org.sdmxsource.util.email.EmailValidation Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of SdmxSourceUtil Show documentation
Open source reference implementation of SDMX
The newest version!
/*******************************************************************************
 * Copyright (c) 2013 Metadata Technology Ltd.
 *
 * All rights reserved. This program and the accompanying materials are made 
 * available under the terms of the GNU Lesser General Public License v 3.0 
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 *
 * This file is part of the SDMX Component Library.
 *
 * The SDMX Component Library is free software: you can redistribute it and/or 
 * modify it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * The SDMX Component Library 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 The SDMX Component Library If not, see 
 * http://www.gnu.org/licenses/lgpl.
 *
 * Contributors:
 * Metadata Technology - initial API and implementation
 ******************************************************************************/
package org.sdmxsource.util.email;

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

/**
 * The type Email validation.
 */
public class EmailValidation {

    // A legal e-mail address is defined as conforming to the following Regular Expression.
    private final static Pattern p = 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])?");

    /**
     * Validate email boolean.
     *
     * @param email the email
     * @return the boolean
     */
    public static boolean validateEmail(String email) {
        if (email == null) {
            // Null is not a valid e-mail address
            return false;
        }

        // Convert the email address to lower case and obtain a Matcher
        Matcher m = p.matcher(email.toLowerCase());

        // Return whether a match is found
        return m.matches();
    }
}