cinder/cinder/rpc.py
Sean McGinnis b3297f3984 Cleanup orphaned code from cinder root directory
There were several methods in the root directory source files
that were no longer being used anywhere. While some of these
have potential for being useful, they are not in use and should
not be sitting around the codebase waiting for someone to need them.

This patch removes unused methods from utils as well as their
associated unit tests.

Change-Id: Iee5bac44b41a2696ab972a2fbfe0281ec423b393
2015-10-01 15:19:15 -05:00

163 lines
4.7 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
from osprofiler import profiler
import cinder.context
import cinder.exception
CONF = cfg.CONF
TRANSPORT = None
NOTIFIER = None
ALLOWED_EXMODS = [
cinder.exception.__name__,
]
EXTRA_EXMODS = []
# NOTE(flaper87): The cinder.openstack.common.rpc entries are
# for backwards compat with Havana rpc_backend configuration
# values. The cinder.rpc entries are for compat with Folsom values.
TRANSPORT_ALIASES = {
'cinder.openstack.common.rpc.impl_kombu': 'rabbit',
'cinder.openstack.common.rpc.impl_qpid': 'qpid',
'cinder.openstack.common.rpc.impl_zmq': 'zmq',
'cinder.rpc.impl_kombu': 'rabbit',
'cinder.rpc.impl_qpid': 'qpid',
'cinder.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):
_context = context.to_dict()
prof = profiler.get()
if prof:
trace_info = {
"hmac_key": prof.hmac_key,
"base_id": prof.get_base_id(),
"parent_id": prof.get_id()
}
_context.update({"trace_info": trace_info})
return _context
def deserialize_context(self, context):
trace_info = context.pop("trace_info", None)
if trace_info:
profiler.init(**trace_info)
return cinder.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(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)