datavalidator.java

java 写的一个新闻发布系统

//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//                 . . . i n   j a h i a   w e   t r u s t . . .
//

//
//  DataValidator
//  MJ      08.01.2001
//
//

package org.jahia.utils;

import org.apache.regexp.RE;
import org.apache.regexp.RESyntaxException;
import org.jahia.exceptions.JahiaException;



/**
 * Utility class for data validation.
 *
 * @author MJ
 */


public class DataValidator
{
    
    private static RE emailRE;
    
    static {
        try {
            emailRE = new RE("^[\\w\\-\\._=\\!#\\*\\+]+@((([\\w\\-]+\\.)+[a-zA-Z]{2,3})|localhost)$");
        } catch (RESyntaxException e) {
	        String errorMsg = "RE exception : " + e.getMessage();
	        JahiaConsole.println( "DataValidator", errorMsg );
        }
    }

    /**
     * Checks whether an email address is valid.
     *
     * @param email The email address to check.
     * @return      Whether the email is valid.
     */
    public static boolean isValidEmail (String email)
    {
        return (email != null && emailRE.match(email));
    }

}