import os, sys
import traceback

import IECore


class Logging :
	
	LogLevel = IECore.Enum.Create( "NoLog", "Info", "Warning", "Error", "Debug", "VerboseDebug" )
	
	def __init__( self ) :
	
		# private members and methods use the "__" prefix
		self.__level = Logging.LogLevel.NoLog
		
		# protected members and methods use the "_" prefix
		self._initialized = True
		
		# public members and methods do not use a prefix
		self.previousLogLevel = None
	
	## This is the method description. As with C++, methods and arguments have lowerCamelCase names
	# and do not include under_scores.
	def logMessage( self, someLevel, msg ) :
	
		if ( someLevel > self.__level ) :
			## \todo This is how to mark changes that need to take place at some point
			# in the future. Do not commit test/broken code that is commented out. Instead
			# leave it out and add a todo.
			sys.stderr.write( msg )
	
	def setLogLevel( self, level ) :
		
		self.previousLogLevel = self.__level
		self.__level = level
		
	def getLogLevel( self ) :
	
		return self.__level