Updated to new PortalContext

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/tabular-data-gwt-service@141675 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionOp.java

@@ -102,5 +102,19 @@ public class SessionOp<T> {
 			httpSession.setAttribute(attribute, map);
 		}
 	}
+	
+	public void remove(HttpServletRequest httpRequest,
+			ServiceCredentials serviceCredentials, String attribute) {
+		HttpSession httpSession = httpRequest.getSession();
+
+		@SuppressWarnings("unchecked")
+		HashMap<String, T> map = (HashMap<String, T>) httpSession
+				.getAttribute(attribute);
+
+		if (map != null) {
+			map.remove(serviceCredentials.getScope());
+		} 
+	}
+	
 
 }