protected LoadingCache<String, UserInfo> userInfoCache;

    protected String loggerName = "fess.log.searchlog";

    protected Logger searchLogLogger = null;

    protected ObjectMapper objectMapper = new ObjectMapper();

    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }