throw new IllegalArgumentException("Failed to read " + filePath, e);
                }

                reloadInterval = settings.getAsTime("reload_interval", TimeValue.timeValueMinutes(1)).getMillis();

            } else {
                reader = Analysis.getReaderFromFile(env, settings, "synonyms_path");
            }
        } else {
            reader = new StringReader("");
        }

            keywordPath = environment.configDir().resolve(path);
        } else {
            keywordPath = null;
        }

        reloadInterval = settings.getAsTime("reload_interval", TimeValue.timeValueMinutes(1)).getMillis();
    }

    @Override
    public TokenStream create(final TokenStream tokenStream) {
        if (keywordPath == null) {
            return tokenStream;
        }

        } else {
            stopwordPath = null;
        }

        ignoreCase = settings.getAsBoolean("ignore_case", false);
        reloadInterval = settings.getAsTime("reload_interval", TimeValue.timeValueMinutes(1)).getMillis();
    }

    @Override
    public TokenStream create(final TokenStream tokenStream) {
        if (stopwordPath == null) {
            return tokenStream;
        }

        final long totalHitsValue = totalHits != null ? totalHits.value() : 0;
        targetList.setTotalHits(totalHitsValue);
        targetList.setTookInMillis(response.getTook().getMillis());
        if (totalHitsValue != 0) {
            try {
                for (final SearchHit searchHit : hits.getHits()) {
                    final OpenSearchAccessResult target = new OpenSearchAccessResult();

            if (detail) {
                items.add(SuggestItem.parseSource(source));
            }
        }

        return new PopularWordsResponse(index, searchResponse.getTook().getMillis(), words, searchResponse.getHits().getTotalHits().value(),
                items);
    }

                }
            }
        }
        firstWords.addAll(secondWords);
        firstItems.addAll(secondItems);
        return new SuggestResponse(index, searchResponse.getTook().getMillis(), firstWords, searchResponse.getHits().getTotalHits().value(),
                firstItems);
    }

    /**
     * Checks if the first word matches.
     * @param singleWordQuery True if it is a single word query.

        final long totalHitsValue = totalHits != null ? totalHits.value() : 0;
        targetList.setTotalHits(totalHitsValue);
        targetList.setTookInMillis(response.getTook().getMillis());
        if (totalHitsValue != 0) {
            try {
                for (final SearchHit searchHit : hits.getHits()) {
                    final Map<String, Object> source = searchHit.getSourceAsMap();