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#
# 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()
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