vmware-nsx/vmware_nsx/db/maclearning.py
Gary Kotton 11e54f5c21 Prepare for neutron-lib DB support
Updates code following commit 8f80a52b01f77b8e2988f6ec78cfbfbecab4895d.

Change-Id: Iba1067a22fd7bcc952ea1d81c32cc519168128f0
2016-11-01 02:30:33 -07:00

66 lines
2.5 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.api.v2 import attributes
from neutron.db import _utils as db_utils
from neutron.db import db_base_plugin_v2
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__)
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)
def _extend_port_mac_learning_state(self, port_res, port_db):
state = port_db.mac_learning_state
if state and state.mac_learning_enabled:
port_res[mac.MAC_LEARNING] = state.mac_learning_enabled
# Register dict extend functions for ports
db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
attributes.PORTS, ['_extend_port_mac_learning_state'])
def _update_mac_learning_state(self, context, port_id, enabled):
try:
query = self._model_query(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 context.session.begin(subtransactions=True):
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)