Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java @ 683:d49e8695786c

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Ordered imports. Removed needless imports. Removed empty headers. gnv/trunk@855 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 29 Mar 2010 09:10:25 +0000
parents 15ac78a91d1b
children 57fa8019fbdc
rev   line source
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1 package de.intevation.gnv.action;
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2
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3 import de.intevation.gnv.action.sessionmodel.SessionModel;
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4 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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5
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6 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient;
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7 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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8
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9 import de.intevation.gnv.artifactdatabase.objects.ArtifactDescription;
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10 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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11
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12 import javax.servlet.http.HttpServletRequest;
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13 import javax.servlet.http.HttpServletResponse;
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14
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15 import org.apache.log4j.Logger;
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17 import org.apache.struts.action.ActionForm;
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18 import org.apache.struts.action.ActionForward;
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19 import org.apache.struts.action.ActionMapping;
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21 /**
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22 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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23 *
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24 */
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25 public class PreviousArtifactStepAction extends DescribeUIAction {
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28 public static final String URL_STATE_KEY = "target";
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30 private static Logger logger =
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31 Logger.getLogger(PreviousArtifactStepAction.class);
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34 public PreviousArtifactStepAction() {
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35 super();
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36 }
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39 @Override
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40 public ActionForward execute(
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41 ActionMapping mapping,
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42 ActionForm form,
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43 HttpServletRequest request,
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44 HttpServletResponse response
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45 ) throws Exception {
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46
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47 String id = request.getSession().getId();
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48
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49 SessionModel session = SessionModelFactory.getInstance().getSessionModel(
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50 request);
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51
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52 ArtifactDescription ad = session.getArtifactDescription();
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53 if (ad == null) {
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54 logger.warn("Session timed out.");
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55 request.setAttribute(
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56 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID,
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57 "SessionTimeout has occured");
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58 new FetchArtifactFactoriesAction().execute(
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59 mapping, form, request, response);
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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 // TODO check if target is reachable
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66 ArtifactDatabaseClientFactory f =
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67 ArtifactDatabaseClientFactory.getInstance();
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68 ArtifactDatabaseClient client =
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69 f.getArtifactDatabaseClient(getLocale(request));
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71 ArtifactObject artifactFactory = session.getSelectedArtifactFactory();
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72 ArtifactObject currentArtifact = session.getCurrentArtifact();
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74 String target = (String) request.getParameter(URL_STATE_KEY);
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75 logger.debug("Step back to previous state: " + target);
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76
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77 try {
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78 client.doAdvance(
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79 artifactFactory,
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80 currentArtifact,
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81 target
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82 );
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83 }
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84 catch (Exception e) {
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85 logger.error(e, e);
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86 request.setAttribute(
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87 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID,
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88 e.getMessage());
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89 }
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90
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91 return super.execute(mapping, form, request, response);
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92 }
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93 }
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94 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org