/**
     * Initialize the helper.
     */
    @PostConstruct
    public void init() {
        logger = LogManager.getLogger(loggerName);
        final String logFormat = ComponentUtil.getFessConfig().getAppAuditLogFormat();
        if (StringUtil.isBlank(logFormat)) {
            useEcsFormat = "docker".equals(getEnvMap().get("FESS_APP_TYPE"));
        } else if ("ecs".equals(logFormat)) {
            useEcsFormat = true;

     * The value is, e.g.  <br>
     * comment: Audit log format.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getAppAuditLogFormat();

    /**
     * Get the value for the key 'app.audit.log.format' as {@link Integer}. <br>
     * The value is, e.g.  <br>
     * comment: Audit log format.