Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/StoreAction.java @ 991:33198e55371c

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Improved session handling in the gui. If a session has timed out, the user gets to the start point - the fis selection. gnv/trunk@1192 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 10 Jun 2010 15:13:08 +0000
parents 0441e78cd900
children 28a0628b11b0
rev   line source
670
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1 package de.intevation.gnv.action;
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2
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3 import java.io.OutputStream;
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4
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5 import javax.servlet.http.HttpServletRequest;
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6 import javax.servlet.http.HttpServletResponse;
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7
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8 import org.apache.log4j.Logger;
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9 import org.apache.struts.action.ActionForm;
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10 import org.apache.struts.action.ActionForward;
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11 import org.apache.struts.action.ActionMapping;
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12
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13 import de.intevation.gnv.action.sessionmodel.SessionModel;
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14 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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15 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient;
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16 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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17 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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18
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19 /**
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20 * This controller is used to save the current artifact to an xml file. A file
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21 * dialog is opened to save the file to the local disk.
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22 *
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23 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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24 */
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25 public class StoreAction extends ArtifactDatabaseActionBase {
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26
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27 public static final String RESOURCE_DOWNLOAD_FAILURE = "no.artifact.chosen";
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28
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29 /**
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30 * the logger, used to log exceptions and additonaly information
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31 */
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32 private static Logger logger = Logger.getLogger(StoreAction.class);
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33
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34 /**
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35 * Constructor
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36 */
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37 public StoreAction() {
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38 super();
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39 }
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40
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41 @Override
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42 public ActionForward execute(
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43 ActionMapping mapping,
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44 ActionForm form,
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45 HttpServletRequest request,
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46 HttpServletResponse response)
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47 throws Exception
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48 {
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49 if (isSessionExhausted(request)) {
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50 return sessionExhaustedForward(mapping, form, request, response);
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51 }
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52
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53 SessionModelFactory sf = SessionModelFactory.getInstance();
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54 SessionModel sm = sf.getSessionModel(request);
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55
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56 ArtifactDatabaseClientFactory adcf =
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57 ArtifactDatabaseClientFactory.getInstance();
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58 ArtifactDatabaseClient adc =
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59 adcf.getArtifactDatabaseClient(getLocale(request));
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60 ArtifactObject artifact = sm.getCurrentArtifact();
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61
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62 // no artifact set at the moment (which means, the user didn't select a
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63 // fis yet.
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64 if (artifact == null) {
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65 logger.warn("No artifact/fis selected yet.");
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66
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67 request.setAttribute(
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68 CommunicationKeys.REQUEST_EXCEPTION_PROJECT,
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69 RESOURCE_DOWNLOAD_FAILURE);
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70
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71 return super.execute(mapping, form, request, response);
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72 }
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73
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74 logger.info("Export artifact " + artifact.getId());
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75 setHeaders(response, artifact.getId());
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76
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77 OutputStream out = response.getOutputStream();
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78 adc.doExport(
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79 sm.getSelectedArtifactFactory(),
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80 artifact,
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81 out);
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82
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83 out.flush();
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84 out.close();
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85
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86 return null;
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87 }
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88
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89 /**
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90 * Sets the header of the response.
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91 * @param response the response
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92 * @param uuid the uuid of the artifact
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93 */
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94 protected void setHeaders(HttpServletResponse response, String uuid) {
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95 String filename = "GNVArtefakt_" + uuid + ".xml";
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96
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97 response.setHeader("Content-Type", "application/xml");
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98 response.setHeader(
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99 "Content-Disposition",
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100 "attachment;filename=" + filename);
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101 }
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102 }
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103 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org