Replaces direct use of aiokafka with osm_common message bus in agent and

[osm/POL.git] / osm_policy_module / core / database.py

diff --git a/osm_policy_module/core/database.py b/osm_policy_module/core/database.py
index 7702cfd..330d8c5 100644 (file)
--- a/osm_policy_module/core/database.py
+++ b/osm_policy_module/core/database.py
@@ -24,15 +24,14 @@
 import datetime
 import logging
 
-from peewee import CharField, IntegerField, ForeignKeyField, Model, TextField, AutoField, DateTimeField
+from peewee import CharField, IntegerField, ForeignKeyField, Model, TextField, AutoField, DateTimeField, Proxy
 from playhouse.db_url import connect
 
 from osm_policy_module.core.config import Config
 
 log = logging.getLogger(__name__)
-cfg = Config.instance()
 
-db = connect(cfg.OSMPOL_SQL_DATABASE_URI)
+db = Proxy()
 
 
 class BaseModel(Model):
@@ -53,27 +52,31 @@ class ScalingPolicy(BaseModel):
     name = CharField()
     cooldown_time = IntegerField()
     last_scale = DateTimeField(default=datetime.datetime.now)
-    scaling_group = ForeignKeyField(ScalingGroup, related_name='scaling_policies')
+    scaling_group = ForeignKeyField(ScalingGroup, related_name='scaling_policies', on_delete='CASCADE')
 
 
 class ScalingCriteria(BaseModel):
     name = CharField()
-    scaling_policy = ForeignKeyField(ScalingPolicy, related_name='scaling_criterias')
+    scaling_policy = ForeignKeyField(ScalingPolicy, related_name='scaling_criterias', on_delete='CASCADE')
 
 
 class ScalingAlarm(BaseModel):
-    alarm_id = CharField()
+    alarm_uuid = CharField(unique=True)
     action = CharField()
     vnf_member_index = IntegerField()
     vdu_name = CharField()
-    scaling_criteria = ForeignKeyField(ScalingCriteria, related_name='scaling_alarms')
+    scaling_criteria = ForeignKeyField(ScalingCriteria, related_name='scaling_alarms', on_delete='CASCADE')
 
 
 class DatabaseManager:
+    def init_db(self, config: Config):
+        db.initialize(connect(config.get('sql', 'database_uri')))
+        self.create_tables()
+
     def create_tables(self):
-        try:
-            db.connect()
+        with db.atomic():
             db.create_tables([ScalingGroup, ScalingPolicy, ScalingCriteria, ScalingAlarm])
-            db.close()
-        except Exception:
-            log.exception("Error creating tables: ")
+
+    def get_alarm(self, alarm_uuid: str):
+        with db.atomic():
+            return ScalingAlarm.select().where(ScalingAlarm.alarm_uuid == alarm_uuid).get()