GroupObject Sample

GroupObject.py

#!/usr/bin/env python

"""
This sample application shows how to create a GroupObject.
"""

import os
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.apdu import ReadAccessSpecification, PropertyReference
from bacpypes.object import AnalogValueObject, GroupObject
from bacpypes.errors import ExecutionError

from bacpypes.app import BIPSimpleApplication
from bacpypes.local.device import LocalDeviceObject

# some debugging
_debug = 0
_log = ModuleLogger(globals())

#
#   __main__
#


def main():
    # 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=("device", int(args.ini.objectidentifier)),
        maxApduLengthAccepted=int(args.ini.maxapdulengthaccepted),
        segmentationSupported=args.ini.segmentationsupported,
        vendorIdentifier=int(args.ini.vendoridentifier),
    )

    # make a sample application
    this_application = BIPSimpleApplication(this_device, args.ini.address)

    # make an analog value object
    analog_value_1 = AnalogValueObject(
        objectIdentifier=("analogValue", 1),
        objectName="AVO1",
    )
    _log.debug("    - analog_value_1: %r", analog_value_1)
    this_application.add_object(analog_value_1)

    # make a group object that references the analog value object
    group_1 = GroupObject(
        objectIdentifier=("group", 1),
        objectName="GO1",
        description="Group Object Description",
        listOfGroupMembers=[
            ReadAccessSpecification(
                objectIdentifier=("analogValue", 1),
                listOfPropertyReferences=[
                    PropertyReference(propertyIdentifier="presentValue")
                ],
            )
        ],
    )
    _log.debug("    - group_1: %r", group_1)
    this_application.add_object(group_1)

    # make sure they are all there
    _log.debug("    - object list: %r", this_device.objectList)

    _log.debug("running")

    run()

    _log.debug("fini")


if __name__ == "__main__":
    main()