# For those usages not covered by the Apache License, Version 2.0 please
# contact: bdiaz@whitestack.com or glavado@whitestack.com
##
+import asyncio
import json
import logging
import random
import uuid
-from kafka import KafkaProducer, KafkaConsumer
+from aiokafka import AIOKafkaProducer, AIOKafkaConsumer
from osm_policy_module.core.config import Config
class MonClient:
- def __init__(self):
+ def __init__(self, loop=None):
cfg = Config.instance()
self.kafka_server = '{}:{}'.format(cfg.OSMPOL_MESSAGE_HOST,
cfg.OSMPOL_MESSAGE_PORT)
- self.producer = KafkaProducer(bootstrap_servers=self.kafka_server,
- key_serializer=str.encode,
- value_serializer=str.encode)
+ if not loop:
+ loop = asyncio.get_event_loop()
+ self.loop = loop
- def create_alarm(self, metric_name: str, ns_id: str, vdu_name: str, vnf_member_index: int, threshold: int,
- statistic: str, operation: str):
- cor_id = random.randint(1, 1000000)
+ async def create_alarm(self, metric_name: str, ns_id: str, vdu_name: str, vnf_member_index: int, threshold: int,
+ statistic: str, operation: str):
+ cor_id = random.randint(1, 10e7)
msg = self._build_create_alarm_payload(cor_id, metric_name, ns_id, vdu_name, vnf_member_index, threshold,
statistic,
operation)
log.info("Sending create_alarm_request %s", msg)
- self.producer.send(topic='alarm_request', key='create_alarm_request', value=json.dumps(msg))
- self.producer.flush()
- consumer = KafkaConsumer(bootstrap_servers=self.kafka_server,
- key_deserializer=bytes.decode,
- value_deserializer=bytes.decode,
- consumer_timeout_ms=10000,
- group_id='mon-client-' + str(uuid.uuid4()))
- consumer.subscribe(['alarm_response'])
- for message in consumer:
- if message.key == 'create_alarm_response':
- content = json.loads(message.value)
- log.info("Received create_alarm_response %s", content)
- if self._is_alarm_response_correlation_id_eq(cor_id, content):
- if not content['alarm_create_response']['status']:
- raise ValueError("Error creating alarm in MON")
- alarm_uuid = content['alarm_create_response']['alarm_uuid']
- return alarm_uuid
-
+ producer = AIOKafkaProducer(loop=self.loop,
+ bootstrap_servers=self.kafka_server,
+ key_serializer=str.encode,
+ value_serializer=str.encode)
+ await producer.start()
+ consumer = AIOKafkaConsumer(
+ "alarm_response",
+ loop=self.loop,
+ bootstrap_servers=self.kafka_server,
+ group_id="pol-consumer-" + str(uuid.uuid4()),
+ enable_auto_commit=False,
+ key_deserializer=bytes.decode,
+ value_deserializer=bytes.decode,
+ consumer_timeout_ms=10000)
+ await consumer.start()
+ try:
+ await producer.send_and_wait("alarm_request", key="create_alarm_request", value=json.dumps(msg))
+ finally:
+ await producer.stop()
+ try:
+ async for message in consumer:
+ if message.key == 'create_alarm_response':
+ content = json.loads(message.value)
+ log.info("Received create_alarm_response %s", content)
+ if self._is_alarm_response_correlation_id_eq(cor_id, content):
+ if not content['alarm_create_response']['status']:
+ raise ValueError("Error creating alarm in MON")
+ alarm_uuid = content['alarm_create_response']['alarm_uuid']
+ await consumer.stop()
+ return alarm_uuid
+ finally:
+ await consumer.stop()
raise ValueError('Timeout: No alarm creation response from MON. Is MON up?')
- def delete_alarm(self, ns_id: str, vnf_member_index: int, vdu_name: str, alarm_uuid: str):
- cor_id = random.randint(1, 1000000)
+ async def delete_alarm(self, ns_id: str, vnf_member_index: int, vdu_name: str, alarm_uuid: str):
+ cor_id = random.randint(1, 10e7)
msg = self._build_delete_alarm_payload(cor_id, ns_id, vdu_name, vnf_member_index, alarm_uuid)
log.info("Sending delete_alarm_request %s", msg)
- self.producer.send(topic='alarm_request', key='delete_alarm_request', value=json.dumps(msg))
- self.producer.flush()
- consumer = KafkaConsumer(bootstrap_servers=self.kafka_server,
- key_deserializer=bytes.decode,
- value_deserializer=bytes.decode,
- consumer_timeout_ms=10000)
- consumer.subscribe(['alarm_response'])
- for message in consumer:
- if message.key == 'delete_alarm_response':
- content = json.loads(message.value)
- log.info("Received delete_alarm_response %s", content)
- if self._is_alarm_response_correlation_id_eq(cor_id, content):
- if not content['alarm_delete_response']['status']:
- raise ValueError("Error deleting alarm in MON")
- alarm_uuid = content['alarm_delete_response']['alarm_uuid']
- return alarm_uuid
-
- raise ValueError('Timeout: No alarm creation response from MON. Is MON up?')
+ producer = AIOKafkaProducer(loop=self.loop,
+ bootstrap_servers=self.kafka_server,
+ key_serializer=str.encode,
+ value_serializer=str.encode)
+ await producer.start()
+ consumer = AIOKafkaConsumer(
+ "alarm_response",
+ loop=self.loop,
+ bootstrap_servers=self.kafka_server,
+ group_id="pol-consumer-" + str(uuid.uuid4()),
+ enable_auto_commit=False,
+ key_deserializer=bytes.decode,
+ value_deserializer=bytes.decode,
+ consumer_timeout_ms=10000)
+ await consumer.start()
+ try:
+ await producer.send_and_wait("alarm_request", key="delete_alarm_request", value=json.dumps(msg))
+ finally:
+ await producer.stop()
+ try:
+ async for message in consumer:
+ if message.key == 'delete_alarm_response':
+ content = json.loads(message.value)
+ log.info("Received delete_alarm_response %s", content)
+ if self._is_alarm_response_correlation_id_eq(cor_id, content):
+ if not content['alarm_delete_response']['status']:
+ raise ValueError("Error deleting alarm in MON")
+ alarm_uuid = content['alarm_delete_response']['alarm_uuid']
+ await consumer.stop()
+ return alarm_uuid
+ finally:
+ await consumer.stop()
+ raise ValueError('Timeout: No alarm deletion response from MON. Is MON up?')
def _build_create_alarm_payload(self, cor_id: int, metric_name: str, ns_id: str, vdu_name: str,
vnf_member_index: int,
projects / osm / POL.git / blobdiff