96 lines
3.7 KiB
Python
96 lines
3.7 KiB
Python
# Copyright 2014 VMware, Inc.
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#
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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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#
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from neutron_lib.db import api as db_api
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from oslo_db import exception as d_exc
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from oslo_log import log as logging
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from sqlalchemy import orm
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from vmware_nsx._i18n import _
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from vmware_nsx.common import exceptions as p_exc
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from vmware_nsx.db import nsx_models
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LOG = logging.getLogger(__name__)
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def lsn_add(context, network_id, lsn_id):
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"""Add Logical Service Node information to persistent datastore."""
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with db_api.CONTEXT_WRITER.using(context):
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lsn = nsx_models.Lsn(network_id, lsn_id)
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context.session.add(lsn)
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def lsn_remove(context, lsn_id):
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"""Remove Logical Service Node information from datastore given its id."""
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with db_api.CONTEXT_WRITER.using(context):
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context.session.query(nsx_models.Lsn).filter_by(lsn_id=lsn_id).delete()
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def lsn_get_for_network(context, network_id, raise_on_err=True):
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"""Retrieve LSN information given its network id."""
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query = context.session.query(nsx_models.Lsn)
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try:
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return query.filter_by(net_id=network_id).one()
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except (orm.exc.NoResultFound, d_exc.DBError):
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msg = _('Unable to find Logical Service Node for network %s')
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if raise_on_err:
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LOG.error(msg, network_id)
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raise p_exc.LsnNotFound(entity='network',
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entity_id=network_id)
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LOG.warning(msg, network_id)
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def lsn_port_add_for_lsn(context, lsn_port_id, subnet_id, mac, lsn_id):
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"""Add Logical Service Node Port information to persistent datastore."""
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with db_api.CONTEXT_WRITER.using(context):
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lsn_port = nsx_models.LsnPort(lsn_port_id, subnet_id, mac, lsn_id)
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context.session.add(lsn_port)
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def lsn_port_get_for_subnet(context, subnet_id, raise_on_err=True):
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"""Return Logical Service Node Port information given its subnet id."""
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with db_api.CONTEXT_READER.using(context):
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try:
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return (context.session.query(nsx_models.LsnPort).
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filter_by(sub_id=subnet_id).one())
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except (orm.exc.NoResultFound, d_exc.DBError):
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if raise_on_err:
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raise p_exc.LsnPortNotFound(lsn_id=None,
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entity='subnet',
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entity_id=subnet_id)
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def lsn_port_get_for_mac(context, mac_address, raise_on_err=True):
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"""Return Logical Service Node Port information given its mac address."""
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with db_api.CONTEXT_READER.using(context):
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try:
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return (context.session.query(nsx_models.LsnPort).
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filter_by(mac_addr=mac_address).one())
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except (orm.exc.NoResultFound, d_exc.DBError):
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if raise_on_err:
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raise p_exc.LsnPortNotFound(lsn_id=None,
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entity='mac',
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entity_id=mac_address)
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def lsn_port_remove(context, lsn_port_id):
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"""Remove Logical Service Node port from the given Logical Service Node."""
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with db_api.CONTEXT_WRITER.using(context):
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(context.session.query(nsx_models.LsnPort).
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filter_by(lsn_port_id=lsn_port_id).delete())
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