src-main.org.awakefw.sql.jdbc.util.JdbcUtil Maven / Gradle / Ivy

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/*
 * This file is part of Awake SQL. 
 * Awake SQL: Remote JDBC access over HTTP.                                    
 * Copyright (C) 2013,  KawanSoft SAS
 * (http://www.kawansoft.com). All rights reserved.                    
 *                                                                         
 * Awake SQL 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 3 of the License, or
 * (at your option) any later version.         
 *              
 * Awake SQL 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          
 * Lesser General Public License for more details.       
 *                                  
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see .
 *
 * If you develop commercial activities using Awake SQL, you must: 
 * a) disclose and distribute all source code of your own product,
 * b) license your own product under the GNU General Public License.
 * 
 * You can be released from the requirements of the license by
 * purchasing a commercial license. Buying such a license will allow you 
 * to ship Awake SQL with your closed source products without disclosing 
 * the source code.
 *
 * For more information, please contact KawanSoft SAS at this
 * address: [email protected]
 * 
 * Any modifications to this file must keep this entire header
 * intact.
 */
package org.awakefw.sql.jdbc.util;

import java.net.InetAddress;
import java.net.NetworkInterface;

/**
 * @author Nicolas de Pomereu
 * 
 */
public class JdbcUtil {

    protected JdbcUtil() {

    }

    /**
     * Returns the computer MAC address in 5C-26-0A-88-4E-DA format.
     * 
     * @return the name or "00" if the MAC address cannot be found
     */

    public static String getMacAddress() {

	String macAddress = null;

	try {
	    InetAddress ip = InetAddress.getLocalHost();

	    NetworkInterface network = NetworkInterface.getByInetAddress(ip);

	    if (network == null) {
		macAddress = "00";
		return macAddress;
	    }

	    byte[] mac = network.getHardwareAddress();

	    if (mac == null) {
		macAddress = "00";
		return macAddress;
	    }

	    StringBuilder sb = new StringBuilder();
	    for (int i = 0; i < mac.length; i++) {
		sb.append(String.format("%02X%s", mac[i],
			(i < mac.length - 1) ? "-" : ""));
	    }

	    macAddress = sb.toString();
	    return macAddress;
	} catch (Exception e) {
	    macAddress = "00";
	    return macAddress;
	}

    }

}