Mercurial > dive4elements > framework
annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultCallMeta.java @ 363:4d3298295a64
Enhanced the State interface with a new method initialize() which might be used to initialize the State based on a model Artifact.
artifacts/trunk@3623 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Mon, 09 Jan 2012 08:15:35 +0000 |
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1 /* |
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2 * Copyright (c) 2010 by Intevation GmbH |
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3 * |
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4 * This program is free software under the LGPL (>=v2.1) |
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5 * Read the file LGPL.txt coming with the software for details |
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6 * or visit http://www.gnu.org/licenses/ if it does not exist. |
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7 */ |
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8 |
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9 package de.intevation.artifactdatabase; |
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10 |
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11 import de.intevation.artifacts.CallMeta; |
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12 import de.intevation.artifacts.PreferredLocale; |
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13 |
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14 import java.util.Locale; |
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15 |
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16 /** |
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17 * Default implementation of CallMeta. It provides a list of |
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18 * preferred langauages and implements an intersection mechanism |
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19 * to figure out the best matching language given a list of server |
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20 * provided languages. |
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21 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> |
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22 */ |
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23 public class DefaultCallMeta |
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24 implements CallMeta |
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25 { |
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26 /** |
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27 * The list of preferred languages. |
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28 */ |
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29 protected PreferredLocale [] languages; |
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30 |
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31 /** |
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32 * Default constructor. |
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33 */ |
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34 public DefaultCallMeta() { |
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35 } |
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36 |
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37 /** |
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38 * Creates new DefaultCallMeta with a given list of languages. |
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39 * @param languages The list of preferred languages. |
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40 */ |
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41 public DefaultCallMeta(PreferredLocale [] languages) { |
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42 this.languages = languages; |
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43 } |
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44 |
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45 public PreferredLocale [] getLanguages() { |
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46 return languages; |
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47 } |
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48 |
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49 public Locale getPreferredLocale(Locale [] locales) { |
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50 if (locales == null || locales.length == 0) { |
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51 return null; |
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52 } |
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53 |
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54 Locale best = null; |
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55 float quality = -Float.MAX_VALUE; |
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56 |
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57 for (int i = 0; i < locales.length; ++i) { |
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58 Locale wish = locales[i]; |
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59 String wishLanguage = wish.getLanguage(); |
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60 |
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61 for (int j = 0; j < languages.length; ++j) { |
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62 PreferredLocale have = languages[j]; |
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63 Locale haveLocale = have.getLocale(); |
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64 if (haveLocale.getLanguage().equals(wishLanguage)) { |
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65 float haveQuality = have.getQuality(); |
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66 if (haveQuality > quality) { |
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67 quality = haveQuality; |
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68 best = wish; |
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69 } |
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70 break; // Languages should not contain |
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71 // same locale twice. |
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72 } |
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73 } |
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74 } |
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75 |
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76 return best == null |
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77 ? locales[0] |
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78 : best; |
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79 } |
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80 } |
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81 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |