Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultCallMeta.java @ 203:b5e1949bc255

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Implemented a new method in the ClientProtocolUtils that creates the document for a FEED operation. artifacts/trunk@1448 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 10 Mar 2011 08:26:08 +0000
parents 933bbc9fc11f
children
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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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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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50
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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 :
http://dive4elements.wald.intevation.org