id
sensorAlert.state = 0
sensorAlert.hasOptionalData = True
msg = "Calendar data for '%s' retrievable again." \
% self.name
sensorAlert.optionalData = {
"message": msg,
"calendar": self.name,
"type": "timeout"
}
sensorAlert.changeState = True
sensorAlert.hasLatestData = False
sensorAlert.dataType = SensorDataType.NONE
self.state = 1 - self.triggerState
self.inFailedState = False
# If we have sensor alerts of reminder waiting
# return the oldest of them.
elif not self.reminderAlertQueue.empty():
try:
sensorAlert = self.reminderAlertQueue.get(True, 2)
except:
pass
return sensorAlert
def _processEventAlarms(self, event, eventDatetime):
# Create current datetime object.
currentUTCTime = time.time()
currentDatetime = datetime.datetime.utcfromtimestamp(currentUTCTime)
currentDatetime = currentDatetime.replace(tzinfo=pytz.UTC)
for alarm in event.walk("VALARM"):
if alarm.has_key("TRIGGER"):
# Get time delta when reminder is triggered.
trigger = alarm.get("TRIGGER")
# Get time when reminder is triggered.
# When trigger time is a delta, then calculate the actual time.
if type(trigger.dt) == datetime.timedelta:
triggerDatetime = eventDatetime + trigger.dt
# When trigger time is an actual time, use this.
elif type(trigger.dt) == datetime.datetime:
triggerDatetime = trigger.dt
# Thunderbird uses the same timezone as the event when
# no is given.
if triggerDatetime.tzinfo is None:
triggerDatetime = triggerDatetime.replace(
tzinfo=eventDatetime.tzinfo)
# When trigger time is only a date, start at midnight.
elif type(trigger.dt) == datetime.date:
triggerUTCTime = calendar.timegm(trigger.dt.timetuple())
triggerDatetime = datetime.datetime.utcfromtimestamp(
triggerUTCTime)
triggerDatetime = triggerDatetime.replace(tzinfo=pytz.UTC)
else:
logging.error("[%s] Error: Do not know how to handle " %
self.fileName +
"trigger type '%s'." % trigger.dt.__class__)
continue
# Uid of event is needed.
uid = event.get("UID")
# Get time when event starts.
dtstart = event.get("DTSTART")
# Check if we already triggered an alarm for the event
# with this uid and the given alarm trigger time.
if (uid, triggerDatetime) in self.alreadyTriggered:
break
# Check if the alarm trigger time lies in the past but not
# more than 1 day.
if ((currentDatetime - self.timedelta1day) <= triggerDatetime
<= currentDatetime):
title = event.get("SUMMARY")
# Get description if event has one.
evDescription = ""
if event.has_key("DESCRIPTION"):
evDescription = event.get("DESCRIPTION")
# Get location if event has one.
location = ""
if event.has_key("LOCATION"):
location = event.get("LOCATION")
# Create the utc unix timestamp for the start of the event.
unixStart = datetime.datetime.utcfromtimestamp(0)
unixStart = unixStart.replace(tzinfo=pytz.UTC)
utcDtstart = int(
(eventDatetime - unixStart).total_seconds())
# Create the utc unix timestamp for the reminder trigger.
utcTrigger = int(
(triggerDatetime - unixStart).total_seconds())
eventDateStr = time.strftime("%D %H:%M:%S",
time.localtime(utcDtstart))
msg = "Reminder for event '%s' at %s" \
% (title, eventDateStr)
# Create sensor alert.
sensorAlert = SensorAlert()
sensorAlert.clientSensorId = self.id
sensorAlert.state = 1
sensorAlert.hasOptionalData = True
sensorAlert.optionalData = {
"message": msg,
"calendar": self.name,
"type": "reminder",
"title": title,
"description": evDescription,
"location": location,
"trigger": utcTrigger,
"start": utcDtstart
}
sensorAlert.changeState = False
sensorAlert.hasLatestData = False
sensorAlert.dataType = SensorDataType.NONE
self.reminderAlertQueue.put(sensorAlert)
# Store the event uid and the alarm trigger time
# as already triggered.
self.alreadyTriggered.add((uid, triggerDatetime))