/*
 ** Rachel  - Resource Loading Toolkit for Web Start/JNLP
 ** Copyright (c) 2001, 2002 by Gerald Bauer
 **
 ** This program is free software.
 **
 ** You may redistribute it and/or modify it under the terms of the GNU
 ** General Public License as published by the Free Software Foundation.
 ** Version 2 of the license should be included with this distribution in
 ** the file LICENSE, as well as License.html. If the license is not
 ** included with this distribution, you may find a copy at the FSF web
 ** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
 ** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
 **
 ** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
 ** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
 ** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
 ** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
 ** REDISTRIBUTION OF THIS SOFTWARE.
 **
 */

package rachel.util;

import java.net.InetAddress;
import java.net.UnknownHostException;

import org.apache.log4j.Logger;

public class NetUtils

{
	static Logger Status = Logger.getLogger(NetUtils.class);
	/**
	 * cache local host name
	 */
	private static String _localHostName = null;

	public static String getLocalHostName() {
		if (_localHostName == null) {
			try {
				_localHostName = InetAddress.getLocalHost().getHostName();
			} catch (UnknownHostException e) {
				Status.error("*** failed to get local host name: "
						+ e.toString());
				// use loopback host address if all else fails
				_localHostName = "127.0.0.1";
			}
		}

		return _localHostName;
	}
}