1386ce690f
Those are remnants from the oslo-incubator times. Also, oslo.messaging deprecated [1] transport aliases since 5.2.0+ that is the minimal version supported for stable/newton. The patch that bumped the minimal version for Watcher landed 3 months+ ago, so we can proceed ripping those aliases from the code base. [1] I314cefa5fb1803fa7e21e3e34300e5ced31bba89 Change-Id: Ie3008cc54b0eb3d1d02f55f388bd1c3b109d126d Closes-Bug: #1424728
143 lines
4.0 KiB
Python
143 lines
4.0 KiB
Python
# Copyright 2014 Red Hat, Inc.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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
|
|
import oslo_messaging as messaging
|
|
|
|
from watcher._i18n import _LE
|
|
from watcher.common import context as watcher_context
|
|
from watcher.common import exception
|
|
|
|
__all__ = [
|
|
'init',
|
|
'cleanup',
|
|
'set_defaults',
|
|
'add_extra_exmods',
|
|
'clear_extra_exmods',
|
|
'get_allowed_exmods',
|
|
'RequestContextSerializer',
|
|
'get_client',
|
|
'get_server',
|
|
'get_notifier',
|
|
]
|
|
|
|
CONF = cfg.CONF
|
|
LOG = log.getLogger(__name__)
|
|
TRANSPORT = None
|
|
NOTIFICATION_TRANSPORT = None
|
|
NOTIFIER = None
|
|
|
|
ALLOWED_EXMODS = [
|
|
exception.__name__,
|
|
]
|
|
EXTRA_EXMODS = []
|
|
|
|
|
|
JsonPayloadSerializer = messaging.JsonPayloadSerializer
|
|
|
|
|
|
def init(conf):
|
|
global TRANSPORT, NOTIFICATION_TRANSPORT, NOTIFIER
|
|
exmods = get_allowed_exmods()
|
|
TRANSPORT = messaging.get_transport(conf,
|
|
allowed_remote_exmods=exmods)
|
|
NOTIFICATION_TRANSPORT = messaging.get_notification_transport(
|
|
conf,
|
|
allowed_remote_exmods=exmods)
|
|
|
|
serializer = RequestContextSerializer(JsonPayloadSerializer())
|
|
if not conf.notification_level:
|
|
NOTIFIER = messaging.Notifier(
|
|
NOTIFICATION_TRANSPORT, serializer=serializer, driver='noop')
|
|
else:
|
|
NOTIFIER = messaging.Notifier(NOTIFICATION_TRANSPORT,
|
|
serializer=serializer)
|
|
|
|
|
|
def initialized():
|
|
return None not in [TRANSPORT, NOTIFIER]
|
|
|
|
|
|
def cleanup():
|
|
global TRANSPORT, NOTIFICATION_TRANSPORT, NOTIFIER
|
|
if NOTIFIER is None:
|
|
LOG.exception(_LE("RPC cleanup: NOTIFIER is None"))
|
|
TRANSPORT.cleanup()
|
|
NOTIFICATION_TRANSPORT.cleanup()
|
|
TRANSPORT = NOTIFICATION_TRANSPORT = NOTIFIER = None
|
|
|
|
|
|
def set_defaults(control_exchange):
|
|
messaging.set_transport_defaults(control_exchange)
|
|
|
|
|
|
def add_extra_exmods(*args):
|
|
EXTRA_EXMODS.extend(args)
|
|
|
|
|
|
def clear_extra_exmods():
|
|
del EXTRA_EXMODS[:]
|
|
|
|
|
|
def get_allowed_exmods():
|
|
return ALLOWED_EXMODS + EXTRA_EXMODS
|
|
|
|
|
|
class RequestContextSerializer(messaging.Serializer):
|
|
|
|
def __init__(self, base):
|
|
self._base = base
|
|
|
|
def serialize_entity(self, context, entity):
|
|
if not self._base:
|
|
return entity
|
|
return self._base.serialize_entity(context, entity)
|
|
|
|
def deserialize_entity(self, context, entity):
|
|
if not self._base:
|
|
return entity
|
|
return self._base.deserialize_entity(context, entity)
|
|
|
|
def serialize_context(self, context):
|
|
return context.to_dict()
|
|
|
|
def deserialize_context(self, context):
|
|
return watcher_context.RequestContext.from_dict(context)
|
|
|
|
|
|
def get_client(target, version_cap=None, serializer=None):
|
|
assert TRANSPORT is not None
|
|
serializer = RequestContextSerializer(serializer)
|
|
return messaging.RPCClient(TRANSPORT,
|
|
target,
|
|
version_cap=version_cap,
|
|
serializer=serializer)
|
|
|
|
|
|
def get_server(target, endpoints, serializer=None):
|
|
assert TRANSPORT is not None
|
|
serializer = RequestContextSerializer(serializer)
|
|
return messaging.get_rpc_server(TRANSPORT,
|
|
target,
|
|
endpoints,
|
|
executor='eventlet',
|
|
serializer=serializer)
|
|
|
|
|
|
def get_notifier(publisher_id):
|
|
assert NOTIFIER is not None
|
|
return NOTIFIER.prepare(publisher_id=publisher_id)
|