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OpenStack Study: __init__.py**** CubicPower OpenStack Study ****
# Copyright (c) 2011 OpenStack Foundation # All Rights Reserved. # # 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. """ Scheduler host weights """ from oslo.config import cfg from nova import weights CONF = cfg.CONF
**** CubicPower OpenStack Study **** class WeighedHost(weights.WeighedObject):
**** CubicPower OpenStack Study **** def to_dict(self): x = dict(weight=self.weight) x['host'] = self.obj.host return x
**** CubicPower OpenStack Study **** def __repr__(self): return "WeighedHost [host: %s, weight: %s]" % ( self.obj.host, self.weight)
**** CubicPower OpenStack Study **** class BaseHostWeigher(weights.BaseWeigher): """Base class for host weights.""" pass
**** CubicPower OpenStack Study **** class HostWeightHandler(weights.BaseWeightHandler): object_class = WeighedHost
**** CubicPower OpenStack Study **** def __init__(self): super(HostWeightHandler, self).__init__(BaseHostWeigher) def all_weighers(): """Return a list of weight plugin classes found in this directory.""" return HostWeightHandler().get_all_classes()
**** CubicPower OpenStack Study **** def all_weighers(): """Return a list of weight plugin classes found in this directory.""" return HostWeightHandler().get_all_classes()
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