5 import logging, logging.handlers
7 # a logger that can handle tracebacks
9 def __init__ (self,logfile=None,loggername=None,level=logging.INFO):
10 # default is to locate loggername from the logfile if avail.
13 handler=logging.StreamHandler()
14 handler.setFormatter(logging.Formatter("%(message)s"))
17 loggername=os.path.basename(logfile)
19 handler=logging.handlers.RotatingFileHandler(logfile,maxBytes=1000000, backupCount=5)
21 # This is usually a permissions error becaue the file is
22 # owned by root, but httpd is trying to access it.
23 tmplogfile=os.getenv("TMPDIR", "/tmp") + os.path.sep + os.path.basename(logfile)
24 handler=logging.handlers.RotatingFileHandler(tmplogfile,maxBytes=1000000, backupCount=5)
25 handler.setFormatter(logging.Formatter("%(asctime)s - %(levelname)s - %(message)s"))
27 self.logger=logging.getLogger(loggername)
28 self.logger.setLevel(level)
29 self.logger.addHandler(handler)
31 def setLevel(self,level):
32 self.logger.setLevel(level)
36 def wrapped(self,msg,*args,**kwds):
37 native=getattr(self.logger,fun.__name__)
38 return native(msg,*args,**kwds)
39 #wrapped.__doc__=native.__doc__
53 # logs an exception - use in an except statement
54 def log_exc(self,message):
55 self.error("%s BEG TRACEBACK"%message+"\n"+traceback.format_exc().strip("\n"))
56 self.error("%s END TRACEBACK"%message)
58 def log_exc_critical(self,message):
59 self.critical("%s BEG TRACEBACK"%message+"\n"+traceback.format_exc().strip("\n"))
60 self.critical("%s END TRACEBACK"%message)
62 # for investigation purposes, can be placed anywhere
63 def log_stack(self,message):
64 to_log="".join(traceback.format_stack())
65 self.debug("%s BEG STACK"%message+"\n"+to_log)
66 self.debug("%s END STACK"%message)
68 sfa_logger=_SfaLogger(logfile='/var/log/sfa.log')
69 sfa_import_logger=_SfaLogger(logfile='/var/log/sfa_import.log')
70 console_logger=_SfaLogger()
72 ########################################
77 Prints the runtime of the specified callable. Use as a decorator, e.g.,
83 def logger_profile(callable):
84 def wrapper(*args, **kwds):
86 result = callable(*args, **kwds)
89 args += ["%s = %s" % (name, str(value)) for (name, value) in kwds.items()]
90 # should probably use debug, but then debug is not always enabled
91 logger.info("PROFILED %s (%s): %.02f s" % (callable.__name__, ", ".join(args), end - start))
97 if __name__ == '__main__':
98 print 'testing sfalogging into logger.log'
99 logger=_SfaLogger('logger.log')
100 logger.critical("logger.critical")
101 logger.error("logger.error")
102 logger.warning("logger.warning")
103 logger.info("logger.info")
104 logger.debug("logger.debug")
105 logger.setLevel(logging.DEBUG)
106 logger.debug("logger.debug again")
108 @profile(console_logger)
109 def sleep(seconds = 1):
113 console_logger.info('console.info')
115 console_logger.setLevel(logging.DEBUG)