bb69046db5
The Oslo libraries have moved all of their code out of the 'oslo' namespace package into per-library packages. The namespace package was retained during kilo for backwards compatibility, but will be removed by the liberty-2 milestone. This change removes the use of the namespace package, replacing it with the new package names. The patches in the libraries will be put on hold until application patches have landed, or L2, whichever comes first. At that point, new versions of the libraries without namespace packages will be released as a major version update. Please merge this patch, or an equivalent, before L2 to avoid problems with those library releases. Blueprint: remove-namespace-packages https://blueprints.launchpad.net/oslo-incubator/+spec/remove-namespace-packages Change-Id: I75e6e15d50ef9830d0581efd4cbcceb3e626f7b7
153 lines
4.3 KiB
Python
153 lines
4.3 KiB
Python
# Copyright 2013 Red Hat, 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.
|
|
|
|
__all__ = [
|
|
'init',
|
|
'cleanup',
|
|
'set_defaults',
|
|
'add_extra_exmods',
|
|
'clear_extra_exmods',
|
|
'get_allowed_exmods',
|
|
'RequestContextSerializer',
|
|
'get_client',
|
|
'get_server',
|
|
'get_notifier',
|
|
'TRANSPORT_ALIASES',
|
|
]
|
|
|
|
from oslo_config import cfg
|
|
import oslo_messaging as messaging
|
|
from oslo_serialization import jsonutils
|
|
|
|
import manila.context
|
|
import manila.exception
|
|
|
|
CONF = cfg.CONF
|
|
TRANSPORT = None
|
|
NOTIFIER = None
|
|
|
|
ALLOWED_EXMODS = [
|
|
manila.exception.__name__,
|
|
]
|
|
EXTRA_EXMODS = []
|
|
|
|
# NOTE(flaper87): The manila.openstack.common.rpc entries are
|
|
# for backwards compat with Havana rpc_backend configuration
|
|
# values. The manila.rpc entries are for compat with Folsom values.
|
|
TRANSPORT_ALIASES = {
|
|
'manila.openstack.common.rpc.impl_kombu': 'rabbit',
|
|
'manila.openstack.common.rpc.impl_qpid': 'qpid',
|
|
'manila.openstack.common.rpc.impl_zmq': 'zmq',
|
|
'manila.rpc.impl_kombu': 'rabbit',
|
|
'manila.rpc.impl_qpid': 'qpid',
|
|
'manila.rpc.impl_zmq': 'zmq',
|
|
}
|
|
|
|
|
|
def init(conf):
|
|
global TRANSPORT, NOTIFIER
|
|
exmods = get_allowed_exmods()
|
|
TRANSPORT = messaging.get_transport(conf,
|
|
allowed_remote_exmods=exmods,
|
|
aliases=TRANSPORT_ALIASES)
|
|
|
|
serializer = RequestContextSerializer(JsonPayloadSerializer())
|
|
NOTIFIER = messaging.Notifier(TRANSPORT, serializer=serializer)
|
|
|
|
|
|
def initialized():
|
|
return None not in [TRANSPORT, NOTIFIER]
|
|
|
|
|
|
def cleanup():
|
|
global TRANSPORT, NOTIFIER
|
|
assert TRANSPORT is not None
|
|
assert NOTIFIER is not None
|
|
TRANSPORT.cleanup()
|
|
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 JsonPayloadSerializer(messaging.NoOpSerializer):
|
|
@staticmethod
|
|
def serialize_entity(context, entity):
|
|
return jsonutils.to_primitive(entity, convert_instances=True)
|
|
|
|
|
|
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 manila.context.RequestContext.from_dict(context)
|
|
|
|
|
|
def get_transport_url(url_str=None):
|
|
return messaging.TransportURL.parse(CONF, url_str, TRANSPORT_ALIASES)
|
|
|
|
|
|
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(service=None, host=None, publisher_id=None):
|
|
assert NOTIFIER is not None
|
|
if not publisher_id:
|
|
publisher_id = "%s.%s" % (service, host or CONF.host)
|
|
return NOTIFIER.prepare(publisher_id=publisher_id)
|