Adds vdu, ns, threshold and operation info to alarm notification

[osm/MON.git] / osm_mon / core / database.py

diff --git a/osm_mon/core/database.py b/osm_mon/core/database.py
index 2191106..e763a5b 100644 (file)
--- a/osm_mon/core/database.py
+++ b/osm_mon/core/database.py
@@ -25,14 +25,15 @@
 import logging
 
 from peewee import *
-from playhouse.sqlite_ext import SqliteExtDatabase
+from playhouse.db_url import connect
 
-from osm_mon.plugins.OpenStack.settings import Config
+from osm_mon.core.settings import Config
 
 log = logging.getLogger(__name__)
 cfg = Config.instance()
+cfg.read_environ()
 
-db = SqliteExtDatabase('mon.db')
+db = connect(cfg.DATABASE)
 
 
 class BaseModel(Model):
@@ -41,27 +42,76 @@ class BaseModel(Model):
 
 
 class VimCredentials(BaseModel):
-    uuid = CharField()
+    uuid = CharField(unique=True)
     name = CharField()
     type = CharField()
     url = CharField()
     user = CharField()
     password = CharField()
     tenant_name = CharField()
-    config = TextField()
+    config = TextField(default='{}')
+
+
+class Alarm(BaseModel):
+    alarm_id = CharField()
+    threshold = FloatField()
+    operation = CharField()
+    metric_name = CharField()
+    vdu_name = CharField()
+    vnf_member_index = CharField()
+    ns_id = CharField()
+    credentials = ForeignKeyField(VimCredentials, backref='alarms')
 
 
 class DatabaseManager:
     def create_tables(self):
         try:
             db.connect()
-            db.create_tables([VimCredentials])
+            db.create_tables([VimCredentials, Alarm])
             db.close()
         except Exception as e:
             log.exception("Error creating tables: ")
 
     def get_credentials(self, vim_uuid):
-        return VimCredentials.get(VimCredentials.uuid == vim_uuid)
+        return VimCredentials.get_or_none(VimCredentials.uuid == vim_uuid)
 
     def save_credentials(self, vim_credentials):
+        """Saves vim credentials. If a record with same uuid exists, overwrite it."""
+        exists = VimCredentials.get_or_none(VimCredentials.uuid == vim_credentials.uuid)
+        if exists:
+            vim_credentials.id = exists.id
         vim_credentials.save()
+
+    def get_credentials_for_alarm_id(self, alarm_id, vim_type):
+        alarm = Alarm.select() \
+            .where(Alarm.alarm_id == alarm_id) \
+            .join(VimCredentials) \
+            .where(VimCredentials.type == vim_type).get()
+        return alarm.credentials
+
+    def get_alarm(self, alarm_id, vim_type):
+        alarm = Alarm.select() \
+            .where(Alarm.alarm_id == alarm_id) \
+            .join(VimCredentials) \
+            .where(VimCredentials.type == vim_type).get()
+        return alarm
+
+    def save_alarm(self, alarm_id, vim_uuid, threshold=None, operation=None, metric_name=None, vdu_name=None,
+                   vnf_member_index=None, ns_id=None):
+        """Saves alarm. If a record with same id and vim_uuid exists, overwrite it."""
+        alarm = Alarm()
+        alarm.alarm_id = alarm_id
+        creds = VimCredentials.get(VimCredentials.uuid == vim_uuid)
+        alarm.credentials = creds
+        alarm.threshold = threshold
+        alarm.operation = operation
+        alarm.metric_name = metric_name
+        alarm.vdu_name = vdu_name
+        alarm.vnf_member_index = vnf_member_index
+        alarm.ns_id = ns_id
+        exists = Alarm.select(Alarm.alarm_id == alarm.alarm_id) \
+            .join(VimCredentials) \
+            .where(VimCredentials.uuid == vim_uuid)
+        if len(exists):
+            alarm.id = exists[0].id
+        alarm.save()