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OpenStack Study: rpc.py**** CubicPower OpenStack Study ****
# Copyright 2013 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. """ RPC Controller """ from oslo.config import cfg from glance.common import rpc from glance.common import wsgi import glance.db import glance.openstack.common.log as logging LOG = logging.getLogger(__name__) CONF = cfg.CONF
**** CubicPower OpenStack Study **** class Controller(rpc.Controller):
**** CubicPower OpenStack Study **** def __init__(self, raise_exc=False): super(Controller, self).__init__(raise_exc) # NOTE(flaper87): Avoid using registry's db # driver for the registry service. It would # end up in an infinite loop. if CONF.data_api == "glance.db.registry.api": msg = _("Registry service can't use %s") % CONF.data_api raise RuntimeError(msg) # NOTE(flaper87): Register the # db_api as a resource to expose. db_api = glance.db.get_api() self.register(glance.db.unwrap(db_api)) def create_resource(): """Images resource factory method.""" deserializer = rpc.RPCJSONDeserializer() serializer = rpc.RPCJSONSerializer() return wsgi.Resource(Controller(), deserializer, serializer)
**** CubicPower OpenStack Study **** def create_resource(): """Images resource factory method.""" deserializer = rpc.RPCJSONDeserializer() serializer = rpc.RPCJSONSerializer() return wsgi.Resource(Controller(), deserializer, serializer)
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