Creating render URL with parameters using PortletStateManagerService

In the Using PortletStateManagerService for creating URLs from within the portlet blog i talked about how to create a URL to portal page from inside portlet.

But what if you want to create a RenderURL pointing to portlet on particular page and you also want to send some render parameters to that portlet. If thats the case you can use the following method

private String getPortletRenderURLWithParams(PortletRequest request,
      PortletResponse response) {
    PortletStateManager portletStateManager = null;
    try {
      portletStateManager = portletStateManagerService
          .getPortletStateManager(request, response);
      final URLFactory urlFct = portletStateManager.getURLFactory();
      final EngineURL url = urlFct.newURL(null);

      final SelectionAccessorFactory selectionAccessorFactory = portletStateManager
          .getAccessorFactory(SelectionAccessorFactory.class);
      SelectionAccessorController selectionAccessorCOntroller = selectionAccessorFactory
          .getSelectionController(url.getState());
      selectionAccessorCOntroller
          .setSelection("com.webspherenotes.popup.static");

      final PortletAccessorFactory portletFct = (PortletAccessorFactory) portletStateManager
          .getAccessorFactory(PortletAccessorFactory.class);
      final PortletAccessorController portletCtrl = portletFct
          .getPortletController("com.webspherenotes.popup.control",
              url.getState());
      portletCtrl.getParameters().put("userName",
          new String[] { "renderParameterSample" });

      String finalURL = url.toString();
      System.out.println("Portal Page URL " + finalURL);
      return finalURL;
    } catch (InvalidConstantException e) {
      e.printStackTrace(System.out);
    } catch (CannotInsertSelectionNodeException e) {
      e.printStackTrace(System.out);
    } catch (CannotCloneDocumentModelException e) {
      e.printStackTrace(System.out);
    } catch (CannotCreateDocumentException e) {
      e.printStackTrace(System.out);
    } catch (StateNotInRequestException e) {
      e.printStackTrace(System.out);
    } catch (MissingUniqueNameException e) {
      e.printStackTrace(System.out);
    } catch (UnknownUniqueNameException e) {
      e.printStackTrace(System.out);
    } catch (StateManagerException e) {
      e.printStackTrace(System.out);
    } catch (UnknownAccessorTypeException e) {
      e.printStackTrace(System.out);
    } catch (CannotInstantiateAccessorException e) {
      e.printStackTrace(System.out);
    } catch (CannotInstantiateURLFactoryException e) {
      e.printStackTrace(System.out);
    }
    return null;
  }

In this method first i am using SelectionAccessorFactory for creating a URL to page (com.webspherenotes.popup.static) then i am using PortalAccessorFactory to target portlet window whose unique name is com.webspherenotes.popup.control and then i am setting render parameters

Now when i click on the URL to open the portlet render url this is what i see