tacker/neutron/plugins/bigswitch/db/porttracker_db.py

54 lines
2.1 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2013, Big Switch Networks
# 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 neutron.api.v2 import attributes
from neutron.openstack.common import log as logging
LOG = logging.getLogger(__name__)
def get_port_hostid(context, port_id):
# REVISIT(kevinbenton): this is a workaround to avoid portbindings_db
# relational table generation until one of the functions is called.
from neutron.db import portbindings_db
with context.session.begin(subtransactions=True):
query = context.session.query(portbindings_db.PortBindingPort)
res = query.filter_by(port_id=port_id).first()
if not res:
return False
return res.host
def put_port_hostid(context, port_id, host):
# REVISIT(kevinbenton): this is a workaround to avoid portbindings_db
# relational table generation until one of the functions is called.
from neutron.db import portbindings_db
if not attributes.is_attr_set(host):
LOG.warning(_("No host_id in port request to track port location."))
return
if port_id == '':
LOG.warning(_("Received an empty port ID for host_id '%s'"), host)
return
if host == '':
LOG.debug(_("Received an empty host_id for port '%s'"), port_id)
return
LOG.debug(_("Logging port %(port)s on host_id %(host)s"),
{'port': port_id, 'host': host})
with context.session.begin(subtransactions=True):
location = portbindings_db.PortBindingPort(port_id=port_id, host=host)
context.session.merge(location)