¡@

Home 

OpenStack Study: __init__.py

OpenStack Index

**** 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()