def parseRuleRecursively(currentRoot, currentRule):
if currentRoot.tag == "not":
# get possible elemts
orItem = currentRoot.find("or")
andItem = currentRoot.find("and")
notItem = currentRoot.find("not")
sensorItem = currentRoot.find("sensor")
weekdayItem = currentRoot.find("weekday")
monthdayItem = currentRoot.find("monthday")
hourItem = currentRoot.find("hour")
minuteItem = currentRoot.find("minute")
secondItem = currentRoot.find("second")
# check that only one tag is given in not tag
# (because only one is allowed)
counter = 0
if not orItem is None:
counter += 1
if not andItem is None:
counter += 1
if not notItem is None:
counter += 1
if not sensorItem is None:
counter += 1
if not weekdayItem is None:
counter += 1
if not monthdayItem is None:
counter += 1
if not hourItem is None:
counter += 1
if not minuteItem is None:
counter += 1
if not secondItem is None:
counter += 1
if counter != 1:
raise ValueError("Only one tag is valid inside a 'not' tag.")
# start parsing the rule
if not orItem is None:
# create a new "or" rule
ruleNew = RuleBoolean()
ruleNew.type = "or"
# create a wrapper element around the rule
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "boolean"
ruleElement.element = ruleNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse rule starting from the new element
parseRuleRecursively(orItem, ruleNew)
elif not andItem is None:
# create a new "and" rule
ruleNew = RuleBoolean()
ruleNew.type = "and"
# create a wrapper element around the rule
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "boolean"
ruleElement.element = ruleNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse rule starting from the new element
parseRuleRecursively(andItem, ruleNew)
elif not notItem is None:
# create a new "not" rule
ruleNew = RuleBoolean()
ruleNew.type = "not"
# create a wrapper element around the rule
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "boolean"
ruleElement.element = ruleNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse rule starting from the new element
parseRuleRecursively(notItem, ruleNew)
elif not sensorItem is None:
ruleSensorNew = RuleSensor()
ruleSensorNew.username = str(sensorItem.attrib["username"])
ruleSensorNew.remoteSensorId = int(sensorItem.attrib[
"remoteSensorId"])
# create a wrapper element around the sensor element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "sensor"
ruleElement.element = ruleSensorNew
ruleElement.timeTriggeredFor = float(
sensorItem.attrib["timeTriggeredFor"])
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
elif not weekdayItem is None:
ruleWeekdayNew = RuleWeekday()
# get time attribute and check if valid
ruleWeekdayNew.time = str(weekdayItem.attrib["time"])
if (ruleWeekdayNew.time != "local" and
ruleWeekdayNew.time != "utc"):
raise ValueError("No valid value for 'time' attribute "
+ "in weekday tag.")
# get weekday attribute and check if valid
ruleWeekdayNew.weekday = int(weekdayItem.attrib[
"weekday"])
if (ruleWeekdayNew.weekday < 0 or
ruleWeekdayNew.weekday > 6):
raise ValueError("No valid value for 'weekday' "
+ "attribute in weekday tag.")
# create a wrapper element around the weekday element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "weekday"
ruleElement.element = ruleWeekdayNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
elif not monthdayItem is None:
ruleMonthdayNew = RuleMonthday()
# get time attribute and check if valid
ruleMonthdayNew.time = str(monthdayItem.attrib["time"])
if (ruleMonthdayNew.time != "local" and
ruleMonthdayNew.time != "utc"):
raise ValueError("No valid value for 'time' attribute "
+ "in monthday tag.")
# get monthday attribute and check if valid
ruleMonthdayNew.monthday = int(monthdayItem.attrib[
"monthday"])
if (ruleMonthdayNew.monthday < 1 or
ruleMonthdayNew.monthday > 31):
raise ValueError("No valid value for 'monthday' "
+ "attribute in monthday tag.")
# create a wrapper element around the monthday element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "monthday"
ruleElement.element = ruleMonthdayNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
elif not hourItem is None:
ruleHourNew = RuleHour()
# get time attribute and check if valid
ruleHourNew.time = str(hourItem.attrib["time"])
if (ruleHourNew.time != "local" and
ruleHourNew.time != "utc"):
raise ValueError("No valid value for 'time' attribute "
+ "in hour tag.")
# get start attribute and check if valid
ruleHourNew.start = int(hourItem.attrib[
"start"])
if (ruleHourNew.start < 0 or
ruleHourNew.start > 23):
raise ValueError("No valid value for 'start' "
+ "attribute in hour tag.")
# get end attribute and check if valid
ruleHourNew.end = int(hourItem.attrib[
"end"])
if (ruleHourNew.start < 0 or
ruleHourNew.start > 23):
raise ValueError("No valid value for 'end' "
+ "attribute in hour tag.")
if ruleHourNew.start > ruleHourNew.end:
raise ValueError("'start' attribute not allowed to be "
+ "greater than 'end' attribute in hour tag.")
# create a wrapper element around the hour element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "hour"
ruleElement.element = ruleHourNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
elif not minuteItem is None:
ruleMinuteNew = RuleMinute()
# get start attribute and check if valid
ruleMinuteNew.start = int(minuteItem.attrib[
"start"])
if (ruleMinuteNew.start < 0 or
ruleMinuteNew.start > 59):
raise ValueError("No valid value for 'start' "
+ "attribute in minute tag.")
# get end attribute and check if valid
ruleMinuteNew.end = int(minuteItem.attrib[
"end"])
if (ruleMinuteNew.start < 0 or
ruleMinuteNew.start > 59):
raise ValueError("No valid value for 'end' "
+ "attribute in minute tag.")
if ruleMinuteNew.start > ruleMinuteNew.end:
raise ValueError("'start' attribute not allowed to be "
+ "greater than 'end' attribute in minute tag.")
# create a wrapper element around the minute element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "minute"
ruleElement.element = ruleMinuteNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
elif not secondItem is None:
ruleSecondNew = RuleSecond()
# get start attribute and check if valid
ruleSecondNew.start = int(secondItem.attrib[
"start"])
if (ruleSecondNew.start < 0 or
ruleSecondNew.start > 59):
raise ValueError("No valid value for 'start' "
+ "attribute in second tag.")
# get end attribute and check if valid
ruleSecondNew.end = int(secondItem.attrib[
"end"])
if (ruleSecondNew.start < 0 or
ruleSecondNew.start > 59):
raise ValueError("No valid value for 'end' "
+ "attribute in second tag.")
if ruleSecondNew.start > ruleSecondNew.end:
raise ValueError("'start' attribute not allowed to be "
+ "greater than 'end' attribute in second tag.")
# create a wrapper element around the second element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "second"
ruleElement.element = ruleSecondNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
else:
raise ValueError("No valid tag was found.")
# NOT is always an invalid rule (ignores all elements inside the
# NOT element)
return False
elif (currentRoot.tag == "and"
or currentRoot.tag == "or"):
# set the current rule element to invald
ruleValid = False
# parse all "sensor" tags
for item in currentRoot.iterfind("sensor"):
ruleSensorNew = RuleSensor()
ruleSensorNew.username = str(item.attrib["username"])
ruleSensorNew.remoteSensorId = int(item.attrib["remoteSensorId"])
# create a wrapper element around the sensor element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "sensor"
ruleElement.element = ruleSensorNew
ruleElement.timeTriggeredFor = float(
item.attrib["timeTriggeredFor"])
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# a sensor element always sets the rule to a valid rule
ruleValid = True
# parse all "weekday" tags
for item in currentRoot.iterfind("weekday"):
ruleWeekdayNew = RuleWeekday()
# get time attribute and check if valid
ruleWeekdayNew.time = str(item.attrib["time"])
if (ruleWeekdayNew.time != "local" and
ruleWeekdayNew.time != "utc"):
raise ValueError("No valid value for 'time' attribute "
+ "in weekday tag.")
# get weekday attribute and check if valid
ruleWeekdayNew.weekday = int(item.attrib[
"weekday"])
if (ruleWeekdayNew.weekday < 0 or
ruleWeekdayNew.weekday > 6):
raise ValueError("No valid value for 'weekday' "
+ "attribute in weekday tag.")
# create a wrapper element around the weekday element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "weekday"
ruleElement.element = ruleWeekdayNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse all "monthday" tags
for item in currentRoot.iterfind("monthday"):
ruleMonthdayNew = RuleMonthday()
# get time attribute and check if valid
ruleMonthdayNew.time = str(item.attrib["time"])
if (ruleMonthdayNew.time != "local" and
ruleMonthdayNew.time != "utc"):
raise ValueError("No valid value for 'time' attribute "
+ "in monthday tag.")
# get monthday attribute and check if valid
ruleMonthdayNew.monthday = int(item.attrib[
"monthday"])
if (ruleMonthdayNew.monthday < 1 or
ruleMonthdayNew.monthday > 31):
raise ValueError("No valid value for 'monthday' "
+ "attribute in monthday tag.")
# create a wrapper element around the monthday element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "monthday"
ruleElement.element = ruleMonthdayNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse all "hour" tags
for item in currentRoot.iterfind("hour"):
ruleHourNew = RuleHour()
# get time attribute and check if valid
ruleHourNew.time = str(item.attrib["time"])
if (ruleHourNew.time != "local" and
ruleHourNew.time != "utc"):
raise ValueError("No valid value for 'time' attribute "
+ "in hour tag.")
# get start attribute and check if valid
ruleHourNew.start = int(item.attrib[
"start"])
if (ruleHourNew.start < 0 or
ruleHourNew.start > 23):
raise ValueError("No valid value for 'start' "
+ "attribute in hour tag.")
# get end attribute and check if valid
ruleHourNew.end = int(item.attrib[
"end"])
if (ruleHourNew.start < 0 or
ruleHourNew.start > 23):
raise ValueError("No valid value for 'end' "
+ "attribute in hour tag.")
if ruleHourNew.start > ruleHourNew.end:
raise ValueError("'start' attribute not allowed to be"
+ "greater than 'end' attribute in hour tag.")
# create a wrapper element around the hour element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "hour"
ruleElement.element = ruleHourNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse all "minute" tags
for item in currentRoot.iterfind("minute"):
ruleMinuteNew = RuleMinute()
# get start attribute and check if valid
ruleMinuteNew.start = int(item.attrib[
"start"])
if (ruleMinuteNew.start < 0 or
ruleMinuteNew.start > 59):
raise ValueError("No valid value for 'start' "
+ "attribute in minute tag.")
# get end attribute and check if valid
ruleMinuteNew.end = int(item.attrib[
"end"])
if (ruleMinuteNew.start < 0 or
ruleMinuteNew.start > 59):
raise ValueError("No valid value for 'end' "
+ "attribute in minute tag.")
if ruleMinuteNew.start > ruleMinuteNew.end:
raise ValueError("'start' attribute not allowed to be "
+ "greater than 'end' attribute in minute tag.")
# create a wrapper element around the minute element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "minute"
ruleElement.element = ruleMinuteNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse all "second" tags
for item in currentRoot.iterfind("second"):
ruleSecondNew = RuleSecond()
# get start attribute and check if valid
ruleSecondNew.start = int(item.attrib[
"start"])
if (ruleSecondNew.start < 0 or
ruleSecondNew.start > 59):
raise ValueError("No valid value for 'start' "
+ "attribute in second tag.")
# get end attribute and check if valid
ruleSecondNew.end = int(item.attrib[
"end"])
if (ruleSecondNew.start < 0 or
ruleSecondNew.start > 59):
raise ValueError("No valid value for 'end' "
+ "attribute in second tag.")
if ruleSecondNew.start > ruleSecondNew.end:
raise ValueError("'start' attribute not allowed to be "
+ "greater than 'end' attribute in second tag.")
# create a wrapper element around the second element
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "second"
ruleElement.element = ruleSecondNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse all "and" tags
for item in currentRoot.iterfind("and"):
# create a new "and" rule
ruleNew = RuleBoolean()
ruleNew.type = "and"
# create a wrapper element around the rule
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "boolean"
ruleElement.element = ruleNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse rule starting from the new element
tempValid = parseRuleRecursively(item, ruleNew)
# only set the rule to the result of the recursively parsing
# if it is not already valid
if not ruleValid:
ruleValid = tempValid
# parse all "or" tags
for item in currentRoot.iterfind("or"):
# create a new "or" rule
ruleNew = RuleBoolean()
ruleNew.type = "or"
# create a wrapper element around the rule
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "boolean"
ruleElement.element = ruleNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse rule starting from the new element
tempValid = parseRuleRecursively(item, ruleNew)
# only set the rule to the result of the recursively parsing
# if it is not already valid
if not ruleValid:
ruleValid = tempValid
# parse all "not" tags
for item in currentRoot.iterfind("not"):
# create a new "not" rule
ruleNew = RuleBoolean()
ruleNew.type = "not"
# create a wrapper element around the rule
# to have meta information (i.e. triggered,
# time when triggered, etc.)
ruleElement = RuleElement()
ruleElement.type = "boolean"
ruleElement.element = ruleNew
# add wrapper element to the current rule
currentRule.elements.append(ruleElement)
# parse rule starting from the new element
parseRuleRecursively(item, ruleNew)
# return if the current rule is valid
return ruleValid
else:
raise ValueError("No valid tag found in rule.")
if ruleHourNew.start > ruleHourNew.end:
raise ValueError("'start' attribute not allowed "
+ "to be greater than 'end' attribute in "
+ "hour tag.")
# fill wrapper element
ruleElement.type = "hour"
ruleElement.element = ruleHourNew
# flag current rule as invalid
rulesValid.append(False)
elif not minuteRule is None:
ruleMinuteNew = RuleMinute()
# get start attribute and check if valid
ruleMinuteNew.start = int(minuteRule.attrib[
"start"])
if (ruleMinuteNew.start < 0 or
ruleMinuteNew.start > 59):
raise ValueError("No valid value for 'start' "
+ "attribute in minute tag.")
# get end attribute and check if valid
ruleMinuteNew.end = int(minuteRule.attrib[
"end"])
if (ruleMinuteNew.start < 0 or
ruleMinuteNew.start > 59):
raise ValueError("No valid value for 'end' "
