/usr/lib/python2.7/dist-packages/aodh/messaging.py is in python-aodh 2.0.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright 2013-2015 eNovance <licensing@enovance.com>
#
# 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 oslo_messaging
from oslo_messaging import serializer as oslo_serializer
DEFAULT_URL = "__default__"
TRANSPORTS = {}
_SERIALIZER = oslo_serializer.JsonPayloadSerializer()
def setup():
oslo_messaging.set_transport_defaults('aodh')
def get_transport(conf, url=None, optional=False, cache=True):
"""Initialise the oslo_messaging layer."""
global TRANSPORTS, DEFAULT_URL
cache_key = url or DEFAULT_URL
transport = TRANSPORTS.get(cache_key)
if not transport or not cache:
try:
transport = oslo_messaging.get_transport(conf, url)
except oslo_messaging.InvalidTransportURL as e:
if not optional or e.url:
# NOTE(sileht): oslo_messaging is configured but unloadable
# so reraise the exception
raise
return None
else:
if cache:
TRANSPORTS[cache_key] = transport
return transport
def get_rpc_server(conf, transport, topic, endpoint):
"""Return a configured oslo_messaging rpc server."""
target = oslo_messaging.Target(server=conf.host, topic=topic)
return oslo_messaging.get_rpc_server(transport, target,
[endpoint], executor='threading',
serializer=_SERIALIZER)
def get_rpc_client(transport, retry=None, **kwargs):
"""Return a configured oslo_messaging RPCClient."""
target = oslo_messaging.Target(**kwargs)
return oslo_messaging.RPCClient(transport, target,
serializer=_SERIALIZER,
retry=retry)
def get_notification_listener(transport, targets, endpoints,
allow_requeue=False):
"""Return a configured oslo_messaging notification listener."""
return oslo_messaging.get_notification_listener(
transport, targets, endpoints, executor='threading',
allow_requeue=allow_requeue)
def get_notifier(transport, publisher_id):
"""Return a configured oslo_messaging notifier."""
notifier = oslo_messaging.Notifier(transport, serializer=_SERIALIZER)
return notifier.prepare(publisher_id=publisher_id)
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