/*

  * To change this template, choose Tools | Templates

  * and open the template in the editor.

  */

 package test;

 import java.nio.ByteBuffer;

 import org.apidesign.spi.security.Digestor;

 /**

  *

  * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  */

 // BEGIN: day.end.bridges.CountingDigestor

 public final class CountingDigestor extends Digestor<int[]> {

     @Override

     protected byte[] digest(int[] data) {

         int i = data[0];

         byte[] arr = { 

             (byte) (i & 255), 

             (byte) ((i >> 8) & 255), 

             (byte) ((i >> 16) & 255), 

             (byte) ((i >> 24) & 255) 

         };

         return arr;

     }

     @Override

     protected int[] create(String algorithm) {

         return "cnt".equals(algorithm) ? new int[1] : null;

     }

     @Override

     protected void update(int[] data, ByteBuffer input) {

         data[0] += input.remaining();

         input.position(input.position() + input.remaining());

     }

 }

 // END: day.end.bridges.CountingDigestor