@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()])));
}
@Test
public void testMetric_topLevel() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx")
.addAggregation(
terms("terms")
.field("tag")
.subAggregation(sum("sum").field(SINGLE_VALUED_FIELD_NAME)))
.addAggregation(maxBucket("max_bucket").setBucketsPaths("terms>sum"))
.execute()
.actionGet();
assertSearchResponse(response);
Terms terms = response.getAggregations().get("terms");
assertThat(terms, notNullValue());
assertThat(terms.getName(), equalTo("terms"));
List<Terms.Bucket> buckets = terms.getBuckets();
assertThat(buckets.size(), equalTo(interval));
List<String> maxKeys = new ArrayList<>();
double maxValue = Double.NEGATIVE_INFINITY;
for (int i = 0; i < interval; ++i) {
Terms.Bucket bucket = buckets.get(i);
assertThat(bucket, notNullValue());
assertThat((String) bucket.getKey(), equalTo("tag" + (i % interval)));
assertThat(bucket.getDocCount(), greaterThan(0l));
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 = response.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()])));
}
@Test
public void singleValueAggDerivativeWithGaps_random() throws Exception {
GapPolicy gapPolicy = randomFrom(GapPolicy.values());
SearchResponse searchResponse =
client()
.prepareSearch("empty_bucket_idx_rnd")
.setQuery(matchAllQuery())
.addAggregation(
histogram("histo")
.field(SINGLE_VALUED_FIELD_NAME)
.interval(1)
.extendedBounds(0l, (long) numBuckets_empty_rnd - 1)
.subAggregation(sum("sum").field(SINGLE_VALUED_FIELD_NAME))
.subAggregation(
derivative("deriv").setBucketsPaths("sum").gapPolicy(gapPolicy)))
.execute()
.actionGet();
assertThat(searchResponse.getHits().getTotalHits(), equalTo(numDocsEmptyIdx_rnd));
InternalHistogram<Bucket> deriv = searchResponse.getAggregations().get("histo");
assertThat(deriv, Matchers.notNullValue());
assertThat(deriv.getName(), equalTo("histo"));
List<Bucket> buckets = deriv.getBuckets();
assertThat(buckets.size(), equalTo(numBuckets_empty_rnd));
double lastSumValue = Double.NaN;
for (int i = 0; i < valueCounts_empty_rnd.length; i++) {
Histogram.Bucket bucket = buckets.get(i);
checkBucketKeyAndDocCount("Bucket " + i, bucket, i, valueCounts_empty_rnd[i]);
Sum sum = bucket.getAggregations().get("sum");
double thisSumValue = sum.value();
if (bucket.getDocCount() == 0) {
thisSumValue = gapPolicy == GapPolicy.INSERT_ZEROS ? 0 : Double.NaN;
}
SimpleValue sumDeriv = bucket.getAggregations().get("deriv");
if (i == 0) {
assertThat(sumDeriv, nullValue());
} else {
double expectedDerivative = thisSumValue - lastSumValue;
if (Double.isNaN(expectedDerivative)) {
assertThat(sumDeriv.value(), equalTo(expectedDerivative));
} else {
assertThat(sumDeriv.value(), closeTo(expectedDerivative, 0.00001));
}
}
lastSumValue = thisSumValue;
}
}
@Test
public void testMetric_asSubAggWithInsertZeros() 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(sum("sum").field(SINGLE_VALUED_FIELD_NAME)))
.subAggregation(
maxBucket("max_bucket")
.setBucketsPaths("histo>sum")
.gapPolicy(GapPolicy.INSERT_ZEROS)))
.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));
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 = 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()])));
}
}