OpenStack Study: executor.py

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# (c) Copyright 2013 Hewlett-Packard Development Company, L.P.

#

# 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.

"""Generic exec utility that allows us to set the

execute and root_helper attributes for putils.

Some projects need their own execute wrapper

and root_helper settings, so this provides that hook.

"""

from cinder.openstack.common import processutils as putils

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class Executor(object):

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    def __init__(self, root_helper, execute=putils.execute,

                 *args, **kwargs):

        self.set_execute(execute)

        self.set_root_helper(root_helper)

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    def set_execute(self, execute):

        self._execute = execute

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    def set_root_helper(self, helper):

        self._root_helper = helper