mirror of
https://github.com/JoelBender/bacpypes
synced 2025-09-28 22:15:23 +08:00
141 lines
4.0 KiB
Python
Executable File
141 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
"""
|
|
This sample application shows how to extend the basic functionality of a device
|
|
to support the ReadPropertyMultiple service.
|
|
"""
|
|
|
|
import sys
|
|
import random
|
|
|
|
from bacpypes.debugging import bacpypes_debugging, ModuleLogger
|
|
from bacpypes.consolelogging import ConfigArgumentParser
|
|
|
|
from bacpypes.core import run
|
|
|
|
from bacpypes.primitivedata import Real
|
|
from bacpypes.object import AnalogValueObject, Property, register_object_type
|
|
from bacpypes.errors import ExecutionError
|
|
|
|
from bacpypes.app import BIPSimpleApplication
|
|
from bacpypes.service.device import ReadWritePropertyMultipleServices, \
|
|
LocalDeviceObject
|
|
|
|
# some debugging
|
|
_debug = 0
|
|
_log = ModuleLogger(globals())
|
|
|
|
#
|
|
# ReadPropertyMultipleApplication
|
|
#
|
|
|
|
class ReadPropertyMultipleApplication(BIPSimpleApplication, ReadWritePropertyMultipleServices):
|
|
pass
|
|
|
|
#
|
|
# RandomValueProperty
|
|
#
|
|
|
|
class RandomValueProperty(Property):
|
|
|
|
def __init__(self, identifier):
|
|
if _debug: RandomValueProperty._debug("__init__ %r", identifier)
|
|
Property.__init__(self, identifier, Real, default=None, optional=True, mutable=False)
|
|
|
|
def ReadProperty(self, obj, arrayIndex=None):
|
|
if _debug: RandomValueProperty._debug("ReadProperty %r arrayIndex=%r", obj, arrayIndex)
|
|
|
|
# access an array
|
|
if arrayIndex is not None:
|
|
raise ExecutionError(errorClass='property', errorCode='propertyIsNotAnArray')
|
|
|
|
# return a random value
|
|
value = random.random() * 100.0
|
|
if _debug: RandomValueProperty._debug(" - value: %r", value)
|
|
|
|
return value
|
|
|
|
def WriteProperty(self, obj, value, arrayIndex=None, priority=None, direct=False):
|
|
if _debug: RandomValueProperty._debug("WriteProperty %r %r arrayIndex=%r priority=%r direct=%r", obj, value, arrayIndex, priority, direct)
|
|
raise ExecutionError(errorClass='property', errorCode='writeAccessDenied')
|
|
|
|
bacpypes_debugging(RandomValueProperty)
|
|
|
|
#
|
|
# Random Value Object Type
|
|
#
|
|
|
|
class RandomAnalogValueObject(AnalogValueObject):
|
|
|
|
properties = [
|
|
RandomValueProperty('presentValue'),
|
|
]
|
|
|
|
def __init__(self, **kwargs):
|
|
if _debug: RandomAnalogValueObject._debug("__init__ %r", kwargs)
|
|
AnalogValueObject.__init__(self, **kwargs)
|
|
|
|
bacpypes_debugging(RandomAnalogValueObject)
|
|
register_object_type(RandomAnalogValueObject)
|
|
|
|
#
|
|
# __main__
|
|
#
|
|
|
|
def main():
|
|
# check the version
|
|
if (sys.version_info[:2] != (2, 5)):
|
|
sys.stderr.write("Python 2.5 only\n")
|
|
sys.exit(1)
|
|
|
|
# parse the command line arguments
|
|
args = ConfigArgumentParser(description=__doc__).parse_args()
|
|
|
|
if _debug: _log.debug("initialization")
|
|
if _debug: _log.debug(" - args: %r", args)
|
|
|
|
# make a device object
|
|
this_device = LocalDeviceObject(
|
|
objectName=args.ini.objectname,
|
|
objectIdentifier=int(args.ini.objectidentifier),
|
|
maxApduLengthAccepted=int(args.ini.maxapdulengthaccepted),
|
|
segmentationSupported=args.ini.segmentationsupported,
|
|
vendorIdentifier=int(args.ini.vendoridentifier),
|
|
)
|
|
|
|
# make a sample application
|
|
this_application = ReadPropertyMultipleApplication(this_device, args.ini.address)
|
|
|
|
# make a random input object
|
|
ravo1 = RandomAnalogValueObject(
|
|
objectIdentifier=('analogValue', 1), objectName='Random1'
|
|
)
|
|
_log.debug(" - ravo1: %r", ravo1)
|
|
|
|
ravo2 = RandomAnalogValueObject(
|
|
objectIdentifier=('analogValue', 2), objectName='Random2'
|
|
)
|
|
_log.debug(" - ravo2: %r", ravo2)
|
|
|
|
# add it to the device
|
|
this_application.add_object(ravo1)
|
|
this_application.add_object(ravo2)
|
|
_log.debug(" - object list: %r", this_device.objectList)
|
|
|
|
# get the services supported
|
|
services_supported = this_application.get_services_supported()
|
|
if _debug: _log.debug(" - services_supported: %r", services_supported)
|
|
|
|
# let the device object know
|
|
this_device.protocolServicesSupported = services_supported.value
|
|
|
|
_log.debug("running")
|
|
|
|
run()
|
|
|
|
_log.debug("fini")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|