trove/trove/common/serializable_notification.py
Morgan Jones 5c29f40d5f Implement DBaaS Ceilometer Notifications
Defines and implements create|end|error notifications for
all state-changing Trove API calls.  Adds a notification to
the TroveContext to transfer the notification to the guest
and conductor so that errors on asynchronous commands can
be forwarded to the Conductor to be transferred to the
control plane bus.

Also did some cleanup on the existing notifications to bring
them all under a common framework in trove/common/notifications.py.
The trove.instance.exists notification was not integrated into
the new framework due to its close-coupling with the Nova
notification code.

Reworked the cluster action mechanism to move routing
functionality from the strategy to the Cluster base
class.  This was done to support tying notifications
to cluster specific actions.

Implements Blueprint: ceilometer-integration

Change-Id: I9c57d24f80d8d3116fc0cc8948094087a0495135
2016-02-27 00:16:28 +00:00

32 lines
1.2 KiB
Python

# Copyright 2015 Tesora Inc.
#
# 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.
from trove.common.utils import import_class
class SerializableNotification(object):
@staticmethod
def serialize(context, notification):
serialized = notification.serialize(context)
serialized['notification_classname'] = (
notification.__module__ + "." + type(notification).__name__)
return serialized
@staticmethod
def deserialize(context, serialized):
classname = serialized.pop('notification_classname')
notification_class = import_class(classname)
return notification_class(context, **serialized)