ObjectMapper mapper = new ObjectMapper();
BulkRequestBuilder brb = node.client().prepareBulk();
for (int i = 0; i < 1000; i++) {
Beer beer = BeerHelper.generate();
IndexRequest irq = new IndexRequest("meal", "beer", "beer_" + i);
String jsonString = mapper.writeValueAsString(beer);
irq.source(jsonString);
brb.add(irq);
}