def _get_access_spec(self, obj_data, properties):
count = 0
obj_type, obj_inst = obj_data
prop_ref_list = []
for prop, prop_index in properties:
prop_ref = PropertyReference(propertyIdentifier=prop)
if prop_index is not None:
prop_ref.propertyArrayIndex = prop_index
prop_ref_list.append(prop_ref)
count += 1
return (ReadAccessSpecification(objectIdentifier=(obj_type, obj_inst), listOfPropertyReferences=prop_ref_list),
count)
def build_property_reference_list(obj_type, list_of_properties):
property_reference_list = []
for prop in list_of_properties:
idx = None
if "@idx:" in prop:
prop, idx = prop.split("@idx:")
prop_id = validate_property_id(obj_type, prop)
prop_reference = PropertyReference(propertyIdentifier=prop_id)
if idx:
prop_reference.propertyArrayIndex = int(idx)
property_reference_list.append(prop_reference)
return property_reference_list
def _get_access_spec(self, obj_data, properties):
count = 0
obj_type, obj_inst = obj_data
prop_ref_list = []
for prop, prop_index in properties:
prop_ref = PropertyReference(propertyIdentifier=prop)
if prop_index is not None:
prop_ref.propertyArrayIndex = prop_index
prop_ref_list.append(prop_ref)
count += 1
return (ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_ref_list), count)
def do_read(self, args):
"""read <addr> ( <type> <inst> ( <prop> [ <indx> ] )... )..."""
args = args.split()
if _debug: ReadPropertyMultipleConsoleCmd._debug("do_read %r", args)
try:
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError, "unknown object type"
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError, "invalid property for object type"
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id,
)
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError, "provide at least one property"
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError, "at least one read access specification required"
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list,
)
request.pduDestination = Address(addr)
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - request: %r", request)
# give it to the application
this_application.request(request)
except Exception, e:
ReadPropertyMultipleConsoleCmd._exception("exception: %r", e)
def do_read(self, args):
"""read <addr> ( <type> <inst> ( <prop> [ <indx> ] )... )..."""
args = args.split()
if _debug: ReadPropertyMultipleConsoleCmd._debug("do_read %r", args)
try:
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError(
"invalid property for object type")
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id, )
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError(
"at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list, )
request.pduDestination = Address(addr)
if _debug:
ReadPropertyMultipleConsoleCmd._debug(" - request: %r",
request)
# make an IOCB
iocb = IOCB(request)
if _debug:
ReadPropertyMultipleConsoleCmd._debug(" - iocb: %r", iocb)
# give it to the application
this_application.request_io(iocb)
# wait for it to complete
iocb.wait()
# do something for success
if iocb.ioResponse:
apdu = iocb.ioResponse
# should be an ack
if not isinstance(apdu, ReadPropertyMultipleACK):
if _debug:
ReadPropertyMultipleConsoleCmd._debug(
" - not an ack")
return
# loop through the results
for result in apdu.listOfReadAccessResults:
# here is the object identifier
objectIdentifier = result.objectIdentifier
if _debug:
ReadPropertyMultipleConsoleCmd._debug(
" - objectIdentifier: %r", objectIdentifier)
# now come the property values per object
for element in result.listOfResults:
# get the property and array index
propertyIdentifier = element.propertyIdentifier
if _debug:
ReadPropertyMultipleConsoleCmd._debug(
" - propertyIdentifier: %r",
propertyIdentifier)
propertyArrayIndex = element.propertyArrayIndex
if _debug:
ReadPropertyMultipleConsoleCmd._debug(
" - propertyArrayIndex: %r",
propertyArrayIndex)
# here is the read result
readResult = element.readResult
sys.stdout.write(propertyIdentifier)
if propertyArrayIndex is not None:
sys.stdout.write("[" + str(propertyArrayIndex) +
"]")
# check for an error
if readResult.propertyAccessError is not None:
sys.stdout.write(
" ! " + str(readResult.propertyAccessError) +
'\n')
else:
# here is the value
propertyValue = readResult.propertyValue
# find the datatype
datatype = get_datatype(objectIdentifier[0],
propertyIdentifier)
if _debug:
ReadPropertyMultipleConsoleCmd._debug(
" - datatype: %r", datatype)
if not datatype:
raise TypeError("unknown datatype")
# special case for array parts, others are managed by cast_out
if issubclass(datatype,
Array) and (propertyArrayIndex
is not None):
if propertyArrayIndex == 0:
value = propertyValue.cast_out(Unsigned)
else:
value = propertyValue.cast_out(
datatype.subtype)
else:
value = propertyValue.cast_out(datatype)
if _debug:
ReadPropertyMultipleConsoleCmd._debug(
" - value: %r", value)
sys.stdout.write(" = " + str(value) + '\n')
sys.stdout.flush()
# do something for error/reject/abort
if iocb.ioError:
sys.stdout.write(str(iocb.ioError) + '\n')
except Exception, error:
ReadPropertyMultipleConsoleCmd._exception("exception: %r", error)
def do_rpm(self, args):
"""
rpm <devid> ( <objid> ( <prop> [ <indx> ] )... )...
Send a Read-Property-Multiple request to a device identified by its
device identifier.
"""
args = args.split()
if _debug: DiscoverConsoleCmd._debug("do_rpm %r", args)
try:
i = 0
devid = int(args[i])
if _debug: DiscoverConsoleCmd._debug(" - devid: %r", devid)
i += 1
# map the devid identifier to an address from the database
addr = snapshot.get_value(devid, '-', 'address')
if not addr:
raise ValueError("unknown device")
if _debug: DiscoverConsoleCmd._debug(" - addr: %r", addr)
read_access_spec_list = []
while i < len(args):
obj_id = ObjectIdentifier(args[i]).value
if _debug:
DiscoverConsoleCmd._debug(" - obj_id: %r", obj_id)
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if _debug:
DiscoverConsoleCmd._debug(" - prop_id: %r", prop_id)
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_id[0], prop_id)
if not datatype:
raise ValueError(
"invalid property for object type")
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id, )
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=obj_id,
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError(
"at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list, )
request.pduDestination = Address(addr)
if _debug: DiscoverConsoleCmd._debug(" - request: %r", request)
# make an IOCB
iocb = IOCB(request)
if _debug: DiscoverConsoleCmd._debug(" - iocb: %r", iocb)
# give it to the application
deferred(this_application.request_io, iocb)
# wait for it to complete
iocb.wait()
# do something for success
if iocb.ioResponse:
apdu = iocb.ioResponse
if _debug: DiscoverConsoleCmd._debug(" - apdu: %r", apdu)
# should be an ack
if not isinstance(apdu, ReadPropertyMultipleACK):
if _debug: DiscoverConsoleCmd._debug(" - not an ack")
return
# loop through the results
for result in apdu.listOfReadAccessResults:
# here is the object identifier
objectIdentifier = result.objectIdentifier
if _debug:
DiscoverConsoleCmd._debug(" - objectIdentifier: %r",
objectIdentifier)
# now come the property values per object
for element in result.listOfResults:
# get the property and array index
propertyIdentifier = element.propertyIdentifier
if _debug:
DiscoverConsoleCmd._debug(
" - propertyIdentifier: %r",
propertyIdentifier)
propertyArrayIndex = element.propertyArrayIndex
if _debug:
DiscoverConsoleCmd._debug(
" - propertyArrayIndex: %r",
propertyArrayIndex)
# here is the read result
readResult = element.readResult
property_label = str(propertyIdentifier)
if propertyArrayIndex is not None:
property_label += "[" + str(
propertyArrayIndex) + "]"
# check for an error
if readResult.propertyAccessError is not None:
if interactive:
print("{} ! {}".format(
property_label,
readResult.propertyAccessError))
else:
# here is the value
propertyValue = readResult.propertyValue
# find the datatype
datatype = get_datatype(objectIdentifier[0],
propertyIdentifier)
if _debug:
DiscoverConsoleCmd._debug(
" - datatype: %r", datatype)
if not datatype:
str_value = '?'
else:
# special case for array parts, others are managed by cast_out
if issubclass(datatype,
Array) and (propertyArrayIndex
is not None):
if propertyArrayIndex == 0:
datatype = Unsigned
else:
datatype = datatype.subtype
if _debug:
DiscoverConsoleCmd._debug(
" - datatype: %r", datatype)
value = propertyValue.cast_out(datatype)
if _debug:
DiscoverConsoleCmd._debug(
" - value: %r", value)
# convert the value to a string
if hasattr(value, 'dict_contents'):
dict_contents = value.dict_contents(
as_class=OrderedDict)
str_value = json.dumps(dict_contents)
else:
str_value = str(value)
if interactive:
print("{}: {}".format(property_label,
str_value))
# save it in the snapshot
snapshot.upsert(devid,
'{}:{}'.format(*objectIdentifier),
property_label, str_value)
# do something for error/reject/abort
if iocb.ioError:
if interactive:
print(str(iocb.ioError))
except Exception as error:
DiscoverConsoleCmd._exception("exception: %r", error)
def build_rpm_request(self, args):
"""
Build request from args
"""
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ("all", "required", "optional"):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError(
"invalid property for object type : {} | {}".format(
(obj_type, prop_id)
)
)
# build a property reference
prop_reference = PropertyReference(propertyIdentifier=prop_id)
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
prop_reference_list.append(prop_reference)
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
read_access_spec_list.append(read_access_spec)
if not read_access_spec_list:
raise RuntimeError("at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list
)
request.pduDestination = Address(addr)
self._log.debug("{:<20} {!r}".format("REQUEST", request))
return request
def create_ReadPropertyMultipleRequest(args):
"""
Create a request to compare with called arg
"""
args = args.split()
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError(
"invalid property for object type : %s | %s" %
(obj_type, prop_id))
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id,
)
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError(
"at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list,
)
request.pduDestination = Address(addr)
return request
def do_read(self, args):
"""read <addr> ( <type> <inst> ( <prop> [ <indx> ] )... )..."""
args = args.split()
if _debug: ReadPropertyMultipleConsoleCmd._debug("do_read %r", args)
try:
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError, "unknown object type"
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError, "invalid property for object type"
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id, )
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError, "provide at least one property"
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError, "at least one read access specification required"
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list, )
request.pduDestination = Address(addr)
if _debug:
ReadPropertyMultipleConsoleCmd._debug(" - request: %r",
request)
# give it to the application
this_application.request(request)
except Exception, e:
ReadPropertyMultipleConsoleCmd._exception("exception: %r", e)
def readMultiple(self, args):
""" This function build a readMultiple request wait for the answer and
return the value
:param args: String with <addr> ( <type> <inst> ( <prop> [ <indx> ] )... )...
:returns: data read from device (str representing data like 10 or True)
*Example*::
import BAC0
myIPAddr = '192.168.1.10'
bacnet = BAC0.ReadWriteScript(localIPAddr = myIPAddr)
bacnet.readMultiple('2:5 analogInput 1 presentValue units')
will read controller with a MAC address of 5 in the network 2
Will ask for the present Value and the units of analog input 1 (AI:1)
"""
args = args.split()
print_debug("readMultiple %r", args)
try:
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError("invalid property for object type : %s | %s" % (obj_type, prop_id))
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id,
)
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError("at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list,
)
request.pduDestination = Address(addr)
print_debug(" - request: %r", request)
# give it to the application
self.this_application.request(request)
except ReadPropertyMultipleException as error:
ReadProperty._exception("exception: %r", error)
data = None
while True:
try:
data, evt = self.this_application.ResponseQueue.get(timeout=self._TIMEOUT)
evt.set()
return data
except Empty:
print('No response from controller')
return None
def do_read(self, args):
"""read <addr> ( <type> <inst> ( <prop> [ <indx> ] )... )..."""
args = args.split()
if _debug: ReadPropertyMultipleConsoleCmd._debug("do_read %r", args)
try:
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError("invalid property for object type")
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id,
)
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError("at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list,
)
request.pduDestination = Address(addr)
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - request: %r", request)
# make an IOCB
iocb = IOCB(request)
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - iocb: %r", iocb)
# give it to the application
this_application.request_io(iocb)
# wait for it to complete
iocb.wait()
# do something for success
if iocb.ioResponse:
apdu = iocb.ioResponse
# should be an ack
if not isinstance(apdu, ReadPropertyMultipleACK):
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - not an ack")
return
# loop through the results
for result in apdu.listOfReadAccessResults:
# here is the object identifier
objectIdentifier = result.objectIdentifier
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - objectIdentifier: %r", objectIdentifier)
# now come the property values per object
for element in result.listOfResults:
# get the property and array index
propertyIdentifier = element.propertyIdentifier
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - propertyIdentifier: %r", propertyIdentifier)
propertyArrayIndex = element.propertyArrayIndex
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - propertyArrayIndex: %r", propertyArrayIndex)
# here is the read result
readResult = element.readResult
sys.stdout.write(propertyIdentifier)
if propertyArrayIndex is not None:
sys.stdout.write("[" + str(propertyArrayIndex) + "]")
# check for an error
if readResult.propertyAccessError is not None:
sys.stdout.write(" ! " + str(readResult.propertyAccessError) + '\n')
else:
# here is the value
propertyValue = readResult.propertyValue
# find the datatype
datatype = get_datatype(objectIdentifier[0], propertyIdentifier)
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - datatype: %r", datatype)
if not datatype:
raise TypeError("unknown datatype")
# special case for array parts, others are managed by cast_out
if issubclass(datatype, Array) and (propertyArrayIndex is not None):
if propertyArrayIndex == 0:
value = propertyValue.cast_out(Unsigned)
else:
value = propertyValue.cast_out(datatype.subtype)
else:
value = propertyValue.cast_out(datatype)
if _debug: ReadPropertyMultipleConsoleCmd._debug(" - value: %r", value)
sys.stdout.write(" = " + str(value) + '\n')
sys.stdout.flush()
# do something for error/reject/abort
if iocb.ioError:
sys.stdout.write(str(iocb.ioError) + '\n')
except Exception as error:
ReadPropertyMultipleConsoleCmd._exception("exception: %r", error)
def readMultiple(self, args):
""" This function build a readMultiple request wait for the answer and
return the value
:param args: String with <addr> ( <type> <inst> ( <prop> [ <indx> ] )... )...
:returns: data read from device (str representing data like 10 or True)
*Example*::
import BAC0
myIPAddr = '192.168.1.10'
bacnet = BAC0.ReadWriteScript(localIPAddr = myIPAddr)
bacnet.readMultiple('2:5 analogInput 1 presentValue units')
will read controller with a MAC address of 5 in the network 2
Will ask for the present Value and the units of analog input 1 (AI:1)
"""
args = args.split()
print_debug("readMultiple %r", args)
try:
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError(
"invalid property for object type : %s | %s" %
(obj_type, prop_id))
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id, )
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError(
"at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list, )
request.pduDestination = Address(addr)
print_debug(" - request: %r", request)
# give it to the application
self.this_application.request(request)
except ReadPropertyMultipleException as error:
ReadProperty._exception("exception: %r", error)
data = None
while True:
try:
data, evt = self.this_application.ResponseQueue.get(
timeout=self._TIMEOUT)
evt.set()
return data
except Empty:
print('No response from controller')
return None
def read_properties(self,
target_address,
point_map,
max_per_request=None,
use_read_multiple=True):
"""Read a set of points and return the results"""
if not use_read_multiple:
return self.read_using_single_request(target_address, point_map)
#Set max_per_request really high if not set.
if max_per_request is None:
max_per_request = self._max_per_request
_log.debug("Reading {count} points on {target}, max per"
" scrape: {max}".format(count=len(point_map),
target=target_address,
max=max_per_request))
# This will be used to get the results mapped
# back on the the names
reverse_point_map = {}
#Used to group properties together for the request.
object_property_map = defaultdict(list)
for name, properties in point_map.iteritems():
if len(properties) == 3:
object_type, instance_number, property_name = properties
property_index = None
elif len(properties) == 4:
object_type, instance_number, property_name, property_index = properties
else:
_log.error(
"skipping {} in request to {}: incorrect number of parameters"
.format(name, target_address))
reverse_point_map[object_type, instance_number, property_name,
property_index] = name
object_property_map[object_type, instance_number].append(
(property_name, property_index))
result_dict = {}
finished = False
while not finished:
read_access_spec_list = []
count = 0
for _ in xrange(max_per_request):
try:
obj_data, properties = object_property_map.popitem()
except KeyError:
finished = True
break
obj_type, obj_inst = obj_data
prop_ref_list = []
for prop, prop_index in properties:
prop_ref = PropertyReference(propertyIdentifier=prop)
if prop_index is not None:
prop_ref.propertyArrayIndex = prop_index
prop_ref_list.append(prop_ref)
count += 1
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_ref_list)
read_access_spec_list.append(read_access_spec)
if read_access_spec_list:
_log.debug(
"Requesting {count} properties from {target}".format(
count=count, target=target_address))
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list)
request.pduDestination = Address(target_address)
iocb = self.iocb_class(request)
self.this_application.submit_request(iocb)
bacnet_results = iocb.ioResult.get(10)
_log.debug(
"Received read response from {target} count: {count}".
format(count=count, target=target_address))
for prop_tuple, value in bacnet_results.iteritems():
name = reverse_point_map[prop_tuple]
result_dict[name] = value
return result_dict
def create_ReadPropertyMultipleRequest(args):
"""
Create a request to compare with called arg
"""
args = args.split()
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError(
"invalid property for object type : %s | %s" %
(obj_type, prop_id))
# build a property reference
prop_reference = PropertyReference(propertyIdentifier=prop_id, )
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError("at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list, )
request.pduDestination = Address(addr)
return request
def read_properties(self, target_address, point_map, max_per_request=None):
"""Read a set of points and return the results"""
#Set max_per_request really high if not set.
if max_per_request is None:
max_per_request = 1000000
_log.debug("Reading {count} points on {target}, max per scrape: {max}".format(count=len(point_map),
target=target_address,
max=max_per_request))
#This will be used to get the results mapped
# back on the the names
reverse_point_map = {}
#Used to group properties together for the request.
object_property_map = defaultdict(list)
for name, properties in point_map.iteritems():
if len(properties) == 3:
object_type, instance_number, property_name = properties
property_index = None
elif len(properties) == 4:
object_type, instance_number, property_name, property_index = properties
else:
_log.error("skipping {} in request to {}: incorrect number of parameters".format(name, target_address))
reverse_point_map[object_type,
instance_number,
property_name,
property_index] = name
object_property_map[object_type,
instance_number].append((property_name, property_index))
result_dict={}
finished = False
while not finished:
read_access_spec_list = []
count = 0
for _ in xrange(max_per_request):
try:
obj_data, properties = object_property_map.popitem()
except KeyError:
finished = True
break
obj_type, obj_inst = obj_data
prop_ref_list = []
for prop, prop_index in properties:
prop_ref = PropertyReference(propertyIdentifier=prop)
if prop_index is not None:
prop_ref.propertyArrayIndex = prop_index
prop_ref_list.append(prop_ref)
count += 1
read_access_spec = ReadAccessSpecification(objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_ref_list)
read_access_spec_list.append(read_access_spec)
if read_access_spec_list:
_log.debug("Requesting {count} properties from {target}".format(count=count,
target=target_address))
request = ReadPropertyMultipleRequest(listOfReadAccessSpecs=read_access_spec_list)
request.pduDestination = Address(target_address)
iocb = self.iocb_class(request)
self.this_application.submit_request(iocb)
bacnet_results = iocb.ioResult.get(10)
_log.debug("Received read response from {target}".format(count=count,
target=target_address))
for prop_tuple, value in bacnet_results.iteritems():
name = reverse_point_map[prop_tuple]
result_dict[name] = value
return result_dict
def build_rpm_request(self, args, vendor_id=0):
"""
Build request from args
"""
self._log.debug(args)
i = 0
addr = args[i]
i += 1
vendor_id = vendor_id
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif "@obj_" in obj_type:
obj_type = int(obj_type.split("_")[1])
elif not get_object_class(obj_type, vendor_id=vendor_id):
raise ValueError("Unknown object type : {}".format(obj_type))
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if "@obj_" in prop_id:
break
if prop_id not in PropertyIdentifier.enumerations:
try:
if "@prop_" in prop_id:
prop_id = int(prop_id.split("_")[1])
self._log.debug(
"Proprietary property : {} | {} -> Vendor : {}"
.format(obj_type, prop_id, vendor_id))
else:
break
except:
break
elif prop_id in (
"all",
"required",
"optional",
"objectName",
"objectType",
"objectIdentifier",
"polarity",
):
pass
else:
datatype = get_datatype(obj_type,
prop_id,
vendor_id=vendor_id)
if not datatype:
raise ValueError(
"invalid property for object type : {} | {}".
format(obj_type, prop_id))
i += 1
# build a property reference
prop_reference = PropertyReference(propertyIdentifier=prop_id)
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
prop_reference_list.append(prop_reference)
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
read_access_spec_list.append(read_access_spec)
if not read_access_spec_list:
raise RuntimeError(
"at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list)
request.pduDestination = Address(addr)
return request
def build_rpm_request(self, args):
"""
Build request from args
"""
i = 0
addr = args[i]
i += 1
read_access_spec_list = []
while i < len(args):
obj_type = args[i]
i += 1
if obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
obj_inst = int(args[i])
i += 1
prop_reference_list = []
while i < len(args):
prop_id = args[i]
if prop_id not in PropertyIdentifier.enumerations:
break
i += 1
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError(
"invalid property for object type : {} | {}".format(
(obj_type, prop_id)))
# build a property reference
prop_reference = PropertyReference(propertyIdentifier=prop_id)
# check for an array index
if (i < len(args)) and args[i].isdigit():
prop_reference.propertyArrayIndex = int(args[i])
i += 1
prop_reference_list.append(prop_reference)
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list)
read_access_spec_list.append(read_access_spec)
if not read_access_spec_list:
raise RuntimeError(
"at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list)
request.pduDestination = Address(addr)
self._log.debug("{:<20} {!r}".format(
'REQUEST', request))
return request
def do_read(self, addr, properties):
"""read <addr> ( <type> <inst> ( <prop> [ <indx> ] )... )..."""
read_access_spec_list = []
try:
for obj_type, obj_inst, props in properties:
if type(obj_type) is int:
pass
elif obj_type.isdigit():
obj_type = int(obj_type)
elif not get_object_class(obj_type):
raise ValueError("unknown object type")
prop_reference_list = []
for prop_id, idx in props:
if prop_id not in PropertyIdentifier.enumerations:
break
if prop_id in ('all', 'required', 'optional'):
pass
else:
datatype = get_datatype(obj_type, prop_id)
if not datatype:
raise ValueError(
"invalid property for object type")
# build a property reference
prop_reference = PropertyReference(
propertyIdentifier=prop_id, )
# check for an array index
if idx is not None:
prop_reference.propertyArrayIndex = int(idx)
# add it to the list
prop_reference_list.append(prop_reference)
# check for at least one property
if not prop_reference_list:
raise ValueError("provide at least one property")
# build a read access specification
read_access_spec = ReadAccessSpecification(
objectIdentifier=(obj_type, obj_inst),
listOfPropertyReferences=prop_reference_list,
)
# add it to the list
read_access_spec_list.append(read_access_spec)
# check for at least one
if not read_access_spec_list:
raise RuntimeError(
"at least one read access specification required")
# build the request
request = ReadPropertyMultipleRequest(
listOfReadAccessSpecs=read_access_spec_list, )
request.pduDestination = Address(addr)
if _debug: logger.debug(" - request: %r", request)
self._request = request
# make an IOCB
iocb = IOCB(request)
if _debug: logger.debug(" - iocb: %r", iocb)
# give it to the application
self.request_io(iocb)
# do something for error/reject/abort
if iocb.ioError:
sys.stdout.write(str(iocb.ioError) + '\n')
except Exception as error:
logger.debug("exception: %r", error)
