54 lines
1.5 KiB
Python
54 lines
1.5 KiB
Python
# Copyright 2015 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 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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@six.add_metaclass(abc.ABCMeta)
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class BaseProxy(object):
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"""Base TCP-proxy.
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TCP-proxy redirects messages received by TCP from clients to servers
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over IPC. Consists of TCP-frontend and IPC-backend objects. Runs
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in async executor.
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"""
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def __init__(self, conf, context):
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super(BaseProxy, self).__init__()
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self.conf = conf
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self.context = context
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self.executor = zmq_async.get_executor(self.run,
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zmq_concurrency='native')
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@abc.abstractmethod
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def run(self):
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"""Main execution point of the proxy"""
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def start(self):
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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 wait(self):
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self.executor.wait()
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