Source Code for Module rrlog.logging23

 1  #Copyright (c) 2007 
 2  #        Ruben Reifenberg, Germany, 07381. 
 3  #    All rights reserved. 
 4  # 
 5  #Redistribution and use in source and binary forms, with or without 
 6  #modification, are permitted provided that the following conditions 
 7  #are met: 
 8  #1. Redistributions of source code must retain the above copyright 
 9  #   notice, this list of conditions and the following disclaimer as 
10  #   the first lines of this file unmodified. 
11  #2. Redistributions in binary form must reproduce the above copyright 
12  #   notice, this list of conditions and the following disclaimer in the 
13  #   documentation and/or other materials provided with the distribution. 
14  # 
15  # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 
16  # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
17  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
18  # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 
19  # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
20  # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
21  # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
22  # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
23  # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
24  # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
25  # SUCH DAMAGE. 
26   
27  """ 
28  @summary: Integration into Python 2.3 logging as a Handler 
29  @author: Ruben Reifenberg 
30  @var LEVELMAP: 1:1 mapping of single characters (Like "E") to the level constants of the standard logging module; 
31  {logging-level: Category-Character}. You may modify this. 
32  """ 
33   
34   
35   
36  from logging import Handler,CRITICAL,ERROR,WARNING,INFO,DEBUG,NOTSET 
37   
38  LEVELMAP = { 
39          CRITICAL: "C", # == FATAL 
40          ERROR: "E", 
41          WARNING: "W", 
42          INFO: "I", 
43          DEBUG: "D", 
44          NOTSET: "", 
45          } 
46   
47 -def seFilesExclude(fname): 
48          """ 
49          callable that exludes logging.__init__ from stack extraction. 
50          @return: True if fname is "logging/__init__.py" 
51          """ 
52          return fname.endswith("logging/__init__.py") 
53   
54 -class _Handler(Handler): 
55 -        def __init__(self, log, level=NOTSET): 
56                  """ 
57                  @param log: Your ready-to-use log object 
58                  @param level: One of the ordered standard logging constants 
59                  """ 
60                  Handler.__init__(self, level) 
61                  self._log = log 
62   
63 -        def emit(self, record): 
64                  self._log(record.msg, traceDepth=2) 
65   
66 -def handler(*args, **kwargs): 
67          return _Handler(*args, **kwargs) 
68   
69   
70 -def useALogger(): 
71          logger = logging.getLogger("gimmeALogger") 
72          for i in range(0,7): 
73                  logger.info("info%d?"%(i)) 
74                  logger.warn("warning%d?"%(i)) 
75                  logger.error("error%d?"%(i)) 
76   
77  if __name__ == "__main__": 
78          from rrlog.server.filewriter import createLocalLog # local == all in same process, no separate server 
79          log = createLocalLog( 
80                          filePathPattern="./integrated-log-%s.txt", # "pattern" because %s (or %d) is required for the rotate-number 
81                          rotateCount=3, # rotate over 3 files 
82                          rotateLineMin=10, #at least 10 lines in each file before rotating 
83                          #seFilesExclude=seFilesExclude, 
84                          ) 
85          import logging 
86          logger = logging.getLogger("gimmeALogger") 
87          logger.setLevel(WARNING) 
88          logger.addHandler(handler(log)) 
89          useALogger() 
90