svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.i18n / src / main / java / org / gvsig / i18n / Messages.java @ 44881
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | |
25 | package org.gvsig.i18n; |
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26 | |||
27 | import java.io.File; |
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28 | import java.io.IOException; |
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29 | import java.io.InputStream; |
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30 | import java.net.MalformedURLException; |
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31 | import java.net.URL; |
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32 | import java.text.MessageFormat; |
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33 | import java.util.ArrayList; |
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34 | import java.util.Enumeration; |
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35 | import java.util.HashSet; |
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36 | import java.util.IllegalFormatException; |
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37 | import java.util.Iterator; |
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38 | 41314 | jjdelcerro | import java.util.List; |
39 | 40435 | jjdelcerro | import java.util.Locale; |
40 | import java.util.Properties; |
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41 | import java.util.Set; |
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42 | 44881 | jjdelcerro | import org.gvsig.tools.util.URLUtils; |
43 | 40435 | jjdelcerro | |
44 | import org.slf4j.Logger; |
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45 | import org.slf4j.LoggerFactory; |
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46 | |||
47 | /**
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48 | * <p>This class offers some methods to provide internationalization services
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49 | * to other projects. All the methods are static.</p>
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50 | *
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51 | * <p>The most useful method is {@link #getText(String) getText(key)} (and family),
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52 | * which returns the translation associated
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53 | * with the provided key. The class must be initialized before getText can be
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54 | * used.</p>
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55 | *
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56 | * <p>The typical usage sequence would be:</p>
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57 | * <ul>
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58 | * <li>Add some locale to the prefered locales list: <code>Messages.addLocale(new Locale("es"))</code></li>
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59 | * <li>Add some resource file containing translations: <code>Messages.addResourceFamily("text", new File("."))</code></li>
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60 | * <li>And finaly getText can be used: <code>Messages.getText("aceptar")</code></li>
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61 | * </ul>
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62 | *
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63 | * <p>The resource files are Java properties files, which contain <code>key=translation</code>
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64 | * pairs, one
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65 | * pair per line. These files must be encoded using iso-8859-1 encoding, and unicode escaped
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66 | * sequences must be used to include characters outside the former encoding.
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67 | * There are several ways to specify the property file to load, see the different
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68 | * addResourceFamily methods for details.</p>
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69 | *
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70 | * @author Cesar Martinez Izquierdo (cesar.martinez@iver.es)
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71 | *
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72 | */
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73 | public class Messages { |
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74 | 41314 | jjdelcerro | |
75 | private static class FamilyDescriptor { |
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76 | String family = null; |
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77 | ClassLoader loader = null; |
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78 | String callerName = null; |
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79 | |||
80 | public FamilyDescriptor(String family, ClassLoader loader, String callerName ) { |
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81 | this.family = family;
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82 | this.loader = loader;
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83 | this.callerName = callerName;
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84 | } |
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85 | } |
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86 | |||
87 | 40435 | jjdelcerro | private static Logger logger = LoggerFactory.getLogger("Messages"); |
88 | private static String _CLASSNAME = "org.gvsig.i18n.Messages"; |
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89 | 41314 | jjdelcerro | private static Locale currentLocale; |
90 | 40435 | jjdelcerro | |
91 | /* Each entry will contain a hashmap with translations. Each hasmap
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92 | * contains the translations for one language, indexed by the
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93 | * translation key. The translations for language (i) in the preferred locales
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94 | * list are contained in the position (i) of the localeResources list */
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95 | private static ArrayList localeResources = new ArrayList(); |
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96 | 41321 | jjdelcerro | private static ArrayList preferredLocales = new ArrayList(); // contains the ordered list of prefered languages/locales (class Locale) |
97 | private static Set notTranslatedKeys = new HashSet(); |
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98 | 40435 | jjdelcerro | |
99 | |||
100 | /* Set of resource families and classloaders used to load i18n resources. */
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101 | private static Set resourceFamilies = new HashSet(); |
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102 | private static Set classLoaders = new HashSet(); |
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103 | |||
104 | 42761 | jjdelcerro | private static List<FamilyDescriptor> familyDescriptors = new ArrayList<>(); |
105 | 41314 | jjdelcerro | |
106 | 40435 | jjdelcerro | /*
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107 | * The language considered the origin of translations, which will
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108 | * (possibly) be stored in a property file without language suffix
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109 | * (ie: text.properties instead of text_es.properties).
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110 | */
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111 | private static String baseLanguage = "es"; |
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112 | private static Locale baseLocale = new Locale(baseLanguage); |
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113 | |||
114 | /**
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115 | * <p>Gets the localized message associated with the provided key.
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116 | * If the key is not in the dictionary, return the key and register
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117 | * the failure in the log.</p>
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118 | *
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119 | * <p>The <code>callerName</code> parameter is only
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120 | * used as a label when logging, so any String can be used. However, a
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121 | * meaningful String should be used, such as the name of the class requiring
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122 | * the translation services, in order to identify the source of the failure
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123 | * in the log.</p>
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124 | *
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125 | * @param key An String which identifies the translation that we want to get.
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126 | * @param callerName A symbolic name given to the caller of this method, to
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127 | * show it in the log if the key was not found
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128 | * @return an String with the message associated with the provided key.
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129 | * If the key is not in the dictionary, return the key. If the key
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130 | * is null, return null.
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131 | */
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132 | public static String getText(String key, String callerName) { |
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133 | if (key==null) { |
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134 | return null; |
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135 | } |
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136 | for (int numLocale=0; numLocale<localeResources.size(); numLocale++) { |
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137 | // try to get the translation for any of the languagues in the preferred languages list
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138 | String translation = ((Properties)localeResources.get(numLocale)).getProperty(key); |
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139 | if (translation!=null && !translation.equals("")) { |
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140 | return translation;
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141 | } |
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142 | } |
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143 | 41533 | jjdelcerro | addNotTranslatedKey(key, callerName, true);
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144 | 40435 | jjdelcerro | return key;
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145 | } |
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146 | |||
147 | public static String getText(String key, String[] arguments, String callerName) { |
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148 | String translation = getText(key, callerName);
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149 | if (translation!=null && arguments!=null ) { |
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150 | try {
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151 | translation = MessageFormat.format(translation, arguments);
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152 | } |
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153 | catch (IllegalFormatException ex) { |
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154 | logger.error(callerName+" -- Error formating key: "+key+" -- "+translation); |
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155 | } |
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156 | } |
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157 | return translation;
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158 | } |
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159 | |||
160 | public static String translate(String message, String[] args) { |
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161 | String msg = message;
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162 | if (msg == null) { |
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163 | return ""; |
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164 | } |
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165 | msg = getText(msg, args); |
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166 | if (msg == null) { |
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167 | msg = "_" + message.replace("_", " "); |
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168 | } |
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169 | return msg;
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170 | } |
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171 | |||
172 | public static String translate(String message) { |
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173 | String msg = message;
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174 | if (msg == null) { |
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175 | return ""; |
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176 | } |
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177 | msg = getText(msg, (String[]) null); |
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178 | 40633 | jjdelcerro | if (msg == null || msg.startsWith("_")) { |
179 | 40435 | jjdelcerro | msg = "_" + message.replace("_", " "); |
180 | } |
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181 | return msg;
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182 | } |
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183 | |||
184 | /**
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185 | * <p>Gets the localized message associated with the provided key.
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186 | * If the key is not in the dictionary or the translation is empty,
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187 | * return the key and register the failure in the log.</p>
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188 | *
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189 | * @param key An String which identifies the translation that we want to get.
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190 | * @return an String with the message associated with the provided key.
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191 | * If the key is not in the dictionary or the translation is empty,
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192 | * return the key. If the key is null, return null.
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193 | */
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194 | public static String getText(String key) { |
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195 | return getText(key, _CLASSNAME);
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196 | } |
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197 | |||
198 | public static String getText(String key, String[] arguments) { |
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199 | return getText(key, arguments, _CLASSNAME);
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200 | } |
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201 | |||
202 | |||
203 | /**
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204 | * <p>Gets the localized message associated with the provided key.
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205 | * If the key is not in the dictionary or the translation is empty,
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206 | * it returns null and the failure is only registered in the log if
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207 | * the param log is true.</p>
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208 | *
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209 | * @param key An String which identifies the translation that we want
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210 | * to get.
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211 | * @param log Determines whether log a key failure or not
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212 | * @return an String with the message associated with the provided key,
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213 | * or null if the key is not in the dictionary or the
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214 | * translation is empty.
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215 | */
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216 | public static String getText(String key, boolean log) { |
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217 | return getText(key, _CLASSNAME, log);
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218 | } |
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219 | |||
220 | public static String getText(String key, String[] arguments, boolean log) { |
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221 | String translation = getText(key, _CLASSNAME, log);
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222 | if (translation!=null && arguments!=null ) { |
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223 | try {
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224 | translation = MessageFormat.format(translation, arguments);
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225 | } catch (IllegalFormatException ex) { |
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226 | if (log) {
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227 | logger.error(_CLASSNAME+" -- Error formating key: "+key+" -- "+translation); |
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228 | } |
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229 | } |
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230 | } |
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231 | return translation;
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232 | } |
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233 | |||
234 | /**
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235 | * <p>Gets the localized message associated with the provided key.
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236 | * If the key is not in the dictionary, it returns null and the failure
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237 | * is only registered in the log if the param log is true.</p>
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238 | *
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239 | * @param key An String which identifies the translation that we want to get.
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240 | * @param callerName A symbolic name given to the caller of this method, to
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241 | * show it in the log if the key was not found
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242 | * @param log Determines whether log a key failure or not
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243 | * @return an String with the message associated with the provided key,
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244 | * or null if the key is not in the dictionary.
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245 | */
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246 | public static String getText(String key, String callerName, boolean log) { |
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247 | if (key==null) { |
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248 | return null; |
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249 | } |
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250 | for (int numLocale=0; numLocale<localeResources.size(); numLocale++) { |
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251 | // try to get the translation for any of the languagues in the preferred languages list
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252 | String translation = ((Properties)localeResources.get(numLocale)).getProperty(key); |
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253 | if (translation!=null && !translation.equals("")) { |
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254 | return translation;
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255 | } |
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256 | } |
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257 | 41533 | jjdelcerro | addNotTranslatedKey(key, callerName, log); |
258 | 40435 | jjdelcerro | return null; |
259 | } |
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260 | |||
261 | public static String getText(String key, String[] arguments, String callerName, boolean log) { |
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262 | String translation = getText(key, callerName, log);
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263 | if (translation!=null) { |
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264 | try {
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265 | translation = MessageFormat.format(translation, arguments);
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266 | } |
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267 | catch (IllegalFormatException ex) { |
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268 | if (log) {
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269 | logger.error(callerName+" -- Error formating key: "+key+" -- "+translation); |
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270 | } |
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271 | } |
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272 | } |
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273 | return translation;
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274 | } |
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275 | |||
276 | /**
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277 | * <p>Adds an additional family of resource files containing some translations.
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278 | * A family is a group of files with a common baseName.
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279 | * The file must be an iso-8859-1 encoded file, which can contain any unicode
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280 | * character using unicode escaped sequences, and following the syntax:
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281 | * <code>key1=value1
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282 | * key2=value2</code>
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283 | * where 'key1' is the key used to identify the string and must not
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284 | * contain the '=' symbol, and 'value1' is the associated translation.</p>
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285 | 42543 | jjdelcerro | * <p>For example:</p>
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286 | 40435 | jjdelcerro | * <code>cancel=Cancelar
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287 | * accept=Aceptar</code>
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288 | * <p>Only one pair key-value is allowed per line.</p>
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289 | *
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290 | * <p>The actual name of the resource file to load is determined using the rules
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291 | * explained in the class java.util.ResourceBundle. Summarizing, for each language
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292 | * in the specified preferred locales list it will try to load a file with
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293 | * the following structure: <code>family_locale.properties</code></p>
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294 | *
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295 | * <p>For example, if the preferred locales list contains {"fr", "es", "en"}, and
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296 | * the family name is "text", it will try to load the files "text_fr.properties",
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297 | * "text_es.properties" and finally "text_en.properties".</p>
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298 | *
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299 | * <p>Locales might be more specific, such us "es_AR" (meaning Spanish from Argentina)
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300 | * or "es_AR_linux" (meaning Linux system preferring Spanish from Argentina). In the
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301 | * later case, it will try to load "text_es_AR_linux.properties", then
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302 | * "text_es_AR.properties" if the former fails, and finally "text_es.properties".</p>
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303 | *
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304 | * <p>The directory used to locate the resource file is determining by using the
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305 | * getResource method from the provided ClassLoader.</p>
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306 | *
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307 | * @param family The family name (or base name) which is used to search
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308 | * actual properties files.
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309 | * @param loader A ClassLoader which is able to find a property file matching
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310 | * the specified family name and the preferred locales
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311 | * @see <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/util/ResourceBundle.html">ResourceBundle</a>
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312 | */
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313 | public static void addResourceFamily(String family, ClassLoader loader) { |
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314 | addResourceFamily(family, loader, "");
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315 | } |
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316 | |||
317 | /**
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318 | * <p>Adds an additional family of resource files containing some translations.
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319 | * The search path to locate the files is provided by the dirList parameter.</p>
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320 | *
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321 | 42543 | jjdelcerro | * <p>See {@link #addResourceFamily(String, ClassLoader)} for a discussion about the
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322 | 40435 | jjdelcerro | * format of the property files and the way to determine the candidat files
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323 | * to load. Note that those methods are different in the way to locate the
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324 | * candidat files. This method searches in the provided paths (<code>dirList</code>
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325 | * parameter), while the referred method searches using the getResource method
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326 | * of the provided ClassLoader.</p>
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327 | *
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328 | * @param family The family name (or base name) which is used to search
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329 | * actual properties files.
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330 | * @param dirList A list of search paths to locate the property files
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331 | * @throws MalformedURLException
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332 | * @see <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/util/ResourceBundle.html">ResourceBundle</a>
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333 | */
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334 | public static void addResourceFamily(String family, File[] dirList) throws MalformedURLException{ |
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335 | // use our own classloader
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336 | URL[] urls = new URL[dirList.length]; |
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337 | |||
338 | int i;
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339 | for (i=0; i<urls.length; i++) { |
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340 | urls[i] = dirList[i].toURL(); |
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341 | } |
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342 | |||
343 | ClassLoader loader = new MessagesClassLoader(urls); |
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344 | addResourceFamily(family, loader, "");
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345 | } |
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346 | |||
347 | /**
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348 | * <p>Adds an additional family of resource files containing some translations.
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349 | * The search path to locate the files is provided by the dir parameter.</p>
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350 | *
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351 | 42543 | jjdelcerro | * <p>See {@link #addResourceFamily(String, ClassLoader)} for a discussion about the
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352 | 40435 | jjdelcerro | * format of the property files and the way to determine the candidat files
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353 | * to load. Note that those methods are different in the way to locate the
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354 | * candidat files. This method searches in the provided path (<code>dir</code>
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355 | * parameter), while the referred method searches using the getResource method
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356 | * of the provided ClassLoader.</p>
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357 | *
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358 | * @param family The family name (or base name) which is used to search
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359 | * actual properties files.
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360 | 42761 | jjdelcerro | * @param folder The search path to locate the property files
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361 | 40435 | jjdelcerro | * @throws MalformedURLException
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362 | * @see <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/util/ResourceBundle.html">ResourceBundle</a>
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363 | */
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364 | 42761 | jjdelcerro | public static void addResourceFamily(String family, File folder) throws MalformedURLException{ |
365 | 40435 | jjdelcerro | // use our own classloader
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366 | 42761 | jjdelcerro | URL[] urls = new URL[] { folder.toURI().toURL() }; |
367 | 40435 | jjdelcerro | ClassLoader loader = new MessagesClassLoader(urls); |
368 | 42761 | jjdelcerro | for (FamilyDescriptor familyDescriptor : familyDescriptors) {
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369 | if( familyDescriptor.callerName.equals(folder.getAbsolutePath()) &&
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370 | familyDescriptor.family.equals(family) ) { |
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371 | // Already added
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372 | return;
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373 | } |
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374 | } |
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375 | addResourceFamily(family, loader, folder.getAbsolutePath()); |
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376 | 40435 | jjdelcerro | } |
377 | |||
378 | |||
379 | /**
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380 | * <p>Adds an additional family of resource files containing some translations.
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381 | * The search path is determined by the getResource method from the
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382 | * provided ClassLoader.</p>
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383 | *
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384 | 42543 | jjdelcerro | * <p>This method is identical to {@link #addResourceFamily(String, ClassLoader)},
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385 | * except that it adds a <code>callerName</code> parameter to show in the log.</p>
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386 | 40435 | jjdelcerro | *
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387 | 42543 | jjdelcerro | * <p>See {@link #addResourceFamily(String, ClassLoader)} for a discussion about the
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388 | 40435 | jjdelcerro | * format of the property files andthe way to determine the candidat files
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389 | * to load.</p>
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390 | *
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391 | * @param family The family name (or base name) which is used to search
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392 | * actual properties files.
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393 | * @param loader A ClassLoader which is able to find a property file matching
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394 | * the specified family name and the preferred locales
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395 | * @param callerName A symbolic name given to the caller of this method, to
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396 | * show it in the log if there is an error
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397 | * @see <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/util/ResourceBundle.html">ResourceBundle</a>
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398 | */
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399 | public static void addResourceFamily(String family, ClassLoader loader, String callerName) { |
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400 | 41030 | jjdelcerro | // String currentKey;
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401 | // Enumeration keys;
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402 | 40435 | jjdelcerro | Locale lang;
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403 | 41030 | jjdelcerro | // Properties properties;
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404 | Properties translations;
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405 | 40435 | jjdelcerro | int totalLocales = preferredLocales.size();
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406 | |||
407 | if (totalLocales == 0) { |
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408 | // if it's empty, warn about that
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409 | logger.warn("There is not preferred languages list. Maybe the Messages class was not initialized");
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410 | } |
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411 | |||
412 | 41314 | jjdelcerro | familyDescriptors.add( new FamilyDescriptor(family,loader,callerName));
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413 | |||
414 | 40435 | jjdelcerro | resourceFamilies.add(family); |
415 | classLoaders.add(loader); |
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416 | |||
417 | for (int numLocale=0; numLocale<totalLocales; numLocale++) { // for each language |
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418 | 41030 | jjdelcerro | // properties = new Properties();
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419 | 40435 | jjdelcerro | |
420 | lang = (Locale) preferredLocales.get(numLocale);
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421 | translations = (Properties) localeResources.get(numLocale);
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422 | |||
423 | addResourceFamily(lang, translations, family, loader, callerName); |
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424 | } |
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425 | } |
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426 | 41314 | jjdelcerro | |
427 | 44881 | jjdelcerro | private static void addResourceFamily(Locale lang, Properties translations, |
428 | String family, ClassLoader loader, String callerName) { |
||
429 | logger.debug("addResourceFamily " + lang.toString() + ", " + family + ", " + loader.toString()); |
||
430 | 40435 | jjdelcerro | |
431 | 44881 | jjdelcerro | Properties properties = new Properties(); |
432 | String langCode = lang.toString();
|
||
433 | String resource = family.replace('.', '/') + "_" + langCode + ".properties"; |
||
434 | URL resourceURL = loader.getResource(resource);
|
||
435 | // InputStream is = loader.getResourceAsStream(resource);
|
||
436 | InputStream is = URLUtils.openStream(resourceURL);
|
||
437 | if (is == null && langCode.contains("_")) { |
||
438 | try {
|
||
439 | langCode = langCode.split("_")[0]; |
||
440 | resource = family.replace('.', '/') + "_" + langCode + ".properties"; |
||
441 | resourceURL = loader.getResource(resource); |
||
442 | // is = loader.getResourceAsStream(resource);
|
||
443 | is = URLUtils.openStream(resourceURL); |
||
444 | if (is == null) { |
||
445 | resource = family.replace('.', '/') + ".properties"; |
||
446 | resourceURL = loader.getResource(resource); |
||
447 | // is = loader.getResourceAsStream(resource);
|
||
448 | is = URLUtils.openStream(resourceURL); |
||
449 | } |
||
450 | } catch (Exception ex) { |
||
451 | // Do nothing, is are null and are handled later
|
||
452 | } |
||
453 | } |
||
454 | if (is != null) { |
||
455 | try {
|
||
456 | properties.load(is); |
||
457 | } catch (IOException e) { |
||
458 | } |
||
459 | } else if (lang.equals(baseLocale)) { |
||
460 | // try also "text.properties" for the base language
|
||
461 | resource = family.replace('.', '/') + ".properties"; |
||
462 | resourceURL = loader.getResource(resource); |
||
463 | is = URLUtils.openStream(resourceURL); |
||
464 | // is = loader.getResourceAsStream(family.replace('.', '/') + ".properties");
|
||
465 | 40435 | jjdelcerro | |
466 | 44881 | jjdelcerro | if (is != null) { |
467 | try {
|
||
468 | properties.load(is); |
||
469 | } catch (IOException e) { |
||
470 | } |
||
471 | } |
||
472 | 40435 | jjdelcerro | |
473 | 44881 | jjdelcerro | } |
474 | if (resourceURL != null && logger.isDebugEnabled()) { |
||
475 | logger.debug("Load resources from '" + resourceURL.toString() + "' with classloader {" + loader.toString() + "}."); |
||
476 | } |
||
477 | Enumeration keys = properties.keys();
|
||
478 | while (keys.hasMoreElements()) {
|
||
479 | String currentKey = (String) keys.nextElement(); |
||
480 | if (!translations.containsKey(currentKey)) {
|
||
481 | translations.put(currentKey, properties.getProperty(currentKey)); |
||
482 | } |
||
483 | } |
||
484 | 40435 | jjdelcerro | |
485 | 44881 | jjdelcerro | } |
486 | 40435 | jjdelcerro | |
487 | /**
|
||
488 | * <p>Adds an additional family of resource files containing some translations.</p>
|
||
489 | *
|
||
490 | 42543 | jjdelcerro | * <p>This method is identical to {@link #addResourceFamily(String, ClassLoader, String)},
|
491 | 40435 | jjdelcerro | * except that it uses the caller's class loader.</p>
|
492 | *
|
||
493 | 42543 | jjdelcerro | * <p>See {@link #addResourceFamily(String, ClassLoader)} for a discussion about the
|
494 | 40435 | jjdelcerro | * format of the property files and the way to determine the candidat files
|
495 | * to load.</p>
|
||
496 | *
|
||
497 | * @param family The family name (or base name) which is used to search
|
||
498 | * actual properties files.
|
||
499 | * @param callerName A symbolic name given to the caller of this method, to
|
||
500 | * show it in the log if there is an error. This is only used
|
||
501 | * to show
|
||
502 | * something meaningful in the log, so you can use any string
|
||
503 | * @see <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/util/ResourceBundle.html">ResourceBundle</a>
|
||
504 | */
|
||
505 | public static void addResourceFamily(String family, String callerName) { |
||
506 | addResourceFamily(family, Messages.class.getClassLoader(), callerName); |
||
507 | } |
||
508 | |||
509 | |||
510 | /**
|
||
511 | * Returns an ArrayList containing the ordered list of prefered Locales
|
||
512 | * Each element of the ArrayList is a Locale object.
|
||
513 | *
|
||
514 | * @return an ArrayList containing the ordered list of prefered Locales
|
||
515 | * Each element of the ArrayList is a Locale object.
|
||
516 | */
|
||
517 | public static ArrayList getPreferredLocales() { |
||
518 | return preferredLocales;
|
||
519 | } |
||
520 | |||
521 | /**
|
||
522 | * <p>Sets the ordered list of preferred locales.
|
||
523 | * Each element of the ArrayList is a Locale object.</p>
|
||
524 | *
|
||
525 | * <p>Note that calling this method does not load any translation, it just
|
||
526 | * adds the language to the preferred locales list, so this method must
|
||
527 | * be always called before the translations are loaded using
|
||
528 | * the addResourceFamily() methods.</p>
|
||
529 | *
|
||
530 | * <p>It there was any language in the preferred locale list, the language
|
||
531 | * and its associated translations are deleted.</p>
|
||
532 | *
|
||
533 | *
|
||
534 | 42543 | jjdelcerro | * @param preferredLocalesList an ArrayList containing Locale objects.
|
535 | 40435 | jjdelcerro | * The ArrayList represents an ordered list of preferred locales
|
536 | */
|
||
537 | public static void setPreferredLocales(ArrayList preferredLocalesList) { |
||
538 | 41314 | jjdelcerro | logger.info("setPreferredLocales "+preferredLocalesList.toString());
|
539 | 40435 | jjdelcerro | // delete all existing locales
|
540 | Iterator oldLocales = preferredLocales.iterator();
|
||
541 | while (oldLocales.hasNext()) {
|
||
542 | removeLocale((Locale) oldLocales.next());
|
||
543 | } |
||
544 | |||
545 | // add the new locales now
|
||
546 | for (int numLocale=0; numLocale < preferredLocalesList.size(); numLocale++) { |
||
547 | addLocale((Locale) preferredLocalesList.get(numLocale));
|
||
548 | } |
||
549 | } |
||
550 | |||
551 | 41314 | jjdelcerro | public static Locale getCurrentLocale() { |
552 | return currentLocale;
|
||
553 | } |
||
554 | 41390 | jjdelcerro | |
555 | /**
|
||
556 | *
|
||
557 | 42543 | jjdelcerro | * @param locale
|
558 | 41390 | jjdelcerro | * @deprecated use setCurrentLocale(Locale locale, Locale alternatives[]) or LocaleManager.setCurrentLocale
|
559 | */
|
||
560 | public static void setCurrentLocale(Locale locale) { |
||
561 | Locale alternatives[] = null; |
||
562 | |||
563 | String localeStr = locale.getLanguage();
|
||
564 | if ( localeStr.equals("es") || |
||
565 | localeStr.equals("ca") ||
|
||
566 | localeStr.equals("gl") ||
|
||
567 | localeStr.equals("eu") ||
|
||
568 | localeStr.equals("vl") ) {
|
||
569 | alternatives = new Locale[2]; |
||
570 | alternatives[0] = new Locale("es"); |
||
571 | alternatives[1] = new Locale("en"); |
||
572 | } else {
|
||
573 | // prefer English for the rest
|
||
574 | alternatives = new Locale[2]; |
||
575 | alternatives[0] = new Locale("en"); |
||
576 | alternatives[1] = new Locale("es"); |
||
577 | } |
||
578 | setCurrentLocale(locale, alternatives); |
||
579 | } |
||
580 | 41314 | jjdelcerro | |
581 | 41390 | jjdelcerro | public static void setCurrentLocale(Locale locale, Locale alternatives[]) { |
582 | 41314 | jjdelcerro | logger.info("setCurrentLocale "+locale.toString());
|
583 | |||
584 | resourceFamilies = new HashSet(); |
||
585 | classLoaders = new HashSet(); |
||
586 | localeResources = new ArrayList(); |
||
587 | preferredLocales = new ArrayList(); |
||
588 | 41321 | jjdelcerro | notTranslatedKeys = new HashSet(); |
589 | 41314 | jjdelcerro | |
590 | addLocale(locale); |
||
591 | 41390 | jjdelcerro | for( int i=0 ; i<alternatives.length; i++ ) { |
592 | addLocale(alternatives[i]); |
||
593 | 41314 | jjdelcerro | } |
594 | for( int curlocale=0; curlocale<preferredLocales.size(); curlocale++) { |
||
595 | for( int curfamily=0; curfamily<familyDescriptors.size(); curfamily++) { |
||
596 | FamilyDescriptor family = (FamilyDescriptor) familyDescriptors.get(curfamily); |
||
597 | addResourceFamily( |
||
598 | (Locale) preferredLocales.get(curlocale),
|
||
599 | (Properties) localeResources.get(curlocale),
|
||
600 | family.family, |
||
601 | family.loader, |
||
602 | family.callerName); |
||
603 | } |
||
604 | } |
||
605 | currentLocale = locale; |
||
606 | Locale.setDefault(locale);
|
||
607 | } |
||
608 | |||
609 | 40435 | jjdelcerro | /**
|
610 | * Adds a Locale at the end of the ordered list of preferred locales.
|
||
611 | * Note that calling this method does not load any translation, it just
|
||
612 | * adds the language to the preferred locales list, so this method must
|
||
613 | * be always called before the translations are loaded using
|
||
614 | * the addResourceFamily() methods.
|
||
615 | *
|
||
616 | * @param lang A Locale object specifying the locale to add
|
||
617 | */
|
||
618 | public static void addLocale(Locale lang) { |
||
619 | if (!preferredLocales.contains(lang)) { // avoid duplicates |
||
620 | 41314 | jjdelcerro | logger.info("addLocale "+lang.toString());
|
621 | preferredLocales.add(lang); // add the lang to the ordered list of preferred locales
|
||
622 | Properties dict = new Properties(); |
||
623 | localeResources.add(dict); // add a hashmap which will contain the translation for this language
|
||
624 | 40435 | jjdelcerro | } |
625 | } |
||
626 | |||
627 | /**
|
||
628 | * Removes the specified Locale from the list of preferred locales and the
|
||
629 | * translations associated with this locale.
|
||
630 | *
|
||
631 | * @param lang A Locale object specifying the locale to remove
|
||
632 | * @return True if the locale was in the preferred locales list, false otherwise
|
||
633 | */
|
||
634 | public static boolean removeLocale(Locale lang) { |
||
635 | int numLocale = preferredLocales.indexOf(lang);
|
||
636 | if (numLocale!=-1) { // we found the locale in the list |
||
637 | try {
|
||
638 | preferredLocales.remove(numLocale); |
||
639 | localeResources.remove(numLocale); |
||
640 | } |
||
641 | catch (IndexOutOfBoundsException ex) { |
||
642 | 41030 | jjdelcerro | logger.warn(_CLASSNAME + "." + "removeLocale: " + ex.getLocalizedMessage(), ex); |
643 | 40435 | jjdelcerro | } |
644 | return true; |
||
645 | } |
||
646 | return false; |
||
647 | } |
||
648 | |||
649 | /**
|
||
650 | * Cleans the translation tables (removes all the translations from memory).
|
||
651 | */
|
||
652 | public static void removeResources() { |
||
653 | for (int numLocale=0; numLocale<localeResources.size(); numLocale++) { |
||
654 | ((Properties)localeResources.get(numLocale)).clear();
|
||
655 | } |
||
656 | } |
||
657 | |||
658 | /**
|
||
659 | * The number of translation keys which have been loaded till now
|
||
660 | * (In other words: the number of available translation strings).
|
||
661 | *
|
||
662 | * @param lang The language for which we want to know the number of translation keys
|
||
663 | 42543 | jjdelcerro | * @return The number of translation keys for the provided language.
|
664 | 40435 | jjdelcerro | */
|
665 | protected static int size(Locale lang) { |
||
666 | int numLocale = preferredLocales.indexOf(lang);
|
||
667 | if (numLocale!=-1) { |
||
668 | return ((Properties)localeResources.get(numLocale)).size(); |
||
669 | }; |
||
670 | return 0; |
||
671 | } |
||
672 | |||
673 | protected static Set keySet(Locale lang) { |
||
674 | int numLocale = preferredLocales.indexOf(lang);
|
||
675 | if (numLocale!=-1) { |
||
676 | return ((Properties)localeResources.get(numLocale)).keySet(); |
||
677 | } else {
|
||
678 | return null; |
||
679 | } |
||
680 | } |
||
681 | |||
682 | /**
|
||
683 | * Checks if some locale has been added to the preferred locales
|
||
684 | * list, which is necessary before loading any translation because
|
||
685 | * only the translations for the preferred locales are loaded.
|
||
686 | *
|
||
687 | * @return
|
||
688 | */
|
||
689 | public static boolean hasLocales() { |
||
690 | return preferredLocales.size()>0; |
||
691 | } |
||
692 | |||
693 | /**
|
||
694 | * Gets the base language, the language considered the origin of
|
||
695 | * translations, which will be (possibly) stored in a property
|
||
696 | * file without language suffix
|
||
697 | * (ie: text.properties instead of text_es.properties).
|
||
698 | 42543 | jjdelcerro | * @return the base language name
|
699 | 40435 | jjdelcerro | */
|
700 | public static String getBaseLanguage() { |
||
701 | return baseLanguage;
|
||
702 | } |
||
703 | |||
704 | /**
|
||
705 | * Sets the base language, the language considered the origin of
|
||
706 | * translations, which will be (possibly)
|
||
707 | * stored in a property file without language suffix
|
||
708 | * (ie: text.properties instead of text_es.properties).
|
||
709 | *
|
||
710 | * @param lang The base language to be set
|
||
711 | */
|
||
712 | public static void setBaseLanguage(String lang) { |
||
713 | baseLanguage = lang; |
||
714 | baseLocale = new Locale(baseLanguage); |
||
715 | } |
||
716 | |||
717 | |||
718 | public static Properties getAllTexts(Locale lang) { |
||
719 | Properties texts = new Properties(); |
||
720 | getAllTexts(lang, null, texts);
|
||
721 | for (Iterator iterator = classLoaders.iterator(); iterator.hasNext();) { |
||
722 | getAllTexts(lang, (ClassLoader) iterator.next(), texts);
|
||
723 | } |
||
724 | return texts;
|
||
725 | } |
||
726 | |||
727 | private static void getAllTexts(Locale lang, ClassLoader classLoader, |
||
728 | Properties texts) {
|
||
729 | ClassLoader loader = classLoader == null ? Messages.class |
||
730 | .getClassLoader() : classLoader; |
||
731 | |||
732 | for (Iterator iterator = resourceFamilies.iterator(); iterator |
||
733 | .hasNext();) { |
||
734 | String family = (String) iterator.next(); |
||
735 | addResourceFamily(lang, texts, family, loader, |
||
736 | "Messages.getAllTexts");
|
||
737 | } |
||
738 | } |
||
739 | |||
740 | 41321 | jjdelcerro | |
741 | public static Properties getTranslations(Locale locale) { |
||
742 | Properties translations = new Properties(); |
||
743 | for( int curfamily=0; curfamily<familyDescriptors.size(); curfamily++) { |
||
744 | FamilyDescriptor family = (FamilyDescriptor) familyDescriptors.get(curfamily); |
||
745 | addResourceFamily( |
||
746 | locale, |
||
747 | translations, |
||
748 | family.family, |
||
749 | family.loader, |
||
750 | family.callerName); |
||
751 | } |
||
752 | return translations;
|
||
753 | } |
||
754 | 41533 | jjdelcerro | |
755 | private static void addNotTranslatedKey(String key, String callerName, boolean log) { |
||
756 | if (!notTranslatedKeys.contains(key)) {
|
||
757 | if( log ) {
|
||
758 | 44719 | jjdelcerro | logger.trace("[" + callerName + "] Cannot find translation for key '" + key + "'."); |
759 | 41533 | jjdelcerro | } |
760 | notTranslatedKeys.add(key); |
||
761 | } |
||
762 | 41321 | jjdelcerro | } |
763 | |||
764 | public static List getNotTranslatedKeys() { |
||
765 | List l = new ArrayList(notTranslatedKeys); |
||
766 | return l;
|
||
767 | } |
||
768 | 40596 | jjdelcerro | } |