guiloghandler.java

java语言开发的P2P流媒体系统

/* 
 * P2P-Radio - Peer to peer streaming system
 * Project homepage: http://p2p-radio.sourceforge.net/
 * Copyright (C) 2003-2004 Michael Kaufmann <[e-mail]>
 * 
 * ---------------------------------------------------------------------------
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * ---------------------------------------------------------------------------
 */

package p2pradio.gui;

import java.awt.EventQueue;
import java.util.logging.*;
import javax.swing.JTextArea;
import javax.swing.JTextPane;


/**
 * This log {@link java.util.logging.Handler} appends
 * all log messages to a {@link javax.swing.JTextArea}.
 * 
 * @author Michael Kaufmann
 */
public class GUILogHandler extends Handler
{
	private boolean isClosed = false;
	private JTextArea textArea;
	
	public GUILogHandler(JTextArea textArea)
	{
		super();
		this.textArea = textArea;
	}
	
	public void publish(LogRecord record)
	{
		if (isClosed)
		{
			return;
		}
		
		if (getFilter() != null)
		{
			if (!getFilter().isLoggable(record))
			{
				return;
			}
		}
		
		String message;
		
		if (getFormatter() != null)
		{
			message = getFormatter().format(record);
		}
		else
		{
			message = record.getMessage();
		}
		
		EventQueue.invokeLater(new EventAdder(message, textArea));
	}

	public void flush()
	{
	}

	public void close() throws SecurityException
	{
		isClosed = true;
	}
}