--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/org/jcp/xml/dsig/internal/DigesterOutputStream.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,119 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+/*
+ * Copyright 1999-2005 The Apache Software Foundation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+/*
+ * $Id: DigesterOutputStream.java,v 1.1.2.2 2005/08/12 18:15:35 mullan Exp $
+ */
+package org.jcp.xml.dsig.internal;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.security.MessageDigest;
+import java.util.logging.Logger;
+import java.util.logging.Level;
+
+import com.sun.org.apache.xml.internal.security.utils.UnsyncByteArrayOutputStream;
+
+/**
+ * This class has been modified slightly to use java.security.MessageDigest
+ * objects as input, rather than
+ * org.apache.xml.security.algorithms.MessageDigestAlgorithm objects.
+ * It also optionally caches the input bytes.
+ *
+ * @author raul
+ */
+public class DigesterOutputStream extends OutputStream {
+    private boolean buffer = false;
+    private UnsyncByteArrayOutputStream bos;
+    private final MessageDigest md;
+    private static Logger log = Logger.getLogger("org.jcp.xml.dsig.internal");
+
+    /**
+     * Creates a DigesterOutputStream.
+     *
+     * @param md the MessageDigest
+     */
+    public DigesterOutputStream(MessageDigest md) {
+        this(md, false);
+    }
+
+    /**
+     * Creates a DigesterOutputStream.
+     *
+     * @param md the MessageDigest
+     * @param buffer if true, caches the input bytes
+     */
+    public DigesterOutputStream(MessageDigest md, boolean buffer) {
+        this.md = md;
+        this.buffer = buffer;
+        if (buffer) {
+            bos = new UnsyncByteArrayOutputStream();
+        }
+    }
+
+    /** @inheritDoc */
+    public void write(byte[] input) {
+        write(input, 0, input.length);
+    }
+
+    /** @inheritDoc */
+    public void write(int input) {
+        if (buffer) {
+            bos.write(input);
+        }
+        md.update((byte)input);
+    }
+
+    /** @inheritDoc */
+    public void write(byte[] input, int offset, int len) {
+        if (buffer) {
+            bos.write(input, offset, len);
+        }
+        if (log.isLoggable(Level.FINER)) {
+            log.log(Level.FINER, "Pre-digested input:");
+            StringBuffer sb = new StringBuffer(len);
+            for (int i=offset; i<(offset+len); i++) {
+                sb.append((char) input[i]);
+            }
+            log.log(Level.FINER, sb.toString());
+        }
+        md.update(input, offset, len);
+    }
+
+    /**
+     * @return the digest value
+     */
+    public byte[] getDigestValue() {
+         return md.digest();
+    }
+
+    /**
+     * @return an input stream containing the cached bytes, or
+     *    null if not cached
+     */
+    public InputStream getInputStream() {
+        if (buffer) {
+            return new ByteArrayInputStream(bos.toByteArray());
+        } else {
+            return null;
+        }
+    }
+}