Controlling role visibility through code

Question

Hi All,
I need to be able to hide worksets and roles depending upon the user that logs in. I have managed to control iviews and pages using the following code
Hashtable env = new Hashtable();
env.put(
       Context.INITIAL_CONTEXT_FACTORY,
       IPcdContext.PCD_INITIAL_CONTEXT_FACTORY);
env.put(Context.SECURITY_PRINCIPAL, request.getUser());
env.put(Constants.REQUESTED_ASPECT, PcmConstants.ASPECT_SEMANTICS);
InitialContext iCtx = null;
try {
iCtx = new InitialContext(env);
     IiView result = null;
     Object currentObject  =  iCtx.lookup(iViewID);
     if (currentObject instanceof IiView) {
                           result = (IiView)currentObject;
     }else{
     result.putAttribute("com.sap.portal.navigation.Invisible",invisibleValue);
     result.save();
} catch (UnsupportedOperationException e) {
                                                  e.printStackTrace();
} catch (NamingException e) {
     e.printStackTrace();
} catch (ValidationException e) {
     e.printStackTrace();
} catch (IOException e) {
     e.printStackTrace();
After looking around some more, i thought there must be something similar for worksets and roles as well.
I found the use of IRoleService and IRoleDescriptor. But its only given how to create new roles using these. Can someone help me out on how to access existing roles so that I can set the property dynamically  for them?

Answer 1

Hi Malita,
The approach you have followed is not scalable. you should use PCD filter.
Refer to
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/5021a57d-0601-0010-6097-ec94a09c626d?QuickLink=index&overridelayout=true
Please note that you should use PCD filter only when there is no other option. Most of the times you can achieve the same result by tweaking your design.
Also refer to
Be Careful When Combining Navigation Cache, PCD Filter
to understand when you shouldn't be using PCD filter.
Let the community  know your exact requirement and the community should be able to suggest the best approach.
Thanks
Prashant