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