3cef984de9
Base class for modify actions. Entry points based action registration. Action manager loads and execute actions. Out-of-the-box actions implementation. Partially implements: blueprint policy-based-env-modification Change-Id: Ib148c5f2b7efb1186d77f5461ef9324cca1287c2
47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
# Copyright (c) 2015 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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import six
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@six.add_metaclass(abc.ABCMeta)
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class ModifyActionBase(object):
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"""Base class for model modify actions.
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Class is instantiated base on list of actions returned from congress then
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is performed on given object model.
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Base action class initializer doesn't have arguments. However, concrete
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action classes may have any number of parameters defining action behavior.
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These parameters must correspond to parameters returned from congress.
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Action must be registered/exposed to action manager via entry point
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'murano_policy_modify_actions'. Only actions registered via this
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entry point are can be used.
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"""
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@abc.abstractmethod
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def modify(self, model):
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"""Modifies given object model
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Action parameters are available as instance variables
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passed to initializer.
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:param model: object model to be modified
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"""
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pass
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