content: /**
   * Copyright (c) 2010-present Abixen Systems. All rights reserved.
   *
   * This library is free software; you can redistribute it and/or modify it under
   * the terms of the GNU Lesser General Public License as published by the Free
   * Software Foundation; either version 2.1 of the License, or (at your option)
   * any later version.
   *
   * This library is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
   * details.
   */
  
  package com.abixen.platform.common.infrastructure.security;
  
  import org.springframework.data.domain.AuditorAware;
  import org.springframework.security.authentication.AnonymousAuthenticationToken;
  import org.springframework.security.core.Authentication;
  import org.springframework.security.core.context.SecurityContextHolder;
  
  import java.util.Optional;
  
  
  public class PlatformAuditorAware implements AuditorAware<Long> {
  
      @Override
      public Optional<Long> getCurrentAuditor() {
          PlatformUser authorizedUser = null;
          Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
          if (authentication != null && !(authentication instanceof AnonymousAuthenticationToken)) {
              authorizedUser = (PlatformUser) authentication.getPrincipal();
          }
  
          if (authorizedUser == null) {
              return Optional.empty();
          }
  
          return Optional.ofNullable(authorizedUser.getId());
      }
  }