deepakmourya
6b89fab7d7
With the added get_rpc_transport() function in oslo.messaging [1] and the recent version bump of oslo.messaging to 5.24.2, we can safely replace get_transport() with get_rpc_transport() which is much cleaner. [1] https://review.openstack.org/#/c/454194/ Change-Id: Ib7e204a40e88aecfbd9b024feefdc7aa45e943e2
116 lines
3.7 KiB
Python
116 lines
3.7 KiB
Python
# Copyright (c) 2013-2014 Rackspace, 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.
|
|
|
|
"""
|
|
Queue objects for Barbican
|
|
"""
|
|
import oslo_messaging as messaging
|
|
from oslo_messaging.notify import dispatcher as notify_dispatcher
|
|
from oslo_messaging.notify import listener
|
|
from oslo_messaging.rpc import dispatcher
|
|
|
|
from barbican.common import config
|
|
from barbican.common import exception
|
|
|
|
|
|
# Constant at one place if this needs to be changed later
|
|
KS_NOTIFICATIONS_GRP_NAME = config.KS_NOTIFICATIONS_GRP_NAME
|
|
|
|
CONF = config.CONF
|
|
|
|
TRANSPORT = None
|
|
IS_SERVER_SIDE = True
|
|
|
|
ALLOWED_EXMODS = [
|
|
exception.__name__,
|
|
]
|
|
|
|
|
|
def get_allowed_exmods():
|
|
return ALLOWED_EXMODS
|
|
|
|
|
|
def init(conf, is_server_side=True):
|
|
global TRANSPORT, IS_SERVER_SIDE
|
|
exmods = get_allowed_exmods()
|
|
IS_SERVER_SIDE = is_server_side
|
|
TRANSPORT = messaging.get_rpc_transport(conf, allowed_remote_exmods=exmods)
|
|
|
|
|
|
def is_server_side():
|
|
return IS_SERVER_SIDE
|
|
|
|
|
|
def cleanup():
|
|
global TRANSPORT
|
|
TRANSPORT.cleanup()
|
|
TRANSPORT = None
|
|
|
|
|
|
def get_target():
|
|
return messaging.Target(topic=CONF.queue.topic,
|
|
namespace=CONF.queue.namespace,
|
|
version=CONF.queue.version,
|
|
server=CONF.queue.server_name)
|
|
|
|
|
|
def get_client(target=None, version_cap=None, serializer=None):
|
|
if not CONF.queue.enable:
|
|
return None
|
|
|
|
queue_target = target or get_target()
|
|
return messaging.RPCClient(TRANSPORT,
|
|
target=queue_target,
|
|
version_cap=version_cap,
|
|
serializer=serializer)
|
|
|
|
|
|
def get_server(target, endpoints, serializer=None):
|
|
access_policy = dispatcher.DefaultRPCAccessPolicy
|
|
return messaging.get_rpc_server(TRANSPORT,
|
|
target,
|
|
endpoints,
|
|
executor='eventlet',
|
|
serializer=serializer,
|
|
access_policy=access_policy)
|
|
|
|
|
|
def get_notification_target():
|
|
conf_opts = getattr(CONF, KS_NOTIFICATIONS_GRP_NAME)
|
|
return messaging.Target(exchange=conf_opts.control_exchange,
|
|
topic=conf_opts.topic,
|
|
version=conf_opts.version,
|
|
fanout=True)
|
|
|
|
|
|
def get_notification_server(targets, endpoints, serializer=None):
|
|
"""Retrieve notification server
|
|
|
|
This Notification server uses same transport configuration as used by
|
|
other barbican functionality like async order processing.
|
|
|
|
Assumption is that messaging infrastructure is going to be shared (same)
|
|
among different barbican features.
|
|
"""
|
|
allow_requeue = getattr(getattr(CONF, KS_NOTIFICATIONS_GRP_NAME),
|
|
'allow_requeue')
|
|
TRANSPORT._require_driver_features(requeue=allow_requeue)
|
|
dispatcher = notify_dispatcher.NotificationDispatcher(endpoints,
|
|
serializer)
|
|
# we don't want blocking executor so use eventlet as executor choice
|
|
return listener.NotificationServer(TRANSPORT, targets, dispatcher,
|
|
executor='eventlet',
|
|
allow_requeue=allow_requeue)
|