octavia/octavia/common/rpc.py

67 lines
2.0 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 oslo_config import cfg
from oslo_log import log as logging
import oslo_messaging as messaging
from oslo_messaging.rpc import dispatcher
LOG = logging.getLogger(__name__)
TRANSPORT = None
def init():
global TRANSPORT
TRANSPORT = create_transport(get_transport_url())
def cleanup():
global TRANSPORT
if TRANSPORT is not None:
TRANSPORT.cleanup()
TRANSPORT = None
def get_transport_url(url_str=None):
return messaging.TransportURL.parse(cfg.CONF, url_str)
def get_client(target, version_cap=None, serializer=None,
call_monitor_timeout=None):
if TRANSPORT is None:
init()
return messaging.RPCClient(TRANSPORT,
target,
version_cap=version_cap,
serializer=serializer,
call_monitor_timeout=call_monitor_timeout)
def get_server(target, endpoints, executor='threading',
access_policy=dispatcher.DefaultRPCAccessPolicy,
serializer=None):
if TRANSPORT is None:
init()
return messaging.get_rpc_server(TRANSPORT,
target,
endpoints,
executor=executor,
serializer=serializer,
access_policy=access_policy)
def create_transport(url):
return messaging.get_rpc_transport(cfg.CONF, url=url)