1 # -----------------------------------------------------------------------
2 # Copyright (C) 2007 Georgia Public Library Service
3 # Bill Erickson <billserickson@gmail.com>
5 # This program is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU General Public License
7 # as published by the Free Software Foundation; either version 2
8 # of the License, or (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
14 # -----------------------------------------------------------------------
16 import traceback, sys, os, re
17 from osrf.const import *
21 def osrfInitLog(level, facility=None, file=None):
22 """Initialize the logging subsystem."""
26 osrfInitSyslog(facility, level)
27 syslog.syslog(syslog.LOG_DEBUG, "syslog initialized")
30 sys.stderr.write("\n * file-based logging not implemented yet\n")
35 # -----------------------------------------------------------------------
36 # Define wrapper functions for the log levels
37 # -----------------------------------------------------------------------
38 def osrfLogInternal(s): __osrfLog(OSRF_LOG_INTERNAL,s)
39 def osrfLogDebug(s): __osrfLog(OSRF_LOG_DEBUG,s)
40 def osrfLogInfo(s): __osrfLog(OSRF_LOG_INFO,s)
41 def osrfLogWarn(s): __osrfLog(OSRF_LOG_WARN,s)
42 def osrfLogErr(s): __osrfLog(OSRF_LOG_ERR,s)
45 frgx = re.compile('/.*/')
47 def __osrfLog(level, msg):
48 """Builds the log message and passes the message off to the logger."""
56 if int(level) > int(loglevel): return
58 # find the caller info for logging the file and line number
59 tb = traceback.extract_stack(limit=3)
62 slvl = syslog.LOG_DEBUG
64 if level == OSRF_LOG_INTERNAL: lvl = 'INT '; slvl=syslog.LOG_DEBUG
65 if level == OSRF_LOG_INFO: lvl = 'INFO'; slvl=syslog.LOG_INFO
66 if level == OSRF_LOG_WARN: lvl = 'WARN'; slvl=syslog.LOG_WARNING
67 if level == OSRF_LOG_ERR: lvl = 'ERR '; slvl=syslog.LOG_ERR
69 file = frgx.sub('',tb[0])
70 msg = '[%s:%d:%s:%s] %s' % (lvl, os.getpid(), file, tb[1], msg)
71 syslog.syslog(slvl, msg)
73 if level == OSRF_LOG_ERR:
74 sys.stderr.write(msg + '\n')
77 def osrfInitSyslog(facility, level):
78 """Connect to syslog and set the logmask based on the level provided."""
84 if facility == 'local0': facility = syslog.LOG_LOCAL0
85 if facility == 'local1': facility = syslog.LOG_LOCAL1
86 if facility == 'local2': facility = syslog.LOG_LOCAL2
87 if facility == 'local3': facility = syslog.LOG_LOCAL3
88 if facility == 'local4': facility = syslog.LOG_LOCAL4
89 if facility == 'local5': facility = syslog.LOG_LOCAL5
90 if facility == 'local6': facility = syslog.LOG_LOCAL6
91 # XXX add other facility maps if necessary
92 syslog.openlog(sys.argv[0], 0, facility)
94 # this is redundant...
95 mask = syslog.LOG_UPTO(syslog.LOG_ERR)
96 if level >= 1: mask |= syslog.LOG_MASK(syslog.LOG_WARNING)
97 if level >= 2: mask |= syslog.LOG_MASK(syslog.LOG_NOTICE)
98 if level >= 3: mask |= syslog.LOG_MASK(syslog.LOG_INFO)
99 if level >= 4: mask |= syslog.LOG_MASK(syslog.LOG_DEBUG)
100 syslog.setlogmask(mask)