vmware-nsx/vmware_nsx/db/maclearning.py
Boden R ebec296b85 use neutron-lib for resource_extend
The neutron code is already shimmed to use neutron-lib for the
neutron.db._resource_extend module [1].

This patch switches the code over to use neutron-lib for resource_extend
rather than neutron.

[1] https://review.openstack.org/#/c/624179/

Change-Id: I594dab9e0d207d2565eb70093163b9d8a90602e1
2018-12-23 09:01:12 +00:00

78 lines
2.9 KiB
Python

# Copyright 2013 VMware, Inc. 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 sqlalchemy.orm import exc
from neutron_lib.api.definitions import port as port_def
from neutron_lib.db import api as db_api
from neutron_lib.db import model_query
from neutron_lib.db import resource_extend
from neutron_lib.db import utils as db_utils
from oslo_log import log as logging
from vmware_nsx.db import nsx_models
from vmware_nsx.extensions import maclearning as mac
LOG = logging.getLogger(__name__)
@resource_extend.has_resource_extenders
class MacLearningDbMixin(object):
"""Mixin class for mac learning."""
def _make_mac_learning_state_dict(self, port, fields=None):
res = {'port_id': port['port_id'],
mac.MAC_LEARNING: port[mac.MAC_LEARNING]}
return db_utils.resource_fields(res, fields)
@staticmethod
@resource_extend.extends([port_def.COLLECTION_NAME])
def _extend_port_mac_learning_state(port_res, port_db):
state = port_db.mac_learning_state
if state:
port_res[mac.MAC_LEARNING] = state.mac_learning_enabled
def _update_mac_learning_state(self, context, port_id, enabled):
try:
query = model_query.query_with_hooks(
context, nsx_models.MacLearningState)
state = query.filter(
nsx_models.MacLearningState.port_id == port_id).one()
state.update({mac.MAC_LEARNING: enabled})
except exc.NoResultFound:
self._create_mac_learning_state(context,
{'id': port_id,
mac.MAC_LEARNING: enabled})
def _create_mac_learning_state(self, context, port):
with db_api.CONTEXT_WRITER.using(context):
enabled = port[mac.MAC_LEARNING]
state = nsx_models.MacLearningState(
port_id=port['id'],
mac_learning_enabled=enabled)
context.session.add(state)
return self._make_mac_learning_state_dict(state)
def get_mac_learning_state(self, context, port_id):
try:
query = model_query.query_with_hooks(
context, nsx_models.MacLearningState)
state = query.filter(
nsx_models.MacLearningState.port_id == port_id).one()
return state.mac_learning_enabled
except exc.NoResultFound:
return None