if (logger.isDebugEnabled()) {
                    logger.debug("Thumbnail is not image: {} : {}", thumbnailId, responseData.getUrl());
                }
                updateThumbnailField(thumbnailId, StringUtil.EMPTY);
                return false;
            }
            boolean created = false;
            try (ImageInputStream input = ImageIO.createImageInputStream(responseData.getResponseBody())) {

                    if (outputFile.delete()) {
                        logger.info("Deleted: {}", outputFile.getAbsolutePath());
                    }
                    updateThumbnailField(thumbnailId, StringUtil.EMPTY);
                    return false;
                }

                if (logger.isDebugEnabled()) {
                    logger.debug("Thumbnail File: {}", outputPath);

        if (value != null && filePathMap.containsKey(value)) {
            return filePathMap.get(value);
        }
        return value;
    }

    protected void updateThumbnailField(final String thumbnailId, final String value) {
        // TODO bulk
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        try {