61 lines
1.7 KiB
Python
61 lines
1.7 KiB
Python
# Copyright 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 abc
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import logging
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import time
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import six
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from oslo_messaging._drivers.zmq_driver import zmq_async
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LOG = logging.getLogger(__name__)
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zmq = zmq_async.import_zmq()
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class UpdaterBase(object):
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def __init__(self, conf, matchmaker, update_method):
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self.conf = conf
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self.matchmaker = matchmaker
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self.update_method = update_method
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# make first update immediately
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self.update_method()
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self.executor = zmq_async.get_executor(method=self._update_loop)
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self.executor.execute()
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def stop(self):
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self.executor.stop()
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def _update_loop(self):
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self.update_method()
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time.sleep(self.conf.oslo_messaging_zmq.zmq_target_update)
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def cleanup(self):
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self.executor.stop()
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@six.add_metaclass(abc.ABCMeta)
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class ConnectionUpdater(UpdaterBase):
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def __init__(self, conf, matchmaker, socket):
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self.socket = socket
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super(ConnectionUpdater, self).__init__(
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conf, matchmaker, self._update_connection)
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@abc.abstractmethod
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def _update_connection(self):
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"""Update connection info"""
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