Spring Security - Third Edition

The SpringSecurityUserContext simplifications

We have updated CalendarUserDetailsService to return a UserDetails object that extends CalendarUser and implements UserDetails. This means that, rather than having to translate between the two objects, we can simply refer to a CalendarUser object. Update SpringSecurityUserContext as follows:

public class SpringSecurityUserContext implements UserContext {public CalendarUser getCurrentUser() {   SecurityContext context = SecurityContextHolder.getContext();   Authentication authentication = context.getAuthentication();   if(authentication == null) {      return null;   }   return (CalendarUser) authentication.getPrincipal();}public void setCurrentUser(CalendarUser user) {   Collection authorities = CalendarUserAuthorityUtils.createAuthorities(user); ...