Files
deb-python-eventlet/eventlet/logutil.py

110 lines
3.2 KiB
Python

# @author Donovan Preston
#
# Copyright (c) 2006-2007, Linden Research, Inc.
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import syslog
import logging
def file_logger(filename):
"""Create a logger. This sucks, the logging module sucks, but
it'll do for now.
"""
handler = logging.FileHandler(filename)
formatter = logging.Formatter()
handler.setFormatter(formatter)
log = logging.getLogger(filename)
log.addHandler(handler)
log.setLevel(logging.DEBUG)
return log, handler
def stream_logger(stream):
"""Create a logger. This sucks."""
handler = logging.StreamHandler(stream)
formatter = logging.Formatter()
handler.setFormatter(formatter)
log = logging.getLogger()
log.addHandler(handler)
log.setLevel(logging.DEBUG)
return log, handler
class LineLogger(object):
towrite = ''
def __init__(self, emit=None):
if emit is not None:
self.emit = emit
def write(self, stuff):
self.towrite += stuff
if '\n' in self.towrite:
self.flush()
def flush(self):
try:
newline = self.towrite.index('\n')
except ValueError:
newline = len(self.towrite)
while True:
self.emit(self.towrite[:newline])
self.towrite = self.towrite[newline+1:]
try:
newline = self.towrite.index('\n')
except ValueError:
break
def close(self):
pass
def emit(self, *args):
pass
class SysLogger(LineLogger):
"""A file-like object which writes to syslog. Can be inserted
as sys.stdin and sys.stderr to have logging output redirected
to syslog.
"""
def __init__(self, priority):
self.priority = priority
def emit(self, line):
syslog.syslog(self.priority, line)
class TeeLogger(LineLogger):
def __init__(self, one, two):
self.one, self.two = one, two
def emit(self, line):
self.one.emit(line)
self.two.emit(line)
class FileLogger(LineLogger):
def __init__(self, file):
self.file = file
def emit(self, line):
self.file.write(line + '\n')
self.file.flush()