def read_property_multiple_g3(device, properties, timeout=3.0, no_fallback=0):
# Some device's do not properly answer multiple properties to multiple
# objects. This method first tries RPM, then RPM(singular) and finially RP
# to retrieve a list of properties.
# A readPropertyFallback attribute remembers which mode was successful and
# that is used in subsequent reads.
if (not (_device_table.has_key(device)) or \
(_device_table[device].readPropertyFallback < BACNET_RPM_SINGLE_OK)):
results = _read_property_multiple_g3(device,properties, timeout)
if (results != None):
if (len(results) == len(properties)):
_device_table[device].readPropertyFallback=1 # No fallback needed.
return results
elif no_fallback != 0:
return results
else:
# Broken device?
_device_table[device].readPropertyFallback=0
results = []
properties = copy.copy(properties)
while properties:
property = properties.pop(0)
try:
rp_result = read_property_g3(device, property)
if (rp_result is not None): #remember this worked
if (_device_table[device].readPropertyFallback == BACNET_RPM_UNKNOWN):
msglog.log('broadway', msglog.types.WARN,
'read_property fallback for device = ' +
str(device))
_device_table[device].readPropertyFallback = BACNET_RPM_NOT_SUPPORTED
#convert result to RPM style
result = sequence.ReadAccessResult()
result.object_identifier = rp_result.object_identifier
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=rp_result.property_identifier,
property_array_index=rp_result.property_array_index,
property_value=rp_result.property_value)
]
else:
# Place holder...
result = ReadAccessResult()
except BACnetError, e:
# Simulate RPMs behaviour when a subset of reads fail.
error = sequence.Error(decode=tag.decode(e.npdu.data).value)
result = sequence.ReadAccessResult()
result.object_identifier = data.BACnetObjectIdentifier(property[0],
property[1])
if len(property) > 3 and property[3] != -1:
index = property[3]
else:
index = -1
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=property[2],
property_array_index=index,
property_access_error=error)
]
results.append(result)
def read_property_multiple_g3(device, properties, timeout=3.0, no_fallback=0):
# Some device's do not properly answer multiple properties to multiple
# objects. This method first tries RPM, then RPM(singular) and finially RP
# to retrieve a list of properties.
# A readPropertyFallback attribute remembers which mode was successful and
# that is used in subsequent reads.
if not (_device_table.has_key(device)) or (_device_table[device].readPropertyFallback < BACNET_RPM_SINGLE_OK):
results = _read_property_multiple_g3(device, properties, timeout)
if results != None:
if len(results) == len(properties):
_device_table[device].readPropertyFallback = 1 # No fallback needed.
return results
elif no_fallback != 0:
return results
else:
# Broken device?
_device_table[device].readPropertyFallback = 0
results = []
properties = copy.copy(properties)
while properties:
property = properties.pop(0)
try:
rp_result = read_property_g3(device, property)
if rp_result is not None: # remember this worked
if _device_table[device].readPropertyFallback == BACNET_RPM_UNKNOWN:
msglog.log("broadway", msglog.types.WARN, "read_property fallback for device = " + str(device))
_device_table[device].readPropertyFallback = BACNET_RPM_NOT_SUPPORTED
# convert result to RPM style
result = sequence.ReadAccessResult()
result.object_identifier = rp_result.object_identifier
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=rp_result.property_identifier,
property_array_index=rp_result.property_array_index,
property_value=rp_result.property_value,
)
]
else:
# Place holder...
result = ReadAccessResult()
except BACnetError, e:
# Simulate RPMs behaviour when a subset of reads fail.
error = sequence.Error(decode=tag.decode(e.npdu.data).value)
result = sequence.ReadAccessResult()
result.object_identifier = data.BACnetObjectIdentifier(property[0], property[1])
if len(property) > 3 and property[3] != -1:
index = property[3]
else:
index = -1
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=property[2], property_array_index=index, property_access_error=error
)
]
results.append(result)
def cov_notification_msg(server_device, msg, confirmed):
notif = tag.decode(msg.data)
if DEBUG:
print "COV NOTIFICATION: ", notif
# convert request into a list of cov specifications
ss = sequence.CovNotification(decode=notif.value)
if DEBUG:
print "COV NOTIFICATION sequence: ", ss
pid = ss.pid
if DEBUG:
print "COV NOTIFICATION pid: ", pid
device_id = ss.device_identifier.instance_number
if DEBUG:
print "COV NOTIFICATION device_id: ", device_id
time_remaining = ss.time_remaining
if DEBUG:
print "COV NOTIFICATION time_remaining: ", time_remaining
if _device_table.has_key(device_id):
device = _device_table[device_id]
else:
# Unknown device.
return error_pdu(msg, 5, 25)
try:
if device.node is None:
dnode = as_node("/services/network/BACnet/internetwork/Devices/" + str(device_id))
device.node = dnode
o = device.node.as_node(
(str(ss.object_identifier.object_type)) + "/" + (str(ss.object_identifier.instance_number))
)
except:
return error_pdu(msg, 5, 25)
if DEBUG:
print "COV NOTIFICATION object: ", o
for pv in ss.list_of_property_values:
try:
p = o.get_child(str(pv.property_identifier), auto_discover=0)
except ENoSuchName:
if DEBUG:
print "COV NOTIFICATION ENOSUCHNAME"
# This can happen if the property we are refering to is
# not instantiated (because it isn't polled/monitored/not-of-
# interest. Example: We are only monitoring present-value
# property, but not status-flags. Ignore for now.
else:
p.cov_notif_processing(pv.value, pid, time_remaining)
return simple_ack_pdu(msg)
def cov_notification_msg(server_device, msg, confirmed):
notif = tag.decode(msg.data)
if DEBUG: print 'COV NOTIFICATION: ', notif
#convert request into a list of cov specifications
ss = sequence.CovNotification(decode=notif.value)
if DEBUG: print 'COV NOTIFICATION sequence: ', ss
pid = ss.pid
if DEBUG: print 'COV NOTIFICATION pid: ', pid
device_id = ss.device_identifier.instance_number
if DEBUG: print 'COV NOTIFICATION device_id: ', device_id
time_remaining = ss.time_remaining
if DEBUG: print 'COV NOTIFICATION time_remaining: ', time_remaining
if _device_table.has_key(device_id):
device = _device_table[device_id]
else:
# Unknown device.
return error_pdu(msg, 5, 25)
try:
if device.node is None:
dnode = as_node('/services/network/BACnet/internetwork/Devices/' + str(device_id))
device.node = dnode
o = device.node.as_node((str(ss.object_identifier.object_type)) \
+ '/'+ (str(ss.object_identifier.instance_number)))
except:
return error_pdu(msg, 5, 25)
if DEBUG: print 'COV NOTIFICATION object: ', o
for pv in ss.list_of_property_values:
try:
p = o.get_child(str(pv.property_identifier), auto_discover=0)
except ENoSuchName:
if DEBUG: print 'COV NOTIFICATION ENOSUCHNAME'
# This can happen if the property we are refering to is
# not instantiated (because it isn't polled/monitored/not-of-
# interest. Example: We are only monitoring present-value
# property, but not status-flags. Ignore for now.
else:
p.cov_notif_processing(pv.value, pid, time_remaining)
return simple_ack_pdu(msg)
def read_property_multiple(device, properties):
# this hack is back in now because Trane's onsite bridge (device 11)
# does not properly answer multiple properties
# This method first tries RPM, then RPM(singular) and finially RP to retrieve
# a list of properties
# A readPropertyFallback attribute remembers which mode was successful and
# that is used in subsequent reads
results = []
if not (_device_table.has_key(device)) or (_device_table[device].readPropertyFallback < 2):
results = read_property_multiple_real2(device, properties)
if results != None:
if len(results) == len(properties):
_device_table[device].readPropertyFallback = 1 # No fallback needed.
return results
# we did not get the result we expected, try to fall back to a different
# method this function breaks the read_property_multiple into groups of
# GroupSize
results = []
Groupsize = 1
while properties:
group = properties[0:Groupsize]
ilen = len(group)
result = None
if (_device_table[device].readPropertyFallback == 0) or (_device_table[device].readPropertyFallback == 2):
result = read_property_multiple_real2(device, group)
if result != None: # remember this worked
if _device_table[device].readPropertyFallback == 0:
msglog.log(
"broadway", msglog.types.WARN, "read_property_multiple fallback for device = " + str(device)
)
_device_table[device].readPropertyFallback = 2 # Use single RPM.
if (_device_table[device].readPropertyFallback == 0) or (_device_table[device].readPropertyFallback == 3):
result = read_property(device, group[0])
if result != None: # remember this worked
if _device_table[device].readPropertyFallback == 0:
msglog.log("broadway", msglog.types.WARN, "read_property fallback for device = " + str(device))
_device_table[device].readPropertyFallback = 3
rp_result = result # convert result to RPM style
result = ((None, None),)
for p in rp_result.value:
# Again, if we felt like it, we could extract the property
# ID from tag.number 2. But we won't because we don't use
# it. If we wrote code to match the request to response,
# we would need it.
if p.number == 4:
# Property value list
p_value = p.value[0].value
p_bacnet_value_type = p.value[0].number
result = ((p_value, p_bacnet_value_type),)
elif p.number == 3:
# Property value list
p_value = p.value[0].value
p_bacnet_value_type = p.value[0].number
result = ((p_value, p_bacnet_value_type),)
elif p.number == 5:
# error code
result = ((None, None),)
properties = properties[Groupsize:]
if result is None:
if DEBUG:
print "No results..."
result = (None, None)
for i in range(0, ilen):
results.append(result)
else:
for i in range(0, ilen):
if i < len(result):
results.append(result[i])
else:
raise BACnetException("Too few results...")
return results
def read_property_multiple(device, properties):
# this hack is back in now because Trane's onsite bridge (device 11)
# does not properly answer multiple properties
# This method first tries RPM, then RPM(singular) and finially RP to retrieve
# a list of properties
# A readPropertyFallback attribute remembers which mode was successful and
# that is used in subsequent reads
results=[]
if (not (_device_table.has_key(device)) or \
(_device_table[device].readPropertyFallback < 2)):
results = read_property_multiple_real2(device,properties)
if (results != None):
if (len(results) == len(properties)):
_device_table[device].readPropertyFallback=1 # No fallback needed.
return results
# we did not get the result we expected, try to fall back to a different
# method this function breaks the read_property_multiple into groups of
# GroupSize
results=[]
Groupsize = 1
while properties:
group = properties[0:Groupsize]
ilen = len(group)
result = None
if (_device_table[device].readPropertyFallback == 0) or \
(_device_table[device].readPropertyFallback == 2):
result = read_property_multiple_real2(device, group)
if (result != None): #remember this worked
if (_device_table[device].readPropertyFallback == 0):
msglog.log('broadway', msglog.types.WARN,
'read_property_multiple fallback for device = ' +
str(device))
_device_table[device].readPropertyFallback = 2 # Use single RPM.
if (_device_table[device].readPropertyFallback == 0) or \
(_device_table[device].readPropertyFallback == 3):
result = read_property(device, group[0])
if (result != None): #remember this worked
if (_device_table[device].readPropertyFallback == 0):
msglog.log('broadway', msglog.types.WARN,
'read_property fallback for device = ' +
str(device))
_device_table[device].readPropertyFallback = 3
rp_result = result #convert result to RPM style
result = ((None, None),)
for p in rp_result.value:
# Again, if we felt like it, we could extract the property
# ID from tag.number 2. But we won't because we don't use
# it. If we wrote code to match the request to response,
# we would need it.
if p.number == 4:
# Property value list
p_value = p.value[0].value
p_bacnet_value_type = p.value[0].number
result = ((p_value, p_bacnet_value_type),)
elif p.number == 3:
# Property value list
p_value = p.value[0].value
p_bacnet_value_type = p.value[0].number
result = ((p_value, p_bacnet_value_type),)
elif p.number == 5:
# error code
result = ((None, None),)
properties = properties[Groupsize:]
if result is None:
if DEBUG: print 'No results...'
result = (None,None)
for i in range(0,ilen):
results.append(result)
else:
for i in range(0,ilen):
if i < len(result):
results.append(result[i])
else:
raise BACnetException('Too few results...')
return results