}
        try {
            client.prepareUpdate().setIndex(settingsIndexName).setId(settingsId).setDocAsUpsert(true).setDoc(key, value)
                    .setRetryOnConflict(5).execute().actionGet(getIndexTimeout());
            client.admin().indices().prepareRefresh().setIndices(settingsIndexName).execute().actionGet(getIndicesTimeout());
        } catch (final Exception e) {

            builder.flush();
            client.prepareUpdate().setIndex(actualIndex).setId(id).setDocAsUpsert(true).setDoc(builder).execute()
                    .actionGet(settings.getIndexTimeout());
            client.admin().indices().prepareRefresh().setIndices(actualIndex).execute().actionGet(settings.getIndicesTimeout());
        } catch (final Exception e) {

        final SuggestWriterResult result = new SuggestWriterResult();
        try {
            client.prepareDelete().setIndex(index).setId(id).execute().actionGet(settings.getIndexTimeout());
        } catch (final Exception e) {
            result.addFailure(e);
        }
        return result;
    }

    @Override

        return new PopularWordsRequestBuilder(client).setIndex(getSearchAlias(index));
    }

    public RefreshResponse refresh() {
        return client.admin().indices().prepareRefresh().execute().actionGet(suggestSettings.getIndexTimeout());
    }

    public void shutdown() {
        threadPool.shutdownNow();
    }

    public boolean createIndexIfNothing() {
        try {
            boolean created = false;