/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/zmq_driver/proxy/central/zmq_publisher_proxy.py is in python-oslo.messaging 5.35.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | # Copyright 2015-2016 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 import zmq_sender
from oslo_messaging._drivers.zmq_driver import zmq_async
from oslo_messaging._drivers.zmq_driver import zmq_socket
zmq = zmq_async.import_zmq()
class PublisherProxy(object):
"""PUB/SUB based request publisher
The publisher intended to be used for Fanout and Notify
multi-sending patterns.
It differs from direct publishers like DEALER or PUSH based
in a way it treats matchmaker. Here all publishers register
in the matchmaker. Subscribers (server-side) take the list
of publishers and connect to all of them but subscribe
only to a specific topic-filtering tag generated from the
Target object.
"""
def __init__(self, conf, matchmaker, sender=None):
super(PublisherProxy, self).__init__()
self.conf = conf
self.zmq_context = zmq.Context()
self.matchmaker = matchmaker
port = conf.zmq_proxy_opts.publisher_port
self.socket = zmq_socket.ZmqFixedPortSocket(
self.conf, self.zmq_context, zmq.PUB, conf.zmq_proxy_opts.host,
port) if port != 0 else \
zmq_socket.ZmqRandomPortSocket(
self.conf, self.zmq_context, zmq.PUB, conf.zmq_proxy_opts.host)
self.host = self.socket.connect_address
self.sender = sender or zmq_sender.CentralPublisherSender()
def send_request(self, multipart_message):
self.sender.send_message(self.socket, multipart_message)
def cleanup(self):
self.socket.close()
|