127 lines
4.4 KiB
Python
127 lines
4.4 KiB
Python
# Copyright 2015-2016 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import copy
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import logging
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from oslo_messaging._drivers import base
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from oslo_messaging._drivers.zmq_driver.server.consumers\
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import zmq_dealer_consumer
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from oslo_messaging._drivers.zmq_driver.server.consumers\
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import zmq_router_consumer
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from oslo_messaging._drivers.zmq_driver.server.consumers\
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import zmq_sub_consumer
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from oslo_messaging._drivers.zmq_driver import zmq_async
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from oslo_messaging._i18n import _LI
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LOG = logging.getLogger(__name__)
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zmq = zmq_async.import_zmq()
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class ZmqServer(base.PollStyleListener):
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def __init__(self, driver, conf, matchmaker, target, poller=None):
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super(ZmqServer, self).__init__()
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self.driver = driver
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self.conf = conf
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self.matchmaker = matchmaker
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self.target = target
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self.poller = poller or zmq_async.get_poller()
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LOG.info(_LI('[%(host)s] Run server %(target)s'),
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{'host': self.conf.oslo_messaging_zmq.rpc_zmq_host,
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'target': self.target})
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if conf.oslo_messaging_zmq.use_router_proxy:
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self.router_consumer = None
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dealer_consumer_cls = \
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zmq_dealer_consumer.DealerConsumerWithAcks \
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if conf.oslo_messaging_zmq.rpc_use_acks else \
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zmq_dealer_consumer.DealerConsumer
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self.dealer_consumer = dealer_consumer_cls(conf, self.poller, self)
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else:
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self.router_consumer = \
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zmq_router_consumer.RouterConsumer(conf, self.poller, self)
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self.dealer_consumer = None
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self.sub_consumer = \
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zmq_sub_consumer.SubConsumer(conf, self.poller, self) \
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if conf.oslo_messaging_zmq.use_pub_sub else None
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self.consumers = []
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if self.router_consumer is not None:
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self.consumers.append(self.router_consumer)
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if self.dealer_consumer is not None:
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self.consumers.append(self.dealer_consumer)
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if self.sub_consumer is not None:
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self.consumers.append(self.sub_consumer)
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@base.batch_poll_helper
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def poll(self, timeout=None):
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message, socket = self.poller.poll(
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timeout or self.conf.oslo_messaging_zmq.rpc_poll_timeout)
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return message
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def stop(self):
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self.poller.close()
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for consumer in self.consumers:
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consumer.stop()
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LOG.info(_LI('[%(host)s] Stop server %(target)s'),
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{'host': self.conf.oslo_messaging_zmq.rpc_zmq_host,
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'target': self.target})
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def cleanup(self):
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self.poller.close()
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for consumer in self.consumers:
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consumer.cleanup()
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LOG.info(_LI('[%(host)s] Destroy server %(target)s'),
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{'host': self.conf.oslo_messaging_zmq.rpc_zmq_host,
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'target': self.target})
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class ZmqNotificationServer(base.PollStyleListener):
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def __init__(self, driver, conf, matchmaker, targets_and_priorities):
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super(ZmqNotificationServer, self).__init__()
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self.driver = driver
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self.conf = conf
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self.matchmaker = matchmaker
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self.servers = []
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self.poller = zmq_async.get_poller()
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self._listen(targets_and_priorities)
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def _listen(self, targets_and_priorities):
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for target, priority in targets_and_priorities:
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t = copy.deepcopy(target)
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t.topic = target.topic + '.' + priority
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self.servers.append(ZmqServer(
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self.driver, self.conf, self.matchmaker, t, self.poller))
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@base.batch_poll_helper
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def poll(self, timeout=None):
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message, socket = self.poller.poll(
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timeout or self.conf.oslo_messaging_zmq.rpc_poll_timeout)
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return message
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def stop(self):
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for server in self.servers:
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server.stop()
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def cleanup(self):
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for server in self.servers:
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server.cleanup()
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