60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
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# 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 logging
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from oslo_utils import importutils
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from oslo_messaging._i18n import _LE
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LOG = logging.getLogger(__name__)
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green_zmq = importutils.try_import('eventlet.green.zmq')
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def import_zmq():
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imported_zmq = green_zmq or importutils.try_import('zmq')
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if imported_zmq is None:
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errmsg = _LE("ZeroMQ not found!")
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LOG.error(errmsg)
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raise ImportError(errmsg)
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return imported_zmq
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def get_poller():
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if green_zmq:
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from oslo_messaging._drivers.zmq_driver.poller import green_poller
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return green_poller.GreenPoller()
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else:
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from oslo_messaging._drivers.zmq_driver.poller import threading_poller
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return threading_poller.ThreadingPoller()
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def get_reply_poller():
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if green_zmq:
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from oslo_messaging._drivers.zmq_driver.poller import green_poller
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return green_poller.HoldReplyPoller()
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else:
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from oslo_messaging._drivers.zmq_driver.poller import threading_poller
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return threading_poller.ThreadingPoller()
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def get_executor(method):
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if green_zmq is not None:
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from oslo_messaging._drivers.zmq_driver.poller import green_poller
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return green_poller.GreenExecutor(method)
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else:
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from oslo_messaging._drivers.zmq_driver.poller import threading_poller
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return threading_poller.ThreadingExecutor()
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