package fr.tiogars.inception.config;
   
   import java.util.Optional;
   
   import org.springframework.data.domain.AuditorAware;
   import org.springframework.security.authentication.AnonymousAuthenticationToken;
   import org.springframework.security.authentication.AuthenticationCredentialsNotFoundException;
   import org.springframework.security.core.Authentication;
   import org.springframework.security.core.context.SecurityContextHolder;
  import org.springframework.stereotype.Component;
  
  /** Resolves audit actors from the authenticated security context. */
  @Component
  public class SecurityAuditorAware implements AuditorAware<String> {
  
      @Override
      public Optional<String> getCurrentAuditor() {
          Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
          if (authentication == null || !authentication.isAuthenticated()
                  || authentication instanceof AnonymousAuthenticationToken) {
              throw new AuthenticationCredentialsNotFoundException("An authenticated user is required for auditing");
          }
          return Optional.of(authentication.getName());
      }
  }