JSR 168 portlets with UIX as front end

Question

Hi Experts,
I have been writing a code that creates a wizard when a users gets into the Edit Mode. The first step of the wizard (edit.uix) displays a link, which is an action URL, whose target page is another uix page called "edit.uix". Pasting the code here:
//Portlet1.java
package mypackage20;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import java.util.Map;
import java.util.ResourceBundle;
import java.util.StringTokenizer;
import javax.portlet.*;
import mypackage20.resource.Portlet1Bundle;
import oracle.cabo.servlet.BajaContext;
import oracle.cabo.servlet.Page;
import oracle.cabo.servlet.event.EventResult;
import oracle.cabo.servlet.event.PageEvent;
public class Portlet1 extends GenericPortlet
public static final String OK_ACTION = "ok_action";
public static final String APPLY_ACTION = "apply_action";
public static final String PORTLETTITLE_KEY = "portletTitle";
public static String actionUrl = "";
public static String buildValue(PortletPreferences prefs, String key)
String[] values = prefs.getValues(key, null);
if (values == null || values.length < 1)
return "";
StringBuffer buff = new StringBuffer();
for (int i = 0;i < values.length;i++)
buff.append(values[(i)]);
if (i + 1 < values.length)
buff.append(',');
return buff.toString();
public void processAction(ActionRequest request, ActionResponse response) throws PortletException, IOException
// Determine which action.
String action = request.getParameter("ACTION");
if("FORM2".equals(action))
response.setRenderParameter("targetUrl", "/edit1.uix");
else if("SHOW".equals(action))
//response.setRenderParameter("targetUrl", "view.uix");
response.setPortletMode(PortletMode.VIEW);
protected String getTitle(RenderRequest request)
// Get the customized title, defaulting to the declared title.
PortletPreferences prefs = request.getPreferences();
return prefs.getValue(PORTLETTITLE_KEY, super.getTitle(request));
protected void doDispatch(RenderRequest request, RenderResponse response) throws PortletException, IOException
// Do nothing if window state is minimized.
WindowState state = request.getWindowState();
if (state.equals(WindowState.MINIMIZED))
super.doDispatch(request, response);
return;
// Get the content type for the response.
String contentType = request.getResponseContentType();
response.setContentType(contentType);
// Get the requested portlet mode.
PortletMode mode = request.getPortletMode();
// Reference a request dispatcher for dispatching to web resources
PortletContext context = getPortletContext();
PortletRequestDispatcher rd = null;
// Dispatch based on content type and portlet mode.
if (contentType.equals("text/html"))
if (mode.equals(PortletMode.VIEW))
rd = context.getRequestDispatcher("/view.uix");
else if (mode.equals(PortletMode.EDIT))
String targetUrl = request.getParameter("targetUrl");
if(targetUrl==null)
actionUrl = getEditFormSubmitURL(request,response,"FORM2","Start Wizard");
rd = context.getRequestDispatcher("/edit.uix");
else
actionUrl = getEditFormSubmitURL(request,response,"SHOW","Wizard Step 2 ");
rd = context.getRequestDispatcher(targetUrl);
else
super.doDispatch(request, response);
else
super.doDispatch(request, response);
if (rd != null)
rd.include(request, response);
else
super.doDispatch(request, response);
private String[] buildValueArray(String values)
if (values.indexOf(',') < 0)
return new String[] {values};
StringTokenizer st = new StringTokenizer(values, ",");
String[] valueArray = new String[(st.countTokens())];
int i = 0;
while (st.hasMoreTokens())
valueArray[(i)] = st.nextToken().trim();
i++;
return valueArray;
public static EventResult loadPage(BajaContext aBajaContext, Page aPage, PageEvent aPageEvent)
EventResult myEventResult = new EventResult(aPage);
myEventResult.setProperty("actionUrl",actionUrl);
return myEventResult;
public static EventResult loadPage1(BajaContext aBajaContext, Page aPage, PageEvent aPageEvent)
EventResult myEventResult = new EventResult(aPage);
myEventResult.setProperty("actionUrl",actionUrl);
return myEventResult;
protected String getEditFormSubmitURL(RenderRequest request, RenderResponse response, String actionForm,String title)
PortletURL nextUrl = response.createActionURL();
nextUrl.setParameter("ACTION", actionForm);
response.setTitle(title);
return nextUrl.toString();
//edit.uix
<?xml version="1.0" encoding="windows-1252"?>
<page xmlns="http://xmlns.oracle.com/uix/controller"
xmlns:ui="http://xmlns.oracle.com/uix/ui"
xmlns:ctrl="http://xmlns.oracle.com/uix/controller"
xmlns:html="http://www.w3.org/TR/REC-html40"
expressionLanguage="el">
<content>
<dataScope xmlns="http://xmlns.oracle.com/uix/ui">
<provider>
<!-- Add DataProviders (<data> elements) here -->
</provider>
<contents>
<document>
<metaContainer>
<!-- Set the page title -->
<head title=""/>
</metaContainer>
<contents>
<body>
<contents>
<link destination="${uix.eventResult.actionUrl}" text="Click here"/>
</contents>
</body>
</contents>
</document>
</contents>
</dataScope>
</content>
<handlers>
<!-- Add EventHandlers (<event> elements) here -->
<event name="*">
<method class="mypackage20.Portlet1"
method="loadPage"/>
</event>
</handlers>
</page>
The problem is that the parameter that I set through nextUrl.setParameter("ACTION", actionForm) , which means i set a parameter name "ACTION" with value="FORM2". This parameter is not available through String action = request.getParameter("ACTION"); in the processAction method when I click on the "Click here" link in the edit.uix.
However, I can retrieve one parameter from the action request, which is ";wsrp-interactionState", and whose value is "ACTION=FORM2"
I have no clue why is this happening. Any pointers in this regard are highly appreciated.
p.s : It works fine with JSP as the front end.
Thanks,
Parul

Answer 1

If you don't want to use the administration console to create channels based on the porltlets you deployed, you need to create a display profile fragment that create the channels and import using 'dpadmin'