mirror of
https://github.com/JoelBender/bacpypes
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123 lines
3.5 KiB
Python
Executable File
123 lines
3.5 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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This sample application mocks up an accumulator object.
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"""
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from bacpypes.debugging import bacpypes_debugging, ModuleLogger
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from bacpypes.consolelogging import ConfigArgumentParser
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from bacpypes.core import run
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from bacpypes.task import RecurringTask
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from bacpypes.primitivedata import Date, Time
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from bacpypes.basetypes import DateTime, Scale
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from bacpypes.object import AccumulatorObject
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from bacpypes.app import BIPSimpleApplication
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from bacpypes.service.device import LocalDeviceObject
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from bacpypes.service.object import ReadWritePropertyMultipleServices
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# some debugging
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_debug = 0
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_log = ModuleLogger(globals())
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#
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# PulseTask
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#
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class PulseTask(RecurringTask):
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def __init__(self, accumulator, increment, interval):
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if _debug: PulseTask._debug("__init__ %r %r %r", accumulator, increment, interval)
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# this is a recurring task
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RecurringTask.__init__(self, interval)
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# install it
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self.install_task()
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# save the parameters
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self.accumulator = accumulator
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self.increment = increment
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def process_task(self):
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if _debug: PulseTask._debug("process_task")
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# increment the present value
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self.accumulator.presentValue += self.increment
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# update the value change time
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current_date = Date().now().value
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current_time = Time().now().value
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value_change_time = DateTime(date=current_date, time=current_time)
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if _debug: PulseTask._debug(" - value_change_time: %r", value_change_time)
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self.accumulator.valueChangeTime = value_change_time
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bacpypes_debugging(PulseTask)
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#
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# __main__
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#
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def main():
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# parse the command line arguments
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args = ConfigArgumentParser(description=__doc__).parse_args()
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if _debug: _log.debug("initialization")
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if _debug: _log.debug(" - args: %r", args)
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# make a device object
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this_device = LocalDeviceObject(
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objectName=args.ini.objectname,
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objectIdentifier=('device', int(args.ini.objectidentifier)),
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maxApduLengthAccepted=int(args.ini.maxapdulengthaccepted),
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segmentationSupported=args.ini.segmentationsupported,
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vendorIdentifier=int(args.ini.vendoridentifier),
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)
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# make a sample application
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this_application = BIPSimpleApplication(this_device, args.ini.address)
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# add the additional service
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this_application.add_capability(ReadWritePropertyMultipleServices)
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# get the services supported
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services_supported = this_application.get_services_supported()
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if _debug: _log.debug(" - services_supported: %r", services_supported)
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# let the device object know
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this_device.protocolServicesSupported = services_supported.value
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# make a random input object
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accumulator = AccumulatorObject(
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objectIdentifier=('accumulator', 1),
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objectName='Something1',
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presentValue=100,
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statusFlags = [0, 0, 0, 0],
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eventState='normal',
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scale=Scale(floatScale=2.3),
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units='btusPerPoundDryAir',
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)
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if _debug: _log.debug(" - accumulator: %r", accumulator)
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# add it to the device
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this_application.add_object(accumulator)
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if _debug: _log.debug(" - object list: %r", this_device.objectList)
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# create a task that bumps the value by one every 10 seconds
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pulse_task = PulseTask(accumulator, 1, 10 * 1000)
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if _debug: _log.debug(" - pulse_task: %r", pulse_task)
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_log.debug("running")
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run()
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_log.debug("fini")
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if __name__ == "__main__":
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main()
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