mirror of
https://github.com/JoelBender/bacpypes
synced 2025-10-27 00:57:47 +08:00
141 lines
4.0 KiB
Python
Executable File
141 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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This application is a special example of building a custom data structure
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to be written to a proprietary property of a proprietary object. Unlike the
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other 'write property' sample applications, this one make no attempt to
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translate keywords into object types and property identifiers, it only takes
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integers.
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"""
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import sys
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from bacpypes.debugging import bacpypes_debugging, ModuleLogger, xtob
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from bacpypes.consolelogging import ConfigArgumentParser
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from bacpypes.consolecmd import ConsoleCmd
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from bacpypes.core import run, enable_sleeping
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from bacpypes.iocb import IOCB
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from bacpypes.pdu import Address
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from bacpypes.app import BIPSimpleApplication
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from bacpypes.local.device import LocalDeviceObject
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from bacpypes.primitivedata import TagList, OpeningTag, ClosingTag, ContextTag, ObjectIdentifier
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from bacpypes.constructeddata import Any
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from bacpypes.apdu import WritePropertyRequest, SimpleAckPDU
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# some debugging
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_debug = 0
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_log = ModuleLogger(globals())
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# globals
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this_application = None
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#
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# WriteSomethingConsoleCmd
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#
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@bacpypes_debugging
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class WriteSomethingConsoleCmd(ConsoleCmd):
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def do_write(self, args):
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"""write <addr> <objid> <prop> [ <indx> ]"""
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args = args.split()
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if _debug: WriteSomethingConsoleCmd._debug("do_write %r", args)
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try:
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addr, obj_id, prop_id = args[:3]
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obj_id = ObjectIdentifier(obj_id).value
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prop_id = int(prop_id)
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# build a request
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request = WritePropertyRequest(
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objectIdentifier=obj_id,
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propertyIdentifier=prop_id,
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)
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request.pduDestination = Address(addr)
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if len(args) == 4:
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request.propertyArrayIndex = int(args[3])
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# build a custom datastructure
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tag_list = TagList([
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OpeningTag(1),
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ContextTag(0, xtob('9c40')),
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ContextTag(1, xtob('02')),
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ContextTag(2, xtob('02')),
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ClosingTag(1)
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])
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if _debug: WriteSomethingConsoleCmd._debug(" - tag_list: %r", tag_list)
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# stuff the tag list into an Any
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request.propertyValue = Any()
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request.propertyValue.decode(tag_list)
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if _debug: WriteSomethingConsoleCmd._debug(" - request: %r", request)
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# make an IOCB
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iocb = IOCB(request)
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if _debug: WriteSomethingConsoleCmd._debug(" - iocb: %r", iocb)
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# give it to the application
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deferred(this_application.request_io, iocb)
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# wait for it to complete
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iocb.wait()
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# do something for success
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if iocb.ioResponse:
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# should be an ack
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if not isinstance(iocb.ioResponse, SimpleAckPDU):
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if _debug: WriteSomethingConsoleCmd._debug(" - not an ack")
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return
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sys.stdout.write("ack\n")
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# do something for error/reject/abort
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if iocb.ioError:
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sys.stdout.write(str(iocb.ioError) + '\n')
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except Exception as error:
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WriteSomethingConsoleCmd._exception("exception: %r", error)
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#
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# __main__
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#
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def main():
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global this_application
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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(ini=args.ini)
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if _debug: _log.debug(" - this_device: %r", this_device)
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# make a simple application
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this_application = BIPSimpleApplication(this_device, args.ini.address)
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if _debug: _log.debug(" - this_application: %r", this_application)
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# make a console
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this_console = WriteSomethingConsoleCmd()
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if _debug: _log.debug(" - this_console: %r", this_console)
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# enable sleeping will help with threads
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enable_sleeping()
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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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