Get Navigation Nodes for specific Role

Question

Hi, after reading and doing Prakash Singh's weblog on creating a portal sitemap:
Create a SITEMAP for your portal
I want it to do more. After implementing it I saw that it loaded every role I have, which is exactly what it should do.  But I want to be able to specify the role, maybe as an iView property, and only load the roles specified if the user has access.  I am new to java programming and I can't figure out how to change the code to do this. Any help is appreciated. Will reward points. Thanks in advance.
Peter

Answer 1

Hi Peter,
In the doProcessBeforeOutput() method, Prakash gets all the initial nodes. Then, for each one he calls getRestofNodes().
Instead, in the doProcessBeforeOutput() method, just get a single role. Something like this:
//GET PROPERTY
String roleFilter = request.getComponentContext().getProfile().getProperty("myRole");
//IF NO ROLE IS SPECIFIED GET ALL ROLES
if (roleFilter == null || roleFilter.equals("") ) {
   .... do what Prakash does
//IF ROLE IS SPECIFIED GET THIS ROLE
else {
   try {
      INavigationService navigationservice = (INavigationService)PortalRuntime.getRuntimeResources().getService("com.sap.portal.navigation.service.navigation");
      INavigationNode myRole = navigationservice.getNode(getEnvironment(request), roleFilter);
      //COPY PRAKASH'S CODE FOR RENDERING ROLE
      //    (instead of rootNode variable use myRole)
      String title =  myRole.getTitle(Locale.ENGLISH);
      Tree tree = new Tree(title, "");
      tree.setRootNodeIsVisible(true);
      GridLayoutCell cell = new GridLayoutCell(myRole.getName());
      String text = "" + title + "";
      TreeNode root = new TreeNode(myRole.getName(), text);
      root.setEncode(false);
      root.setOpen(true);
      tree.setRootNode(root);
      getRestofNodes(myRole,root);
      cell.setVAlignment(CellVAlign.TOP);
      cell.setContent(tree);
      gl.addCell(1, 1, cell);
   catch (Exception e) {}
Add a property for the component in the portalapp.xml, like this:
Hope this helps.
Daniel