}
    }

    public boolean bulkUpdate(final Consumer<BulkRequestBuilder> consumer) {
        final BulkRequestBuilder builder = ComponentUtil.getSearchEngineClient().prepareBulk();
        consumer.accept(builder);
        try {
            final BulkResponse response = builder.execute().get();
            if (response.hasFailures()) {

                    if (hits.length == 0) {
                        break;
                    }

                    final BulkRequestBuilder bulkRequestBuiler = client.prepareBulk();
                    Stream.of(hits).map(SearchHit::getId).forEach(id -> bulkRequestBuiler.add(new DeleteRequest(index, id)));

        Client client = runner.client();
        int num = 10000;
        String indexName = "test";

        BulkRequestBuilder bulkRequestBuilder = client.prepareBulk();
        for (int i = 0; i < num; i++) {
            Map<String, Object> source = Collections.singletonMap("content", "test");