c5f5cc2a24bc8dbdcbed2e0377cde81256dd432e
1 # -*- coding: utf-8 -*-
3 # Copyright 2018 Whitestack, LLC
4 # *************************************************************
6 # This file is part of OSM Monitoring module
7 # All Rights Reserved to Whitestack, LLC
9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
10 # not use this file except in compliance with the License. You may obtain
11 # a copy of the License at
13 # http://www.apache.org/licenses/LICENSE-2.0
15 # Unless required by applicable law or agreed to in writing, software
16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
18 # License for the specific language governing permissions and limitations
20 # For those usages not covered by the Apache License, Version 2.0 please
21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
24 MON component in charge of CRUD operations for vim_accounts and alarms. It uses the message bus to communicate.
31 from osm_mon
.core
.config
import Config
32 from osm_mon
.core
.message_bus_client
import MessageBusClient
33 from osm_mon
.core
.response
import ResponseBuilder
34 from osm_mon
.server
.service
import ServerService
36 log
= logging
.getLogger(__name__
)
41 def __init__(self
, config
: Config
, loop
=None):
44 loop
= asyncio
.get_event_loop()
46 self
.msg_bus
= MessageBusClient(config
)
47 self
.service
= ServerService(config
)
50 self
.loop
.run_until_complete(self
.start())
52 async def start(self
, wait_time
=5):
58 await self
.msg_bus
.aioread(topics
, self
._process
_msg
)
60 except Exception as e
:
61 # Failed to subscribe to kafka topic
62 log
.exception("Error when subscribing to topics %s", str(topics
))
63 log
.exception("Exception %s", str(e
))
64 # Wait for some time for kaka to stabilize and then reattempt to subscribe again
66 log
.info("Retrying to subscribe the kafka topic(s) %s", str(topics
))
68 async def _process_msg(self
, topic
, key
, values
):
69 log
.info("Message arrived: %s", values
)
72 if topic
== "alarm_request":
73 if key
== "create_alarm_request":
74 alarm_details
= values
['alarm_create_request']
75 cor_id
= alarm_details
['correlation_id']
76 response_builder
= ResponseBuilder()
78 alarm
= self
.service
.create_alarm(
79 alarm_details
['alarm_name'],
80 alarm_details
['threshold_value'],
81 alarm_details
['operation'].lower(),
82 alarm_details
['severity'].lower(),
83 alarm_details
['statistic'].lower(),
84 alarm_details
['metric_name'],
87 response
= response_builder
.generate_response('create_alarm_response',
92 log
.exception("Error creating alarm: ")
93 response
= response_builder
.generate_response('create_alarm_response',
97 await self
._publish
_response
('alarm_response_' + str(cor_id
), 'create_alarm_response', response
)
99 if key
== "delete_alarm_request":
100 alarm_details
= values
['alarm_delete_request']
101 alarm_uuid
= alarm_details
['alarm_uuid']
102 response_builder
= ResponseBuilder()
103 cor_id
= alarm_details
['correlation_id']
105 self
.service
.delete_alarm(alarm_uuid
)
106 response
= response_builder
.generate_response('delete_alarm_response',
111 log
.exception("Error deleting alarm: ")
112 response
= response_builder
.generate_response('delete_alarm_response',
116 await self
._publish
_response
('alarm_response_' + str(cor_id
), 'delete_alarm_response', response
)
119 log
.exception("Exception processing message: ")
121 async def _publish_response(self
, topic
: str, key
: str, msg
: dict):
122 log
.info("Sending response %s to topic %s with key %s", json
.dumps(msg
), topic
, key
)
123 await self
.msg_bus
.aiowrite(topic
, key
, msg
)