Hands-On Spring Security 5 for Reactive Applications

Setting up a custom AuthorityGranter

AuthorityGranter is entrusted to provide relevant roles to the authenticated user. We will be creating our own custom class by implementing org.springframework.security.authentication.jaas.AuthorityGranter:

public class JaasAuthorityGranter implements AuthorityGranter {    @Override    public Set<String> grant(Principal principal) {        if (principal.getName().equalsIgnoreCase("Authenticated_admin")) {            return Collections.singleton("ROLE_ADMIN");        } else if (principal.getName().equalsIgnoreCase("Authenticated_user")) {            return Collections.singleton("ROLE_USER");        }        return Collections.singleton("ROLE_USER");    }}

Being a sample implementation, in this class, we look at the logged in users username and grant a hard-coded ...