#!/usr/bin/python
-import os
+import os, sys
import traceback
import logging, logging.handlers
-class SfaLogging:
- def __init__ (self,logfile,name=None,level=logging.INFO):
- # default is to locate logger name from the logfile
- if not name:
- name=os.path.basename(logfile)
- self.logger=logging.getLogger(name)
- self.logger.setLevel(level)
+CRITICAL=logging.CRITICAL
+ERROR=logging.ERROR
+WARNING=logging.WARNING
+INFO=logging.INFO
+DEBUG=logging.DEBUG
+
+# a logger that can handle tracebacks
+class _SfaLogger:
+ def __init__ (self,logfile=None,loggername=None,level=logging.INFO):
+ # default is to locate loggername from the logfile if avail.
+ if not logfile:
+ #loggername='console'
+ #handler=logging.StreamHandler()
+ #handler.setFormatter(logging.Formatter("%(levelname)s %(message)s"))
+ logfile = "/var/log/sfa.log"
+
+ if not loggername:
+ loggername=os.path.basename(logfile)
try:
handler=logging.handlers.RotatingFileHandler(logfile,maxBytes=1000000, backupCount=5)
except IOError:
tmplogfile=os.getenv("TMPDIR", "/tmp") + os.path.sep + os.path.basename(logfile)
handler=logging.handlers.RotatingFileHandler(tmplogfile,maxBytes=1000000, backupCount=5)
handler.setFormatter(logging.Formatter("%(asctime)s - %(levelname)s - %(message)s"))
+ self.logger=logging.getLogger(loggername)
+ self.logger.setLevel(level)
self.logger.addHandler(handler)
-
- def wrap(fun):
- def wrapped(self,msg,*args,**kwds):
- native=getattr(self.logger,fun.__name__)
- return native(msg,*args,**kwds)
- #wrapped.__doc__=native.__doc__
- return wrapped
+ self.loggername=loggername
def setLevel(self,level):
self.logger.setLevel(level)
- @wrap
- def critical(): pass
- @wrap
- def error(): pass
- @wrap
- def warning(): pass
- @wrap
- def info(): pass
- @wrap
- def debug(): pass
-
+ # shorthand to avoid having to import logging all over the place
+ def setLevelDebug(self):
+ self.logger.setLevel(logging.DEBUG)
+
+ # define a verbose option with s/t like
+ # parser.add_option("-v", "--verbose", action="count", dest="verbose", default=0)
+ # and pass the coresponding options.verbose to this method to adjust level
+ def setLevelFromOptVerbose(self,verbose):
+ if verbose==0:
+ self.logger.setLevel(logging.WARNING)
+ elif verbose==1:
+ self.logger.setLevel(logging.INFO)
+ elif verbose==2:
+ self.logger.setLevel(logging.DEBUG)
+
+ ####################
+ def info(self, msg):
+ self.logger.info(msg)
+
+ def debug(self, msg):
+ self.logger.debug(msg)
+
+ def warn(self, msg):
+ self.logger.warn(msg)
+
+ def error(self, msg):
+ self.logger.error(msg)
+
+ def critical(self, msg):
+ self.logger.critical(msg)
+
# logs an exception - use in an except statement
def log_exc(self,message):
self.error("%s BEG TRACEBACK"%message+"\n"+traceback.format_exc().strip("\n"))
self.debug("%s BEG STACK"%message+"\n"+to_log)
self.debug("%s END STACK"%message)
-sfa_logger=SfaLogging(logfile='/var/log/sfa.log')
-sfa_import_logger=SfaLogging(logfile='/var/log/sfa_import.log')
+info_logger = _SfaLogger(loggername='info', level=logging.INFO)
+debug_logger = _SfaLogger(loggername='debug', level=logging.DEBUG)
+warn_logger = _SfaLogger(loggername='warning', level=logging.WARNING)
+error_logger = _SfaLogger(loggername='error', level=logging.ERROR)
+critical_logger = _SfaLogger(loggername='critical', level=logging.CRITICAL)
+logger = info_logger
########################################
import time
-def profile(callable):
+def profile(logger):
"""
Prints the runtime of the specified callable. Use as a decorator, e.g.,
-
- @profile
- def foo(...):
- ...
-
- Or, equivalently,
-
- def foo(...):
- ...
- foo = profile(foo)
-
- Or inline:
-
- result = profile(foo)(...)
+
+ @profile(logger)
+ def foo(...):
+ ...
"""
+ def logger_profile(callable):
+ def wrapper(*args, **kwds):
+ start = time.time()
+ result = callable(*args, **kwds)
+ end = time.time()
+ args = map(str, args)
+ args += ["%s = %s" % (name, str(value)) for (name, value) in kwds.iteritems()]
+ # should probably use debug, but then debug is not always enabled
+ logger.info("PROFILED %s (%s): %.02f s" % (callable.__name__, ", ".join(args), end - start))
+ return result
+ return wrapper
+ return logger_profile
- def wrapper(*args, **kwds):
- start = time.time()
- result = callable(*args, **kwds)
- end = time.time()
- args = map(str, args)
- args += ["%s = %s" % (name, str(value)) for (name, value) in kwds.items()]
- sfa_logger.debug("%s (%s): %.02f s" % (callable.__name__, ", ".join(args), end - start))
- return result
-
- return wrapper
if __name__ == '__main__':
print 'testing sfalogging into logger.log'
- global sfa_logger
- sfa_logger=SfaLogging('logger.log')
- sfa_logger.critical("logger.critical")
- sfa_logger.error("logger.error")
- sfa_logger.warning("logger.warning")
- sfa_logger.info("logger.info")
- sfa_logger.debug("logger.debug")
- sfa_logger.setLevel(logging.DEBUG)
- sfa_logger.debug("logger.debug again")
-
- @profile
+ logger=_SfaLogger('logger.log')
+ logger.critical("logger.critical")
+ logger.error("logger.error")
+ logger.warning("logger.warning")
+ logger.info("logger.info")
+ logger.debug("logger.debug")
+ logger.setLevel(logging.DEBUG)
+ logger.debug("logger.debug again")
+
+
+ @profile(my_logger)
def sleep(seconds = 1):
time.sleep(seconds)
- sleep(1)
+ my_logger.info('console.info')
+ sleep(0.5)
+ my_logger.setLevel(logging.DEBUG)
+ sleep(0.25)
+