logger.warn("Failed to create parent directory: {}", parentFile.getAbsolutePath(), e);
            return false;
        }

        return process(thumbnailId, responseData -> {
            if (!isImageMimeType(responseData)) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Thumbnail is not image: {} : {}", thumbnailId, responseData.getUrl());
                }