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

                    } catch (final IOException e) {
                        logger.warn("Failed to delete empty thumbnail file: {}", outputFile.getAbsolutePath(), e);
                    }
                    updateThumbnailField(thumbnailId, StringUtil.EMPTY);
                    return false;
                }

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

    }

    /**
     * Updates the thumbnail field in the search index.
     * @param thumbnailId The thumbnail ID.
     * @param value The thumbnail value to update.
     */
    protected void updateThumbnailField(final String thumbnailId, final String value) {
        // TODO bulk
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        try {
            ComponentUtil.getIndexingHelper()