| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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 __future__ import absolute_import |
| from __future__ import division |
| from __future__ import print_function |
| |
| import optparse |
| import socket |
| import sys |
| import threading |
| |
| import cproton |
| |
| import proton.handlers |
| import proton.reactor |
| import proton.utils |
| |
| |
| class Broker(proton.handlers.MessagingHandler): |
| def __init__(self, acceptor_url): |
| # type: (str) -> None |
| super(Broker, self).__init__() |
| self.acceptor_url = acceptor_url |
| |
| self.acceptor = None |
| self._acceptor_opened_event = threading.Event() |
| |
| def get_acceptor_sockname(self): |
| # type: () -> (str, int) |
| self._acceptor_opened_event.wait() |
| if hasattr(self.acceptor, '_selectable'): # proton 0.30.0+ |
| sockname = self.acceptor._selectable._delegate.getsockname() |
| else: # works in proton 0.27.0 |
| selectable = cproton.pn_cast_pn_selectable(self.acceptor._impl) |
| fd = cproton.pn_selectable_get_fd(selectable) |
| s = socket.fromfd(fd, socket.AF_INET, socket.SOCK_STREAM) |
| sockname = s.getsockname() |
| return sockname[:2] |
| |
| def on_start(self, event): |
| self.acceptor = event.container.listen(self.acceptor_url) |
| self._acceptor_opened_event.set() |
| |
| def on_link_opening(self, event): |
| if event.link.is_sender: |
| assert not event.link.remote_source.dynamic, "This cannot happen" |
| event.link.source.address = event.link.remote_source.address |
| elif event.link.remote_target.address: |
| event.link.target.address = event.link.remote_target.address |
| |
| |
| def main(): |
| parser = optparse.OptionParser() |
| parser.add_option("-b", dest="hostport", default="localhost:0", type="string", |
| help="port number to use") |
| options, args = parser.parse_args() |
| |
| broker = Broker(options.hostport) |
| container = proton.reactor.Container(broker) |
| threading.Thread(target=container.run).start() |
| print("{0}:{1}".format(*broker.get_acceptor_sockname())) |
| sys.stdout.flush() |
| |
| |
| if __name__ == '__main__': |
| main() |