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 package org.apidesign.impl.security.extension;

 import org.apidesign.impl.security.friendapi.DigestImplementation;

 import org.apidesign.impl.security.friendapi.DigestProvider;

 import java.nio.ByteBuffer;

 import java.security.MessageDigest;

 import java.security.NoSuchAlgorithmException;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 /**

  *

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

  */

 public class BridgeToOldAlgorithmsProvider implements DigestProvider {

     public DigestImplementation create(String algorithm) {

         try {

             final MessageDigest md = MessageDigest.getInstance(algorithm);

             return new DigestImplementation(algorithm) {

                 @Override

                 public void update(ByteBuffer bb) {

                     md.update(bb);

                 }

                 @Override

                 public byte[] digest() {

                     return md.digest();

                 }

             };

         } catch (NoSuchAlgorithmException ex) {

             Logger.getLogger(BridgeToOldAlgorithmsProvider.class.getName()).log(Level.INFO, null, ex);

             return null;

         }

     }

     static {

         new BridgeToOld();

     }

 }