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> |
|---|---|
| date | Tue, 16 Mar 2010 16:03:06 +0000 |
| parents | |
| children | 8447467cef86 |
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| 78:55eefe63a777 | 79:f69e5b87f05f |
|---|---|
| 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 : |