1 # ============LICENSE_START===================================================
2 # Copyright (C) 2019-2020 Nordix Foundation.
3 # ============================================================================
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
16 # SPDX-License-Identifier: Apache-2.0
17 # ============LICENSE_END=====================================================
19 from signal import signal, SIGTERM
21 from mod import db, create_app, launch_api_server, logger
22 from mod.aai_event_handler import process_aai_events
23 from mod.exit_handler import ExitHandler
24 from mod.pmsh_utils import AppConfig, PeriodicTask
25 from mod.policy_response_handler import PolicyResponseHandler
26 from mod.subscription_handler import SubscriptionHandler
33 app.app_context().push()
34 db.create_all(app=app)
35 app_conf = AppConfig()
36 policy_mr_pub = app_conf.get_mr_pub('policy_pm_publisher')
37 policy_mr_sub = app_conf.get_mr_sub('policy_pm_subscriber')
38 aai_event_mr_sub = app_conf.get_mr_sub('aai_subscriber')
39 except Exception as e:
40 logger.error(f'Failed to get config and create application: {e}', exc_info=True)
43 app_conf_thread = PeriodicTask(10, app_conf.refresh_config)
44 app_conf_thread.start()
46 policy_response_handler = PolicyResponseHandler(policy_mr_sub, app_conf, app)
47 policy_response_handler_thread = PeriodicTask(25, policy_response_handler.poll_policy_topic)
49 aai_event_thread = PeriodicTask(20, process_aai_events,
50 args=(aai_event_mr_sub, policy_mr_pub, app, app_conf))
52 subscription_handler = SubscriptionHandler(policy_mr_pub, app, app_conf, aai_event_thread,
53 policy_response_handler_thread)
55 subscription_handler_thread = PeriodicTask(30, subscription_handler.execute)
56 subscription_handler_thread.start()
58 periodic_tasks = [app_conf_thread, aai_event_thread, subscription_handler_thread,
59 policy_response_handler_thread]
61 signal(SIGTERM, ExitHandler(periodic_tasks=periodic_tasks,
62 app_conf=app_conf, subscription_handler=subscription_handler))
63 launch_api_server(app_conf)
65 except Exception as e:
66 logger.error(f'Failed to initialise PMSH: {e}', exc_info=True)
70 if __name__ == '__main__':