/**
 * 
 */
package de.fhswf.in.inf.fit.aufgabe4;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;

/**
 * Handler for the repeat tag.
 *
 * @author Stefan Suhren
 * @version 1.0
 */
public class Repeat extends BodyTagSupport
{
   /**
    * Required attribute for {@link BodyTagSupport}.
    */
   private static final long serialVersionUID = 1L;

   /**
    * The number of times the Body will be printed.
    */
   private int times = 0;

   /**
    * Getter for property times.
    * 
    * @return Returns the times.
    */
   public int getTimes()
   {
      return times;
   }

   /**
    * Setter for property times.
    *
    * @param times
    *           The times to set.
    */
   public void setTimes(int times)
   {
      this.times = times;
   }

   /*
    * Make sure that the input body will be printed.
    * 
    * @see javax.servlet.jsp.tagext.BodyTagSupport#doStartTag()
    */
   @Override
   public int doStartTag() throws JspException
   {
      if (times <= 0)
      {
         return SKIP_BODY;
      }
      else
      {
         return EVAL_BODY_INCLUDE;
      }
   }

   /*
    * Repeat the body a given time.
    * 
    * @see javax.servlet.jsp.tagext.BodyTagSupport#doAfterBody()
    */
   @Override
   public int doAfterBody() throws JspException
   {
      if (--times > 0)
      {
         return EVAL_BODY_AGAIN;
      }
      else
      {
         return SKIP_BODY;
      }
   }
}