if (this.limitPercentage > 100) {
            this.limitPercentage = 100;
        } else if (this.limitPercentage < 1) {
            this.limitPercentage = 1;
        }
    }

    public void setLimitNumber(final long limitNumber) {
        this.limitNumber = limitNumber;
    }

    protected void addDocumentToQueue() {
        if (docCount.get() > getLimitDocNum(totalDocNum, limitPercentage, limitNumber)) {

            reader.setScrollSize(fessConfig.getSuggestSourceReaderScrollSizeAsInteger());
            reader.setLimitDocNumPercentage(fessConfig.getSuggestUpdateContentsLimitNumPercentage());
            reader.setLimitNumber(fessConfig.getSuggestUpdateContentsLimitNumAsInteger());
            reader.setLimitOfDocumentSize(fessConfig.getSuggestUpdateContentsLimitDocSizeAsInteger());