1   package org.displaytag.decorator;
    2   
    3   import org.apache.commons.lang.StringUtils;
    4   import org.displaytag.exception.DecoratorException;
    5   
    6   
    7   /**
    8    * A column decorator which returns 100/value with padding of spaces.
    9    * @author Fabrizio Giustina
   10    * @version $Revision: 727 $ ($Author: fgiust $)
   11    */
   12   public class PercentualColumnDecorator implements ColumnDecorator
   13   {
   14   
   15       /**
   16        * @see org.displaytag.decorator.ColumnDecorator#decorate(java.lang.Object)
   17        */
   18       public String decorate(Object columnValue) throws DecoratorException
   19       {
   20           int intValue = ((Number) columnValue).intValue();
   21           if (intValue == 0)
   22           {
   23               intValue = 1;
   24           }
   25           return StringUtils.leftPad(Integer.toString(100 / intValue), 3);
   26       }
   27   
   28   }