OpenStack Networking (Neutron)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
neutron/neutron/agent/rpc.py

113 lines
4.1 KiB

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2012 OpenStack Foundation.
# 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.
import itertools
from neutron.common import topics
from neutron.openstack.common import log as logging
from neutron.openstack.common import rpc
from neutron.openstack.common.rpc import proxy
from neutron.openstack.common import timeutils
LOG = logging.getLogger(__name__)
def create_consumers(dispatcher, prefix, topic_details):
"""Create agent RPC consumers.
:param dispatcher: The dispatcher to process the incoming messages.
:param prefix: Common prefix for the plugin/agent message queues.
:param topic_details: A list of topics. Each topic has a name, an
operation, and an optional host param keying the
subscription to topic.host for plugin calls.
:returns: A common Connection.
"""
connection = rpc.create_connection(new=True)
for details in topic_details:
topic, operation, node_name = itertools.islice(
itertools.chain(details, [None]), 3)
topic_name = topics.get_topic_name(prefix, topic, operation)
connection.create_consumer(topic_name, dispatcher, fanout=True)
if node_name:
node_topic_name = '%s.%s' % (topic_name, node_name)
connection.create_consumer(node_topic_name,
dispatcher,
fanout=False)
connection.consume_in_thread()
return connection
class PluginReportStateAPI(proxy.RpcProxy):
BASE_RPC_API_VERSION = '1.0'
def __init__(self, topic):
super(PluginReportStateAPI, self).__init__(
topic=topic, default_version=self.BASE_RPC_API_VERSION)
def report_state(self, context, agent_state, use_call=False):
msg = self.make_msg('report_state',
agent_state={'agent_state':
agent_state},
time=timeutils.strtime())
if use_call:
return self.call(context, msg, topic=self.topic)
else:
return self.cast(context, msg, topic=self.topic)
class PluginApi(proxy.RpcProxy):
'''Agent side of the rpc API.
API version history:
1.0 - Initial version.
'''
BASE_RPC_API_VERSION = '1.1'
def __init__(self, topic):
super(PluginApi, self).__init__(
topic=topic, default_version=self.BASE_RPC_API_VERSION)
def get_device_details(self, context, device, agent_id):
return self.call(context,
self.make_msg('get_device_details', device=device,
agent_id=agent_id),
topic=self.topic)
def update_device_down(self, context, device, agent_id, host=None):
return self.call(context,
self.make_msg('update_device_down', device=device,
agent_id=agent_id, host=host),
topic=self.topic)
def update_device_up(self, context, device, agent_id, host=None):
return self.call(context,
self.make_msg('update_device_up', device=device,
agent_id=agent_id, host=host),
topic=self.topic)
def tunnel_sync(self, context, tunnel_ip, tunnel_type=None):
return self.call(context,
self.make_msg('tunnel_sync', tunnel_ip=tunnel_ip,
tunnel_type=tunnel_type),
topic=self.topic)