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registry.py
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Thu, Aug 8, 11:27

registry.py
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# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2012, 2013, 2014 CERN.
##
## Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
import inspect
from invenio.ext.registry import DictModuleAutoDiscoverySubRegistry
from flask.ext.registry import RegistryError, RegistryProxy
class WorkflowsRegistry(DictModuleAutoDiscoverySubRegistry):
def keygetter(self, key, class_):
return class_.__name__ if key is None else key
def valuegetter(self, class_or_module):
if inspect.ismodule(class_or_module):
attr_name = class_or_module.__name__.split('.')[-1]
if attr_name == '__init__':
# Ignore __init__ modules.
return None
if hasattr(class_or_module, attr_name):
#key = attr_name if key is None else key
return getattr(class_or_module, attr_name)
else:
all_ = getattr(class_or_module, '__all__', [])
if len(all_) == 0:
raise RegistryError(
"Workflow class not found. Class name must match "
"module name or be first element in __all__."
)
return getattr(class_or_module, all_[0])
return class_or_module
workflows = RegistryProxy('workflows', WorkflowsRegistry, 'workflows')
actions = RegistryProxy('workflows.actions', WorkflowsRegistry, 'actions')
__all__ = ['actions', 'workflows']

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