odl-pipeline/lib/utils/utils_log.py

   1 #
   2 # Copyright (c) 2015 All rights reserved
   3 # This program and the accompanying materials
   4 # are made available under the terms of the Apache License, Version 2.0
   5 # which accompanies this distribution, and is available at
   6 #
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 #
  10 import logging
  11 import datetime
  12 import os
  13 import sys
  14
  15 LOG = logging.getLogger(__name__)
  16 LOG_LEVEL = logging.DEBUG
  17 LOG_PATH = "./tmp/%s.log" % os.path.basename(sys.argv[0])
  18 logging.basicConfig(format='%(asctime)s %(levelname)s: %(message)s',
  19                     filename=LOG_PATH, level=LOG_LEVEL)
  20 #                    datefmt='%Y-%m-%dT:%H:%M:%s', level=LOG_LEVEL)
  21 console = logging.StreamHandler()
  22 console.setLevel(logging.INFO)
  23 formatter = logging.Formatter('%(asctime)s %(levelname)s: %(message)s')
  24 console.setFormatter(formatter)
  25 LOG.addHandler(console)
  26
  27
  28 def log_enter_exit(func):
  29
  30     def inner(self, *args, **kwargs):
  31         LOG.debug(("Entering %(cls)s.%(method)s "
  32                    "args: %(args)s, kwargs: %(kwargs)s") %
  33                   {'cls': self.__class__.__name__,
  34                    'method': func.__name__,
  35                    'args': args,
  36                    'kwargs': kwargs})
  37         start = datetime.datetime.now()
  38         ret = func(self, *args, **kwargs)
  39         end = datetime.datetime.now()
  40         LOG.debug(("Exiting %(cls)s.%(method)s. "
  41                    "Spent %(duration)s sec. "
  42                    "Return %(return)s") %
  43                   {'cls': self.__class__.__name__,
  44                    'duration': end - start,
  45                    'method': func.__name__,
  46                    'return': ret})
  47         return ret
  48     return inner
  49
  50
  51 def for_all_methods(decorator):
  52     # @for_all_methods(log_enter_exit)
  53     # class ...
  54
  55     def decorate(cls):
  56         for attr in cls.__dict__:
  57             if callable(getattr(cls, attr)):
  58                 setattr(cls, attr, decorator(getattr(cls, attr)))
  59         return cls
  60     return decorate
  61
  62
  63 def dict_to_nice_string(dict):
  64     return_string = []
  65     for key, value in dict.iteritems():
  66         return_string.append('%s: %s' % (key, value))
  67     return ', '.join(return_string)