752422dcb0
Updates the BigSwitch port_tracker code to use the sqlalchemy merge method instead of the add method for the port location tracking code to avoid primary key constraint errors if device-ids are moved or re-used Fixes: bug #1208990 Change-Id: I06065ac888873b00f445d4356b17f084ee38c1ea
51 lines
1.7 KiB
Python
51 lines
1.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2013, Big Switch Networks
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import sqlalchemy as sa
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from neutron.api.v2 import attributes
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from neutron.db import model_base
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from neutron.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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class PortLocation(model_base.BASEV2):
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port_id = sa.Column(sa.String(255), primary_key=True)
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host_id = sa.Column(sa.String(255), nullable=False)
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def get_port_hostid(context, port_id):
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with context.session.begin(subtransactions=True):
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query = context.session.query(PortLocation)
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res = query.filter_by(port_id=port_id).first()
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if not res:
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return False
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return res.host_id
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def put_port_hostid(context, port_id, host_id):
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if not attributes.is_attr_set(host_id):
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LOG.warning(_("No host_id in port request to track port location."))
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return
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if port_id == '':
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LOG.warning(_("Received an empty port ID for host '%s'"), host_id)
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return
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with context.session.begin(subtransactions=True):
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location = PortLocation(port_id=port_id, host_id=host_id)
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context.session.merge(location)
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