<commit_before># Copyright 2013 OpenStack Foundation.
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from oslo_config import cfg
from oslo_log import log as logging
import stevedore

from neutron.common import exceptions as n_exc
from neutron.common import repos
from neutron.i18n import _LW
from neutron.plugins.common import constants

LOG = logging.getLogger(__name__)

SERVICE_PROVIDERS = 'neutron.service_providers'

serviceprovider_opts = [
    cfg.MultiStrOpt('service_provider', default=[],
                    help=_('Defines providers for advanced services '
                           'using the format: '
                           '<service_type>:<name>:<driver>[:default]'))
]

cfg.CONF.register_opts(serviceprovider_opts, 'service_providers')


#global scope function that should be used in service APIs
def normalize_provider_name(name):
    return name.lower()


def get_provider_driver_class(driver, namespace=SERVICE_PROVIDERS):
    """Return path to provider driver class

    In order to keep backward compatibility with configs < Kilo, we need to
    translate driver class paths after advanced services split. This is done by
    defining old class path as entry point in neutron package.
    """
    try:
        driver_manager = stevedore.driver.DriverManager(
            namespace, driver).driver
    except RuntimeError:
        return driver
    new_driver = "%s.%s" % (driver_manager.__module__,
                            driver_manager.__name__)
    LOG.warning(_LW(
        "The configured driver %(driver)s has been moved, automatically "<commit_msg>Don't fatal error during initialization for missing service providers<commit_after># Copyright 2013 OpenStack Foundation.
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from oslo_config import cfg
from oslo_log import log as logging
import stevedore

from neutron.common import exceptions as n_exc
from neutron.common import repos
from neutron.i18n import _LW
from neutron.plugins.common import constants

LOG = logging.getLogger(__name__)

SERVICE_PROVIDERS = 'neutron.service_providers'

serviceprovider_opts = [
    cfg.MultiStrOpt('service_provider', default=[],
                    help=_('Defines providers for advanced services '
                           'using the format: '
                           '<service_type>:<name>:<driver>[:default]'))
]

cfg.CONF.register_opts(serviceprovider_opts, 'service_providers')


#global scope function that should be used in service APIs
def normalize_provider_name(name):
    return name.lower()


def get_provider_driver_class(driver, namespace=SERVICE_PROVIDERS):
    """Return path to provider driver class

    In order to keep backward compatibility with configs < Kilo, we need to
    translate driver class paths after advanced services split. This is done by
    defining old class path as entry point in neutron package.
    """
    try:
        driver_manager = stevedore.driver.DriverManager(
            namespace, driver).driver
    except ImportError:
        return driver
    except RuntimeError:
        return driver
    new_driver = "%s.%s" % (driver_manager.__module__,
                            driver_manager.__name__)
    LOG.warning(_LW(
        "The configured driver %(driver)s has been moved, automatically "
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{'dir': 'git-commits-cleaned', 'id': '7047650', 'n_tokens_mistral': 1132, 'n_tokens_neox': 1104, 'n_words': 438}