neutron-lbaas/neutron_lbaas/drivers/driver_base.py

90 lines
2.7 KiB
Python

# Copyright 2014 A10 Networks
#
# 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_lbaas.db.loadbalancer import models
from neutron_lbaas.drivers import driver_mixins
class NotImplementedManager(object):
"""Helper class to make any subclass of LoadBalancerBaseDriver explode if
it is missing any of the required object managers.
"""
def create(self, context, obj):
raise NotImplementedError()
def update(self, context, old_obj, obj):
raise NotImplementedError()
def delete(self, context, obj):
raise NotImplementedError()
class LoadBalancerBaseDriver(object):
"""LBaaSv2 object model drivers should subclass LoadBalancerBaseDriver,
and initialize the following manager classes to create, update, and delete
the various load balancer objects.
"""
load_balancer = NotImplementedManager()
listener = NotImplementedManager()
pool = NotImplementedManager()
member = NotImplementedManager()
health_monitor = NotImplementedManager()
def __init__(self, plugin):
self.plugin = plugin
class BaseLoadBalancerManager(driver_mixins.BaseRefreshMixin,
driver_mixins.BaseStatsMixin,
driver_mixins.BaseManagerMixin):
model_class = models.LoadBalancer
@property
def db_delete_method(self):
return self.driver.plugin.db.delete_loadbalancer
class BaseListenerManager(driver_mixins.BaseManagerMixin):
model_class = models.Listener
@property
def db_delete_method(self):
return self.driver.plugin.db.delete_listener
class BasePoolManager(driver_mixins.BaseManagerMixin):
model_class = models.PoolV2
@property
def db_delete_method(self):
return self.driver.plugin.db.delete_pool
class BaseMemberManager(driver_mixins.BaseManagerMixin):
model_class = models.MemberV2
@property
def db_delete_method(self):
return self.driver.plugin.db.delete_member
class BaseHealthMonitorManager(driver_mixins.BaseManagerMixin):
model_class = models.HealthMonitorV2
@property
def db_delete_method(self):
return self.driver.plugin.db.delete_healthmonitor