vmware-nsx/neutron/services/loadbalancer/drivers/abstract_driver.py
Eugene Nikanorov a2e1666190 Cleanup remaining code that used 'status' fields of HealthMonitor
Also cleanup some comments in abstract_driver

fixes bug 1208822

Change-Id: Ibfee548a1e27cc25b8607fb24018e3b35148a955
2013-08-06 18:25:20 +04:00

140 lines
4.7 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2013 Radware LTD.
#
# 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.
#
# @author: Avishay Balderman, Radware
import abc
class LoadBalancerAbstractDriver(object):
"""Abstract lbaas driver that expose ~same API as lbaas plugin.
The configuration elements (Vip,Member,etc) are the dicts that
are returned to the tenant.
Get operations are not part of the API - it will be handled
by the lbaas plugin.
"""
__metaclass__ = abc.ABCMeta
@abc.abstractmethod
def create_vip(self, context, vip):
"""A real driver would invoke a call to his backend
and set the Vip status to ACTIVE/ERROR according
to the backend call result
self.plugin.update_status(context, Vip, vip["id"],
constants.ACTIVE)
"""
pass
@abc.abstractmethod
def update_vip(self, context, old_vip, vip):
"""Driver may call the code below in order to update the status.
self.plugin.update_status(context, Vip, id, constants.ACTIVE)
"""
pass
@abc.abstractmethod
def delete_vip(self, context, vip):
"""A real driver would invoke a call to his backend
and try to delete the Vip.
if the deletion was successfull, delete the record from the database.
if the deletion has failed, set the Vip status to ERROR.
"""
pass
@abc.abstractmethod
def create_pool(self, context, pool):
"""Driver may call the code below in order to update the status.
self.plugin.update_status(context, Pool, pool["id"],
constants.ACTIVE)
"""
pass
@abc.abstractmethod
def update_pool(self, context, old_pool, pool):
"""Driver may call the code below in order to update the status.
self.plugin.update_status(context,
Pool,
pool["id"], constants.ACTIVE)
"""
pass
@abc.abstractmethod
def delete_pool(self, context, pool):
"""Driver can call the code below in order to delete the pool.
self.plugin._delete_db_pool(context, pool["id"])
or set the status to ERROR if deletion failed
"""
pass
@abc.abstractmethod
def stats(self, context, pool_id):
pass
@abc.abstractmethod
def create_member(self, context, member):
"""Driver may call the code below in order to update the status.
self.plugin.update_status(context, Member, member["id"],
constants.ACTIVE)
"""
pass
@abc.abstractmethod
def update_member(self, context, old_member, member):
"""Driver may call the code below in order to update the status.
self.plugin.update_status(context, Member,
member["id"], constants.ACTIVE)
"""
pass
@abc.abstractmethod
def delete_member(self, context, member):
pass
@abc.abstractmethod
def create_health_monitor(self, context, health_monitor):
pass
@abc.abstractmethod
def update_health_monitor(self, context,
old_health_monitor,
health_monitor,
pool_id):
pass
@abc.abstractmethod
def delete_health_monitor(self, context, health_monitor):
"""Driver may call the code below in order to delete the monitor.
self.plugin._delete_db_health_monitor(context, health_monitor["id"])
"""
pass
@abc.abstractmethod
def create_pool_health_monitor(self, context,
health_monitor,
pool_id):
"""Driver may call the code below in order to update the status.
self.plugin.update_pool_health_monitor(context,
health_monitor["id"],
pool_id,
constants.ACTIVE)
"""
pass
@abc.abstractmethod
def delete_pool_health_monitor(self, context, health_monitor, pool_id):
pass