88 lines
3.0 KiB
Python
88 lines
3.0 KiB
Python
# Copyright 2014 A10 Networks
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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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from neutron.db.loadbalancer import loadbalancer_db as lb_db
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from neutron.services.loadbalancer.drivers import driver_mixins
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class NotImplementedManager(object):
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"""Helper class to make any subclass of LBAbstractDriver explode if it
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is missing any of the required object managers.
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"""
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def create(self, context, obj):
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raise NotImplementedError()
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def update(self, context, old_obj, obj):
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raise NotImplementedError()
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def delete(self, context, obj):
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raise NotImplementedError()
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class LoadBalancerBaseDriver(object):
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"""LBaaSv2 object model drivers should subclass LBAbstractDriver, and
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initialize the following manager classes to create, update, and delete
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the various load balancer objects.
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"""
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load_balancer = NotImplementedManager()
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listener = NotImplementedManager()
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pool = NotImplementedManager()
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member = NotImplementedManager()
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health_monitor = NotImplementedManager()
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def __init__(self, plugin):
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self.plugin = plugin
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class BaseLoadBalancerManager(driver_mixins.BaseRefreshMixin,
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driver_mixins.BaseStatsMixin,
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driver_mixins.BaseStatusUpdateMixin,
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driver_mixins.BaseManagerMixin):
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def __init__(self, driver):
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super(BaseLoadBalancerManager, self).__init__(driver)
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# TODO(dougw), use lb_db.LoadBalancer when v2 lbaas
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# TODO(dougw), get rid of __init__() in StatusHelperManager, and
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# the if is not None clauses; after fixing this next line,
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# it can become a mandatory variable for that subclass.
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self.model_class = None
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class BaseListenerManager(driver_mixins.BaseManagerMixin):
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pass
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class BasePoolManager(driver_mixins.BaseStatusUpdateMixin,
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driver_mixins.BaseManagerMixin):
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def __init__(self, driver):
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super(BasePoolManager, self).__init__(driver)
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self.model_class = lb_db.Pool
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class BaseMemberManager(driver_mixins.BaseStatusUpdateMixin,
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driver_mixins.BaseManagerMixin):
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def __init__(self, driver):
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super(BaseMemberManager, self).__init__(driver)
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self.model_class = lb_db.Member
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class BaseHealthMonitorManager(
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driver_mixins.BaseHealthMonitorStatusUpdateMixin,
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driver_mixins.BaseManagerMixin):
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pass
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