/* * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one * or more contributor license agreements. Licensed under the "Elastic License * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side * Public License v 1"; you may not use this file except in compliance with, at * your election, the "Elastic License 2.0", the "GNU Affero General Public * License v3.0 only", or the "Server Side Public License, v 1". */ package org.elasticsearch.search.aggregations.bucket; import org.elasticsearch.action.admin.indices.refresh.RefreshRequest; import org.elasticsearch.action.search.SearchType; import org.elasticsearch.index.query.TermQueryBuilder; import org.elasticsearch.search.aggregations.BucketOrder; import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder; import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregator; import org.elasticsearch.search.aggregations.bucket.terms.Terms; import org.elasticsearch.search.aggregations.bucket.terms.Terms.Bucket; import org.elasticsearch.search.aggregations.metrics.Max; import org.elasticsearch.test.ESIntegTestCase; import java.util.List; import static org.elasticsearch.search.aggregations.AggregationBuilders.max; import static org.elasticsearch.search.aggregations.AggregationBuilders.sampler; import static org.elasticsearch.search.aggregations.AggregationBuilders.terms; import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked; import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoFailures; import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoFailuresAndResponse; import static org.hamcrest.Matchers.equalTo; import static org.hamcrest.Matchers.greaterThan; import static org.hamcrest.Matchers.greaterThanOrEqualTo; import static org.hamcrest.Matchers.lessThanOrEqualTo; /** * Tests the Sampler aggregation */ @ESIntegTestCase.SuiteScopeTestCase public class SamplerIT extends ESIntegTestCase { public static final int NUM_SHARDS = 2; public String randomExecutionHint() { return randomBoolean() ? null : randomFrom(SamplerAggregator.ExecutionMode.values()).toString(); } @Override public void setupSuiteScopeCluster() throws Exception { assertAcked( prepareCreate("test").setSettings(indexSettings(NUM_SHARDS, 0)) .setMapping("author", "type=keyword", "name", "type=text", "genre", "type=keyword", "price", "type=float") ); createIndex("idx_unmapped"); // idx_unmapped_author is same as main index but missing author field assertAcked( prepareCreate("idx_unmapped_author").setSettings(indexSettings(NUM_SHARDS, 0)) .setMapping("name", "type=text", "genre", "type=keyword", "price", "type=float") ); ensureGreen(); String data[] = { // "id,cat,name,price,inStock,author_t,series_t,sequence_i,genre_s", "0553573403,book,A Game of Thrones,7.99,true,George R.R. Martin,A Song of Ice and Fire,1,fantasy", "0553579908,book,A Clash of Kings,7.99,true,George R.R. Martin,A Song of Ice and Fire,2,fantasy", "055357342X,book,A Storm of Swords,7.99,true,George R.R. Martin,A Song of Ice and Fire,3,fantasy", "0553293354,book,Foundation,17.99,true,Isaac Asimov,Foundation Novels,1,scifi", "0812521390,book,The Black Company,6.99,false,Glen Cook,The Chronicles of The Black Company,1,fantasy", "0812550706,book,Ender's Game,6.99,true,Orson Scott Card,Ender,1,scifi", "0441385532,book,Jhereg,7.95,false,Steven Brust,Vlad Taltos,1,fantasy", "0380014300,book,Nine Princes In Amber,6.99,true,Roger Zelazny,the Chronicles of Amber,1,fantasy", "0805080481,book,The Book of Three,5.99,true,Lloyd Alexander,The Chronicles of Prydain,1,fantasy", "080508049X,book,The Black Cauldron,5.99,true,Lloyd Alexander,The Chronicles of Prydain,2,fantasy" }; for (int i = 0; i < data.length; i++) { String[] parts = data[i].split(","); prepareIndex("test").setId("" + i) .setSource("author", parts[5], "name", parts[2], "genre", parts[8], "price", Float.parseFloat(parts[3])) .get(); prepareIndex("idx_unmapped_author").setId("" + i) .setSource("name", parts[2], "genre", parts[8], "price", Float.parseFloat(parts[3])) .get(); // frequent refresh makes it more likely that more segments are created, hence we may parallelize the search across slices indicesAdmin().refresh(new RefreshRequest()).get(); } } public void testIssue10719() throws Exception { // Tests that we can refer to nested elements under a sample in a path // statement boolean asc = randomBoolean(); assertNoFailuresAndResponse( prepareSearch("test").setSearchType(SearchType.QUERY_THEN_FETCH) .addAggregation( terms("genres").field("genre") .order(BucketOrder.aggregation("sample>max_price.value", asc)) .subAggregation(sampler("sample").shardSize(100).subAggregation(max("max_price").field("price"))) ), response -> { Terms genres = response.getAggregations().get("genres"); List genreBuckets = genres.getBuckets(); // For this test to be useful we need >1 genre bucket to compare assertThat(genreBuckets.size(), greaterThan(1)); double lastMaxPrice = asc ? Double.MIN_VALUE : Double.MAX_VALUE; for (Terms.Bucket genreBucket : genres.getBuckets()) { SingleBucketAggregation sample = genreBucket.getAggregations().get("sample"); Max maxPriceInGenre = sample.getAggregations().get("max_price"); double price = maxPriceInGenre.value(); if (asc) { assertThat(price, greaterThanOrEqualTo(lastMaxPrice)); } else { assertThat(price, lessThanOrEqualTo(lastMaxPrice)); } lastMaxPrice = price; } } ); } public void testSimpleSampler() throws Exception { SamplerAggregationBuilder sampleAgg = sampler("sample").shardSize(100); sampleAgg.subAggregation(terms("authors").field("author")); assertNoFailuresAndResponse( prepareSearch("test").setSearchType(SearchType.QUERY_THEN_FETCH) .setQuery(new TermQueryBuilder("genre", "fantasy")) .setFrom(0) .setSize(60) .addAggregation(sampleAgg), response -> { SingleBucketAggregation sample = response.getAggregations().get("sample"); Terms authors = sample.getAggregations().get("authors"); List testBuckets = authors.getBuckets(); long maxBooksPerAuthor = 0; for (Terms.Bucket testBucket : testBuckets) { maxBooksPerAuthor = Math.max(testBucket.getDocCount(), maxBooksPerAuthor); } assertThat(maxBooksPerAuthor, equalTo(3L)); } ); } public void testUnmappedChildAggNoDiversity() throws Exception { SamplerAggregationBuilder sampleAgg = sampler("sample").shardSize(100); sampleAgg.subAggregation(terms("authors").field("author")); assertNoFailuresAndResponse( prepareSearch("idx_unmapped").setSearchType(SearchType.QUERY_THEN_FETCH) .setQuery(new TermQueryBuilder("genre", "fantasy")) .setFrom(0) .setSize(60) .addAggregation(sampleAgg), response -> { SingleBucketAggregation sample = response.getAggregations().get("sample"); assertThat(sample.getDocCount(), equalTo(0L)); Terms authors = sample.getAggregations().get("authors"); assertThat(authors.getBuckets().size(), equalTo(0)); } ); } public void testPartiallyUnmappedChildAggNoDiversity() throws Exception { SamplerAggregationBuilder sampleAgg = sampler("sample").shardSize(100); sampleAgg.subAggregation(terms("authors").field("author")); assertNoFailuresAndResponse( prepareSearch("idx_unmapped", "test").setSearchType(SearchType.QUERY_THEN_FETCH) .setQuery(new TermQueryBuilder("genre", "fantasy")) .setFrom(0) .setSize(60) .setExplain(true) .addAggregation(sampleAgg), response -> { SingleBucketAggregation sample = response.getAggregations().get("sample"); assertThat(sample.getDocCount(), greaterThan(0L)); Terms authors = sample.getAggregations().get("authors"); assertThat(authors.getBuckets().size(), greaterThan(0)); } ); } public void testRidiculousShardSizeSampler() throws Exception { SamplerAggregationBuilder sampleAgg = sampler("sample").shardSize(Integer.MAX_VALUE); sampleAgg.subAggregation(terms("authors").field("author")); assertNoFailures( prepareSearch("test").setSearchType(SearchType.QUERY_THEN_FETCH) .setQuery(new TermQueryBuilder("genre", "fantasy")) .setFrom(0) .setSize(60) .addAggregation(sampleAgg) ); } }