* where each line contains a MIME type to file type mapping in the format "mimetype=filetype".
     */
    @PostConstruct
    public void init() {
        StreamUtil.split(ComponentUtil.getFessConfig().getIndexFiletype(), "\n")
                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(s -> {
                    final String[] values = StringUtils.split(s, "=", 2);
                    if (values.length == 2) {

     *  <br>
     * comment: Mapping of MIME types to filetype labels for indexing.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFiletype();

    /**
     * Get the value for the key 'index.reindex.size'. <br>
     * The value is, e.g. 100 <br>
     * comment: Number of documents to process per reindex operation.