if (file.isFile()) {
            responseData.setHttpStatusCode(Constants.OK_STATUS_CODE);
            responseData.setCharSet(Constants.UTF_8);
            responseData.setLastModified(file.getTimestamp().getTime());

            // check file size
            responseData.setContentLength(file.getSize());
            checkMaxContentLength(responseData);

            if (file.getUser() != null) {

         */
        @Override
        public String getAsString(final Object value) {
            if (value instanceof Date) {
                return DEFAULT_DATE_PRINTER.print(((Date) value).getTime());
            }
            return null;
        }

        /**
         * Converts a string representation of a date to a Timestamp object.
         *