71 lines
2.3 KiB
Python
71 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Copyright(C) 2010 Romain Bignon
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This program 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, version 3 of the License.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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"""
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import re
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import os
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import sys
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from logging import warning, debug
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from types import ClassType
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import weboob.backends as backends
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from backend import Backend
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class Module:
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def __init__(self, name, module):
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self.name = name
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self.module = module
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self.klass = None
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for attrname in dir(self.module):
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attr = getattr(self.module, attrname)
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if isinstance(attr, ClassType) and issubclass(attr, Backend) and attr != Backend:
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self.klass = attr
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if not self.klass:
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raise ImportError("This is not a backend module (no Backend class found)")
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def hasCaps(self, caps):
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return self.klass.CAPS & caps
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def createBackend(self):
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return self.klass()
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class ModulesLoader:
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def __init__(self):
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self.modules = {}
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def load(self):
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path = backends.__path__[0]
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regexp = re.compile('^%s/([\w\d_]+)$' % path)
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for root, dirs, files in os.walk(path):
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m = regexp.match(root)
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if m and '__init__.py' in files:
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self.load_module('weboob.backends.%s' % m.group(1))
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def load_module(self, name):
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try:
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backend = Module(name, __import__(name, fromlist=[name]))
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except ImportError, e:
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warning('Unable to load module %s: %s' % (name, e))
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return
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if name in self.modules:
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warning('Module "%s" is already loaded (%s)' % self.modules[name].module)
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return
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self.modules[name] = backend
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debug('Loaded module %s (%s)' % (name, backend.module.__name__))
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