oslo.messaging/oslo_messaging/_drivers/zmq_driver/proxy/local/zmq_local_proxy.py

60 lines
2.3 KiB
Python

# Copyright 2016 Mirantis, 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.
from oslo_messaging._drivers.zmq_driver.proxy.central \
import zmq_publisher_proxy
from oslo_messaging._drivers.zmq_driver.proxy \
import zmq_base_proxy
from oslo_messaging._drivers.zmq_driver.proxy import zmq_sender
from oslo_messaging._drivers.zmq_driver.server.consumers \
import zmq_sub_consumer
from oslo_messaging._drivers.zmq_driver import zmq_async
from oslo_messaging._drivers.zmq_driver import zmq_socket
zmq = zmq_async.import_zmq()
class LocalPublisherProxy(zmq_base_proxy.ProxyBase):
PROXY_TYPE = "L-PUBLISHER"
def __init__(self, conf, context, matchmaker):
wrapper = zmq_sub_consumer.SubscriptionMatchmakerWrapper(conf,
matchmaker)
super(LocalPublisherProxy, self).__init__(conf, context, wrapper)
self.fe_sub = zmq_socket.ZmqSocket(conf, context, zmq.SUB, False)
self.fe_sub.setsockopt(zmq.SUBSCRIBE, b'')
self.connection_updater = zmq_sub_consumer.SubscriberConnectionUpdater(
conf, self.matchmaker, self.fe_sub)
self.poller.register(self.fe_sub, self.receive_message)
self.publisher = zmq_publisher_proxy.PublisherProxy(
conf, matchmaker, sender=zmq_sender.LocalPublisherSender())
def run(self):
message, socket = self.poller.poll()
if message is None:
return
self.publisher.send_request(message)
@staticmethod
def receive_message(socket):
return socket.recv_multipart()
def cleanup(self):
super(LocalPublisherProxy, self).cleanup()
self.fe_sub.close()
self.connection_updater.cleanup()
self.publisher.cleanup()