mirror of https://github.com/ansible/ansible.git
Add attribute starter notes
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# TODO: header
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# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#from ansible.common.errors import AnsibleError
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class MyMeta(type):
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def __call__(self, *args, **kwargs):
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obj = type.__call__(self, *args)
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for name, value in kwargs.items():
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setattr(obj, name, value)
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return obj
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class Attribute(object):
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__metaclass__ = MyMeta
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def load(self, data, base_object):
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''' the loader is called to store the attribute from a datastructure when key names match. The default is very basic '''
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self._validate(base_object, data)
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setattr(base_object, self.name, data)
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def _validate(self, data, base_object):
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''' validate is called after loading an object data structure to massage any input or raise errors on any incompatibilities '''
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if self.validator:
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self.validator(base_object)
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def post_validate(self, base_object):
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''' post validate is called after templating the context of a Task (usually in Runner) to validate the types of arguments '''
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if self.post_validator:
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self.post_validator(base_object)
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class FieldAttribute(Attribute):
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__metaclass__ = MyMeta
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pass
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