oslo.messaging/oslo_messaging/_drivers/zmq_driver/server/zmq_server.py

73 lines
2.3 KiB
Python

# Copyright 2015 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.
import copy
import logging
from oslo_messaging._drivers import base
from oslo_messaging._drivers.zmq_driver.server.consumers\
import zmq_router_consumer
from oslo_messaging._drivers.zmq_driver import zmq_async
LOG = logging.getLogger(__name__)
zmq = zmq_async.import_zmq()
class ZmqServer(base.Listener):
def __init__(self, driver, conf, matchmaker=None):
super(ZmqServer, self).__init__(driver)
self.matchmaker = matchmaker
self.poller = zmq_async.get_poller()
if conf.zmq_use_broker:
self.rpc_consumer = zmq_router_consumer.RouterConsumerBroker(
conf, self.poller, self)
else:
self.rpc_consumer = zmq_router_consumer.RouterConsumer(
conf, self.poller, self)
self.notify_consumer = self.rpc_consumer
self.consumers = [self.rpc_consumer]
@base.batch_poll_helper
def poll(self, timeout=None):
message, socket = self.poller.poll(
timeout or self.conf.rpc_poll_timeout)
return message
def stop(self):
consumer = self.rpc_consumer
LOG.info("Stop server %s:%d" % (consumer.address, consumer.port))
def cleanup(self):
self.poller.close()
for consumer in self.consumers:
consumer.cleanup()
def listen(self, target):
consumer = self.rpc_consumer
consumer.listen(target)
def listen_notification(self, targets_and_priorities):
consumer = self.notify_consumer
LOG.info("Listen for notifications on %s:%d"
% (consumer.address, consumer.port))
for target, priority in targets_and_priorities:
t = copy.deepcopy(target)
t.topic = target.topic + '.' + priority
consumer.listen(t)