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1 package com.teamkonzept.international;
2
3 import java.util.*;
4 import java.text.MessageFormat  ;
5 import org.apache.log4j.Category;
6 import com.teamkonzept.web.TKEvent;
7
8
14 public class LanguageManager
15 implements LanguageSelection
16 {
17 private static Hashtable contexts;
18
19 private static Category cat = Category.getInstance(LanguageManager.class);
20
21 private static Hashtable CACHED_LOCALES = new Hashtable();
22
23 public final static String GENERAL = "general";
24
25 static
26 {
27 contexts = new Hashtable();
28 registerContext("/content", LanguageManager.class);
29 registerContext("/general", LanguageManager.class);
30 registerContext("/workflow", LanguageManager.class);
31 registerContext("/form", LanguageManager.class);
32 registerContext("/field", LanguageManager.class);
33 registerContext("/contenttags", LanguageManager.class);
34 registerContext("/documenttype", LanguageManager.class);
35 registerContext("/copytool", LanguageManager.class);
36 registerContext("/properties", LanguageManager.class);
37 registerContext("/start", LanguageManager.class);
38 registerContext("/accessrights", LanguageManager.class);
39 registerContext("/templates", LanguageManager.class);
40 registerContext("/sitestructure", LanguageManager.class);
41 registerContext("/gui", LanguageManager.class);
42 }
43
44
45 private static Locale serverLocale = Locale.GERMAN;
46
47
48 private static int languageCode = USER_CHOSEN_LOCALE;
49
50
51
57 public static void registerContext(String context, Object source)
58 {
59 Class cl = source.getClass();
60 String name = cl.getName();
61 int index = name.lastIndexOf(".");
62 if (index == -1 || context.startsWith("/"))
63 {
64 if (context.startsWith("/"))
66 {
67 contexts.put(context.substring(1, context.length()), context.substring(1, context.length()));
68 }
69 else
70 contexts.put(context, context);
71 }
72 else
73 {
74 contexts.put(context, name.substring(0,index+1) + context);
75 }
76 }
77
78
85 public static String getText (String context,
86 String identifier)
87 {
88 return getText(context, identifier, null);
89 }
90
91
99 public static String getText (String context,
100 String identifier,
101 Object [] arguments)
102 {
103 try
104 {
105 String location = (String )contexts.get(context);
106 if (location == null)
107 {
108 cat.error("Unknown location '" + context + "'");
109 return "";
110 }
111 ResourceBundle bundle = null;
112 if (languageCode == SERVER_CURRENT_LOCALE)
113 {
114 bundle = ResourceBundle.getBundle(location, serverLocale);
115 }
116 else if (languageCode == USER_CHOSEN_LOCALE)
117 {
118 TKEvent evt = TKEvent.getEventForThread();
119 if (evt != null)
120 {
121 String language = evt.getSelectedLanguage();
122 Locale locale;
123 if (language == null){
124 locale = serverLocale;
125 }
126 else{
127 locale = getLocale(language);
128 }
129 bundle = ResourceBundle.getBundle(location, locale);
130 }
131 else
132 {
133 bundle = ResourceBundle.getBundle(location, serverLocale);
135 }
136 }
137 String text = bundle.getString(identifier);
138 if (arguments != null && arguments.length > 0)
139 {
140 text = MessageFormat.format(text, arguments);
141 }
142
143 return text;
144 }
145 catch (MissingResourceException e)
146 {
147 cat.error("No values for '" + identifier + "' in context '" + context + "'");
148 }
149 catch (Exception e)
150 {
151 cat.error("Unknown error" , e);
152 }
153 return "";
154 }
155
156
159 public static Locale getLocale(String language){
160 Locale locale = (Locale)CACHED_LOCALES.get(language);
161 if ( locale == null ){
162 locale = new Locale(language, "");
163 CACHED_LOCALES.put(language, locale);
164 }
165 return locale;
166 }
167
168 public static Locale getStandardLocale()
169 {
170 return serverLocale;
171 }
172
173 public static void setLanguageSelection(int code)
174 {
175 languageCode = code;
176 }
178
179 public static void setLocale(Locale locale)
180 {
181 serverLocale = locale;
182 }
183
184
185
188 public static String getAppliableLanguage() {
189 Locale locale = null;
190 if (languageCode == SERVER_CURRENT_LOCALE) {
191 locale = serverLocale;
192 }
193 else if (languageCode == USER_CHOSEN_LOCALE) {
194 TKEvent evt = TKEvent.getEventForThread();
195 if (evt != null) {
196 String language = evt.getSelectedLanguage();
197 if (language == null) {
198 locale = serverLocale;
199 }
200 else {
201 locale = getLocale(language);
202 }
203 }
204 else {
205 locale = serverLocale;
206 }
207 }
208
209 return (locale != null ? locale.getLanguage() : null);
210 }
211 }
212
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