"""ReaderFactory: creates smartcard readers.
__author__ = "gemalto http://www.gemalto.com"
Factory pattern implementation borrowed from
Thinking in Python, Bruce Eckel,
http://mindview.net/Books/TIPython
The code to instanciate the reader Factory() has
been updated to dynamically load the module with
Robert Brewer ClassLoader.py.
Copyright 2001-2010 gemalto
Author: Jean-Daniel Aussel, mailto:jean-daniel.aussel@gemalto.com
This file is part of pyscard.
pyscard is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
pyscard 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with pyscard; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""
from smartcard.ClassLoader import get_class
class ReaderFactory:
"""Class to create readers from reader type id."""
factories = {}
def addFactory( id, ReaderFactory ):
"""Static method to add a ReaderFactory associated to a reader id."""
ReaderFactory.factories.put[id] = ReaderFactory
addFactory = staticmethod(addFactory)
# A Template Method:
def createReader( clazz, readername ):
"""Static method to create a reader from a reader clazz.
module: the python module that contains the reader class
clazz: the reader class name
readername: the reader name
"""
if not ReaderFactory.factories.has_key(clazz):
ReaderFactory.factories[clazz] = get_class( clazz ).Factory()
return ReaderFactory.factories[clazz].create( readername )
createReader = staticmethod(createReader)
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