Passo 3a

FakeUserDetailsService.java

@Service
public class FakeUserDetailsService implements UserDetailsService {

    @Autowired
    private PessoaRepository personRepository;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        Pessoa person = personRepository.findByNome(username);
        if (person == null) {
            throw new UsernameNotFoundException("Username " + username + " não encontrado");
        }
        return new User(username, "password", getGrantedAuthorities(username));
    }

    private Collection<? extends GrantedAuthority> getGrantedAuthorities(String username) {
        Collection<? extends GrantedAuthority> authorities;
        if (username.equals("Rodrigo")) {
            authorities = asList(() -> "ROLE_ADMIN", () -> "ROLE_BASIC");
        } else {
            authorities = asList(() -> "ROLE_BASIC");
        }
        return authorities;
    }
}