Versioned objects - Event

Prototype implementation of oslo.versionedobjects.
This patch adds Event object.

Implements: blueprint versioned-objects

Co-Authored-By: ShaoHe Feng <shaohe.feng@intel.com>
Co-Authored-By: Grzegorz Grasza <grzegorz.grasza@intel.com>

Change-Id: Ifdff1289aba4bf09130047f63d4e745d591fe16a

heat/engine/event.py

@@ -16,7 +16,7 @@ import six
 from heat.common import exception
 from heat.common.i18n import _
 from heat.common import identifier
-from heat.db import api as db_api
+from heat.objects import event as event_object
 
 
 class Event(object):
@@ -52,7 +52,7 @@ class Event(object):
         from heat.engine import stack as parser
 
         ev = (event if event is not None else
-              db_api.event_get(context, event_id))
+              event_object.Event.get_by_id(context, event_id))
         if ev is None:
             message = _('No event exists with id "%s"') % str(event_id)
             raise exception.NotFound(message)
@@ -84,7 +84,7 @@ class Event(object):
         if self.timestamp is not None:
             ev['created_at'] = self.timestamp
 
-        new_ev = db_api.event_create(self.context, ev)
+        new_ev = event_object.Event.create(self.context, ev)
         self.id = new_ev.id
         return self.id
 

heat/engine/service.py

@@ -51,6 +51,7 @@ from heat.engine import stack_lock
 from heat.engine import template as templatem
 from heat.engine import watchrule
 from heat.engine import worker
+from heat.objects import event as event_object
 from heat.objects import resource as resource_objects
 from heat.objects import snapshot as snapshot_object
 from heat.objects import stack as stack_object
@@ -1016,13 +1017,17 @@ class EngineService(service.Service):
         if stack_identity is not None:
             st = self._get_stack(cnxt, stack_identity, show_deleted=True)
 
-            events = db_api.event_get_all_by_stack(cnxt, st.id, limit=limit,
+            events = event_object.Event.get_all_by_stack(
+                cnxt,
+                st.id,
+                limit=limit,
                 marker=marker,
                 sort_keys=sort_keys,
                 sort_dir=sort_dir,
                 filters=filters)
         else:
-            events = db_api.event_get_all_by_tenant(cnxt, limit=limit,
+            events = event_object.Event.get_all_by_tenant(
+                cnxt, limit=limit,
                 marker=marker,
                 sort_keys=sort_keys,
                 sort_dir=sort_dir,

heat/objects/event.py

@@ -0,0 +1,80 @@
+# Copyright 2014 Intel Corp.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""
+Event object
+"""
+
+from oslo_versionedobjects import base
+from oslo_versionedobjects import fields
+
+from heat.db import api as db_api
+from heat.objects import fields as heat_fields
+
+
+class Event(base.VersionedObject, base.VersionedObjectDictCompat):
+    fields = {
+        'id': fields.IntegerField(nullable=False),
+        'stack_id': fields.StringField(nullable=False),
+        'uuid': fields.StringField(nullable=False),
+        'resource_action': fields.StringField(nullable=True),
+        'resource_status': fields.StringField(nullable=True),
+        'resource_name': fields.StringField(nullable=True),
+        'physical_resource_id': fields.StringField(nullable=True),
+        'resource_status_reason': fields.StringField(nullable=True),
+        'resource_type': fields.StringField(nullable=True),
+        'resource_properties': heat_fields.JsonField(nullable=True),
+        'created_at': fields.DateTimeField(read_only=True),
+        'updated_at': fields.DateTimeField(nullable=True),
+    }
+
+    @staticmethod
+    def _from_db_object(context, event, db_event):
+        for field in event.fields:
+            event[field] = db_event[field]
+        event._context = context
+        event.obj_reset_changes()
+        return event
+
+    @classmethod
+    def get_by_id(cls, context, event_id):
+        db_event = db_api.event_get(context, event_id)
+        return cls._from_db_object(context, cls(context), db_event)
+
+    @classmethod
+    def get_all(cls, context):
+        return [cls._from_db_object(context, cls(), db_event)
+                for db_event in db_api.event_get_all(context)]
+
+    @classmethod
+    def get_all_by_tenant(cls, context, **kwargs):
+        return [cls._from_db_object(context, cls(), db_event)
+                for db_event in db_api.event_get_all_by_tenant(context,
+                                                               **kwargs)]
+
+    @classmethod
+    def get_all_by_stack(cls, context, stack_id, **kwargs):
+        return [cls._from_db_object(context, cls(), db_event)
+                for db_event in db_api.event_get_all_by_stack(context,
+                                                              stack_id,
+                                                              **kwargs)]
+
+    @classmethod
+    def count_all_by_stack(cls, context, stack_id):
+        return db_api.event_count_all_by_stack(context, stack_id)
+
+    @classmethod
+    def create(cls, context, values):
+        return cls._from_db_object(context, cls(),
+                                   db_api.event_create(context, values))