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##############################################################################
#
# Copyright (c) 2004 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Compatibility wrapper around the logging package.
If the logging package isn't available (as in Python 2.2), this
provides a limited implementation so the zpkgtools setup.py support
code doesn't fall over.
This isn't sufficient to support building packages with Python 2.2.
$Id: loggingapi.py,v 1.1 2004/06/11 19:24:35 fdrake Exp $
"""
try:
from logging import getLogger
from logging import CRITICAL, FATAL, ERROR, WARNING, WARN
from logging import INFO, DEBUG, NOTSET
from logging import Handler, StreamHandler
except ImportError:
CRITICAL = 50
FATAL = CRITICAL
ERROR = 40
WARNING = 30
WARN = WARNING
INFO = 20
DEBUG = 10
NOTSET = 0
_loggers = {}
def getLogger(name=None):
if "root" not in _loggers:
_loggers["root"] = Logger("root")
_loggers["root"].setLevel(WARNING)
name = name or "root"
if name not in _loggers:
_loggers[name] = Logger(name, _loggers["root"])
return _loggers[name]
class Logger:
def __init__(self, name, root=None):
self.name = name
self.level = NOTSET
self._handler = None
self._root = root
def setLevel(self, level):
self.level = level
def addHandler(self, handler):
self._handler = handler
def log(self, level, msg, *args, **kwargs):
loggers = [self]
if self._root is not None:
loggers.append(self._root)
for logger in loggers:
effective_level = logger.level
if effective_level == NOTSET and logger._root is not None:
effective_level = self._root.level
if level >= effective_level:
self._log(self.name, level, msg, args, kwargs)
def _log(self, name, level, msg, args, kwargs):
if args:
msg = msg % args
elif kwargs:
msg = msg % kwargs
msg = "%s(%s):%s" % (name, level, msg)
print >>self._handler, msg
class Handler:
def __init__(self):
pass
def StreamHandler():
import sys
return sys.stderr
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