@Test
public void testEmptyAggregation() throws Exception {
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(1l)
.emptyBuckets(true)
.subAggregation(min("min")))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2l));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, notNullValue());
Histogram.Bucket bucket = histo.getByKey(1l);
assertThat(bucket, notNullValue());
Min min = bucket.getAggregations().get("min");
assertThat(min, notNullValue());
assertThat(min.getName(), equalTo("min"));
assertThat(min.getValue(), equalTo(Double.POSITIVE_INFINITY));
}
@Test
public void emptyAggregation() throws Exception {
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(1l)
.minDocCount(0)
.subAggregation(filters("filters").filter("all", matchAllQuery())))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2l));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, Matchers.notNullValue());
Histogram.Bucket bucket = histo.getBuckets().get(1);
assertThat(bucket, Matchers.notNullValue());
Filters filters = bucket.getAggregations().get("filters");
assertThat(filters, notNullValue());
Filters.Bucket all = filters.getBucketByKey("all");
assertThat(all, Matchers.notNullValue());
assertThat(all.getKeyAsString(), equalTo("all"));
assertThat(all.getDocCount(), is(0l));
}
@Override
@Test
public void testEmptyAggregation() throws Exception {
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(1l)
.minDocCount(0)
.subAggregation(max("max")))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2l));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, notNullValue());
Histogram.Bucket bucket = histo.getBuckets().get(1);
assertThat(bucket, notNullValue());
Max max = bucket.getAggregations().get("max");
assertThat(max, notNullValue());
assertThat(max.getName(), equalTo("max"));
assertThat(max.getValue(), equalTo(Double.NEGATIVE_INFINITY));
}
@Test
public void singleValue_WithPositiveOffset() throws Exception {
prepareIndex(date("2014-03-11T00:00:00+00:00"), 5, 1, 0);
SearchResponse response =
client()
.prepareSearch("idx2")
.setQuery(matchAllQuery())
.addAggregation(
dateHistogram("date_histo")
.field("date")
.offset("2h")
.format(DATE_FORMAT)
.interval(DateHistogramInterval.DAY))
.execute()
.actionGet();
assertThat(response.getHits().getTotalHits(), equalTo(5l));
Histogram histo = response.getAggregations().get("date_histo");
List<? extends Histogram.Bucket> buckets = histo.getBuckets();
assertThat(buckets.size(), equalTo(2));
checkBucketFor(buckets.get(0), new DateTime(2014, 3, 10, 2, 0, DateTimeZone.UTC), 2l);
checkBucketFor(buckets.get(1), new DateTime(2014, 3, 11, 2, 0, DateTimeZone.UTC), 3l);
}
public void testMultiValuedField() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
dateHistogram("histo")
.field("dates")
.dateHistogramInterval(DateHistogramInterval.MONTH)
.minDocCount(0)
.subAggregation(derivative("deriv", "_count")))
.execute()
.actionGet();
assertSearchResponse(response);
Histogram deriv = response.getAggregations().get("histo");
assertThat(deriv, notNullValue());
assertThat(deriv.getName(), equalTo("histo"));
List<? extends Bucket> buckets = deriv.getBuckets();
assertThat(buckets.size(), equalTo(4));
DateTime key = new DateTime(2012, 1, 1, 0, 0, DateTimeZone.UTC);
Histogram.Bucket bucket = buckets.get(0);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(1L));
assertThat(bucket.getAggregations().asList().isEmpty(), is(true));
SimpleValue docCountDeriv = bucket.getAggregations().get("deriv");
assertThat(docCountDeriv, nullValue());
key = new DateTime(2012, 2, 1, 0, 0, DateTimeZone.UTC);
bucket = buckets.get(1);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(3L));
assertThat(bucket.getAggregations().asList().isEmpty(), is(false));
docCountDeriv = bucket.getAggregations().get("deriv");
assertThat(docCountDeriv, notNullValue());
assertThat(docCountDeriv.value(), equalTo(2.0));
key = new DateTime(2012, 3, 1, 0, 0, DateTimeZone.UTC);
bucket = buckets.get(2);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(5L));
assertThat(bucket.getAggregations().asList().isEmpty(), is(false));
docCountDeriv = bucket.getAggregations().get("deriv");
assertThat(docCountDeriv, notNullValue());
assertThat(docCountDeriv.value(), equalTo(2.0));
key = new DateTime(2012, 4, 1, 0, 0, DateTimeZone.UTC);
bucket = buckets.get(3);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(3L));
assertThat(bucket.getAggregations().asList().isEmpty(), is(false));
docCountDeriv = bucket.getAggregations().get("deriv");
assertThat(docCountDeriv, notNullValue());
assertThat(docCountDeriv.value(), equalTo(-2.0));
}
public void testEmptyAggregation() throws Exception {
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(1L)
.minDocCount(0)
.subAggregation(nested("nested", "nested")))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2L));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, Matchers.notNullValue());
Histogram.Bucket bucket = histo.getBuckets().get(1);
assertThat(bucket, Matchers.notNullValue());
Nested nested = bucket.getAggregations().get("nested");
assertThat(nested, Matchers.notNullValue());
assertThat(nested.getName(), equalTo("nested"));
assertThat(nested.getDocCount(), is(0L));
}
@Override
public void testEmptyAggregation() throws Exception {
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(1l)
.minDocCount(0)
.subAggregation(avg("avg")))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2l));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, notNullValue());
Histogram.Bucket bucket = histo.getBuckets().get(1);
assertThat(bucket, notNullValue());
Avg avg = bucket.getAggregations().get("avg");
assertThat(avg, notNullValue());
assertThat(avg.getName(), equalTo("avg"));
assertThat(Double.isNaN(avg.getValue()), is(true));
}
void assertBasicAggregationWorks(String indexName) {
// histogram on a long
SearchResponse searchRsp =
client()
.prepareSearch(indexName)
.addAggregation(AggregationBuilders.histogram("histo").field("long_sort").interval(10))
.get();
ElasticsearchAssertions.assertSearchResponse(searchRsp);
Histogram histo = searchRsp.getAggregations().get("histo");
assertNotNull(histo);
long totalCount = 0;
for (Histogram.Bucket bucket : histo.getBuckets()) {
totalCount += bucket.getDocCount();
}
assertEquals(totalCount, searchRsp.getHits().getTotalHits());
// terms on a boolean
searchRsp =
client()
.prepareSearch(indexName)
.addAggregation(AggregationBuilders.terms("bool_terms").field("bool"))
.get();
Terms terms = searchRsp.getAggregations().get("bool_terms");
totalCount = 0;
for (Terms.Bucket bucket : terms.getBuckets()) {
totalCount += bucket.getDocCount();
}
assertEquals(totalCount, searchRsp.getHits().getTotalHits());
}
@Override
public void testEmptyAggregation() throws Exception {
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(1L)
.minDocCount(0)
.subAggregation(stats("stats").field("value")))
.execute()
.actionGet();
assertShardExecutionState(searchResponse, 0);
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2L));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, notNullValue());
Histogram.Bucket bucket = histo.getBuckets().get(1);
assertThat(bucket, notNullValue());
Stats stats = bucket.getAggregations().get("stats");
assertThat(stats, notNullValue());
assertThat(stats.getName(), equalTo("stats"));
assertThat(stats.getCount(), equalTo(0L));
assertThat(stats.getSum(), equalTo(0.0));
assertThat(stats.getMin(), equalTo(Double.POSITIVE_INFINITY));
assertThat(stats.getMax(), equalTo(Double.NEGATIVE_INFINITY));
assertThat(Double.isNaN(stats.getAvg()), is(true));
}
public void testOrderBySubAggregation() {
boolean asc = randomBoolean();
SearchResponse searchResponse =
client()
.prepareSearch("idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(2L)
.subAggregation(
randomCompression(
percentiles("percentiles").field("value").percentiles(99)))
.order(Order.aggregation("percentiles", "99", asc)))
.execute()
.actionGet();
assertHitCount(searchResponse, 10);
Histogram histo = searchResponse.getAggregations().get("histo");
double previous = asc ? Double.NEGATIVE_INFINITY : Double.POSITIVE_INFINITY;
for (Histogram.Bucket bucket : histo.getBuckets()) {
Percentiles percentiles = bucket.getAggregations().get("percentiles");
double p99 = percentiles.percentile(99);
if (asc) {
assertThat(p99, greaterThanOrEqualTo(previous));
} else {
assertThat(p99, lessThanOrEqualTo(previous));
}
previous = p99;
}
}
@Override
public void testEmptyAggregation() throws Exception {
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field("value")
.interval(1L)
.minDocCount(0)
.subAggregation(
randomCompression(percentiles("percentiles").field("value"))
.percentiles(10, 15)))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(2L));
Histogram histo = searchResponse.getAggregations().get("histo");
assertThat(histo, notNullValue());
Histogram.Bucket bucket = histo.getBuckets().get(1);
assertThat(bucket, notNullValue());
Percentiles percentiles = bucket.getAggregations().get("percentiles");
assertThat(percentiles, notNullValue());
assertThat(percentiles.getName(), equalTo("percentiles"));
assertThat(percentiles.percentile(10), equalTo(Double.NaN));
assertThat(percentiles.percentile(15), equalTo(Double.NaN));
}
// 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 testDocCount_asSubAgg() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
terms("terms")
.field("tag")
.order(Order.term(true))
.subAggregation(
histogram("histo")
.field(SINGLE_VALUED_FIELD_NAME)
.interval(interval)
.extendedBounds((long) minRandomValue, (long) maxRandomValue))
.subAggregation(maxBucket("max_bucket").setBucketsPaths("histo>_count")))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
List<Terms.Bucket> termsBuckets = terms.getBuckets();
assertThat(termsBuckets.size(), equalTo(interval));
for (int i = 0; i < interval; ++i) {
Terms.Bucket termsBucket = termsBuckets.get(i);
assertThat(termsBucket, notNullValue());
assertThat((String) termsBucket.getKey(), equalTo("tag" + (i % interval)));
Histogram histo = termsBucket.getAggregations().get("histo");
assertThat(histo, notNullValue());
assertThat(histo.getName(), equalTo("histo"));
List<? extends Bucket> buckets = histo.getBuckets();
List<String> maxKeys = new ArrayList<>();
double maxValue = Double.NEGATIVE_INFINITY;
for (int j = 0; j < numValueBuckets; ++j) {
Histogram.Bucket bucket = buckets.get(j);
assertThat(bucket, notNullValue());
assertThat(((Number) bucket.getKey()).longValue(), equalTo((long) j * interval));
if (bucket.getDocCount() > maxValue) {
maxValue = bucket.getDocCount();
maxKeys = new ArrayList<>();
maxKeys.add(bucket.getKeyAsString());
} else if (bucket.getDocCount() == maxValue) {
maxKeys.add(bucket.getKeyAsString());
}
}
InternalBucketMetricValue maxBucketValue = termsBucket.getAggregations().get("max_bucket");
assertThat(maxBucketValue, notNullValue());
assertThat(maxBucketValue.getName(), equalTo("max_bucket"));
assertThat(maxBucketValue.value(), equalTo(maxValue));
assertThat(maxBucketValue.keys(), equalTo(maxKeys.toArray(new String[maxKeys.size()])));
}
}
public void testHistogram() {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(histogram("my_histogram").field("long").interval(5).missing(7))
.get();
assertSearchResponse(response);
Histogram histogram = response.getAggregations().get("my_histogram");
assertEquals(2, histogram.getBuckets().size());
assertEquals(0L, histogram.getBuckets().get(0).getKey());
assertEquals(1, histogram.getBuckets().get(0).getDocCount());
assertEquals(5L, histogram.getBuckets().get(1).getKey());
assertEquals(1, histogram.getBuckets().get(1).getDocCount());
response =
client()
.prepareSearch("idx")
.addAggregation(histogram("my_histogram").field("long").interval(5).missing(3))
.get();
assertSearchResponse(response);
histogram = response.getAggregations().get("my_histogram");
assertEquals(1, histogram.getBuckets().size());
assertEquals(0L, histogram.getBuckets().get(0).getKey());
assertEquals(2, histogram.getBuckets().get(0).getDocCount());
}
public void testDateHistogram() {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
dateHistogram("my_histogram")
.field("date")
.interval(DateHistogramInterval.YEAR)
.missing("2014-05-07"))
.get();
assertSearchResponse(response);
Histogram histogram = response.getAggregations().get("my_histogram");
assertEquals(2, histogram.getBuckets().size());
assertEquals("2014-01-01T00:00:00.000Z", histogram.getBuckets().get(0).getKeyAsString());
assertEquals(1, histogram.getBuckets().get(0).getDocCount());
assertEquals("2015-01-01T00:00:00.000Z", histogram.getBuckets().get(1).getKeyAsString());
assertEquals(1, histogram.getBuckets().get(1).getDocCount());
response =
client()
.prepareSearch("idx")
.addAggregation(
dateHistogram("my_histogram")
.field("date")
.interval(DateHistogramInterval.YEAR)
.missing("2015-05-07"))
.get();
assertSearchResponse(response);
histogram = response.getAggregations().get("my_histogram");
assertEquals(1, histogram.getBuckets().size());
assertEquals("2015-01-01T00:00:00.000Z", histogram.getBuckets().get(0).getKeyAsString());
assertEquals(2, histogram.getBuckets().get(0).getDocCount());
}
@Test
public void testMetric_asSubAggOfSingleBucketAgg() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
filter("filter")
.filter(termQuery("tag", "tag0"))
.subAggregation(
histogram("histo")
.field(SINGLE_VALUED_FIELD_NAME)
.interval(interval)
.extendedBounds((long) minRandomValue, (long) maxRandomValue)
.subAggregation(sum("sum").field(SINGLE_VALUED_FIELD_NAME)))
.subAggregation(maxBucket("max_bucket").setBucketsPaths("histo>sum")))
.execute()
.actionGet();
assertSearchResponse(response);
Filter filter = response.getAggregations().get("filter");
assertThat(filter, notNullValue());
assertThat(filter.getName(), equalTo("filter"));
Histogram histo = filter.getAggregations().get("histo");
assertThat(histo, notNullValue());
assertThat(histo.getName(), equalTo("histo"));
List<? extends Bucket> buckets = histo.getBuckets();
List<String> maxKeys = new ArrayList<>();
double maxValue = Double.NEGATIVE_INFINITY;
for (int j = 0; j < numValueBuckets; ++j) {
Histogram.Bucket bucket = buckets.get(j);
assertThat(bucket, notNullValue());
assertThat(((Number) bucket.getKey()).longValue(), equalTo((long) j * interval));
if (bucket.getDocCount() != 0) {
Sum sum = bucket.getAggregations().get("sum");
assertThat(sum, notNullValue());
if (sum.value() > maxValue) {
maxValue = sum.value();
maxKeys = new ArrayList<>();
maxKeys.add(bucket.getKeyAsString());
} else if (sum.value() == maxValue) {
maxKeys.add(bucket.getKeyAsString());
}
}
}
InternalBucketMetricValue maxBucketValue = filter.getAggregations().get("max_bucket");
assertThat(maxBucketValue, notNullValue());
assertThat(maxBucketValue.getName(), equalTo("max_bucket"));
assertThat(maxBucketValue.value(), equalTo(maxValue));
assertThat(maxBucketValue.keys(), equalTo(maxKeys.toArray(new String[maxKeys.size()])));
}
public void testUnmappedHistogram() {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
histogram("my_histogram").field("non-existing_field").interval(5).missing(12))
.get();
assertSearchResponse(response);
Histogram histogram = response.getAggregations().get("my_histogram");
assertEquals(1, histogram.getBuckets().size());
assertEquals(10L, histogram.getBuckets().get(0).getKey());
assertEquals(2, histogram.getBuckets().get(0).getDocCount());
}
public void testSingleValuedFieldNormalised() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
dateHistogram("histo")
.field("date")
.dateHistogramInterval(DateHistogramInterval.MONTH)
.minDocCount(0)
.subAggregation(derivative("deriv", "_count").unit(DateHistogramInterval.DAY)))
.execute()
.actionGet();
assertSearchResponse(response);
Histogram deriv = response.getAggregations().get("histo");
assertThat(deriv, notNullValue());
assertThat(deriv.getName(), equalTo("histo"));
List<? extends Bucket> buckets = deriv.getBuckets();
assertThat(buckets.size(), equalTo(3));
DateTime key = new DateTime(2012, 1, 1, 0, 0, DateTimeZone.UTC);
Histogram.Bucket bucket = buckets.get(0);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(1L));
Derivative docCountDeriv = bucket.getAggregations().get("deriv");
assertThat(docCountDeriv, nullValue());
key = new DateTime(2012, 2, 1, 0, 0, DateTimeZone.UTC);
bucket = buckets.get(1);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(2L));
docCountDeriv = bucket.getAggregations().get("deriv");
assertThat(docCountDeriv, notNullValue());
assertThat(docCountDeriv.value(), closeTo(1d, 0.00001));
assertThat(docCountDeriv.normalizedValue(), closeTo(1d / 31d, 0.00001));
key = new DateTime(2012, 3, 1, 0, 0, DateTimeZone.UTC);
bucket = buckets.get(2);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(3L));
docCountDeriv = bucket.getAggregations().get("deriv");
assertThat(docCountDeriv, notNullValue());
assertThat(docCountDeriv.value(), closeTo(1d, 0.00001));
assertThat(docCountDeriv.normalizedValue(), closeTo(1d / 29d, 0.00001));
}
public void testUnmapped() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx_unmapped")
.addAggregation(
dateHistogram("histo")
.field("date")
.dateHistogramInterval(DateHistogramInterval.MONTH)
.minDocCount(0)
.subAggregation(derivative("deriv", "_count")))
.execute()
.actionGet();
assertSearchResponse(response);
Histogram deriv = response.getAggregations().get("histo");
assertThat(deriv, notNullValue());
assertThat(deriv.getName(), equalTo("histo"));
assertThat(deriv.getBuckets().size(), equalTo(0));
}
@Test
public void histogramOnNestedField() throws Exception {
Aggregations result =
query(
String.format(
"select count(*) from %s/nestedType group by histogram('field'='message.dayOfWeek','nested'='message','interval'='2' , 'alias' = 'someAlias' )",
TEST_INDEX));
InternalNested nested = result.get("message@NESTED");
Histogram histogram = nested.getAggregations().get("someAlias");
for (Histogram.Bucket bucket : histogram.getBuckets()) {
long count = ((ValueCount) bucket.getAggregations().get("COUNT(*)")).getValue();
if (bucket.getKey().equals("0") || bucket.getKey().equals("4")) {
Assert.assertEquals(2, count);
} else if (bucket.getKey().equals("2")) {
Assert.assertEquals(1, count);
} else {
Assert.assertTrue("only 0 2 4 keys are allowed got:" + bucket.getKey(), false);
}
}
}
@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));
}
public void testSingleValuedFieldWithSubAggregation() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
dateHistogram("histo")
.field("date")
.dateHistogramInterval(DateHistogramInterval.MONTH)
.minDocCount(0)
.subAggregation(sum("sum").field("value"))
.subAggregation(derivative("deriv", "sum")))
.execute()
.actionGet();
assertSearchResponse(response);
Histogram histo = response.getAggregations().get("histo");
assertThat(histo, notNullValue());
assertThat(histo.getName(), equalTo("histo"));
List<? extends Bucket> buckets = histo.getBuckets();
assertThat(buckets.size(), equalTo(3));
Object[] propertiesKeys = (Object[]) histo.getProperty("_key");
Object[] propertiesDocCounts = (Object[]) histo.getProperty("_count");
Object[] propertiesCounts = (Object[]) histo.getProperty("sum.value");
DateTime key = new DateTime(2012, 1, 1, 0, 0, DateTimeZone.UTC);
Histogram.Bucket bucket = buckets.get(0);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(1L));
assertThat(bucket.getAggregations().asList().isEmpty(), is(false));
Sum sum = bucket.getAggregations().get("sum");
assertThat(sum, notNullValue());
assertThat(sum.getValue(), equalTo(1.0));
SimpleValue deriv = bucket.getAggregations().get("deriv");
assertThat(deriv, nullValue());
assertThat((DateTime) propertiesKeys[0], equalTo(key));
assertThat((long) propertiesDocCounts[0], equalTo(1L));
assertThat((double) propertiesCounts[0], equalTo(1.0));
key = new DateTime(2012, 2, 1, 0, 0, DateTimeZone.UTC);
bucket = buckets.get(1);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(2L));
assertThat(bucket.getAggregations().asList().isEmpty(), is(false));
sum = bucket.getAggregations().get("sum");
assertThat(sum, notNullValue());
assertThat(sum.getValue(), equalTo(5.0));
deriv = bucket.getAggregations().get("deriv");
assertThat(deriv, notNullValue());
assertThat(deriv.value(), equalTo(4.0));
assertThat(
(double)
bucket.getProperty(
"histo", AggregationPath.parse("deriv.value").getPathElementsAsStringList()),
equalTo(4.0));
assertThat((DateTime) propertiesKeys[1], equalTo(key));
assertThat((long) propertiesDocCounts[1], equalTo(2L));
assertThat((double) propertiesCounts[1], equalTo(5.0));
key = new DateTime(2012, 3, 1, 0, 0, DateTimeZone.UTC);
bucket = buckets.get(2);
assertThat(bucket, notNullValue());
assertThat((DateTime) bucket.getKey(), equalTo(key));
assertThat(bucket.getDocCount(), equalTo(3L));
assertThat(bucket.getAggregations().asList().isEmpty(), is(false));
sum = bucket.getAggregations().get("sum");
assertThat(sum, notNullValue());
assertThat(sum.getValue(), equalTo(15.0));
deriv = bucket.getAggregations().get("deriv");
assertThat(deriv, notNullValue());
assertThat(deriv.value(), equalTo(10.0));
assertThat(
(double)
bucket.getProperty(
"histo", AggregationPath.parse("deriv.value").getPathElementsAsStringList()),
equalTo(10.0));
assertThat((DateTime) propertiesKeys[2], equalTo(key));
assertThat((long) propertiesDocCounts[2], equalTo(3L));
assertThat((double) propertiesCounts[2], equalTo(15.0));
}
/**
* also check for time zone shifts that are not one hour, e.g. "Asia/Kathmandu, 1 Jan 1986 - Time
* Zone Change (IST → NPT), at 00:00:00 clocks were turned forward 00:15 minutes
*/
public void testSingleValuedFieldNormalised_timeZone_AsiaKathmandu() throws Exception {
createIndex(IDX_DST_KATHMANDU);
DateTimeZone timezone = DateTimeZone.forID("Asia/Kathmandu");
List<IndexRequestBuilder> builders = new ArrayList<>();
addNTimes(1, IDX_DST_KATHMANDU, new DateTime("1985-12-31T22:30:00", timezone), builders);
// the shift happens during the next bucket, which includes the 45min that do not start on the
// full hour
addNTimes(2, IDX_DST_KATHMANDU, new DateTime("1985-12-31T23:30:00", timezone), builders);
addNTimes(3, IDX_DST_KATHMANDU, new DateTime("1986-01-01T01:30:00", timezone), builders);
addNTimes(4, IDX_DST_KATHMANDU, new DateTime("1986-01-01T02:30:00", timezone), builders);
indexRandom(true, builders);
ensureSearchable();
SearchResponse response =
client()
.prepareSearch(IDX_DST_KATHMANDU)
.addAggregation(
dateHistogram("histo")
.field("date")
.dateHistogramInterval(DateHistogramInterval.HOUR)
.timeZone(timezone)
.minDocCount(0)
.subAggregation(
derivative("deriv", "_count").unit(DateHistogramInterval.MINUTE)))
.execute()
.actionGet();
assertSearchResponse(response);
Histogram deriv = response.getAggregations().get("histo");
assertThat(deriv, notNullValue());
assertThat(deriv.getName(), equalTo("histo"));
List<? extends Bucket> buckets = deriv.getBuckets();
assertThat(buckets.size(), equalTo(4));
assertBucket(
buckets.get(0),
new DateTime("1985-12-31T22:00:00", timezone).toDateTime(DateTimeZone.UTC),
1L,
nullValue(),
null,
null);
assertBucket(
buckets.get(1),
new DateTime("1985-12-31T23:00:00", timezone).toDateTime(DateTimeZone.UTC),
2L,
notNullValue(),
1d,
1d / 60d);
// the following is normalized using a 105min bucket width
assertBucket(
buckets.get(2),
new DateTime("1986-01-01T01:00:00", timezone).toDateTime(DateTimeZone.UTC),
3L,
notNullValue(),
1d,
1d / 105d);
assertBucket(
buckets.get(3),
new DateTime("1986-01-01T02:00:00", timezone).toDateTime(DateTimeZone.UTC),
4L,
notNullValue(),
1d,
1d / 60d);
}
/** Do a derivative on a date histogram with time zone CET at DST end */
public void testSingleValuedFieldNormalised_timeZone_CET_DstEnd() throws Exception {
createIndex(IDX_DST_END);
DateTimeZone timezone = DateTimeZone.forID("CET");
List<IndexRequestBuilder> builders = new ArrayList<>();
addNTimes(1, IDX_DST_END, new DateTime("2012-10-27T01:00:00", timezone), builders);
addNTimes(
2,
IDX_DST_END,
new DateTime("2012-10-28T01:00:00", timezone),
builders); // day with dst shift -1h, 25h long
addNTimes(3, IDX_DST_END, new DateTime("2012-10-29T01:00:00", timezone), builders);
addNTimes(4, IDX_DST_END, new DateTime("2012-10-30T01:00:00", timezone), builders);
indexRandom(true, builders);
ensureSearchable();
SearchResponse response =
client()
.prepareSearch(IDX_DST_END)
.addAggregation(
dateHistogram("histo")
.field("date")
.dateHistogramInterval(DateHistogramInterval.DAY)
.timeZone(timezone)
.minDocCount(0)
.subAggregation(derivative("deriv", "_count").unit(DateHistogramInterval.HOUR)))
.execute()
.actionGet();
assertSearchResponse(response);
Histogram deriv = response.getAggregations().get("histo");
assertThat(deriv, notNullValue());
assertThat(deriv.getName(), equalTo("histo"));
List<? extends Bucket> buckets = deriv.getBuckets();
assertThat(buckets.size(), equalTo(4));
assertBucket(
buckets.get(0),
new DateTime("2012-10-27", timezone).toDateTime(DateTimeZone.UTC),
1L,
nullValue(),
null,
null);
assertBucket(
buckets.get(1),
new DateTime("2012-10-28", timezone).toDateTime(DateTimeZone.UTC),
2L,
notNullValue(),
1d,
1d / 24d);
// the following is normalized using a 25h bucket width
assertBucket(
buckets.get(2),
new DateTime("2012-10-29", timezone).toDateTime(DateTimeZone.UTC),
3L,
notNullValue(),
1d,
1d / 25d);
assertBucket(
buckets.get(3),
new DateTime("2012-10-30", timezone).toDateTime(DateTimeZone.UTC),
4L,
notNullValue(),
1d,
1d / 24d);
}
public void testEmptyBuckets() {
SearchResponse response =
client()
.prepareSearch("idx_with_gaps")
.addAggregation(
histogram("histo")
.field(FIELD_1_NAME)
.interval(1)
.subAggregation(
histogram("inner_histo")
.field(FIELD_1_NAME)
.interval(1)
.extendedBounds(new ExtendedBounds(1L, 4L))
.minDocCount(0)
.subAggregation(
derivative("derivative", "_count")
.gapPolicy(GapPolicy.INSERT_ZEROS))))
.execute()
.actionGet();
assertSearchResponse(response);
InternalHistogram<Bucket> histo = response.getAggregations().get("histo");
assertThat(histo, notNullValue());
assertThat(histo.getName(), equalTo("histo"));
List<? extends Bucket> buckets = histo.getBuckets();
assertThat(buckets.size(), equalTo(3));
Histogram.Bucket bucket = buckets.get(0);
assertThat(bucket, notNullValue());
assertThat(bucket.getKeyAsString(), equalTo("1"));
Histogram innerHisto = bucket.getAggregations().get("inner_histo");
assertThat(innerHisto, notNullValue());
List<? extends Histogram.Bucket> innerBuckets = innerHisto.getBuckets();
assertThat(innerBuckets, notNullValue());
assertThat(innerBuckets.size(), equalTo(4));
for (int i = 0; i < innerBuckets.size(); i++) {
Histogram.Bucket innerBucket = innerBuckets.get(i);
if (i == 0) {
assertThat(innerBucket.getAggregations().get("derivative"), nullValue());
} else {
assertThat(innerBucket.getAggregations().get("derivative"), notNullValue());
}
}
bucket = buckets.get(1);
assertThat(bucket, notNullValue());
assertThat(bucket.getKeyAsString(), equalTo("2"));
innerHisto = bucket.getAggregations().get("inner_histo");
assertThat(innerHisto, notNullValue());
innerBuckets = innerHisto.getBuckets();
assertThat(innerBuckets, notNullValue());
assertThat(innerBuckets.size(), equalTo(4));
for (int i = 0; i < innerBuckets.size(); i++) {
Histogram.Bucket innerBucket = innerBuckets.get(i);
if (i == 0) {
assertThat(innerBucket.getAggregations().get("derivative"), nullValue());
} else {
assertThat(innerBucket.getAggregations().get("derivative"), notNullValue());
}
}
bucket = buckets.get(2);
assertThat(bucket, notNullValue());
assertThat(bucket.getKeyAsString(), equalTo("3"));
innerHisto = bucket.getAggregations().get("inner_histo");
assertThat(innerHisto, notNullValue());
innerBuckets = innerHisto.getBuckets();
assertThat(innerBuckets, notNullValue());
assertThat(innerBuckets.size(), equalTo(4));
for (int i = 0; i < innerBuckets.size(); i++) {
Histogram.Bucket innerBucket = innerBuckets.get(i);
if (i == 0) {
assertThat(innerBucket.getAggregations().get("derivative"), nullValue());
} else {
assertThat(innerBucket.getAggregations().get("derivative"), notNullValue());
}
}
}