com.ibm.portal.state.accesscheck
Interface CheckedEngineURL

All Superinterfaces:

Disposable, DisposableURL, EngineURL, URL

public interface CheckedEngineURL
extends EngineURL

In addition to the functionality of EngineURL the CheckedEngineURL allows setting access control checks that must be fullfilled before the URL is generated. If this access control check fails write, writeCopy, and writeRelease do not produce any output and toString returns an empty string.

Code sample how to use checked URLs that only creates an URL for users with Edit permission:

   // ----- this code needs to be executed only once ----- 
   // get an instance of the state manager service 
   StateManagerService service =  (StateManagerService) 
        ServiceManager.getService(StateManagerService.class, true); 
   // get the state manager from service for this thread 
   StateManager manager = service.getStateManager(); 
   // fetch the StateAccessorFactory 
   StateAccessorFactory stateFactory = (StateAccessorFactory) 
       manager.getAccessorFactory(StateAccessorFactory.class); 
   // fetch the CheckedURLAccessorFactory 
   CheckedURLAccessorFactory urlFactory = (CheckedURLAccessorFactory) 
       manager.getAccessorFactory(CheckedURLAccessorFactory.class); 
   // ------------------------------------------------------
 
   // ----- this code needs to be done per request ----- 
   // (1) create a new engine url which encodes the current state 
   StateAccessor stateAcc = stateFactory.getState();
   StateHolder state = stateAcc.getStateHolder(request);
   stateAcc.dispose();
   CheckedEngineURL url = urlFactory.newURL(request, state, null);
   // (2) set an access control check
   url.setCheck(Constants.EDIT_PAGE, request.getUserPrincipal()); 
   // (3) write to the response stream directly 
   url.writeDispose(outputStream);
 

Since:

5.1

Method Summary

void	setCheck(Constants.AccessCheck check, java.security.Principal user) Specifies that a special access check will be performed before the URL is generated.

Methods inherited from interface com.ibm.portal.state.EngineURL

addFragmentID, getState, setProtected, setSecure, toString, java.io.Writer)">writeCopy, writeDispose

Methods inherited from interface com.ibm.portal.URL

java.io.Writer)">write

Methods inherited from interface com.ibm.portal.Disposable

dispose

Method Detail

setCheck

void setCheck(Constants.AccessCheck check,
              java.security.Principal user)

Specifies that a special access check will be performed before the URL is generated.

Not setting any access check on the URL results in the same behavoir as if the access check is NO_CHECK: the URL is always generated.

If the access control check fails no URL is generated.

Parameters:

check - Constant identifying the check (must not be null)

user - Principal to check the permission for (must not be null)