package us.daveread.utility.formatcheck.format;

 import org.apache.log4j.Logger;

 /**

  * <p>Title: EmailDataType

  * <p>Description: Represents a data type that may hold an email address

  * <p>Copyright: Copyright (c) 2005

  * <p>This program 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 2 of the License, or

  * (at your option) any later version.

  * <p>This program 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 General Public License for more details.

  * <p>You should have received a copy of the GNU General Public License

  * along with this program; if not, write to the Free Software

  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  * </p>

  *

  * @author David Read

  * @version $Id: EmailDataType.java,v 1.2 2006/06/14 23:32:14 daveread Exp $

  */

 public class EmailDataType extends DataType {

     /** Regular expression matching a valid email address

      * Source: http://www.regexlib.com/REDetails.aspx?regexp_id=295 */

     private final static String EMAILREGEX =

             "^(([A-Za-z0-9]+_+)|([A-Za-z0-9]+\\-+)|([A-Za-z0-9]+\\.+)|" +

             "([A-Za-z0-9]+\\++))*[A-Za-z0-9]+@((\\w+\\-+)|(\\w+\\.))*" +

             "\\w{1,63}\\.[a-zA-Z]{2,6}$";

     /** Logger */

     private static final Logger logger = Logger.getLogger(EmailDataType.class);

     /**

      * Creates an Email/SSO data type with the supplied description.

      *

      * @param aDescription String The display description for this date type

      */

     public EmailDataType(String aDescription) {

         super(null, aDescription);

         setTypeName("Email");

         logger.info("Create email data type:aDescription[" +

                     aDescription + "] typeName[" + getTypeName() + "]");

     }

     /**

      * Tests whether the field value is a proper email address or SSO id.

      *

      * @param fieldValue String The value being checked

      *

      * @return boolean True if the field is valid, false otherwise

      */

     public boolean isValid(String fieldValue) {

         boolean okay;

         okay = false;

         fieldValue = fieldValue.trim();

         if (fieldValue != null) {

             if (fieldValue.matches(EMAILREGEX)) {

                 okay = true;

             }

         }

         return okay;

     }

 }