IPAddressValidator.java

/*******************************************************************************
 * ===========================================================
 * Ankush : Big Data Cluster Management Solution
 * ===========================================================
 * 
 * (C) Copyright 2014, by Impetus Technologies
 * 
 * This is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License (LGPL v3) as
 * published by the Free Software Foundation;
 * 
 * This software 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 Lesser General Public License 
 * along with this software; if not, write to the Free Software Foundation, 
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 ******************************************************************************/
/**
 * 
 */
package com.impetus.ankush.common.utils.validator;

/**
 * @author Akhil
 *
 */

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * The Class IPAddressValidator.
 */
public class IPAddressValidator {
	
	/** The pattern. */
	private static Pattern pattern;
	
	/** The matcher. */
	private static Matcher matcher;
	 
	/** The Constant IPADDRESS_PATTERN. */
	private static final String IPADDRESS_PATTERN = 
			"^([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." +
			"([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." +
			"([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." +
			"([01]?\\d\\d?|2[0-4]\\d|25[0-5])$";
	 
	/**
	 * Validate ip address with regular expression.
	 *
	 * @param ip ip address for validation
	 * @return true valid ip address, false invalid ip address
	 */
	public static boolean validate(String ip){
		pattern = Pattern.compile(IPADDRESS_PATTERN);
		matcher = pattern.matcher(ip);
		return matcher.matches();    	    
	}
}