final GetIndexResponse response =
                client.admin().indices().prepareGetIndex().addIndices("*").execute().actionGet(suggestSettings.getIndicesTimeout());
        Stream.of(response.getIndices()).filter(s -> {
            if (!isSuggestIndex(s)) {
                return false;
            }
            final List<AliasMetadata> list = response.getAliases().get(s);
            if (list == null) {

        final String actualIndex = index + "." + type.toLowerCase(Locale.ENGLISH);
        try {
            SearchResponse response = client.prepareSearch().setIndices(actualIndex).setScroll(settings.getScrollTimeout())
                    .setQuery(QueryBuilders.termQuery(FieldNames.ARRAY_KEY, key)).setSize(500).execute()
                    .actionGet(settings.getSearchTimeout());

                    .setRetryOnConflict(5).execute().actionGet(getIndexTimeout());
            client.admin().indices().prepareRefresh().setIndices(settingsIndexName).execute().actionGet(getIndicesTimeout());
        } catch (final Exception e) {
            throw new SuggestSettingsException("Failed to update suggestSettings.", e);
        }
    }

            try {
                final SearchResponse response;
                if (scrollId == null) {
                    final SearchRequestBuilder builder = client.prepareSearch().setIndices(indexName).setScroll(settings.getScrollTimeout())
                            .setQuery(queryBuilder).setSize(scrollSize);
                    for (final SortBuilder<?> sortBuilder : sortList) {

    }

    protected Set<String> getAnalyzerNames() {
        final GetSettingsResponse response =
                client.admin().indices().prepareGetSettings().setIndices(analyzerSettingsIndexName).execute().actionGet();
        final Settings settings = response.getIndexToSettings().get(analyzerSettingsIndexName);