public void testNestedAsSubAggregation() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
terms("top_values")
.field("value")
.size(100)
.collectMode(aggCollectionMode)
.subAggregation(
nested("nested", "nested")
.subAggregation(max("max_value").field("nested.value"))))
.execute()
.actionGet();
assertSearchResponse(response);
LongTerms values = response.getAggregations().get("top_values");
assertThat(values, notNullValue());
assertThat(values.getName(), equalTo("top_values"));
assertThat(values.getBuckets(), notNullValue());
assertThat(values.getBuckets().size(), equalTo(numParents));
for (int i = 0; i < numParents; i++) {
String topValue = "" + (i + 1);
assertThat(values.getBucketByKey(topValue), notNullValue());
Nested nested = values.getBucketByKey(topValue).getAggregations().get("nested");
assertThat(nested, notNullValue());
Max max = nested.getAggregations().get("max_value");
assertThat(max, notNullValue());
assertThat(
max.getValue(),
equalTo(numChildren[i] == 0 ? Double.NEGATIVE_INFINITY : (double) i + numChildren[i]));
}
}
public void testNestedWithSubTermsAgg() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
nested("nested", "nested")
.subAggregation(
terms("values")
.field("nested.value")
.size(100)
.collectMode(aggCollectionMode)))
.execute()
.actionGet();
assertSearchResponse(response);
long docCount = 0;
long[] counts = new long[numParents + 6];
for (int i = 0; i < numParents; ++i) {
for (int j = 0; j < numChildren[i]; ++j) {
final int value = i + 1 + j;
++counts[value];
++docCount;
}
}
int uniqueValues = 0;
for (long count : counts) {
if (count > 0) {
++uniqueValues;
}
}
Nested nested = response.getAggregations().get("nested");
assertThat(nested, notNullValue());
assertThat(nested.getName(), equalTo("nested"));
assertThat(nested.getDocCount(), equalTo(docCount));
assertThat((long) nested.getProperty("_count"), equalTo(docCount));
assertThat(nested.getAggregations().asList().isEmpty(), is(false));
LongTerms values = nested.getAggregations().get("values");
assertThat(values, notNullValue());
assertThat(values.getName(), equalTo("values"));
assertThat(values.getBuckets(), notNullValue());
assertThat(values.getBuckets().size(), equalTo(uniqueValues));
for (int i = 0; i < counts.length; ++i) {
final String key = Long.toString(i);
if (counts[i] == 0) {
assertNull(values.getBucketByKey(key));
} else {
Bucket bucket = values.getBucketByKey(key);
assertNotNull(bucket);
assertEquals(counts[i], bucket.getDocCount());
}
}
assertThat((LongTerms) nested.getProperty("values"), sameInstance(values));
}
@Override
public LongTerms readResult(StreamInput in) throws IOException {
LongTerms buckets = new LongTerms();
buckets.readFrom(in);
return buckets;
}