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'''
MDANSE : Molecular Dynamics Analysis for Neutron Scattering Experiments
------------------------------------------------------------------------------------------
Copyright (C)
2015- Eric C. Pellegrini Institut Laue-Langevin
BP 156
6, rue Jules Horowitz
38042 Grenoble Cedex 9
France
pellegrini[at]ill.fr
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Created on Mar 23, 2015
@author: pellegrini
'''
import logging
from MDANSE.Core.Singleton import Singleton
from MDANSE.Framework.Logging.Formatters import Formatter
class Logger(object):
__metaclass__ = Singleton
levels = {"debug" : logging.DEBUG,
"info" : logging.INFO,
"warning" : logging.WARNING,
"error" : logging.ERROR,
"fatal" : logging.CRITICAL,
"critical" : logging.FATAL
}
def __call__(self,message,level="info",loggers=None):
lvl = Logger.levels.get(level,None)
# If the logging level is unkwnown, skip that log
if lvl is None:
return
if loggers is None:
loggers=logging.Logger.manager.loggerDict.keys()
else:
loggers = [n for n in loggers if logging.Logger.manager.loggerDict.has_key(n)]
for n in loggers:
logging.getLogger(n).log(lvl,message)
def start(self, loggers=None):
if loggers is None:
loggers=logging.Logger.manager.loggerDict.keys()
else:
loggers = [n for n in loggers if logging.Logger.manager.loggerDict.has_key(n)]
for n in loggers:
logging.getLogger(n).disabled=False
def stop(self, loggers=None):
if loggers is None:
loggers=logging.Logger.manager.loggerDict.keys()
else:
loggers = [n for n in loggers if logging.Logger.manager.loggerDict.has_key(n)]
for n in loggers:
logging.getLogger(n).disabled=True
def set_level(self,level,loggers=None):
lvl = Logger.levels.get(level,None)
if lvl is None:
return
if loggers is None:
loggers = logging.Logger.manager.loggerDict.keys()
else:
loggers = [n for n in loggers if logging.Logger.manager.loggerDict.has_key(n)]
for loggerName in loggers:
logging.getLogger(loggerName).setLevel(lvl)
def add_handler(self,name,handler,level="error",start=True):
if logging.Logger.manager.loggerDict.has_key(name):
return
handler.setFormatter(Formatter())
logging.getLogger(name).addHandler(handler)
logging.getLogger(name).disabled = not start
self.set_level(level,loggers=[name])