Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/SwitchLanguageAction.java @ 1022:28a0628b11b0

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Added license file and license header. gnv/trunk@1258 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 02 Nov 2010 17:15:08 +0000
parents 33198e55371c
children
rev   line source
1022
28a0628b11b0 Added license file and license header.
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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.gnv.action;
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10
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11 import de.intevation.gnv.action.sessionmodel.SessionModel;
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12 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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13 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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14
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15 import java.util.Locale;
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16
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17 import javax.servlet.http.HttpServletRequest;
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18 import javax.servlet.http.HttpServletResponse;
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19
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20 import org.apache.log4j.Logger;
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21
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22 import org.apache.struts.Globals;
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23 import org.apache.struts.action.ActionForm;
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24 import org.apache.struts.action.ActionForward;
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25 import org.apache.struts.action.ActionMapping;
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26
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27 /**
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28 * Toggle the current language used to create the user interface. Two
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29 * languages are available now - german and english.
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30 *
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31 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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32 */
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33 public class SwitchLanguageAction extends DescribeUIAction {
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34
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35 public static Logger logger = Logger.getLogger(SwitchLanguageAction.class);
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36
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37 @Override
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38 public ActionForward execute(
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39 ActionMapping mapping,
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40 ActionForm form,
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41 HttpServletRequest request,
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42 HttpServletResponse response
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43 ) throws Exception
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44 {
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45 if (isSessionExhausted(request)) {
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46 return sessionExhaustedForward(mapping, form, request, response);
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47 }
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48
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49 SessionModelFactory factory = SessionModelFactory.getInstance();
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50 SessionModel sm = factory.getSessionModel(request);
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51 Locale locale = switchLanguage(sm.getCurrentLocale());
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52
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53 sm.setCurrentLocale(locale);
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54 ArtifactObject artifactFactory = sm.getSelectedArtifactFactory();
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55
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56 if (artifactFactory == null) {
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57 request.getSession().setAttribute(Globals.LOCALE_KEY, locale);
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58 return mapping.findForward(SUCCSESS_FORWARD_ID);
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59 }
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60
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61 return super.execute(mapping, form, request, response);
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62 }
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63
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64
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65 /**
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66 * This method toggles between german and english language.
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67 *
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68 * @param currentLocale The locale which is currently used.
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69 * @return an english locale, if the current locale is german - otherwise
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70 * a german locale.
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71 */
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72 protected Locale switchLanguage(Locale currentLocale) {
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73 if (currentLocale.getLanguage().equals(Locale.GERMAN.getLanguage())) {
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74 logger.info("Switch from german to english locale.");
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75 return Locale.ENGLISH;
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76 }
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77 else {
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78 logger.info("Switch from english to german locale.");
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79 return Locale.GERMAN;
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80 }
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81 }
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82 }
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83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org