/src/com/dc/musicmaster/DataValidation.java

package com.dc.musicmaster;



import java.util.regex.Matcher;

import java.util.regex.Pattern;



/**

 * this Class validates the Email input

 * @author D.Kos

 *

 */

public class DataValidation {

	@SuppressWarnings("unused")

	private Pattern pattern;

	@SuppressWarnings("unused")

	private Matcher matcher;



	/** the Pattern with Email Regular Expression */

	public static final Pattern VALID_EMAIL_ADDRESS_REGEX = 

		    Pattern.compile("^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"

		    		, Pattern.CASE_INSENSITIVE);		



	

	/**

	 * Validates User Email with RegularExpressions

	 * @param emailStr

	 * @return true (ONLY if Matches Pattern)

	 */

	public static boolean validateEmail(String emailStr) {

		Matcher matcher = VALID_EMAIL_ADDRESS_REGEX.matcher(emailStr);

		return matcher.find();

	}



}