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# 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
# 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 nova import weights
class WeighedHost(weights.WeighedObject):
def to_dict(self):
x = dict(weight=self.weight)
x['host'] =
return x
def __repr__(self):
return "WeighedHost [host: %r, weight: %s]" % (
self.obj, self.weight)
class BaseHostWeigher(weights.BaseWeigher):
"""Base class for host weights."""
class HostWeightHandler(weights.BaseWeightHandler):
object_class = WeighedHost
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()