+def alarm_event_record_ack(alarmEventRecordId: str,
+ uow: unit_of_work.AbstractUnitOfWork):
+ with uow:
+ alarm_event_record = uow.alarm_event_records.get(alarmEventRecordId)
+ # Check the record does not exist, return None. Otherwise, the
+ # acknowledge request will update the record even if it is
+ # acknowledged.
+ if alarm_event_record is None:
+ return None
+ alarm_event_record.alarmAcknowledged = True
+ alarm_event_record.alarmAcknowledgeTime = datetime.\
+ now().strftime("%Y-%m-%dT%H:%M:%S")
+ uow.alarm_event_records.update(alarm_event_record)
+ uow.commit()
+
+ result = AlarmEventRecordModifications(True)
+ return result
+
+
+def alarm_event_record_clear(alarmEventRecordId: str,
+ uow: unit_of_work.AbstractUnitOfWork):
+ with uow:
+ alarm_event_record = uow.alarm_event_records.get(alarmEventRecordId)
+ if alarm_event_record is None:
+ return None
+ elif alarm_event_record.perceivedSeverity == \
+ PerceivedSeverityEnum.CLEARED:
+ raise BadRequestException(
+ "Alarm Event Record {} has already been marked as CLEARED."
+ .format(alarmEventRecordId))
+ alarm_event_record.events.append(events.AlarmEventPurged(
+ id=alarm_event_record.alarmEventRecordId,
+ notificationEventType=AlarmNotificationEventEnum.CLEAR,
+ updatetime=alarm_event_record.alarmAcknowledgeTime))
+
+ uow.alarm_event_records.update(alarm_event_record)
+ uow.commit()
+
+ result = AlarmEventRecordModifications(
+ clear=PerceivedSeverityEnum.CLEARED)
+ _handle_events(messagebus.MessageBus.get_instance())
+ return result
+
+
+def _handle_events(bus: messagebus.MessageBus):
+ # handle events
+ events = bus.uow.collect_new_events()
+ for event in events:
+ bus.handle(event)
+ return True
+
+