# HG changeset patch
# User Jaroslav Tulach <jtulach@netbeans.org>
# Date 1213429906 -7200
# Node ID 8f9ed9c4a97b9af1d019fdc694b21e4054384123
# Parent  1b1a4a203bf26b5c7c22ddce337a780a9557def2
spi part

diff -r 1b1a4a203bf2 -r 8f9ed9c4a97b samples/messagedigest/src/api/Digest.java
--- a/samples/messagedigest/src/api/Digest.java	Sat Jun 14 09:51:45 2008 +0200
+++ b/samples/messagedigest/src/api/Digest.java	Sat Jun 14 09:51:46 2008 +0200
@@ -1,13 +1,19 @@
 
 package api;
 
+import java.nio.ByteBuffer;
+import spi.DigestImplementation;
+
 /** MessageDigest extends MessageDigestSpi, that means the javadoc
  *
  * @author Jaroslav Tulach
  */
 public final class Digest {
+    private final DigestImplementation impl;
+
     /** Factory method is better than constructor */
-    private Digest() {
+    private Digest(DigestImplementation impl) {
+        this.impl = impl;
     }
     
     /** Factory method to create digest for an algorithm.
@@ -16,6 +22,13 @@
         return null;
     }
       
+    //
+    // these methods are kept the same as in original MessageDigest,
+    // but for simplicity choose just some from the original API
+    //
     
+    public byte[] digest(ByteBuffer bb) {
+        return null;
+    }
             
 }
diff -r 1b1a4a203bf2 -r 8f9ed9c4a97b samples/messagedigest/src/spi/DigestImplementation.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/samples/messagedigest/src/spi/DigestImplementation.java	Sat Jun 14 09:51:46 2008 +0200
@@ -0,0 +1,23 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package spi;
+
+import java.nio.ByteBuffer;
+
+/**
+ *
+ * @author Jaroslav Tulach
+ */
+public abstract class DigestImplementation {
+    final String name;
+    
+    protected DigestImplementation(String algorithm) {
+        this.name = algorithm;
+    }
+    
+    protected abstract void update(ByteBuffer bb);
+    protected abstract byte[] digest();
+}