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#
# anaconda_log.py: Support for logging to multiple destinations with log
# levels.
#
# Chris Lumens <clumens@redhat.com>
# Matt Wilson <msw@redhat.com>
# Michael Fulbright <msf@redhat.com>
#
# Copyright 2000-2002,2005 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import sys
import logging
from logging.handlers import SysLogHandler, SYSLOG_UDP_PORT
DEFAULT_LEVEL = logging.INFO
logFile = "/tmp/anaconda.log"
logLevelMap = {"debug": logging.DEBUG, "info": logging.INFO,
"warning": logging.WARNING, "error": logging.ERROR,
"critical": logging.CRITICAL}
# Base class for logger instances. This is what will be created any time
# someone calls logging.getLogger("whatever"). We need this class to
# provide the setHandlersLevel function.
class LoggerClass(logging.Logger):
# Set the level of all handlers attached to a logger, except those
# with the autoSetLevel=False attribute.
def setHandlersLevel(self, level):
map(lambda hdlr: hdlr.setLevel(level),
filter (lambda hdlr: hasattr(hdlr, "autoSetLevel") and hdlr.autoSetLevel, self.handlers))
# Specialized addHandler that also adds the autoSetLevel attribute.
def addHandler(self, hdlr, autoSetLevel=True):
setattr(hdlr, "autoSetLevel", autoSetLevel)
logging.Logger.addHandler(self, hdlr)
class AnacondaLog:
def __init__ (self, minLevel=DEFAULT_LEVEL):
# Create the base of the logger hierarcy.
self.logger = logging.getLogger("anaconda")
self.logger.setLevel(logging.DEBUG)
# Add a handler for the log file.
self.addFileHandler (logFile, logging.getLogger("anaconda"),
autoSetLevel=False, minLevel=logging.DEBUG)
# Create a second logger for just the stuff we want to dup on
# stdout. Anything written here will also get passed up to the
# parent loggers for processing and possibly be written to the
# log.
self.stdoutLogger = logging.getLogger("anaconda.stdout")
self.stdoutLogger.setLevel(logging.INFO)
# Add a handler for the duped stuff. No fancy formatting, thanks.
self.addFileHandler (sys.stdout, self.stdoutLogger,
fmtStr="%(message)s", minLevel=logging.INFO)
# Add a simple handler - file or stream, depending on what we're given.
def addFileHandler (self, file, addToLogger, minLevel=DEFAULT_LEVEL,
fmtStr="%(asctime)s %(levelname)-8s: %(message)s",
autoSetLevel=True):
if type (file) == type ("string"):
logfileHandler = logging.FileHandler(file)
else:
logfileHandler = logging.StreamHandler(file)
logfileHandler.setLevel(minLevel)
logfileHandler.setFormatter (logging.Formatter (fmtStr, "%H:%M:%S"))
addToLogger.addHandler(logfileHandler, autoSetLevel=autoSetLevel)
# Add another logger to the hierarchy. For best results, make sure
# name falls under anaconda in the tree.
def addLogger (self, name, minLevel=DEFAULT_LEVEL):
newLogger = logging.getLogger(name)
newLogger.setLevel(minLevel)
# Add a handler for remote syslogs.
def addSysLogHandler (self, logger, host, port=SYSLOG_UDP_PORT,
minLevel=DEFAULT_LEVEL):
fmt = logging.Formatter("%(levelname)-8s %(message)s")
syslogHandler = SysLogHandler((host, port))
syslogHandler.setLevel(minLevel)
syslogHandler.setFormatter(fmt)
logger.addHandler(syslogHandler)
# Set base class for logger instances.
logging.setLoggerClass(LoggerClass)
logger = AnacondaLog()
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