Showing the changes to java/pkg/org/jcp/xml/dsig/internal/DigesterOutputStream.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,123 @@ | ||
| 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 | +/* | |
| 22 | + * Copyright (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved. | |
| 23 | + */ | |
| 24 | +/* | |
| 25 | + * $Id: DigesterOutputStream.java,v 1.2 2008/07/24 15:20:31 mullan Exp $ | |
| 26 | + */ | |
| 27 | +package org.jcp.xml.dsig.internal; | |
| 28 | + | |
| 29 | +import java.io.ByteArrayInputStream; | |
| 30 | +import java.io.InputStream; | |
| 31 | +import java.io.OutputStream; | |
| 32 | +import java.security.MessageDigest; | |
| 33 | +import java.util.logging.Logger; | |
| 34 | +import java.util.logging.Level; | |
| 35 | + | |
| 36 | +import com.sun.org.apache.xml.internal.security.utils.UnsyncByteArrayOutputStream; | |
| 37 | + | |
| 38 | +/** | |
| 39 | + * This class has been modified slightly to use java.security.MessageDigest | |
| 40 | + * objects as input, rather than | |
| 41 | + * com.sun.org.apache.xml.internal.security.algorithms.MessageDigestAlgorithm objects. | |
| 42 | + * It also optionally caches the input bytes. | |
| 43 | + * | |
| 44 | + * @author raul | |
| 45 | + * @author Sean Mullan | |
| 46 | + */ | |
| 47 | +public class DigesterOutputStream extends OutputStream { | |
| 48 | + private boolean buffer = false; | |
| 49 | + private UnsyncByteArrayOutputStream bos; | |
| 50 | + private final MessageDigest md; | |
| 51 | + private static Logger log = Logger.getLogger("org.jcp.xml.dsig.internal"); | |
| 52 | + | |
| 53 | + /** | |
| 54 | + * Creates a DigesterOutputStream. | |
| 55 | + * | |
| 56 | + * @param md the MessageDigest | |
| 57 | + */ | |
| 58 | + public DigesterOutputStream(MessageDigest md) { | |
| 59 | + this(md, false); | |
| 60 | + } | |
| 61 | + | |
| 62 | + /** | |
| 63 | + * Creates a DigesterOutputStream. | |
| 64 | + * | |
| 65 | + * @param md the MessageDigest | |
| 66 | + * @param buffer if true, caches the input bytes | |
| 67 | + */ | |
| 68 | + public DigesterOutputStream(MessageDigest md, boolean buffer) { | |
| 69 | + this.md = md; | |
| 70 | + this.buffer = buffer; | |
| 71 | + if (buffer) { | |
| 72 | + bos = new UnsyncByteArrayOutputStream(); | |
| 73 | + } | |
| 74 | + } | |
| 75 | + | |
| 76 | + /** @inheritDoc */ | |
| 77 | + public void write(byte[] input) { | |
| 78 | + write(input, 0, input.length); | |
| 79 | + } | |
| 80 | + | |
| 81 | + /** @inheritDoc */ | |
| 82 | + public void write(int input) { | |
| 83 | + if (buffer) { | |
| 84 | + bos.write(input); | |
| 85 | + } | |
| 86 | + md.update((byte)input); | |
| 87 | + } | |
| 88 | + | |
| 89 | + /** @inheritDoc */ | |
| 90 | + public void write(byte[] input, int offset, int len) { | |
| 91 | + if (buffer) { | |
| 92 | + bos.write(input, offset, len); | |
| 93 | + } | |
| 94 | + if (log.isLoggable(Level.FINER)) { | |
| 95 | + log.log(Level.FINER, "Pre-digested input:"); | |
| 96 | + StringBuffer sb = new StringBuffer(len); | |
| 97 | + for (int i=offset; i<(offset+len); i++) { | |
| 98 | + sb.append((char) input[i]); | |
| 99 | + } | |
| 100 | + log.log(Level.FINER, sb.toString()); | |
| 101 | + } | |
| 102 | + md.update(input, offset, len); | |
| 103 | + } | |
| 104 | + | |
| 105 | + /** | |
| 106 | + * @return the digest value | |
| 107 | + */ | |
| 108 | + public byte[] getDigestValue() { | |
| 109 | + return md.digest(); | |
| 110 | + } | |
| 111 | + | |
| 112 | + /** | |
| 113 | + * @return an input stream containing the cached bytes, or | |
| 114 | + * null if not cached | |
| 115 | + */ | |
| 116 | + public InputStream getInputStream() { | |
| 117 | + if (buffer) { | |
| 118 | + return new ByteArrayInputStream(bos.toByteArray()); | |
| 119 | + } else { | |
| 120 | + return null; | |
| 121 | + } | |
| 122 | + } | |
| 123 | +} | |