content: //  Copyright 2006, Clark N. Hobbie
  //
  //  This file is part of the util library.
  //
  //  The util library is free software; you can redistribute it and/or modify it
  //  under the terms of the Lesser GNU General Public License as published by
  //  the Free Software Foundation; either version 2.1 of the License, or (at
  //  your option) any later version.
  //
  //  The util 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 Lesser GNU General Public
  //  License for more details.
  //
  //  You should have received a copy of the Lesser GNU General Public License
  //  along with the util library; if not, write to the Free Software Foundation,
  //  Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  //
  /*
   * Copyright (c) 2003 by Long Term Software, LLC.  All rights reserved.
   */
  package com.lts.logging;
  
  /**
   * @author cnh
   */
  public class LoggerFactory 
  {
  	protected static Logger ourLogger;
  	protected static NullLogger ourNullLogger = new NullLogger();
  	protected static LoggerFactory ourInstance = new LoggerFactory();
  	
  	protected LoggerFactory()
  	{
  		initialize();
  	}
  	
  	public static LoggerFactory getInstance()
  	{
  		return ourInstance;
  	}
  	
  	public void initialize ()
  	{
  		createOurLogger();
  	}
  
  	public Logger getLogger (int minSeverity, boolean returnNull)
  	{
  		if (minSeverity >= ourLogger.getLoggingSeverity())
  			return ourLogger;
  		if (returnNull)
  			return null;
  		else
  			return ourNullLogger;
  	}
  	
  	public Logger getLogger (int minSeverity)
  	{
  		return getLogger(minSeverity, true);
  	}
  	
  	
  	protected static synchronized void createOurLogger()
  	{
  		if (null == ourLogger)
  			ourLogger = new SystemErrLogger();
  	}
  	
  	
  	public Logger getLogger()
  	{
  		return ourLogger;
  	}
  	
  	
  	public void setLogger(Logger logger)
  	{
  		ourLogger = logger;
  	}
  	
  	
  }
  