@Test
// the main purpose of this test is to make sure we're not allocating 2GB of memory per shard
public void sizeIsZero() {
final int minDocCount = randomInt(1);
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.field(SINGLE_VALUED_FIELD_NAME)
.minDocCount(minDocCount)
.size(0))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(
terms.getBuckets().size(),
equalTo(minDocCount == 0 ? 105 : 100)); // 105 because of the other type
}
// Duel between histograms and scripted terms
public void testDuelTermsHistogram() throws Exception {
createIndex("idx");
final int numDocs = scaledRandomIntBetween(500, 5000);
final int maxNumTerms = randomIntBetween(10, 2000);
final int interval = randomIntBetween(1, 100);
final Integer[] values = new Integer[maxNumTerms];
for (int i = 0; i < values.length; ++i) {
values[i] = randomInt(maxNumTerms * 3) - maxNumTerms;
}
for (int i = 0; i < numDocs; ++i) {
XContentBuilder source =
jsonBuilder().startObject().field("num", randomDouble()).startArray("values");
final int numValues = randomInt(4);
for (int j = 0; j < numValues; ++j) {
source = source.value(randomFrom(values));
}
source = source.endArray().endObject();
client().prepareIndex("idx", "type").setSource(source).execute().actionGet();
}
assertNoFailures(
client()
.admin()
.indices()
.prepareRefresh("idx")
.setIndicesOptions(IndicesOptions.lenientExpandOpen())
.execute()
.get());
SearchResponse resp =
client()
.prepareSearch("idx")
.addAggregation(
terms("terms")
.field("values")
.collectMode(randomFrom(SubAggCollectionMode.values()))
.script("floor(_value / interval)")
.param("interval", interval)
.size(maxNumTerms))
.addAggregation(histogram("histo").field("values").interval(interval))
.execute()
.actionGet();
assertSearchResponse(resp);
Terms terms = resp.getAggregations().get("terms");
assertThat(terms, notNullValue());
Histogram histo = resp.getAggregations().get("histo");
assertThat(histo, notNullValue());
assertThat(terms.getBuckets().size(), equalTo(histo.getBuckets().size()));
for (Terms.Bucket bucket : terms.getBuckets()) {
final long key = bucket.getKeyAsNumber().longValue() * interval;
final Histogram.Bucket histoBucket = histo.getBucketByKey(key);
assertEquals(bucket.getDocCount(), histoBucket.getDocCount());
}
}
@Test
public void singleValuedField_OrderedBySingleValueSubAggregationAsc() throws Exception {
boolean asc = true;
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.field(SINGLE_VALUED_FIELD_NAME)
.order(Terms.Order.aggregation("avg_i", asc))
.subAggregation(avg("avg_i").field("i")))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(5));
int i = 0;
for (Terms.Bucket bucket : terms.getBuckets()) {
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
Avg avg = bucket.getAggregations().get("avg_i");
assertThat(avg, notNullValue());
assertThat(avg.getValue(), equalTo((double) i));
i++;
}
}
@Test
public void script_SingleValue_WithSubAggregator_Inherited() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.script("doc['" + SINGLE_VALUED_FIELD_NAME + "'].value")
.subAggregation(count("count")))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(5));
for (int i = 0; i < 5; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
ValueCount valueCount = bucket.getAggregations().get("count");
assertThat(valueCount, notNullValue());
assertThat(valueCount.getValue(), equalTo(1l));
}
}
@Test
public void stringTermsNestedIntoPerBucketAggregator() throws Exception {
// no execution hint so that the logic that decides whether or not to use ordinals is executed
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
filter("filter")
.filter(termFilter(MULTI_VALUED_FIELD_NAME, "val3"))
.subAggregation(terms("terms").field(MULTI_VALUED_FIELD_NAME)))
.execute()
.actionGet();
assertThat(response.getFailedShards(), equalTo(0));
Filter filter = response.getAggregations().get("filter");
Terms terms = filter.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(3));
for (int i = 2; i <= 4; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val" + i));
assertThat(bucket.getDocCount(), equalTo(i == 3 ? 2L : 1L));
}
}
@Test
public void script_MultiValued() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.script("doc['" + MULTI_VALUED_FIELD_NAME + "'].values"))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(6));
for (int i = 0; i < 6; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val" + i));
if (i == 0 || i == 5) {
assertThat(bucket.getDocCount(), equalTo(1l));
} else {
assertThat(bucket.getDocCount(), equalTo(2l));
}
}
}
@Test
public void unmapped() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx_unmapped")
.setTypes("type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.size(randomInt(5))
.field(SINGLE_VALUED_FIELD_NAME))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(0));
}
@Test
public void singleValueField_OrderedByTermDesc() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.field(SINGLE_VALUED_FIELD_NAME)
.order(Terms.Order.term(false)))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(5));
int i = 4;
for (Terms.Bucket bucket : terms.getBuckets()) {
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
i--;
}
}
@Test
public void partiallyUnmapped() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx", "idx_unmapped")
.setTypes("type")
.addAggregation(
terms("terms").executionHint(randomExecutionHint()).field(SINGLE_VALUED_FIELD_NAME))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(5));
for (int i = 0; i < 5; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
}
}
@Test
public void multiValuedField_WithValueScript_NotUnique() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.field(MULTI_VALUED_FIELD_NAME)
.script("_value.substring(0,3)"))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(1));
Terms.Bucket bucket = terms.getBucketByKey("val");
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val"));
assertThat(bucket.getDocCount(), equalTo(5l));
}
@Test
public void singleValueField_WithMaxSize() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.field(SINGLE_VALUED_FIELD_NAME)
.size(20)
.order(
Terms.Order.term(
true))) // we need to sort by terms cause we're checking the first 20
// values
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(20));
for (int i = 0; i < 20; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val" + Strings.padStart(i + "", 3, '0'));
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val" + Strings.padStart(i + "", 3, '0')));
assertThat(bucket.getDocCount(), equalTo(1l));
}
}
@Test
public void emptyAggregation() throws Exception {
prepareCreate("empty_bucket_idx")
.addMapping("type", SINGLE_VALUED_FIELD_NAME, "type=integer")
.execute()
.actionGet();
List<IndexRequestBuilder> builders = new ArrayList<IndexRequestBuilder>();
for (int i = 0; i < 2; i++) {
builders.add(
client()
.prepareIndex("empty_bucket_idx", "type", "" + i)
.setSource(
jsonBuilder().startObject().field(SINGLE_VALUED_FIELD_NAME, i * 2).endObject()));
}
indexRandom(true, builders.toArray(new IndexRequestBuilder[builders.size()]));
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field(SINGLE_VALUED_FIELD_NAME)
.interval(1l)
.minDocCount(0)
.subAggregation(terms("terms")))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2l));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, Matchers.notNullValue());
Histogram.Bucket bucket = histo.getBucketByKey(1l);
assertThat(bucket, Matchers.notNullValue());
Terms terms = bucket.getAggregations().get("terms");
assertThat(terms, Matchers.notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().isEmpty(), is(true));
}
@Test
public void multiValuedField_WithValueScript_WithInheritedSubAggregator() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("terms")
.executionHint(randomExecutionHint())
.field(MULTI_VALUED_FIELD_NAME)
.script("'foo_' + _value")
.subAggregation(count("count")))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(6));
for (int i = 0; i < 6; i++) {
Terms.Bucket bucket = terms.getBucketByKey("foo_val" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("foo_val" + i));
if (i == 0 | i == 5) {
assertThat(bucket.getDocCount(), equalTo(1l));
ValueCount valueCount = bucket.getAggregations().get("count");
assertThat(valueCount, notNullValue());
assertThat(valueCount.getValue(), equalTo(2l));
} else {
assertThat(bucket.getDocCount(), equalTo(2l));
ValueCount valueCount = bucket.getAggregations().get("count");
assertThat(valueCount, notNullValue());
assertThat("term[" + key(bucket) + "]", valueCount.getValue(), equalTo(4l));
}
}
}
// https://github.com/elasticsearch/elasticsearch/issues/6435
public void testReduce() throws Exception {
createIndex("idx");
final int value = randomIntBetween(0, 10);
indexRandom(true, client().prepareIndex("idx", "type").setSource("f", value));
ensureYellow("idx"); // only one document let's make sure all shards have an active primary
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
filter("filter")
.filter(FilterBuilders.matchAllFilter())
.subAggregation(
range("range")
.field("f")
.addUnboundedTo(6)
.addUnboundedFrom(6)
.subAggregation(sum("sum").field("f"))))
.execute()
.actionGet();
assertSearchResponse(response);
Filter filter = response.getAggregations().get("filter");
assertNotNull(filter);
assertEquals(1, filter.getDocCount());
Range range = filter.getAggregations().get("range");
assertThat(range, notNullValue());
assertThat(range.getName(), equalTo("range"));
assertThat(range.getBuckets().size(), equalTo(2));
Range.Bucket bucket = range.getBucketByKey("*-6.0");
assertThat(bucket, notNullValue());
assertThat(bucket.getKey(), equalTo("*-6.0"));
assertThat(bucket.getFrom().doubleValue(), equalTo(Double.NEGATIVE_INFINITY));
assertThat(bucket.getTo().doubleValue(), equalTo(6.0));
assertThat(bucket.getDocCount(), equalTo(value < 6 ? 1L : 0L));
Sum sum = bucket.getAggregations().get("sum");
assertEquals(value < 6 ? value : 0, sum.getValue(), 0d);
bucket = range.getBucketByKey("6.0-*");
assertThat(bucket, notNullValue());
assertThat(bucket.getKey(), equalTo("6.0-*"));
assertThat(bucket.getFrom().doubleValue(), equalTo(6.0));
assertThat(bucket.getTo().doubleValue(), equalTo(Double.POSITIVE_INFINITY));
assertThat(bucket.getDocCount(), equalTo(value >= 6 ? 1L : 0L));
sum = bucket.getAggregations().get("sum");
assertEquals(value >= 6 ? value : 0, sum.getValue(), 0d);
}
@Test
public void singleValueField_WithRegexFiltering_WithFlags() throws Exception {
// include without exclude
// we should be left with: val000, val001, val002, val003, val004, val005, val006, val007,
// val008, val009
// with case insensitive flag on the include regex
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(
terms("terms")
.field(SINGLE_VALUED_FIELD_NAME)
.include("VAL00.+", Pattern.CASE_INSENSITIVE))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(10));
for (int i = 0; i < 10; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val00" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val00" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
}
// include and exclude
// we should be left with: val002, val003, val004, val005, val006, val007, val008, val009
// with multi-flag masking on the exclude regex
response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(
terms("terms")
.field(SINGLE_VALUED_FIELD_NAME)
.include("val00.+")
.exclude(
"( val000 | VAL001 )#this is a comment",
Pattern.CASE_INSENSITIVE | Pattern.COMMENTS))
.execute()
.actionGet();
assertSearchResponse(response);
terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(8));
for (int i = 2; i < 10; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val00" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val00" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
}
// exclude without include
// we should be left with: val000, val001, val002, val003, val004, val005, val006, val007,
// val008, val009
// with a "no flag" flag
response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(
terms("terms").field(SINGLE_VALUED_FIELD_NAME).exclude("val0[1-9]+.+", 0))
.execute()
.actionGet();
assertSearchResponse(response);
terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(10));
for (int i = 0; i < 10; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val00" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val00" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
}
}
@Test
public void singleValueField_WithRegexFiltering() throws Exception {
// include without exclude
// we should be left with: val000, val001, val002, val003, val004, val005, val006, val007,
// val008, val009
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(terms("terms").field(SINGLE_VALUED_FIELD_NAME).include("val00.+"))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(10));
for (int i = 0; i < 10; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val00" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val00" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
}
// include and exclude
// we should be left with: val002, val003, val004, val005, val006, val007, val008, val009
response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(
terms("terms")
.field(SINGLE_VALUED_FIELD_NAME)
.include("val00.+")
.exclude("(val000|val001)"))
.execute()
.actionGet();
assertSearchResponse(response);
terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(8));
for (int i = 2; i < 10; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val00" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val00" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
}
// exclude without include
// we should be left with: val000, val001, val002, val003, val004, val005, val006, val007,
// val008, val009
response =
client()
.prepareSearch("idx")
.setTypes("high_card_type")
.addAggregation(terms("terms").field(SINGLE_VALUED_FIELD_NAME).exclude("val0[1-9]+.+"))
.execute()
.actionGet();
assertSearchResponse(response);
terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
assertThat(terms.getBuckets().size(), equalTo(10));
for (int i = 0; i < 10; i++) {
Terms.Bucket bucket = terms.getBucketByKey("val00" + i);
assertThat(bucket, notNullValue());
assertThat(key(bucket), equalTo("val00" + i));
assertThat(bucket.getDocCount(), equalTo(1l));
}
}
// Make sure that unordered, reversed, disjoint and/or overlapping ranges are supported
// Duel with filters
public void testRandomRanges() throws Exception {
final int numDocs = scaledRandomIntBetween(500, 5000);
final double[][] docs = new double[numDocs][];
for (int i = 0; i < numDocs; ++i) {
final int numValues = randomInt(5);
docs[i] = new double[numValues];
for (int j = 0; j < numValues; ++j) {
docs[i][j] = randomDouble() * 100;
}
}
createIndex("idx");
for (int i = 0; i < docs.length; ++i) {
XContentBuilder source = jsonBuilder().startObject().startArray("values");
for (int j = 0; j < docs[i].length; ++j) {
source = source.value(docs[i][j]);
}
source = source.endArray().endObject();
client().prepareIndex("idx", "type").setSource(source).execute().actionGet();
}
assertNoFailures(
client()
.admin()
.indices()
.prepareRefresh("idx")
.setIndicesOptions(IndicesOptions.lenientExpandOpen())
.execute()
.get());
final int numRanges = randomIntBetween(1, 20);
final double[][] ranges = new double[numRanges][];
for (int i = 0; i < ranges.length; ++i) {
switch (randomInt(2)) {
case 0:
ranges[i] = new double[] {Double.NEGATIVE_INFINITY, randomInt(100)};
break;
case 1:
ranges[i] = new double[] {randomInt(100), Double.POSITIVE_INFINITY};
break;
case 2:
ranges[i] = new double[] {randomInt(100), randomInt(100)};
break;
default:
throw new AssertionError();
}
}
RangeBuilder query = range("range").field("values");
for (int i = 0; i < ranges.length; ++i) {
String key = Integer.toString(i);
if (ranges[i][0] == Double.NEGATIVE_INFINITY) {
query.addUnboundedTo(key, ranges[i][1]);
} else if (ranges[i][1] == Double.POSITIVE_INFINITY) {
query.addUnboundedFrom(key, ranges[i][0]);
} else {
query.addRange(key, ranges[i][0], ranges[i][1]);
}
}
SearchRequestBuilder reqBuilder = client().prepareSearch("idx").addAggregation(query);
for (int i = 0; i < ranges.length; ++i) {
RangeFilterBuilder filter = FilterBuilders.rangeFilter("values");
if (ranges[i][0] != Double.NEGATIVE_INFINITY) {
filter = filter.from(ranges[i][0]);
}
if (ranges[i][1] != Double.POSITIVE_INFINITY) {
filter = filter.to(ranges[i][1]);
}
reqBuilder = reqBuilder.addAggregation(filter("filter" + i).filter(filter));
}
SearchResponse resp = reqBuilder.execute().actionGet();
Range range = resp.getAggregations().get("range");
for (int i = 0; i < ranges.length; ++i) {
long count = 0;
for (double[] values : docs) {
for (double value : values) {
if (value >= ranges[i][0] && value < ranges[i][1]) {
++count;
break;
}
}
}
final Range.Bucket bucket = range.getBucketByKey(Integer.toString(i));
assertEquals(bucket.getKey(), count, bucket.getDocCount());
final Filter filter = resp.getAggregations().get("filter" + i);
assertThat(filter.getDocCount(), equalTo(count));
}
}
@Test
public void singleValuedField_OrderedBySubAggregationAsc_MultiHierarchyLevels() throws Exception {
boolean asc = randomBoolean();
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("tags")
.executionHint(randomExecutionHint())
.field("tag")
.order(Terms.Order.aggregation("filter1>filter2>stats.max", asc))
.subAggregation(
filter("filter1")
.filter(FilterBuilders.matchAllFilter())
.subAggregation(
filter("filter2")
.filter(FilterBuilders.matchAllFilter())
.subAggregation(stats("stats").field("i")))))
.execute()
.actionGet();
assertSearchResponse(response);
Terms tags = response.getAggregations().get("tags");
assertThat(tags, notNullValue());
assertThat(tags.getName(), equalTo("tags"));
assertThat(tags.getBuckets().size(), equalTo(2));
Iterator<Terms.Bucket> iters = tags.getBuckets().iterator();
// the max for "more" is 2
// the max for "less" is 4
Terms.Bucket tag = iters.next();
assertThat(tag, notNullValue());
assertThat(key(tag), equalTo(asc ? "more" : "less"));
assertThat(tag.getDocCount(), equalTo(asc ? 3l : 2l));
Filter filter1 = tag.getAggregations().get("filter1");
assertThat(filter1, notNullValue());
assertThat(filter1.getDocCount(), equalTo(asc ? 3l : 2l));
Filter filter2 = filter1.getAggregations().get("filter2");
assertThat(filter2, notNullValue());
assertThat(filter2.getDocCount(), equalTo(asc ? 3l : 2l));
Stats stats = filter2.getAggregations().get("stats");
assertThat(stats, notNullValue());
assertThat(stats.getMax(), equalTo(asc ? 2.0 : 4.0));
tag = iters.next();
assertThat(tag, notNullValue());
assertThat(key(tag), equalTo(asc ? "less" : "more"));
assertThat(tag.getDocCount(), equalTo(asc ? 2l : 3l));
filter1 = tag.getAggregations().get("filter1");
assertThat(filter1, notNullValue());
assertThat(filter1.getDocCount(), equalTo(asc ? 2l : 3l));
filter2 = filter1.getAggregations().get("filter2");
assertThat(filter2, notNullValue());
assertThat(filter2.getDocCount(), equalTo(asc ? 2l : 3l));
stats = filter2.getAggregations().get("stats");
assertThat(stats, notNullValue());
assertThat(stats.getMax(), equalTo(asc ? 4.0 : 2.0));
}
@Test
public void singleValuedField_OrderedBySingleBucketSubAggregationAsc() throws Exception {
boolean asc = randomBoolean();
SearchResponse response =
client()
.prepareSearch("idx")
.setTypes("type")
.addAggregation(
terms("tags")
.executionHint(randomExecutionHint())
.field("tag")
.order(Terms.Order.aggregation("filter", asc))
.subAggregation(filter("filter").filter(FilterBuilders.matchAllFilter())))
.execute()
.actionGet();
assertSearchResponse(response);
Terms tags = response.getAggregations().get("tags");
assertThat(tags, notNullValue());
assertThat(tags.getName(), equalTo("tags"));
assertThat(tags.getBuckets().size(), equalTo(2));
Iterator<Terms.Bucket> iters = tags.getBuckets().iterator();
Terms.Bucket tag = iters.next();
assertThat(tag, notNullValue());
assertThat(key(tag), equalTo(asc ? "less" : "more"));
assertThat(tag.getDocCount(), equalTo(asc ? 2l : 3l));
Filter filter = tag.getAggregations().get("filter");
assertThat(filter, notNullValue());
assertThat(filter.getDocCount(), equalTo(asc ? 2l : 3l));
tag = iters.next();
assertThat(tag, notNullValue());
assertThat(key(tag), equalTo(asc ? "more" : "less"));
assertThat(tag.getDocCount(), equalTo(asc ? 3l : 2l));
filter = tag.getAggregations().get("filter");
assertThat(filter, notNullValue());
assertThat(filter.getDocCount(), equalTo(asc ? 3l : 2l));
}