}

    protected boolean isDuplicateTermRemoved() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return fessConfig.isCrawlerDocumentDuplicateTermRemoved();
    }

    protected int[] getSpaceChars() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return fessConfig.getCrawlerDocumentSpaceCharsAsArray();
    }

     * The value is, e.g. false <br>
     * @return The determination, true or false. (if not found, exception but basically no way)
     */
    boolean isCrawlerDocumentDuplicateTermRemoved();

    /**
     * Get the value for the key 'crawler.document.space.chars'. <br>