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# 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.
import os
import sys
try:
import oslo_messaging
except ImportError:
oslo_messaging = None
class _LogNotifier(object):
def __init__(self, log):
self._log = log
def notify(self, context, event_type, payload):
self._log.info('Event type: %(event_type)s, Context: %(context)s, '
'Payload: %(payload)s', {'context': context,
'event_type': event_type,
'payload': payload})
class _MessagingNotifier(object):
def __init__(self, notifier):
self._notifier = notifier
def notify(self, context, event_type, payload):
self._notifier.info(context, event_type, payload)
def create_notifier(conf, log):
if oslo_messaging and conf.get('use_oslo_messaging'):
transport = oslo_messaging.get_notification_transport(
conf.oslo_conf_obj,
url=conf.get('transport_url'))
notifier = oslo_messaging.Notifier(
transport,
os.path.basename(sys.argv[0]),
driver=conf.get('driver'),
topics=conf.get('topics'))
return _MessagingNotifier(notifier)
else:
return _LogNotifier(log)
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