Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/resources/Resources.java @ 2089:0da8874bd378

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Added initial state to map artifact to be able to advance and step back. The map artifact overrides describe() to have the complete UI information in the describe response document. flys-artifacts/trunk@3613 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 06 Jan 2012 12:02:10 +0000
parents e0fec407a280
children 2898b1ff6013
rev   line source
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1 package de.intevation.flys.artifacts.resources;
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2
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3 import java.text.MessageFormat;
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4 import java.util.Locale;
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5 import java.util.MissingResourceException;
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6 import java.util.ResourceBundle;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import de.intevation.artifacts.CallMeta;
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11
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12 /**
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13 * This class provides methods for i18n.
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14 *
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15 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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16 */
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17 public class Resources {
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18
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19 /** The logger that is used in this class.*/
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20 private static Logger logger = Logger.getLogger(Resources.class);
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21
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22 /** The singleton instance.*/
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23 private static Resources INSTANCE;
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24
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25 /** The locales supported by this server.*/
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26 protected Locale[] locales;
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27
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28 /**
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29 * No instance of this class is necessary.
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30 */
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31 private Resources() {
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32 }
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33
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34
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35 /**
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36 * Returns the locales supported by this server.
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37 *
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38 * @return the supported locales.
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39 */
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40 public Locale[] getLocales() {
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41 if (locales == null) {
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42 readLocales();
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43 }
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44
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45 return locales;
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46 }
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47
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48
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49 /**
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50 * Read the locales configured for this server.
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51 */
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52 protected void readLocales() {
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53 // TODO IMPLEMENT ME
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54
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55 locales = new Locale[2];
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56 locales[0] = Locale.GERMANY;
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57 locales[1] = Locale.ENGLISH;
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58 }
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59
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60
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61 public static Locale getLocale(CallMeta meta) {
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62 if (INSTANCE == null) {
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63 INSTANCE = new Resources();
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64 }
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65
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66 Locale[] locales = INSTANCE.getLocales();
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67 return meta.getPreferredLocale(locales);
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68 }
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125
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71 /**
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72 * This method returns the translated value for <i>key</i> or <i>def</i> if
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73 * <i>key</i> is not existing in the resource bundle.
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74 *
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75 * @param meta The CallMeta object of the request that contains the
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76 * preferred locale.
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77 * @param key The key that should be translated.
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78 * @param def A default value that is returned, if <i>key</i> was not found.
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79 *
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80 * @return the translated message.
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81 */
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82 public static String getMsg(CallMeta meta, String key, String def) {
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83 if (INSTANCE == null) {
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84 INSTANCE = new Resources();
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85 }
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86
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87 Locale[] locales = INSTANCE.getLocales();
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88 Locale locale = meta.getPreferredLocale(locales);
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89
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90 return getMsg(locale, key, def);
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91 }
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92
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93
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94 /**
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95 * Returns a translated message based on a template specified by <i>key</i>
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96 * that has necessary values to be filled in.
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97 *
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98 * @param meta The CallMeta object.
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99 * @param key The key of the template in the resource bundle.
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100 * @param def the default value if no template was found with <i>key</i>.
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101 * @param args The arguments that are necessary for the template.
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102 *
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103 * @return a translated string.
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104 */
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105 public static String getMsg(
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106 CallMeta meta,
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107 String key,
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108 String def,
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109 Object[] args)
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110 {
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111 String template = getMsg(meta, key, null);
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112
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113 if (template == null) {
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114 return def;
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115 }
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116
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117 return MessageFormat.format(template, args);
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118 }
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119
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120
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121 /**
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122 * This method returns the translated value for <i>key</i> or <i>def</i> if
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123 * <i>key</i> is not existing in the resource bundle.
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124 *
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125 * @param locale The locale.
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126 * @param key The key that should be translated.
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127 * @param def A default value that is returned, if <i>key</i> was not found.
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128 *
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129 * @return the translated message.
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130 */
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131 public static String getMsg(Locale locale, String key, String def) {
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132 ResourceBundle bundle = ResourceBundle.getBundle("messages", locale);
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133
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134 try {
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135 return bundle.getString(key);
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136 }
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137 catch (MissingResourceException mre) {
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138 logger.warn("No message found for key: " + key);
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139
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140 return def;
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141 }
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142 }
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143 }
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144 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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