Mercurial > dive4elements > gnv-client
view gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java @ 683:d49e8695786c
Ordered imports. Removed needless imports. Removed empty headers.
gnv/trunk@855 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Mon, 29 Mar 2010 09:10:25 +0000 |
parents | 15ac78a91d1b |
children | 57fa8019fbdc |
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package de.intevation.gnv.action; import de.intevation.gnv.action.sessionmodel.SessionModel; import de.intevation.gnv.action.sessionmodel.SessionModelFactory; import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient; import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory; import de.intevation.gnv.artifactdatabase.objects.ArtifactDescription; import de.intevation.gnv.artifactdatabase.objects.ArtifactObject; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.log4j.Logger; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; /** * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> * */ public class PreviousArtifactStepAction extends DescribeUIAction { public static final String URL_STATE_KEY = "target"; private static Logger logger = Logger.getLogger(PreviousArtifactStepAction.class); public PreviousArtifactStepAction() { super(); } @Override public ActionForward execute( ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response ) throws Exception { String id = request.getSession().getId(); SessionModel session = SessionModelFactory.getInstance().getSessionModel( request); ArtifactDescription ad = session.getArtifactDescription(); if (ad == null) { logger.warn("Session timed out."); request.setAttribute( CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, "SessionTimeout has occured"); new FetchArtifactFactoriesAction().execute( mapping, form, request, response); return super.execute(mapping, form, request, response); } // TODO check if target is reachable ArtifactDatabaseClientFactory f = ArtifactDatabaseClientFactory.getInstance(); ArtifactDatabaseClient client = f.getArtifactDatabaseClient(getLocale(request)); ArtifactObject artifactFactory = session.getSelectedArtifactFactory(); ArtifactObject currentArtifact = session.getCurrentArtifact(); String target = (String) request.getParameter(URL_STATE_KEY); logger.debug("Step back to previous state: " + target); try { client.doAdvance( artifactFactory, currentArtifact, target ); } catch (Exception e) { logger.error(e, e); request.setAttribute( CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, e.getMessage()); } return super.execute(mapping, form, request, response); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :