Identifying list of portlets on a page

There might be some scenarios where you want to get list of all the portlets on a portal page.

Following code snipped would be helpful for you to get list of portlets on a page.

private void listPortletsOnPage(ContentModel model, RenderRequest request, RenderResponse response) {

        try {
            ContentModel model = getContentModel(request, response)
            Locator locator = model.getLocator();
            ObjectID oID = PortletURLHelper.getCurrentPage(request, response);
            ContentPage cPage = (ContentPage)locator.findByID(oID);
            PrintWriter out = response.getWriter();

            List allPortlets = getPortletsOnPage(model, cPage);

            Iterator it = allPortlets.iterator();

            while(it.hasNext()){
                PortletWindow window = (PortletWindow)it.next();
                out.print("PortletWindow " + window.getObjectID() + "
");
            }
        } catch (StateException e) {
           
            e.printStackTrace();
        } catch (NamingException e) {
           
            e.printStackTrace();
        } catch (IOException e) {
           
            e.printStackTrace();
        }

    }
       
   
    private ContentModel getContentModel(RenderRequest renderRequest, RenderResponse renderResponse) {
   
        try {
            ContentModelProvider provider = (ContentModelProvider) psh.getPortletService(ContentModelProvider.class);
            return provider.getContentModel(renderRequest, renderResponse);
        } catch (PortletServiceUnavailableException e) {
           
            e.printStackTrace();
        } catch (ModelException e) {
           
            e.printStackTrace();
        }

        return null;

    }
   
       
    public List getPortletsOnPage(final ContentModel aContentModel, final ContentPage aPage) {
        List result = Collections.EMPTY_LIST;
        final LayoutModel aLayoutModel = aContentModel.getLayoutModel(aPage);
        if (aLayoutModel != null) {
            result = new ArrayList();
            try {
                collector(aLayoutModel, aLayoutModel.getRoot(), result);
            } catch (ModelException e) {
                e.printStackTrace();
            }
        }
        return result;
    }