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Viewing changes to neutron_lbaas/services/loadbalancer/drivers/driver_base.py

  • Committer: Package Import Robot
  • Author(s): James Page
  • Date: 2015-01-14 11:31:23 UTC
  • Revision ID: package-import@ubuntu.com-20150114113123-t0ymuw5vm45jn8gu
Tags: upstream-2015.1~b1
Import upstream version 2015.1~b1

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neutron_lbaas/services/loadbalancer/drivers/driver_base.py
 
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# 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_lbaas.db.loadbalancer import loadbalancer_db as lb_db
 
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from neutron_lbaas.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