Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/org/dive4elements/artifactdatabase/DefaultCallMeta.java @ 473:d0ac790a6c89 dive4elements-move
Moved directories to org.dive4elements
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Thu, 25 Apr 2013 10:57:18 +0200 |
| parents | artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultCallMeta.java@933bbc9fc11f |
| children | 415df0fc4fa1 |
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| 472:783cc1b6b615 | 473:d0ac790a6c89 |
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| 1 /* | |
| 2 * Copyright (c) 2010 by Intevation GmbH | |
| 3 * | |
| 4 * This program is free software under the LGPL (>=v2.1) | |
| 5 * Read the file LGPL.txt coming with the software for details | |
| 6 * or visit http://www.gnu.org/licenses/ if it does not exist. | |
| 7 */ | |
| 8 | |
| 9 package de.intevation.artifactdatabase; | |
| 10 | |
| 11 import de.intevation.artifacts.CallMeta; | |
| 12 import de.intevation.artifacts.PreferredLocale; | |
| 13 | |
| 14 import java.util.Locale; | |
| 15 | |
| 16 /** | |
| 17 * Default implementation of CallMeta. It provides a list of | |
| 18 * preferred langauages and implements an intersection mechanism | |
| 19 * to figure out the best matching language given a list of server | |
| 20 * provided languages. | |
| 21 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
| 22 */ | |
| 23 public class DefaultCallMeta | |
| 24 implements CallMeta | |
| 25 { | |
| 26 /** | |
| 27 * The list of preferred languages. | |
| 28 */ | |
| 29 protected PreferredLocale [] languages; | |
| 30 | |
| 31 /** | |
| 32 * Default constructor. | |
| 33 */ | |
| 34 public DefaultCallMeta() { | |
| 35 } | |
| 36 | |
| 37 /** | |
| 38 * Creates new DefaultCallMeta with a given list of languages. | |
| 39 * @param languages The list of preferred languages. | |
| 40 */ | |
| 41 public DefaultCallMeta(PreferredLocale [] languages) { | |
| 42 this.languages = languages; | |
| 43 } | |
| 44 | |
| 45 public PreferredLocale [] getLanguages() { | |
| 46 return languages; | |
| 47 } | |
| 48 | |
| 49 public Locale getPreferredLocale(Locale [] locales) { | |
| 50 if (locales == null || locales.length == 0) { | |
| 51 return null; | |
| 52 } | |
| 53 | |
| 54 Locale best = null; | |
| 55 float quality = -Float.MAX_VALUE; | |
| 56 | |
| 57 for (int i = 0; i < locales.length; ++i) { | |
| 58 Locale wish = locales[i]; | |
| 59 String wishLanguage = wish.getLanguage(); | |
| 60 | |
| 61 for (int j = 0; j < languages.length; ++j) { | |
| 62 PreferredLocale have = languages[j]; | |
| 63 Locale haveLocale = have.getLocale(); | |
| 64 if (haveLocale.getLanguage().equals(wishLanguage)) { | |
| 65 float haveQuality = have.getQuality(); | |
| 66 if (haveQuality > quality) { | |
| 67 quality = haveQuality; | |
| 68 best = wish; | |
| 69 } | |
| 70 break; // Languages should not contain | |
| 71 // same locale twice. | |
| 72 } | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 return best == null | |
| 77 ? locales[0] | |
| 78 : best; | |
| 79 } | |
| 80 } | |
| 81 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |