root / pykota / trunk / pykota / logger.py @ 3184

Revision 3184, 1.7 kB (checked in by jerome, 17 years ago)

Added some docstrings.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
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1# PyKota
2# -*- coding: ISO-8859-15 -*-
3#
4# PyKota : Print Quotas for CUPS and LPRng
5#
6# (c) 2003, 2004, 2005, 2006, 2007 Jerome Alet <alet@librelogiciel.com>
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20#
21# $Id$
22#
23#
24
25"""This module defines base classes used by all logging backends."""
26
27import os
28import imp
29
30class PyKotaLoggingError(Exception):
31    """An exception for logging related stuff."""
32    def __init__(self, message = ""):
33        self.message = message
34        Exception.__init__(self, message)
35    def __repr__(self):
36        return self.message
37    __str__ = __repr__
38
39def openLogger(backend) :
40    """Returns the appropriate logger subsystem object."""
41    try :
42        loggingbackend = imp.load_source("loggingbackend", 
43                                         os.path.join(os.path.dirname(__file__),
44                                                      "loggers",
45                                                      "%s.py" % backend.lower()))
46    except ImportError :
47        raise PyKotaLoggingError, _("Unsupported logging subsystem %s") % backend
48    else :   
49        return loggingbackend.Logger()
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