#!/usr/bin/python

""" contains a chain of filters """

# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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 Library 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.
# Copyright 2004 Dries Verachtert

from log4py import Logger

class FilterChain:
    
    def __init__(self):
        self.__cat = Logger().get_instance(self)
        self.__filterList = []
            
    def appendFilter(self, newFilter):
        self.__filterList.append(newFilter)
        
    def accepts(self, value):
        for f in self.__filterList:
            if not f.accepts(value):
                return False
        return True