/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/zmq_driver/server/consumers/zmq_router_consumer.py is in python-oslo.messaging 4.6.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# 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 logging
from oslo_messaging._drivers import base
from oslo_messaging._drivers.zmq_driver.server.consumers\
import zmq_consumer_base
from oslo_messaging._drivers.zmq_driver.server import zmq_incoming_message
from oslo_messaging._drivers.zmq_driver import zmq_address
from oslo_messaging._drivers.zmq_driver import zmq_async
from oslo_messaging._drivers.zmq_driver import zmq_names
from oslo_messaging._i18n import _LE, _LI
LOG = logging.getLogger(__name__)
zmq = zmq_async.import_zmq()
class RouterIncomingMessage(base.RpcIncomingMessage):
def __init__(self, context, message, socket, reply_id, msg_id,
poller):
super(RouterIncomingMessage, self).__init__(context, message)
self.socket = socket
self.reply_id = reply_id
self.msg_id = msg_id
self.message = message
poller.resume_polling(socket)
def reply(self, reply=None, failure=None, log_failure=True):
"""Reply is not needed for non-call messages"""
def acknowledge(self):
LOG.debug("Not sending acknowledge for %s", self.msg_id)
def requeue(self):
"""Requeue is not supported"""
class RouterConsumer(zmq_consumer_base.SingleSocketConsumer):
def __init__(self, conf, poller, server):
super(RouterConsumer, self).__init__(conf, poller, server, zmq.ROUTER)
self.matchmaker = server.matchmaker
self.host = zmq_address.combine_address(self.conf.rpc_zmq_host,
self.port)
self.targets = zmq_consumer_base.TargetsManager(
conf, self.matchmaker, self.host, zmq.ROUTER)
LOG.info(_LI("[%s] Run ROUTER consumer"), self.host)
def listen(self, target):
LOG.info(_LI("[%(host)s] Listen to target %(target)s"),
{'host': self.host, 'target': target})
self.targets.listen(target)
def cleanup(self):
super(RouterConsumer, self).cleanup()
self.targets.cleanup()
def _receive_request(self, socket):
reply_id = socket.recv()
empty = socket.recv()
assert empty == b'', 'Bad format: empty delimiter expected'
request = socket.recv_pyobj()
return request, reply_id
def receive_message(self, socket):
try:
request, reply_id = self._receive_request(socket)
LOG.debug("[%(host)s] Received %(type)s, %(id)s, %(target)s",
{"host": self.host,
"type": request.msg_type,
"id": request.message_id,
"target": request.target})
if request.msg_type == zmq_names.CALL_TYPE:
return zmq_incoming_message.ZmqIncomingRequest(
socket, reply_id, request, self.poller)
elif request.msg_type in zmq_names.NON_BLOCKING_TYPES:
return RouterIncomingMessage(
request.context, request.message, socket, reply_id,
request.message_id, self.poller)
else:
LOG.error(_LE("Unknown message type: %s"), request.msg_type)
except zmq.ZMQError as e:
LOG.error(_LE("Receiving message failed: %s"), str(e))
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