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 */
23package com.sun.org.apache.xml.internal.security.utils;
24
25import java.io.ByteArrayOutputStream;
26
27import com.sun.org.apache.xml.internal.security.algorithms.MessageDigestAlgorithm;
28
29/**
30 * @author raul
31 *
32 */
33public class DigesterOutputStream extends ByteArrayOutputStream {
34    private static final java.util.logging.Logger log =
35        java.util.logging.Logger.getLogger(DigesterOutputStream.class.getName());
36
37    final MessageDigestAlgorithm mda;
38
39    /**
40     * @param mda
41     */
42    public DigesterOutputStream(MessageDigestAlgorithm mda) {
43        this.mda = mda;
44    }
45
46    /** @inheritDoc */
47    public void write(byte[] arg0) {
48        write(arg0, 0, arg0.length);
49    }
50
51    /** @inheritDoc */
52    public void write(int arg0) {
53        mda.update((byte)arg0);
54    }
55
56    /** @inheritDoc */
57    public void write(byte[] arg0, int arg1, int arg2) {
58        if (log.isLoggable(java.util.logging.Level.FINE)) {
59            log.log(java.util.logging.Level.FINE, "Pre-digested input:");
60            StringBuilder sb = new StringBuilder(arg2);
61            for (int i = arg1; i < (arg1 + arg2); i++) {
62                sb.append((char)arg0[i]);
63            }
64            log.log(java.util.logging.Level.FINE, sb.toString());
65        }
66        mda.update(arg0, arg1, arg2);
67    }
68
69    /**
70     * @return the digest value
71     */
72    public byte[] getDigestValue() {
73        return mda.digest();
74    }
75}
76