def _receive(self):
msg = self._connection.receive_from_socket(self._socket)
if msg is None:
return
elif isinstance(msg, ua.Message):
self._call_callback(msg.request_id(), msg.body())
elif isinstance(msg, ua.Acknowledge):
self._call_callback(0, msg)
elif isinstance(msg, ua.ErrorMessage):
self.logger.fatal("Received an error: %s", msg)
self._call_callback(0, ua.UaStatusCodeError(msg.Error.value))
else:
raise ua.UaError("Unsupported message type: %s", msg)
def delete_reference(self, target, reftype, forward=True, bidirectional=True):
"""
Delete given node's references from address space
"""
known_refs = self.get_references(reftype, includesubtypes=False)
targetid = _to_nodeid(target)
for r in known_refs:
if r.NodeId == targetid and r.IsForward == forward:
rdesc = r
break
else:
raise ua.UaStatusCodeError(ua.StatusCodes.BadNotFound)
ditem = self._fill_delete_reference_item(rdesc, bidirectional)
self.server.delete_references([ditem])[0].check()