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