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#!/usr/bin/env python
#
# Copyright 2001-2002 by Vinay Sajip. All Rights Reserved.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted,
# provided that the above copyright notice appear in all copies and that
# both that copyright notice and this permission notice appear in
# supporting documentation, and that the name of Vinay Sajip
# not be used in advertising or publicity pertaining to distribution
# of the software without specific, written prior permission.
# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
# This file is part of the Python logging distribution. See
# http://www.red-dove.com/python_logging.html
#
"""Test harness for the logging module. Demonstrates the use of a wildcard
name-space filter with and without custom message classes.
Copyright (C) 2001-2002 Vinay Sajip. All Rights Reserved.
"""
import logging, re, string, types
class TaggedEvent:
def __init__(self, tag, msg):
self.tag = tag
self.msg = msg
def __str__(self):
return "%s: %s" % (self.tag, self.msg)
class WildcardFilter(logging.Filter):
def __init__(self, wildcards):
self.setWildcards(wildcards)
def setWildcard(self, wildcard):
arr = string.split(wildcard, ".")
for i in xrange(len(arr)):
s = arr[i]
if s == "*":
arr[i] = r'[\w.]*'
elif string.find(s, "*") > 0:
arr[i] = string.replace(s, "*", r'[\w]*')
s = "^%s$" % string.join(arr, r'\.')
self.patterns.append(re.compile(s))
def setWildcards(self, wildcards):
if type(wildcards) != types.ListType:
wildcards = [wildcards]
self.patterns = []
for wildcard in wildcards:
self.setWildcard(wildcard)
def filter(self, record):
rv = 0
for pat in self.patterns:
m = pat.match(record.name)
if m is not None:
rv = 1
break
return rv
class TagFilter(WildcardFilter):
def filter(self, record):
rv = 0
if isinstance(record.msg, TaggedEvent):
tag = record.msg.tag
else:
tag = record.name
for pat in self.patterns:
m = pat.match(tag)
if m is not None:
rv = 1
break
return rv
def main():
handler = logging.StreamHandler()
root = logging.getLogger("")
root.setLevel(logging.DEBUG)
ab = logging.getLogger("a.b")
abc = logging.getLogger("a.b.c")
root.addHandler(handler)
filter = WildcardFilter("*.b")
handler.addFilter(filter)
ab.info("#1 from a.b") #logged
abc.info("#1 from a.b.c") #not logged
filter.setWildcards("*.b.c")
ab.info("#2 from a.b") #not logged
abc.info("#2 from a.b.c") #logged
filter.setWildcards("*.b*")
ab.info("#3 from a.b") #logged
abc.info("#3 from a.b.c") #not logged
filter.setWildcards("*")
ab.info("#4 from a.b") #logged
abc.info("#4 from a.b.c") #logged
filter.setWildcards("a*")
ab.info("#5 from a.b") #not logged
abc.info("#5 from a.b.c") #not logged
filter.setWildcards("a.*")
ab.info("#6 from a.b") #logged
abc.info("#6 from a.b.c") #logged
filter.setWildcards("*.b.*")
ab.info("#7 from a.b") #not logged
abc.info("#7 from a.b.c") #logged
filter.setWildcards(["*.b", "*.b.*"])
ab.info("#8 from a.b") #logged
abc.info("#8 from a.b.c") #logged
filter.setWildcards(["a.*.c"])
ab.info("#9 from a.b") #not logged
abc.info("#9 from a.b.c") #logged
#Now test filtering with a tagged class
handler.removeFilter(filter)
tagfilter = TagFilter(["*.b", "*.b.*"])
root.addFilter(tagfilter)
root.info(TaggedEvent("a.b", "#10")) #logged
root.info(TaggedEvent("a.c", "#10")) #not logged
root.info(TaggedEvent("a.b.c", "#10")) #logged
root.info(TaggedEvent("a.b.d", "#10")) #logged
if __name__ == "__main__":
import sys
args = sys.argv[1:]
if "-profile" in args:
import profile, pstats
args.remove("-profile")
statf = "log_test21.pro"
profile.run("main()", statf)
stats = pstats.Stats(statf)
stats.strip_dirs().sort_stats('time').print_stats()
else:
main()
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