1 /*
   2  * reserved comment block
   3  * DO NOT REMOVE OR ALTER!
   4  */
   5 /*
   6  * Copyright 1999-2005 The Apache Software Foundation.
   7  *
   8  *  Licensed under the Apache License, Version 2.0 (the "License");
   9  *  you may not use this file except in compliance with the License.
  10  *  You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  *  Unless required by applicable law or agreed to in writing, software
  15  *  distributed under the License is distributed on an "AS IS" BASIS,
  16  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  *  See the License for the specific language governing permissions and
  18  *  limitations under the License.
  19  *
  20  */
  21 package org.jcp.xml.dsig.internal;
  22 
  23 import java.io.ByteArrayOutputStream;
  24 import javax.crypto.Mac;
  25 
  26 /**
  27  * Derived from Apache sources and changed to use Mac objects instead of
  28  * com.sun.org.apache.xml.internal.security.algorithms.SignatureAlgorithm objects.
  29  *
  30  * @author raul
  31  * @author Sean Mullan
  32  *
  33  */
  34 public class MacOutputStream extends ByteArrayOutputStream {
  35     private final Mac mac;
  36 
  37     public MacOutputStream(Mac mac) {
  38         this.mac = mac;
  39     }
  40 
  41     /** @inheritDoc */
  42     public void write(byte[] arg0)  {
  43         super.write(arg0, 0, arg0.length);
  44         mac.update(arg0);
  45     }
  46 
  47     /** @inheritDoc */
  48     public void write(int arg0) {
  49         super.write(arg0);
  50         mac.update((byte) arg0);
  51     }
  52 
  53     /** @inheritDoc */
  54     public void write(byte[] arg0, int arg1, int arg2) {
  55         super.write(arg0, arg1, arg2);
  56         mac.update(arg0, arg1, arg2);
  57     }
  58 }