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bdlogging.py
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Tue, Aug 13, 03:18

bdlogging.py
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#!/usr/bin/env python3
from __future__ import print_function
import logging
import traceback
import os
################################################################
def invalidPrint(x):
raise Exception('print should not be used in that class: '
'use the logging system instead: "{0}"'.format(x))
################################################################
file_handler = None
def setFileHandler(logger, streamformatter):
if globals()['file_handler'] is None:
# print("resetting the file for {0}".format(logger.name))
f = open('bd.log', 'w')
f.close()
globals()['file_handler'] = logging.FileHandler('bd.log')
file_handler = globals()['file_handler']
file_handler.setFormatter(streamformatter)
if file_handler not in logger.handlers:
logger.addHandler(file_handler)
################################################################
Parent = logging.getLoggerClass()
class BDlogger(Parent):
def __init__(self, name):
super().__init__(name)
self.name = name
self.logger_screen = Parent(name + 'screen')
self.logger_file = Parent(name + 'file')
self.streamformatter = logging.Formatter(
fmt='%(levelname)s:%(foo)50s:%(f)15s:%(l)s:' +
' '*10 + '%(message)s')
self.screen_handler = logging.StreamHandler()
self.screen_handler.setFormatter(self.streamformatter)
self.logger_screen.addHandler(self.screen_handler)
self.enable_file = False
self.setScreenLevel(logging.INFO)
def setLogFileLevel(self, level):
self.logger_file.setLevel(level)
def setScreenLevel(self, level):
self.logger_screen.setLevel(level)
def activateFileLog(self, level=logging.DEBUG):
setFileHandler(self.logger_file, self.streamformatter)
self.enable_file = True
self.setLogFileLevel(level)
def getExtra(self):
extra = {}
tr = traceback.extract_stack(limit=3)
tr = tr[0]
fname = os.path.basename(tr[0])
extra['foo'] = tr[2]
extra['f'] = fname
extra['l'] = tr[1]
return extra
def debug(self, x, *args, **kwargs):
self.logger_screen.debug(x, extra=self.getExtra())
if self.enable_file is True:
self.logger_file.debug(x, extra=self.getExtra())
def warning(self, x, *args, **kwargs):
self.logger_screen.warning(x, extra=self.getExtra())
if self.enable_file is True:
self.logger_file.warning(x, extra=self.getExtra())
def info(self, x, *args, **kwargs):
self.logger_screen.info(x, extra=self.getExtra())
if self.enable_file is True:
self.logger_file.info(x, extra=self.getExtra())
def error(self, x, *args, **kwargs):
self.logger_screen.error(x, extra=self.getExtra())
if self.enable_file is True:
self.logger_file.error(x, extra=self.getExtra())
def __repr__(self):
return str(self.logger_file) + " " + str(self.logger_screen)
################################################################
logging.setLoggerClass(BDlogger)
################################################################
logger = logging.getLogger(__name__)
################################################################
def activateFileLogging():
for name, log in logging.Logger.manager.loggerDict.items():
if isinstance(log, BDlogger):
log.activateFileLog()
__all__ = ["bdlogging"]

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