Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/ressource/RessourceFactory.java @ 123:8cc96c9cc962

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Added some missing RessourceValues gnv-artifacts/trunk@194 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 06 Oct 2009 13:51:28 +0000
parents 6b9a07f758cf
children 7fb9441dd8af
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.artifacts.ressource;
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5
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6 import java.util.MissingResourceException;
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7 import java.util.ResourceBundle;
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8
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9 import org.apache.log4j.Logger;
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10
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11 import de.intevation.artifacts.PreferredLocale;
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12
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13 /**
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14 * @author Tim Englich <tim.englich@intevation.de>
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15 *
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16 */
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17 public class RessourceFactory {
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18
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19 /**
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20 * the logger, used to log exceptions and additonaly information
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21 */
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22 private static Logger log = Logger.getLogger(RessourceFactory.class);
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23
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24 /**
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25 * The singleton Instance of this Factory.
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26 */
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27 private static RessourceFactory instance = null;
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28
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29 private static String RESSOURCE_BASE_ID = "artifact.ressource.dir";
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30
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31 private static String ressourceName = "artifactMessages";
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32 private static String DEFAULT_DIR = "lang";
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33
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34 private String ressourceDir = null;
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35
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36 /**
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37 * Basic-Constructor of this Class
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38 */
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39 private RessourceFactory() {
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40 super();
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41 ressourceDir = System.getProperty(RESSOURCE_BASE_ID, DEFAULT_DIR);
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42 }
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43
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44 /**
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45 * This Method provides an singleton Instance of this Class.
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46 * @return an singleton Instance of this Class
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47 */
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48 public static synchronized RessourceFactory getInstance(){
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49 if (instance == null){
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50 instance = new RessourceFactory();
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51 }
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52 return instance;
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53 }
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54
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55 /**
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56 * Deliveres the translated Value for an Key to an given Language
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57 * @param locale The choosen locale
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58 * @param key the key
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59 * @param defaultValue the Value that should be returned.
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60 * @return the translated Value
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61 */
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62 public String getRessource(
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63 PreferredLocale [] preferredLocales,
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64 String key,
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65 String defaultValue
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66 ) {
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67 if (key == null || preferredLocales.length == 0) {
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68 return defaultValue;
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69 }
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71 try {
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72 ResourceBundle rb = ResourceBundle.getBundle(
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73 ressourceDir + "/" + ressourceName,
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74 preferredLocales[0].getLocale());
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76 return rb.getString(key);
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77 }
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78 catch (MissingResourceException mre) {
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79 log.warn(mre.getLocalizedMessage());
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80 return defaultValue;
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81 }
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82 }
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83 }
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