protected DiskFileItemFactory createDiskFileItemFactory() {
        final int sizeThreshold = getSizeThreshold();
        final File repository = createRepositoryFile();
        return DiskFileItemFactory.builder().setBufferSize(sizeThreshold).setFile(repository).get();
    }

    protected int getSizeThreshold() {
        return ComponentUtil.getFessConfig().getHttpFileuploadThresholdSizeAsInteger();
    }