OpenStack Study: __init__.py

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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

#

# 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 cinder.openstack.common.scheduler import base_weight

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class WeighedHost(base_weight.WeighedObject):

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    def to_dict(self):

        return {

            'weight': self.weight,

            'host': self.obj.host,

        }

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    def __repr__(self):

        return ("WeighedHost [host: %s, weight: %s]" %

                (self.obj.host, self.weight))

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class BaseHostWeigher(base_weight.BaseWeigher):

"""Base class for host weights."""

pass

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class HostWeightHandler(base_weight.BaseWeightHandler):

object_class = WeighedHost

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    def __init__(self, namespace):

        super(HostWeightHandler, self).__init__(BaseHostWeigher, namespace)