/*

  * Copyright 2005-2008 The Kuali Foundation

  * 

  * Licensed under the Educational Community License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  * 

  * http://www.opensource.org/licenses/ecl2.php

  * 

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.kuali.rice.core.web.format;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.util.RiceKeyConstants;

 /**

  * This class is used to format Long objects.

  */

 public class LongFormatter extends Formatter {

     private static final long serialVersionUID = -926525576380295384L;

     /**

      * Returns an object representation of the provided string.

      */

     protected Object convertToObject(String string) {

         if (StringUtils.isEmpty(string))

             return null;

         try {

             return new Long(string);

         }

         catch (NumberFormatException e) {

             throw new FormatException("parsing", RiceKeyConstants.ERROR_LONG, string, e);

         }

     }

     /**

      * Returns the provided value as a formatted string

      */

     public Object format(Object value) {

         return (value == null ? null : value.toString());

     }

 }