if (logger.isDebugEnabled()) {
            logger.debug("Add badword. {} badword: {}", arraySettings.arraySettingsIndexName, badWord);
        }

        final String validationError = getValidationError(badWord);
        if (validationError != null) {
            throw new IllegalArgumentException("Validation error. " + validationError);
        }
        arraySettings.add(BAD_WORD_SETTINGD_KEY, badWord);
    }

            @Override
            public void onFailure(final Exception e) {
                deferred.reject(e);
            }
        });
    }

    @Override
    protected String getValidationError() {
        return null;
    }

    protected QueryBuilder buildQuery() {
        final BoolQueryBuilder queryBuilder = QueryBuilders.boolQuery();

        this.skipDuplicateWords = skipDuplicateWords;
    }

    public void addLang(final String lang) {
        languages.add(lang);
    }

    @Override
    protected String getValidationError() {
        return null;
    }

    @Override
    protected void processRequest(final Client client, final Deferred<SuggestResponse> deferred) {