+ async def delete_alarm(
+ self, ns_id: str, vnf_member_index: str, vdu_name: str, alarm_uuid: str
+ ):
+ cor_id = SystemRandom().randint(1, 10e7)
+ msg = self._build_delete_alarm_payload(
+ cor_id, ns_id, vdu_name, vnf_member_index, alarm_uuid
+ )
+ log.debug("Sending delete_alarm_request %s", msg)
+ producer = AIOKafkaProducer(
+ bootstrap_servers=self.kafka_server,
+ key_serializer=str.encode,
+ value_serializer=str.encode,
+ )
+ await producer.start()
+ try:
+ await producer.send_and_wait(
+ "alarm_request", key="delete_alarm_request", value=json.dumps(msg)
+ )
+ finally:
+ await producer.stop()
+ log.debug("Waiting for delete_alarm_response...")
+ consumer = AIOKafkaConsumer(
+ "alarm_response_" + str(cor_id),
+ bootstrap_servers=self.kafka_server,
+ key_deserializer=bytes.decode,
+ value_deserializer=bytes.decode,
+ auto_offset_reset="earliest",
+ )
+ await consumer.start()
+ alarm_uuid = None
+ try:
+ async for message in consumer:
+ try:
+ content = json.loads(message.value)
+ except JSONDecodeError:
+ content = yaml.safe_load(message.value)
+ if content["alarm_delete_response"]["correlation_id"] == cor_id:
+ log.debug("Received delete_alarm_response %s", content)
+ if not content["alarm_delete_response"]["status"]:
+ raise ValueError(
+ "Error deleting alarm in MON. Response status is False."
+ )
+ alarm_uuid = content["alarm_delete_response"]["alarm_uuid"]
+ break
+ finally:
+ await consumer.stop()
+ if not alarm_uuid:
+ raise ValueError("No alarm deletion response from MON. Is MON up?")
+ return alarm_uuid