o2app/entrypoints/redis_eventconsumer.py

   1 # Copyright (C) 2021 Wind River Systems, Inc.
   2 #
   3 #  Licensed under the Apache License, Version 2.0 (the "License");
   4 #  you may not use this file except in compliance with the License.
   5 #  You may obtain a copy of the License at
   6 #
   7 #      http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 #  Unless required by applicable law or agreed to in writing, software
  10 #  distributed under the License is distributed on an "AS IS" BASIS,
  11 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 #  See the License for the specific language governing permissions and
  13 #  limitations under the License.
  14
  15 # import json
  16
  17 import redis
  18 import json
  19 from o2app import bootstrap
  20 from o2common.config import config
  21 from o2dms.domain import commands
  22 from o2ims.domain import commands as imscmd
  23 from o2ims.domain.subscription_obj import Message2SMO, RegistrationMessage
  24 from o2ims.domain.alarm_obj import AlarmEvent2SMO
  25
  26 from o2common.helper import o2logging
  27 logger = o2logging.get_logger(__name__)
  28
  29 r = redis.Redis(**config.get_redis_host_and_port())
  30
  31 apibase = config.get_o2ims_api_base()
  32 api_monitoring_base = config.get_o2ims_monitoring_api_base()
  33 monitor_api_version = config.get_o2ims_monitoring_api_v1()
  34 inventory_api_version = config.get_o2ims_inventory_api_v1()
  35
  36
  37 def main():
  38     logger.info("Redis pubsub starting")
  39     bus = bootstrap.bootstrap()
  40     pubsub = r.pubsub(ignore_subscribe_messages=True)
  41     pubsub.subscribe("NfDeploymentStateChanged")
  42     pubsub.subscribe('ResourceChanged')
  43     pubsub.subscribe('OcloudChanged')
  44     pubsub.subscribe('AlarmEventChanged')
  45
  46     for m in pubsub.listen():
  47         try:
  48             handle_changed(m, bus)
  49         except Exception as ex:
  50             logger.warning("{}".format(str(ex)))
  51             continue
  52
  53
  54 def handle_changed(m, bus):
  55     logger.info("handling %s", m)
  56     channel = m['channel'].decode("UTF-8")
  57     if channel == "NfDeploymentStateChanged":
  58         datastr = m['data']
  59         data = json.loads(datastr)
  60         logger.info('HandleNfDeploymentStateChanged with cmd:{}'.format(data))
  61         cmd = commands.HandleNfDeploymentStateChanged(
  62             NfDeploymentId=data['NfDeploymentId'],
  63             FromState=data['FromState'],
  64             ToState=data['ToState']
  65         )
  66         bus.handle(cmd)
  67     elif channel == 'ResourceChanged':
  68         datastr = m['data']
  69         data = json.loads(datastr)
  70         logger.info('ResourceChanged with cmd:{}'.format(data))
  71         ref = apibase + inventory_api_version + '/resourcePools/' + \
  72             data['resourcePoolId'] + '/resources/' + data['id']
  73         cmd = imscmd.PubMessage2SMO(data=Message2SMO(
  74             id=data['id'], ref=ref,
  75             eventtype=data['notificationEventType'],
  76             updatetime=data['updatetime']))
  77         bus.handle(cmd)
  78     elif channel == 'OcloudChanged':
  79         datastr = m['data']
  80         data = json.loads(datastr)
  81         logger.info('OcloudChanged with cmd:{}'.format(data))
  82         cmd = imscmd.Register2SMO(data=RegistrationMessage(
  83             data['notificationEventType'],
  84             id=data['id']))
  85         bus.handle(cmd)
  86     elif channel == 'AlarmEventChanged':
  87         datastr = m['data']
  88         data = json.loads(datastr)
  89         logger.info('AlarmEventChanged with cmd:{}'.format(data))
  90         ref = api_monitoring_base + \
  91             monitor_api_version + '/alarms/' + data['id']
  92         cmd = imscmd.PubAlarm2SMO(data=AlarmEvent2SMO(
  93             id=data['id'], ref=ref,
  94             eventtype=data['notificationEventType'],
  95             updatetime=data['updatetime']))
  96         bus.handle(cmd)
  97     else:
  98         logger.info("unhandled:{}".format(channel))
  99
 100
 101 if __name__ == "__main__":
 102     main()