neutron/neutron/objects/router.py

119 lines
4.3 KiB
Python

# 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.
import netaddr
from oslo_versionedobjects import base as obj_base
from oslo_versionedobjects import fields as obj_fields
from sqlalchemy import func
from neutron.common import utils
from neutron.db.models import l3
from neutron.db.models import l3_attrs
from neutron.db.models import l3agent as rb_model
from neutron.extensions import availability_zone as az_ext
from neutron.objects import base
from neutron.objects import common_types
@obj_base.VersionedObjectRegistry.register
class RouterRoute(base.NeutronDbObject):
# Version 1.0: Initial version
VERSION = '1.0'
db_model = l3.RouterRoute
fields = {
'router_id': common_types.UUIDField(),
'destination': common_types.IPNetworkField(),
'nexthop': obj_fields.IPAddressField()
}
primary_keys = ['router_id', 'destination', 'nexthop']
foreign_keys = {'Router': {'router_id': 'id'}}
@classmethod
def modify_fields_from_db(cls, db_obj):
result = super(RouterRoute, cls).modify_fields_from_db(db_obj)
if 'destination' in result:
result['destination'] = utils.AuthenticIPNetwork(
result['destination'])
if 'nexthop' in result:
result['nexthop'] = netaddr.IPAddress(result['nexthop'])
return result
@classmethod
def modify_fields_to_db(cls, fields):
result = super(RouterRoute, cls).modify_fields_to_db(fields)
if 'destination' in result:
result['destination'] = cls.filter_to_str(result['destination'])
if 'nexthop' in result:
result['nexthop'] = cls.filter_to_str(result['nexthop'])
return result
@obj_base.VersionedObjectRegistry.register
class RouterExtraAttributes(base.NeutronDbObject):
# Version 1.0: Initial version
VERSION = '1.0'
db_model = l3_attrs.RouterExtraAttributes
fields = {
'router_id': common_types.UUIDField(),
'distributed': obj_fields.BooleanField(default=False),
'service_router': obj_fields.BooleanField(default=False),
'ha': obj_fields.BooleanField(default=False),
'ha_vr_id': obj_fields.IntegerField(nullable=True),
'availability_zone_hints': obj_fields.ListOfStringsField(nullable=True)
}
primary_keys = ['router_id']
foreign_keys = {'Router': {'router_id': 'id'}}
@classmethod
def modify_fields_from_db(cls, db_obj):
result = super(RouterExtraAttributes, cls).modify_fields_from_db(
db_obj)
if az_ext.AZ_HINTS in result:
result[az_ext.AZ_HINTS] = (
az_ext.convert_az_string_to_list(result[az_ext.AZ_HINTS]))
return result
@classmethod
def modify_fields_to_db(cls, fields):
result = super(RouterExtraAttributes, cls).modify_fields_to_db(fields)
if az_ext.AZ_HINTS in result:
result[az_ext.AZ_HINTS] = (
az_ext.convert_az_list_to_string(result[az_ext.AZ_HINTS]))
return result
@classmethod
def get_router_agents_count(cls, context):
# TODO(sshank): This is pulled out from l3_agentschedulers_db.py
# until a way to handle joins is figured out.
binding_model = rb_model.RouterL3AgentBinding
sub_query = (context.session.query(
binding_model.router_id,
func.count(binding_model.router_id).label('count')).
join(l3_attrs.RouterExtraAttributes,
binding_model.router_id ==
l3_attrs.RouterExtraAttributes.router_id).
join(l3.Router).
group_by(binding_model.router_id).subquery())
query = (context.session.query(l3.Router, sub_query.c.count).
outerjoin(sub_query))
return [(router, agent_count) for router, agent_count in query]