Mercurial > dive4elements > framework
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/StringUtils.java Tue Mar 16 16:03:06 2010 +0000 @@ -0,0 +1,61 @@ +package de.intevation.artifactdatabase; + +import java.io.UnsupportedEncodingException; + +import java.util.UUID; + +import org.apache.log4j.Logger; + +/** + * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> + */ +public final class StringUtils +{ + private static Logger logger = Logger.getLogger(StringUtils.class); + + private static final char [] HEX = { + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' + }; + + private StringUtils() { + } + + public static final String toHex(byte [] bytes) { + char out [] = new char[bytes.length*2]; + + for (int i = 0, j = 0; i < bytes.length; ++i) { + byte b = bytes[i]; + out[j++] = HEX[(b >> 4) & 0xf]; + out[j++] = HEX[ b & 0xf]; + } + + return new String(out); + } + + public static final String newUUID() { + return UUID.randomUUID().toString(); + } + + public static final boolean checkUUID(String uuid) { + try { + UUID.fromString(uuid); + } + catch (IllegalArgumentException iae) { + logger.warn(iae.getLocalizedMessage()); + return false; + } + return true; + } + + public static final byte [] getUTF8Bytes(String s) { + try { + return s.getBytes("UTF-8"); + } + catch (UnsupportedEncodingException usee) { + logger.error(usee.getLocalizedMessage(), usee); + return s.getBytes(); + } + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :