Source code for octavia.common.rpc
# 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 octavia_lib.i18n import _
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
NOTIFICATION_TRANSPORT = None
NOTIFIER = None
[docs]
def init():
global TRANSPORT, NOTIFICATION_TRANSPORT, NOTIFIER
TRANSPORT = create_transport(get_transport_url())
NOTIFICATION_TRANSPORT = messaging.get_notification_transport(cfg.CONF)
NOTIFIER = messaging.Notifier(NOTIFICATION_TRANSPORT)
[docs]
def cleanup():
global TRANSPORT, NOTIFICATION_TRANSPORT, NOTIFIER
if TRANSPORT is not None:
TRANSPORT.cleanup()
if NOTIFICATION_TRANSPORT is not None:
NOTIFICATION_TRANSPORT.cleanup()
TRANSPORT = NOTIFICATION_TRANSPORT = NOTIFIER = None
[docs]
def get_transport_url(url_str=None):
return messaging.TransportURL.parse(cfg.CONF, url_str)
[docs]
def get_client(target, version_cap=None, serializer=None,
call_monitor_timeout=None):
assert TRANSPORT is not None, _("'TRANSPORT' must not be None")
return messaging.get_rpc_client(
TRANSPORT, target, version_cap=version_cap,
serializer=serializer,
call_monitor_timeout=call_monitor_timeout)
[docs]
def get_server(target, endpoints, executor='threading',
access_policy=dispatcher.DefaultRPCAccessPolicy,
serializer=None):
assert TRANSPORT is not None, _("'TRANSPORT' must not be None")
return messaging.get_rpc_server(TRANSPORT,
target,
endpoints,
executor=executor,
serializer=serializer,
access_policy=access_policy)
[docs]
def get_notifier(service=None, host=None, publisher_id=None):
assert NOTIFIER is not None, _("'NOTIFIER' must not be None")
return NOTIFIER.prepare()
[docs]
def create_transport(url):
return messaging.get_rpc_transport(cfg.CONF, url=url)