bilean/bilean/notification/endpoint.py

96 lines
3.9 KiB
Python

#
# 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 bilean.common import context
from bilean.common.i18n import _
from bilean.common.i18n import _LE
from bilean.common.i18n import _LI
from bilean.notification import action as notify_action
from bilean.notification import converter
from oslo_log import log as logging
import oslo_messaging
LOG = logging.getLogger(__name__)
KEYSTONE_EVENTS = ['identity.project.created',
'identity.project.deleted']
class EventsNotificationEndpoint(object):
def __init__(self):
self.resource_converter = converter.setup_resources()
self.cnxt = context.get_service_context(set_project_id=True)
super(EventsNotificationEndpoint, self).__init__()
def info(self, ctxt, publisher_id, event_type, payload, metadata):
"""Convert message to Billing Event.
:param ctxt: oslo_messaging context
:param publisher_id: publisher of the notification
:param event_type: type of notification
:param payload: notification payload
:param metadata: metadata about the notification
"""
notification = dict(event_type=event_type,
payload=payload,
metadata=metadata)
LOG.debug(_("Receive notification: %s") % notification)
if event_type in KEYSTONE_EVENTS:
return self.process_identity_notification(notification)
return self.process_resource_notification(notification)
def process_identity_notification(self, notification):
"""Convert notification to user."""
user_id = notification['payload'].get('resource_info')
if not user_id:
LOG.error(_LE("Cannot retrieve user_id from notification: %s"),
notification)
return oslo_messaging.NotificationResult.HANDLED
action = self._get_action(notification['event_type'])
if action:
act = notify_action.UserAction(self.cnxt, action, user_id)
LOG.info(_LI("Notify engine to %(action)s user: %(user)s") %
{'action': action, 'user': user_id})
act.execute()
return oslo_messaging.NotificationResult.HANDLED
def process_resource_notification(self, notification):
"""Convert notification to resources."""
resources = self.resource_converter.to_resources(notification)
if not resources:
LOG.info('Ignore notification because no matched resources '
'found from notification.')
return oslo_messaging.NotificationResult.HANDLED
action = self._get_action(notification['event_type'])
if action:
for resource in resources:
act = notify_action.ResourceAction(
self.cnxt, action, resource)
LOG.info(_LI("Notify engine to %(action)s resource: "
"%(resource)s") % {'action': action,
'resource': resource})
act.execute()
return oslo_messaging.NotificationResult.HANDLED
def _get_action(self, event_type):
available_actions = ['create', 'delete', 'update']
for action in available_actions:
if action in event_type:
return action
LOG.info(_LI("Can not get action info in event_type: %s") % event_type)
return None