class StopWordsRemoverMapper extends SISOMapper {

    @Override
    public void open(){
        this.stopWordsSet = new HashSet<>();
        String[] stopWords = this.params.get(StopWordsRemoverParams.STOP_WORDS);
        if (null != stopWords) {
            for (String stopWord : stopWords) {
                stopWordsSet.add(caseSensitive ? stopWord : stopWord.toLowerCase());
            }
        }
        loadDefaultStopWords();
    }

    public  StopWordsRemoverMapper(TableSchema dataSchema, Params params);

}