Source code for BAC0.core.functions.Reinitialize
#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 by Christian Tremblay, P.Eng <christian.tremblay@servisys.com>
# Licensed under LGPLv3, see file LICENSE in this source tree.
#
"""
Reinitialize.py - creation of ReinitializeDeviceRequest
"""
from bacpypes.apdu import (
ReinitializeDeviceRequest,
ReinitializeDeviceRequestReinitializedStateOfDevice,
SimpleAckPDU,
)
from bacpypes.core import deferred
from bacpypes.iocb import IOCB
# --- 3rd party modules ---
from bacpypes.pdu import Address
from bacpypes.primitivedata import CharacterString
from ...core.io.Read import find_reason
from ...core.utils.notes import note_and_log
from ..io.IOExceptions import ApplicationNotStarted, NoResponseFromController
# --- standard Python modules ---
[docs]@note_and_log
class Reinitialize:
"""
Mixin to support Reinitialize from BAC0 to other devices
"""
[docs] def reinitialize(self, address=None, password=None, state="coldstart"):
"""
Will send reinitialize request
"""
if not self._started:
raise ApplicationNotStarted("BACnet stack not running - use startApp()")
if not address:
raise ValueError("Provide address for request")
# build a request
request = ReinitializeDeviceRequest()
request.reinitializedStateOfDevice = (
ReinitializeDeviceRequestReinitializedStateOfDevice.enumerations[state]
)
request.pduDestination = Address(address)
request.password = CharacterString(password)
self._log.debug("{:>12} {}".format("- request:", request))
iocb = IOCB(request) # make an IOCB
# pass to the BACnet stack
deferred(self.this_application.request_io, iocb)
# Unconfirmed request...so wait until complete
iocb.wait() # Wait for BACnet response
if iocb.ioResponse: # successful response
apdu = iocb.ioResponse
if not isinstance(apdu, SimpleAckPDU): # expect an ACK
self._log.warning("Not an ack, see debug for more infos.")
self._log.debug("Not an ack. | APDU : {} / {}".format(apdu, type(apdu)))
return
if iocb.ioError: # unsuccessful: error/reject/abort
apdu = iocb.ioError
reason = find_reason(apdu)
raise NoResponseFromController("APDU Abort Reason : {}".format(reason))
self._log.info("Reinitialize request sent to device : {}".format(address))