#    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 neutron_lib.api.definitions import uplink_status_propagation as usp
from neutron_lib.plugins.ml2 import api
from oslo_log import log as logging

from neutron.db import uplink_status_propagation_db as usp_db


LOG = logging.getLogger(__name__)


class UplinkStatusPropagationExtensionDriver(
        api.ExtensionDriver, usp_db.UplinkStatusPropagationMixin):

    _supported_extension_alias = 'uplink-status-propagation'

    def initialize(self):
        LOG.info("UplinkStatusPropagationExtensionDriver initialization "
                 "complete")

    @property
    def extension_alias(self):
        return self._supported_extension_alias

    def process_create_port(self, context, data, result):
        # Create the port extension attributes.
        if usp.PROPAGATE_UPLINK_STATUS in data:
            self._process_create_port(context, data, result)

    def extend_port_dict(self, session, db_data, result):
        self._extend_port_dict(result, db_data)