| Digester.java |
1 /**
2 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.kernel.util;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27
28 import java.io.UnsupportedEncodingException;
29
30 import java.security.MessageDigest;
31 import java.security.NoSuchAlgorithmException;
32
33 import sun.misc.BASE64Encoder;
34
35 /**
36 * <a href="Digester.java.html"><b><i>View Source</i></b></a>
37 *
38 * @author Brian Wing Shun Chan
39 *
40 */
41 public class Digester {
42
43 public static final String ENCODING = "UTF-8";
44
45 public static final String DIGEST_ALGORITHM = "SHA";
46
47 public static String digest(String text) {
48 return digest(DIGEST_ALGORITHM, text);
49 }
50
51 public static String digest(String algorithm, String text) {
52 MessageDigest mDigest = null;
53
54 try{
55 mDigest = MessageDigest.getInstance(algorithm);
56
57 mDigest.update(text.getBytes(ENCODING));
58 }
59 catch (NoSuchAlgorithmException nsae) {
60 _log.error(nsae, nsae);
61 }
62 catch (UnsupportedEncodingException uee) {
63 _log.error(uee, uee);
64 }
65
66 byte[] raw = mDigest.digest();
67
68 BASE64Encoder encoder = new BASE64Encoder();
69
70 return encoder.encode(raw);
71 }
72
73 private static Log _log = LogFactoryUtil.getLog(Digester.class);
74
75 }