public final ImmutableList<ModelEntryT> getModelsByIds(
final ImmutableList<ModelIdT> ids,
final Logger logger,
final Marker logMarker,
final ModelFactory<ModelEntryT> modelFactory)
throws IoExceptionT {
if (ids.isEmpty()) {
logger.info(logMarker, "no model ids requested from index {}", indexName);
return ImmutableList.of();
}
logger.debug(logMarker, "getting models {} from index {}", ids, indexName);
try {
final MultiGetRequestBuilder requestBuilder = client.prepareMultiGet();
for (final ModelId id : ids) {
requestBuilder.add(indexName, documentType, id.toString());
}
final MultiGetResponse responses = requestBuilder.execute().actionGet();
final ImmutableList.Builder<ModelEntryT> modelsBuilder = ImmutableList.builder();
for (final MultiGetItemResponse response : responses.getResponses()) {
if (response.isFailed()) {
continue;
}
BytesReference sourceAsBytesRef;
try {
sourceAsBytesRef = response.getResponse().getSourceAsBytesRef();
} catch (final NullPointerException e) {
logger.debug(
logMarker,
"model {} actually missing, but hipsters don't know that",
response.getId());
continue;
}
try {
modelsBuilder.add(modelFactory.createModelEntry(response.getId(), sourceAsBytesRef));
} catch (final InvalidModelException e) {
logger.error(logMarker, "invalid model {} from index, ignoring: ", response.getId(), e);
continue;
}
}
return modelsBuilder.build();
} catch (final IndexNotFoundException e) {
logger.warn(logMarker, "tried to get models {} from missing index {}", ids, indexName);
return ImmutableList.of();
} catch (final ElasticsearchException e) {
throw exceptionFactory.newIoException(
e, String.format("error getting models %s from index %s", ids, indexName));
}
}
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()));
}
}