neutron/neutron/api/rpc/handlers/resources_rpc.py

72 lines
2.5 KiB
Python
Executable File

# Copyright (c) 2015 Mellanox Technologies, Ltd
# 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_log import helpers as log_helpers
from oslo_log import log as logging
import oslo_messaging
from neutron.api.rpc.callbacks import registry
from neutron.common import constants
from neutron.common import rpc as n_rpc
from neutron.common import topics
LOG = logging.getLogger(__name__)
class ResourcesServerRpcApi(object):
"""Agent-side RPC (stub) for agent-to-plugin interaction.
This class implements the client side of an rpc interface. The server side
can be found below: ResourcesServerRpcCallback. For more information on
changing rpc interfaces, see doc/source/devref/rpc_api.rst.
"""
def __init__(self):
target = oslo_messaging.Target(
topic=topics.PLUGIN, version='1.0',
namespace=constants.RPC_NAMESPACE_RESOURCES)
self.client = n_rpc.get_client(target)
@log_helpers.log_method_call
def get_info(self, context, resource_type, resource_id):
cctxt = self.client.prepare()
#TODO(Qos): add deserialize version object
return cctxt.call(context, 'get_info',
resource_type=resource_type, resource_id=resource_id)
class ResourcesServerRpcCallback(object):
"""Plugin-side RPC (implementation) for agent-to-plugin interaction.
This class implements the server side of an rpc interface. The client side
can be found above: ResourcesServerRpcApi. For more information on
changing rpc interfaces, see doc/source/devref/rpc_api.rst.
"""
# History
# 1.0 Initial version
target = oslo_messaging.Target(
version='1.0', namespace=constants.RPC_NAMESPACE_RESOURCES)
def get_info(self, context, resource_type, resource_id):
kwargs = {'context': context}
#TODO(Qos): add serialize version object
return registry.get_info(
resource_type,
resource_id,
**kwargs)