--- a/gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java	Fri Jan 22 09:49:34 2010 +0000
+++ b/gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java	Fri Jan 22 11:28:25 2010 +0000
@@ -6,33 +6,24 @@
 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 de.intevation.gnv.util.ArtifactNamespaceContext;
-import de.intevation.gnv.util.XMLUtils;
-import de.intevation.gnv.util.XSLTransformer;
-
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-import javax.xml.xpath.XPathConstants;
-
 import org.apache.log4j.Logger;
 
 import org.apache.struts.action.ActionForm;
 import org.apache.struts.action.ActionForward;
 import org.apache.struts.action.ActionMapping;
 
-import org.w3c.dom.Node;
+
 /**
  * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
  *
  */
-public class PreviousArtifactStepAction extends ArtifactDatabaseActionBase {
+public class PreviousArtifactStepAction extends DescribeUIAction {
 
-    public static final String XPATH_DYNAMIC_UI = "art:dynamic";
-    public static final String XPATH_STATIC_UI  = "art:static";
 
     public static final String URL_STATE_KEY = "target";
 
@@ -55,68 +46,29 @@
 
         String id = request.getSession().getId();
 
-        SessionModel session =
-            SessionModelFactory.getInstance().getSessionModel(request);
-
-            // 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);
-
-            client.doAdvance(
-                artifactFactory,
-                currentArtifact,
-                target
-            );
-
-            ArtifactDescription description = client.getCurrentStepDescription(
-                artifactFactory,
-                currentArtifact,
-                true
-            );
+        SessionModel session = SessionModelFactory.getInstance().getSessionModel(
+            request);
 
-            Node currentUI = description.getCurrentUI();
-            if (currentUI != null) {
-                XSLTransformer transformer = new XSLTransformer();
-                Node dynamicNode = (Node) XMLUtils.xpath(
-                    currentUI,
-                    XPATH_DYNAMIC_UI,
-                    XPathConstants.NODE,
-                    ArtifactNamespaceContext.INSTANCE
-                );
+        // TODO check if target is reachable
 
-                if (dynamicNode != null) {
-                    String dynamicUI = transformer.transform(
-                        dynamicNode, "UTF-8", request.getRealPath(
-                            "WEB-INF/config/templates/describe-ui.xsl")
-                    );
-                    request.setAttribute("ui", dynamicUI);
-                }
+        ArtifactDatabaseClientFactory f =
+            ArtifactDatabaseClientFactory.getInstance();
+        ArtifactDatabaseClient client   =
+            f.getArtifactDatabaseClient(getLocale(request));
 
-                Node staticNode = (Node) XMLUtils.xpath(
-                    currentUI,
-                    XPATH_STATIC_UI,
-                    XPathConstants.NODE,
-                    ArtifactNamespaceContext.INSTANCE
-                );
+        ArtifactObject artifactFactory = session.getSelectedArtifactFactory();
+        ArtifactObject currentArtifact = session.getCurrentArtifact();
 
-                if (staticNode != null){
-                    String staticUI = transformer.transform(
-                        staticNode, "UTF-8", request.getRealPath(
-                            "WEB-INF/config/templates/describe-ui-static.xsl")
-                    );
-                    request.setAttribute("staticui", staticUI);
-                }
-            }
+        String target = (String) request.getParameter(URL_STATE_KEY);
+        logger.debug("Step back to previous state: " + target);
+
+        client.doAdvance(
+            artifactFactory,
+            currentArtifact,
+            target
+        );
 
         return super.execute(mapping, form, request, response);
     }
 }
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :