--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv/src/main/java/de/intevation/gnv/action/NextArtifactStepAction.java	Wed Sep 16 07:44:26 2009 +0000
@@ -0,0 +1,79 @@
+/**
+ *
+ */
+package de.intevation.gnv.action;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+
+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;
+
+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.DefaultInputParameter;
+import de.intevation.gnv.artifactdatabase.objects.InputParameter;
+import de.intevation.gnv.util.XSLTransformer;
+
+/**
+ * @author Tim Englich <tim.englich@intevation.de>
+ *
+ */
+public class NextArtifactStepAction extends ArtifactDatabaseActionBase {
+    /**
+     * the logger, used to log exceptions and additonaly information
+     */
+    private static Logger log = Logger.getLogger(SelectArtifactFactoryAction.class);
+    
+    /**
+     * Constructor
+     */
+    public NextArtifactStepAction() {
+        super();
+    }
+
+    /**
+     * @see de.intevation.gnv.action.ArtifactDatabaseActionBase#execute(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
+     */
+    @Override
+    public ActionForward execute(ActionMapping mapping, ActionForm form,
+            HttpServletRequest request, HttpServletResponse response)
+            throws Exception {
+        SessionModel sm = SessionModelFactory.getInstance().getSessionModel(request);
+        ArtifactDescription ad = (ArtifactDescription)sm.getCurrentArtifact();
+        Collection<String> inputParameter = ad.getInputParameter();
+        Collection<InputParameter> ips = null;
+        if (inputParameter != null){
+            ips = new ArrayList<InputParameter>(inputParameter.size());
+            Iterator<String> it = inputParameter.iterator();
+            while (it.hasNext()){
+                String name = it.next();
+                String[] values = request.getParameterValues(name);
+                InputParameter ip = new DefaultInputParameter(name, values);
+                ips.add(ip);
+            }
+        }
+        // TODO: Woher kommt der zu erreichende Status;
+        String target = ad.getReachableStates().iterator().next();
+        ArtifactDatabaseClient adc = ArtifactDatabaseClientFactory.getInstance().getArtifactDatabaseClient();
+        ArtifactDescription artifactDescription = adc.doNextStep(sm.getSelectedArtifactFactory(), sm.getCurrentArtifact(), target, ips);
+        
+        XSLTransformer transformer = new XSLTransformer();
+        String ui = transformer.transform(artifactDescription.getCurrentUI(), "UTF-8", request.getRealPath("WEB-INF/config/templates/describe-ui.xsl"));
+        
+        request.setAttribute("ui", ui);
+        
+        return super.execute(mapping, form, request, response);
+    }
+    
+
+}