public void testMultiGet() throws ExecutionException, InterruptedException {
createIndexWithAlias();
ensureYellow("test");
int numDocs = iterations(10, 50);
IndexRequestBuilder[] indexRequestBuilders = new IndexRequestBuilder[numDocs];
for (int i = 0; i < numDocs; i++) {
indexRequestBuilders[i] =
client()
.prepareIndex("test", "type", Integer.toString(i))
.setSource("field", "value" + Integer.toString(i));
}
indexRandom(false, indexRequestBuilders);
int iterations = iterations(1, numDocs);
MultiGetRequestBuilder multiGetRequestBuilder = client().prepareMultiGet();
for (int i = 0; i < iterations; i++) {
multiGetRequestBuilder.add(
new MultiGetRequest.Item(
indexOrAlias(), "type", Integer.toString(randomInt(numDocs - 1))));
}
MultiGetResponse multiGetResponse = multiGetRequestBuilder.get();
assertThat(multiGetResponse.getResponses().length, equalTo(iterations));
for (int i = 0; i < multiGetResponse.getResponses().length; i++) {
MultiGetItemResponse multiGetItemResponse = multiGetResponse.getResponses()[i];
assertThat(multiGetItemResponse.isFailed(), equalTo(false));
assertThat(multiGetItemResponse.getIndex(), equalTo("test"));
assertThat(multiGetItemResponse.getType(), equalTo("type"));
assertThat(
multiGetItemResponse.getId(),
equalTo(multiGetRequestBuilder.request().getItems().get(i).id()));
assertThat(multiGetItemResponse.getResponse().isExists(), equalTo(true));
assertThat(multiGetItemResponse.getResponse().getIndex(), equalTo("test"));
assertThat(multiGetItemResponse.getResponse().getType(), equalTo("type"));
assertThat(
multiGetItemResponse.getResponse().getId(),
equalTo(multiGetRequestBuilder.request().getItems().get(i).id()));
}
}
public List<DOMAIN> getByKeys(Collection<KEY> keys) {
if (keys.isEmpty()) {
return Collections.emptyList();
}
List<DOMAIN> results = new ArrayList<>();
MultiGetRequestBuilder request = client.prepareMultiGet().setPreference("_local");
for (KEY key : keys) {
request.add(
new MultiGetRequest.Item(getIndexName(), getIndexType(), getKeyValue(key))
.routing(getKeyValue(key))
.fetchSourceContext(FetchSourceContext.FETCH_SOURCE));
}
MultiGetResponse response = request.get();
if (response.getResponses() != null) {
for (MultiGetItemResponse item : response.getResponses()) {
Map<String, Object> source = item.getResponse().getSource();
if (source != null) {
results.add(toDoc(source));
}
}
}
return results;
}