45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
# Copyright 2014 OpenStack Foundation.
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# All Rights Reserved.
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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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from neutron.services import provider_configuration as provconf
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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_utils import importutils
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from neutron_fwaas._i18n import _
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LOG = logging.getLogger(__name__)
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FIREWALL_DRIVERS = 'firewall_drivers'
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class FirewallService(object):
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"""Firewall Service observer."""
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def load_device_drivers(self):
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"""Loads a single device driver for FWaaS."""
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device_driver = provconf.get_provider_driver_class(
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cfg.CONF.fwaas.driver, FIREWALL_DRIVERS)
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try:
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driver = importutils.import_object(device_driver)
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LOG.debug('Loaded FWaaS device driver: %s', device_driver)
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return driver
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except ImportError:
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msg = _('Error importing FWaaS device driver: %s')
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raise ImportError(msg % device_driver)
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except ValueError:
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msg = _('Configuration error - no FWaaS device_driver specified')
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raise ValueError(msg)
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