Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/de/intevation/artifactdatabase/StringUtils.java @ 79:f69e5b87f05f
Implementation to export artifacts as xml (applied patch from issue208 by SLT).
artifacts/trunk@792 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Tue, 16 Mar 2010 16:03:06 +0000 |
parents | |
children | 8447467cef86 |
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78:55eefe63a777 | 79:f69e5b87f05f |
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1 package de.intevation.artifactdatabase; | |
2 | |
3 import java.io.UnsupportedEncodingException; | |
4 | |
5 import java.util.UUID; | |
6 | |
7 import org.apache.log4j.Logger; | |
8 | |
9 /** | |
10 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
11 */ | |
12 public final class StringUtils | |
13 { | |
14 private static Logger logger = Logger.getLogger(StringUtils.class); | |
15 | |
16 private static final char [] HEX = { | |
17 '0', '1', '2', '3', '4', '5', '6', '7', | |
18 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' | |
19 }; | |
20 | |
21 private StringUtils() { | |
22 } | |
23 | |
24 public static final String toHex(byte [] bytes) { | |
25 char out [] = new char[bytes.length*2]; | |
26 | |
27 for (int i = 0, j = 0; i < bytes.length; ++i) { | |
28 byte b = bytes[i]; | |
29 out[j++] = HEX[(b >> 4) & 0xf]; | |
30 out[j++] = HEX[ b & 0xf]; | |
31 } | |
32 | |
33 return new String(out); | |
34 } | |
35 | |
36 public static final String newUUID() { | |
37 return UUID.randomUUID().toString(); | |
38 } | |
39 | |
40 public static final boolean checkUUID(String uuid) { | |
41 try { | |
42 UUID.fromString(uuid); | |
43 } | |
44 catch (IllegalArgumentException iae) { | |
45 logger.warn(iae.getLocalizedMessage()); | |
46 return false; | |
47 } | |
48 return true; | |
49 } | |
50 | |
51 public static final byte [] getUTF8Bytes(String s) { | |
52 try { | |
53 return s.getBytes("UTF-8"); | |
54 } | |
55 catch (UnsupportedEncodingException usee) { | |
56 logger.error(usee.getLocalizedMessage(), usee); | |
57 return s.getBytes(); | |
58 } | |
59 } | |
60 } | |
61 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |