def readProperty(self, request, address, invoke_key, device):
# Read Property
# TODO: add support for PropertyArrayIndex handling;
for obj in device.objectList.value[2:]:
if (
int(request.objectIdentifier[1]) == obj[1]
and request.objectIdentifier[0] == obj[0]
):
objName = self.objectIdentifier[obj].objectName
for prop in self.objectIdentifier[obj].properties:
if request.propertyIdentifier == prop.identifier:
propName = prop.identifier
propValue = prop.ReadProperty(self.objectIdentifier[obj])
propType = prop.datatype()
self._response_service = "ComplexAckPDU"
self._response = ReadPropertyACK()
self._response.pduDestination = address
self._response.apduInvokeID = invoke_key
self._response.objectIdentifier = obj[1]
self._response.objectName = objName
self._response.propertyIdentifier = propName
# get the property type
for p in dir(sys.modules[propType.__module__]):
_obj = getattr(sys.modules[propType.__module__], p)
try:
if type(propType) == _obj:
break
except TypeError:
pass
value = ast.literal_eval(propValue)
self._response.propertyValue = Any(_obj(value))
# self._response.propertyValue.cast_in(objPropVal)
# self._response.debug_contents()
break
else:
logger.info(
"Bacnet ReadProperty: object has no property %s",
request.propertyIdentifier,
)
self._response = ErrorPDU()
self._response.pduDestination = address
self._response.apduInvokeID = invoke_key
self._response.apduService = 0x0C
def indication(self, apdu, address, device):
"""logging the received PDU type and Service request"""
request = None
apdu_type = apdu_types.get(apdu.apduType)
invoke_key = apdu.apduInvokeID
logger.info('Bacnet PDU received from %s:%d. (%s)', address[0],
address[1], apdu_type.__name__)
if apdu_type.pduType == 0x0:
# Confirmed request handling
apdu_service = confirmed_request_types.get(apdu.apduService)
logger.info('Bacnet indication from %s:%d. (%s)', address[0],
address[1], apdu_service.__name__)
try:
request = apdu_service()
request.decode(apdu)
except (AttributeError, RuntimeError,
InvalidParameterDatatype) as e:
logger.warning(
'Bacnet indication: Invalid service. Error: %s' % e)
return
except bacpypes.errors.DecodingError:
pass
for key, value in list(
ConfirmedServiceChoice.enumerations.items()):
if apdu_service.serviceChoice == value:
try:
getattr(self, key)(request, address, invoke_key,
device)
break
except AttributeError:
logger.error('Not implemented Bacnet command')
self._response = None
return
else:
logger.info(
'Bacnet indication: Invalid confirmed service choice (%s)',
apdu_service.__name__)
self._response = None
return
# Unconfirmed request handling
elif apdu_type.pduType == 0x1:
apdu_service = unconfirmed_request_types.get(apdu.apduService)
logger.info('Bacnet indication from %s:%d. (%s)', address[0],
address[1], apdu_service.__name__)
try:
request = apdu_service()
request.decode(apdu)
except (AttributeError, RuntimeError):
logger.exception('Bacnet indication: Invalid service.')
self._response = None
return
except bacpypes.errors.DecodingError:
pass
for key, value in list(
UnconfirmedServiceChoice.enumerations.items()):
if apdu_service.serviceChoice == value:
try:
getattr(self, key)(request, address, invoke_key,
device)
break
except AttributeError:
logger.error('Not implemented Bacnet command')
self._response = None
return
else:
# Unrecognized services
logger.info(
'Bacnet indication: Invalid unconfirmed service choice (%s)',
apdu_service)
self._response_service = 'ErrorPDU'
self._response = ErrorPDU()
self._response.pduDestination = address
return
# ignore the following
elif apdu_type.pduType == 0x2:
# simple ack pdu
self._response = None
return
elif apdu_type.pduType == 0x3:
# complex ack pdu
self._response = None
return
elif apdu_type.pduType == 0x4:
# segment ack
self._response = None
return
elif apdu_type.pduType == 0x5:
# error pdu
self._response = None
return
elif apdu_type.pduType == 0x6:
# reject pdu
self._response = None
return
elif apdu_type.pduType == 0x7:
# abort pdu
self._response = None
return
elif 0x8 <= apdu_type.pduType <= 0xf:
# reserved
self._response = None
return
else:
# non-BACnet PDU types
logger.info('Bacnet Unrecognized service')
self._response = None
return
def readProperty(self, request, address, invoke_key, device):
# Read Property
# TODO: add support for PropertyArrayIndex handling;
logger.info('requestPropertyId: ' + str(request.propertyIdentifier))
for obj in device.objectList.value[2:]:
if int(request.objectIdentifier[1]) == obj[1] and \
request.objectIdentifier[0] == obj[0]:
objName = self.objectIdentifier[obj].objectName
for prop in self.objectIdentifier[obj].properties:
#logger.info('propIdentifier: ' + str(prop.identifier))
if request.propertyIdentifier == prop.identifier:
propName = prop.identifier
propValue = prop.ReadProperty(
self.objectIdentifier[obj])
propType = prop.datatype()
self._response_service = 'ComplexAckPDU'
self._response = ReadPropertyACK()
self._response.pduDestination = address
self._response.apduInvokeID = invoke_key
self._response.objectIdentifier = obj[1]
self._response.objectName = objName
self._response.propertyIdentifier = propName
"""
# get the property type
for p in dir(sys.modules[propType.__module__]):
_obj = getattr(sys.modules[propType.__module__], p)
#try:
# if type(propType) == _obj:
if (isinstance(_obj,dict)):
if _obj.get(ObjectIdentifier) is not None:
_obj_type = _obj.get(ObjectIdentifier)
break
else:
try:
if type(propType) == _obj:
_obj_type = _obj
break
except TypeError:
pass
"""
logger.info('propValue is : ' + str(propValue))
if propValue is not None:
value = ast.literal_eval(propValue)
self._response.propertyValue = Any(
type(propType)(value))
else:
logger.info(
'Bacnet ReadProperty: object has no property %s',
request.propertyIdentifier)
self._response = ErrorPDU()
self._response.pduDestination = address
self._response.apduInvokeID = invoke_key
self._response.apduService = 0x0c
#self._response.propertyValue = Any(_obj(value))
# self._response.propertyValue.cast_in(objPropVal)
# self._response.debug_contents()
break
else:
logger.info(
'Bacnet ReadProperty: object has no property %s',
request.propertyIdentifier)
self._response = ErrorPDU()
self._response.pduDestination = address
self._response.apduInvokeID = invoke_key
self._response.apduService = 0x0c