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-/*
- * Licensed to Elasticsearch under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch licenses this file to you under
- * the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.elasticsearch.search.aggregations.bucket;
-
-import org.apache.lucene.search.join.ScoreMode;
-import org.elasticsearch.action.index.IndexRequestBuilder;
-import org.elasticsearch.action.search.SearchResponse;
-import org.elasticsearch.action.update.UpdateResponse;
-import org.elasticsearch.client.Requests;
-import org.elasticsearch.cluster.metadata.IndexMetaData;
-import org.elasticsearch.common.settings.Settings;
-import org.elasticsearch.common.xcontent.XContentType;
-import org.elasticsearch.search.SearchHit;
-import org.elasticsearch.search.aggregations.AggregationBuilders;
-import org.elasticsearch.search.aggregations.InternalAggregation;
-import org.elasticsearch.search.aggregations.bucket.children.Children;
-import org.elasticsearch.search.aggregations.bucket.terms.Terms;
-import org.elasticsearch.search.aggregations.metrics.sum.Sum;
-import org.elasticsearch.search.aggregations.metrics.tophits.TopHits;
-import org.elasticsearch.search.sort.SortOrder;
-import org.elasticsearch.test.ESIntegTestCase;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import static org.elasticsearch.index.query.QueryBuilders.hasChildQuery;
-import static org.elasticsearch.index.query.QueryBuilders.matchQuery;
-import static org.elasticsearch.index.query.QueryBuilders.termQuery;
-import static org.elasticsearch.search.aggregations.AggregationBuilders.children;
-import static org.elasticsearch.search.aggregations.AggregationBuilders.sum;
-import static org.elasticsearch.search.aggregations.AggregationBuilders.terms;
-import static org.elasticsearch.search.aggregations.AggregationBuilders.topHits;
-import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
-import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertHitCount;
-import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoFailures;
-import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertSearchResponse;
-import static org.hamcrest.Matchers.equalTo;
-import static org.hamcrest.Matchers.greaterThan;
-import static org.hamcrest.Matchers.is;
-import static org.hamcrest.Matchers.sameInstance;
-
-@ESIntegTestCase.SuiteScopeTestCase
-public class ChildrenIT extends ESIntegTestCase {
-
- private static final Map<String, Control> categoryToControl = new HashMap<>();
-
- @Override
- public void setupSuiteScopeCluster() throws Exception {
- assertAcked(
- prepareCreate("test")
- .setSettings("index.mapping.single_type", false)
- .addMapping("article", "category", "type=keyword")
- .addMapping("comment", "_parent", "type=article", "commenter", "type=keyword")
- );
-
- List<IndexRequestBuilder> requests = new ArrayList<>();
- String[] uniqueCategories = new String[randomIntBetween(1, 25)];
- for (int i = 0; i < uniqueCategories.length; i++) {
- uniqueCategories[i] = Integer.toString(i);
- }
- int catIndex = 0;
-
- int numParentDocs = randomIntBetween(uniqueCategories.length, uniqueCategories.length * 5);
- for (int i = 0; i < numParentDocs; i++) {
- String id = Integer.toString(i);
-
- // TODO: this array is always of length 1, and testChildrenAggs fails if this is changed
- String[] categories = new String[randomIntBetween(1,1)];
- for (int j = 0; j < categories.length; j++) {
- String category = categories[j] = uniqueCategories[catIndex++ % uniqueCategories.length];
- Control control = categoryToControl.get(category);
- if (control == null) {
- categoryToControl.put(category, control = new Control(category));
- }
- control.articleIds.add(id);
- }
-
- requests.add(client().prepareIndex("test", "article", id).setCreate(true).setSource("category", categories, "randomized", true));
- }
-
- String[] commenters = new String[randomIntBetween(5, 50)];
- for (int i = 0; i < commenters.length; i++) {
- commenters[i] = Integer.toString(i);
- }
-
- int id = 0;
- for (Control control : categoryToControl.values()) {
- for (String articleId : control.articleIds) {
- int numChildDocsPerParent = randomIntBetween(0, 5);
- for (int i = 0; i < numChildDocsPerParent; i++) {
- String commenter = commenters[id % commenters.length];
- String idValue = Integer.toString(id++);
- control.commentIds.add(idValue);
- Set<String> ids = control.commenterToCommentId.get(commenter);
- if (ids == null) {
- control.commenterToCommentId.put(commenter, ids = new HashSet<>());
- }
- ids.add(idValue);
- requests.add(client().prepareIndex("test", "comment", idValue).setCreate(true).setParent(articleId).setSource("commenter", commenter));
- }
- }
- }
-
- requests.add(client().prepareIndex("test", "article", "a").setSource("category", new String[]{"a"}, "randomized", false));
- requests.add(client().prepareIndex("test", "article", "b").setSource("category", new String[]{"a", "b"}, "randomized", false));
- requests.add(client().prepareIndex("test", "article", "c").setSource("category", new String[]{"a", "b", "c"}, "randomized", false));
- requests.add(client().prepareIndex("test", "article", "d").setSource("category", new String[]{"c"}, "randomized", false));
- requests.add(client().prepareIndex("test", "comment", "a").setParent("a").setSource("{}", XContentType.JSON));
- requests.add(client().prepareIndex("test", "comment", "c").setParent("c").setSource("{}", XContentType.JSON));
-
- indexRandom(true, requests);
- ensureSearchable("test");
- }
-
- public void testChildrenAggs() throws Exception {
- SearchResponse searchResponse = client().prepareSearch("test")
- .setQuery(matchQuery("randomized", true))
- .addAggregation(
- terms("category").field("category").size(10000).subAggregation(children("to_comment", "comment")
- .subAggregation(
- terms("commenters").field("commenter").size(10000).subAggregation(
- topHits("top_comments")
- ))
- )
- ).get();
- assertSearchResponse(searchResponse);
-
- Terms categoryTerms = searchResponse.getAggregations().get("category");
- assertThat(categoryTerms.getBuckets().size(), equalTo(categoryToControl.size()));
- for (Map.Entry<String, Control> entry1 : categoryToControl.entrySet()) {
- Terms.Bucket categoryBucket = categoryTerms.getBucketByKey(entry1.getKey());
- assertThat(categoryBucket.getKeyAsString(), equalTo(entry1.getKey()));
- assertThat(categoryBucket.getDocCount(), equalTo((long) entry1.getValue().articleIds.size()));
-
- Children childrenBucket = categoryBucket.getAggregations().get("to_comment");
- assertThat(childrenBucket.getName(), equalTo("to_comment"));
- assertThat(childrenBucket.getDocCount(), equalTo((long) entry1.getValue().commentIds.size()));
- assertThat((long) ((InternalAggregation)childrenBucket).getProperty("_count"), equalTo((long) entry1.getValue().commentIds.size()));
-
- Terms commentersTerms = childrenBucket.getAggregations().get("commenters");
- assertThat((Terms) ((InternalAggregation)childrenBucket).getProperty("commenters"), sameInstance(commentersTerms));
- assertThat(commentersTerms.getBuckets().size(), equalTo(entry1.getValue().commenterToCommentId.size()));
- for (Map.Entry<String, Set<String>> entry2 : entry1.getValue().commenterToCommentId.entrySet()) {
- Terms.Bucket commentBucket = commentersTerms.getBucketByKey(entry2.getKey());
- assertThat(commentBucket.getKeyAsString(), equalTo(entry2.getKey()));
- assertThat(commentBucket.getDocCount(), equalTo((long) entry2.getValue().size()));
-
- TopHits topHits = commentBucket.getAggregations().get("top_comments");
- for (SearchHit searchHit : topHits.getHits().getHits()) {
- assertThat(entry2.getValue().contains(searchHit.getId()), is(true));
- }
- }
- }
- }
-
- public void testParentWithMultipleBuckets() throws Exception {
- SearchResponse searchResponse = client().prepareSearch("test")
- .setQuery(matchQuery("randomized", false))
- .addAggregation(
- terms("category").field("category").size(10000).subAggregation(
- children("to_comment", "comment").subAggregation(topHits("top_comments").sort("_uid", SortOrder.ASC))
- )
- ).get();
- assertSearchResponse(searchResponse);
-
- Terms categoryTerms = searchResponse.getAggregations().get("category");
- assertThat(categoryTerms.getBuckets().size(), equalTo(3));
-
- for (Terms.Bucket bucket : categoryTerms.getBuckets()) {
- logger.info("bucket={}", bucket.getKey());
- Children childrenBucket = bucket.getAggregations().get("to_comment");
- TopHits topHits = childrenBucket.getAggregations().get("top_comments");
- logger.info("total_hits={}", topHits.getHits().getTotalHits());
- for (SearchHit searchHit : topHits.getHits()) {
- logger.info("hit= {} {} {}", searchHit.getSortValues()[0], searchHit.getType(), searchHit.getId());
- }
- }
-
- Terms.Bucket categoryBucket = categoryTerms.getBucketByKey("a");
- assertThat(categoryBucket.getKeyAsString(), equalTo("a"));
- assertThat(categoryBucket.getDocCount(), equalTo(3L));
-
- Children childrenBucket = categoryBucket.getAggregations().get("to_comment");
- assertThat(childrenBucket.getName(), equalTo("to_comment"));
- assertThat(childrenBucket.getDocCount(), equalTo(2L));
- TopHits topHits = childrenBucket.getAggregations().get("top_comments");
- assertThat(topHits.getHits().getTotalHits(), equalTo(2L));
- assertThat(topHits.getHits().getAt(0).getId(), equalTo("a"));
- assertThat(topHits.getHits().getAt(0).getType(), equalTo("comment"));
- assertThat(topHits.getHits().getAt(1).getId(), equalTo("c"));
- assertThat(topHits.getHits().getAt(1).getType(), equalTo("comment"));
-
- categoryBucket = categoryTerms.getBucketByKey("b");
- assertThat(categoryBucket.getKeyAsString(), equalTo("b"));
- assertThat(categoryBucket.getDocCount(), equalTo(2L));
-
- childrenBucket = categoryBucket.getAggregations().get("to_comment");
- assertThat(childrenBucket.getName(), equalTo("to_comment"));
- assertThat(childrenBucket.getDocCount(), equalTo(1L));
- topHits = childrenBucket.getAggregations().get("top_comments");
- assertThat(topHits.getHits().getTotalHits(), equalTo(1L));
- assertThat(topHits.getHits().getAt(0).getId(), equalTo("c"));
- assertThat(topHits.getHits().getAt(0).getType(), equalTo("comment"));
-
- categoryBucket = categoryTerms.getBucketByKey("c");
- assertThat(categoryBucket.getKeyAsString(), equalTo("c"));
- assertThat(categoryBucket.getDocCount(), equalTo(2L));
-
- childrenBucket = categoryBucket.getAggregations().get("to_comment");
- assertThat(childrenBucket.getName(), equalTo("to_comment"));
- assertThat(childrenBucket.getDocCount(), equalTo(1L));
- topHits = childrenBucket.getAggregations().get("top_comments");
- assertThat(topHits.getHits().getTotalHits(), equalTo(1L));
- assertThat(topHits.getHits().getAt(0).getId(), equalTo("c"));
- assertThat(topHits.getHits().getAt(0).getType(), equalTo("comment"));
- }
-
- public void testWithDeletes() throws Exception {
- String indexName = "xyz";
- assertAcked(
- prepareCreate(indexName)
- .setSettings("index.mapping.single_type", false)
- .addMapping("parent")
- .addMapping("child", "_parent", "type=parent", "count", "type=long")
- );
-
- List<IndexRequestBuilder> requests = new ArrayList<>();
- requests.add(client().prepareIndex(indexName, "parent", "1").setSource("{}", XContentType.JSON));
- requests.add(client().prepareIndex(indexName, "child", "0").setParent("1").setSource("count", 1));
- requests.add(client().prepareIndex(indexName, "child", "1").setParent("1").setSource("count", 1));
- requests.add(client().prepareIndex(indexName, "child", "2").setParent("1").setSource("count", 1));
- requests.add(client().prepareIndex(indexName, "child", "3").setParent("1").setSource("count", 1));
- indexRandom(true, requests);
-
- for (int i = 0; i < 10; i++) {
- SearchResponse searchResponse = client().prepareSearch(indexName)
- .addAggregation(children("children", "child").subAggregation(sum("counts").field("count")))
- .get();
-
- assertNoFailures(searchResponse);
- Children children = searchResponse.getAggregations().get("children");
- assertThat(children.getDocCount(), equalTo(4L));
-
- Sum count = children.getAggregations().get("counts");
- assertThat(count.getValue(), equalTo(4.));
-
- String idToUpdate = Integer.toString(randomInt(3));
- /*
- * The whole point of this test is to test these things with deleted
- * docs in the index so we turn off detect_noop to make sure that
- * the updates cause that.
- */
- UpdateResponse updateResponse = client().prepareUpdate(indexName, "child", idToUpdate)
- .setParent("1")
- .setDoc(Requests.INDEX_CONTENT_TYPE, "count", 1)
- .setDetectNoop(false)
- .get();
- assertThat(updateResponse.getVersion(), greaterThan(1L));
- refresh();
- }
- }
-
- public void testNonExistingChildType() throws Exception {
- SearchResponse searchResponse = client().prepareSearch("test")
- .addAggregation(
-children("non-existing", "xyz")
- ).get();
- assertSearchResponse(searchResponse);
-
- Children children = searchResponse.getAggregations().get("non-existing");
- assertThat(children.getName(), equalTo("non-existing"));
- assertThat(children.getDocCount(), equalTo(0L));
- }
-
- public void testPostCollection() throws Exception {
- String indexName = "prodcatalog";
- String masterType = "masterprod";
- String childType = "variantsku";
- assertAcked(
- prepareCreate(indexName)
- .setSettings("index.mapping.single_type", false)
- .addMapping(masterType, "brand", "type=text", "name", "type=keyword", "material", "type=text")
- .addMapping(childType, "_parent", "type=masterprod", "color", "type=keyword", "size", "type=keyword")
- );
-
- List<IndexRequestBuilder> requests = new ArrayList<>();
- requests.add(client().prepareIndex(indexName, masterType, "1").setSource("brand", "Levis", "name", "Style 501", "material", "Denim"));
- requests.add(client().prepareIndex(indexName, childType, "0").setParent("1").setSource("color", "blue", "size", "32"));
- requests.add(client().prepareIndex(indexName, childType, "1").setParent("1").setSource("color", "blue", "size", "34"));
- requests.add(client().prepareIndex(indexName, childType, "2").setParent("1").setSource("color", "blue", "size", "36"));
- requests.add(client().prepareIndex(indexName, childType, "3").setParent("1").setSource("color", "black", "size", "38"));
- requests.add(client().prepareIndex(indexName, childType, "4").setParent("1").setSource("color", "black", "size", "40"));
- requests.add(client().prepareIndex(indexName, childType, "5").setParent("1").setSource("color", "gray", "size", "36"));
-
- requests.add(client().prepareIndex(indexName, masterType, "2").setSource("brand", "Wrangler", "name", "Regular Cut", "material", "Leather"));
- requests.add(client().prepareIndex(indexName, childType, "6").setParent("2").setSource("color", "blue", "size", "32"));
- requests.add(client().prepareIndex(indexName, childType, "7").setParent("2").setSource("color", "blue", "size", "34"));
- requests.add(client().prepareIndex(indexName, childType, "8").setParent("2").setSource("color", "black", "size", "36"));
- requests.add(client().prepareIndex(indexName, childType, "9").setParent("2").setSource("color", "black", "size", "38"));
- requests.add(client().prepareIndex(indexName, childType, "10").setParent("2").setSource("color", "black", "size", "40"));
- requests.add(client().prepareIndex(indexName, childType, "11").setParent("2").setSource("color", "orange", "size", "36"));
- requests.add(client().prepareIndex(indexName, childType, "12").setParent("2").setSource("color", "green", "size", "44"));
- indexRandom(true, requests);
-
- SearchResponse response = client().prepareSearch(indexName).setTypes(masterType)
- .setQuery(hasChildQuery(childType, termQuery("color", "orange"), ScoreMode.None))
-.addAggregation(children("my-refinements", childType)
- .subAggregation(terms("my-colors").field("color"))
- .subAggregation(terms("my-sizes").field("size"))
- ).get();
- assertNoFailures(response);
- assertHitCount(response, 1);
-
- Children childrenAgg = response.getAggregations().get("my-refinements");
- assertThat(childrenAgg.getDocCount(), equalTo(7L));
-
- Terms termsAgg = childrenAgg.getAggregations().get("my-colors");
- assertThat(termsAgg.getBuckets().size(), equalTo(4));
- assertThat(termsAgg.getBucketByKey("black").getDocCount(), equalTo(3L));
- assertThat(termsAgg.getBucketByKey("blue").getDocCount(), equalTo(2L));
- assertThat(termsAgg.getBucketByKey("green").getDocCount(), equalTo(1L));
- assertThat(termsAgg.getBucketByKey("orange").getDocCount(), equalTo(1L));
-
- termsAgg = childrenAgg.getAggregations().get("my-sizes");
- assertThat(termsAgg.getBuckets().size(), equalTo(6));
- assertThat(termsAgg.getBucketByKey("36").getDocCount(), equalTo(2L));
- assertThat(termsAgg.getBucketByKey("32").getDocCount(), equalTo(1L));
- assertThat(termsAgg.getBucketByKey("34").getDocCount(), equalTo(1L));
- assertThat(termsAgg.getBucketByKey("38").getDocCount(), equalTo(1L));
- assertThat(termsAgg.getBucketByKey("40").getDocCount(), equalTo(1L));
- assertThat(termsAgg.getBucketByKey("44").getDocCount(), equalTo(1L));
- }
-
- public void testHierarchicalChildrenAggs() {
- String indexName = "geo";
- String grandParentType = "continent";
- String parentType = "country";
- String childType = "city";
- assertAcked(
- prepareCreate(indexName)
- .setSettings(Settings.builder()
- .put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
- .put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0)
- )
- .setSettings("index.mapping.single_type", false)
- .addMapping(grandParentType, "name", "type=keyword")
- .addMapping(parentType, "_parent", "type=" + grandParentType)
- .addMapping(childType, "_parent", "type=" + parentType)
- );
-
- client().prepareIndex(indexName, grandParentType, "1").setSource("name", "europe").get();
- client().prepareIndex(indexName, parentType, "2").setParent("1").setSource("name", "belgium").get();
- client().prepareIndex(indexName, childType, "3").setParent("2").setRouting("1").setSource("name", "brussels").get();
- refresh();
-
- SearchResponse response = client().prepareSearch(indexName)
- .setQuery(matchQuery("name", "europe"))
- .addAggregation(
- children(parentType, parentType).subAggregation(children(childType, childType).subAggregation(
- terms("name").field("name")
- )
- )
- )
- .get();
- assertNoFailures(response);
- assertHitCount(response, 1);
-
- Children children = response.getAggregations().get(parentType);
- assertThat(children.getName(), equalTo(parentType));
- assertThat(children.getDocCount(), equalTo(1L));
- children = children.getAggregations().get(childType);
- assertThat(children.getName(), equalTo(childType));
- assertThat(children.getDocCount(), equalTo(1L));
- Terms terms = children.getAggregations().get("name");
- assertThat(terms.getBuckets().size(), equalTo(1));
- assertThat(terms.getBuckets().get(0).getKey().toString(), equalTo("brussels"));
- assertThat(terms.getBuckets().get(0).getDocCount(), equalTo(1L));
- }
-
- public void testPostCollectAllLeafReaders() throws Exception {
- // The 'towns' and 'parent_names' aggs operate on parent docs and if child docs are in different segments we need
- // to ensure those segments which child docs are also evaluated to in the post collect phase.
-
- // Before we only evaluated segments that yielded matches in 'towns' and 'parent_names' aggs, which caused
- // us to miss to evaluate child docs in segments we didn't have parent matches for.
-
- assertAcked(
- prepareCreate("index")
- .setSettings("index.mapping.single_type", false)
- .addMapping("parentType", "name", "type=keyword", "town", "type=keyword")
- .addMapping("childType", "_parent", "type=parentType", "name", "type=keyword", "age", "type=integer")
- );
- List<IndexRequestBuilder> requests = new ArrayList<>();
- requests.add(client().prepareIndex("index", "parentType", "1").setSource("name", "Bob", "town", "Memphis"));
- requests.add(client().prepareIndex("index", "parentType", "2").setSource("name", "Alice", "town", "Chicago"));
- requests.add(client().prepareIndex("index", "parentType", "3").setSource("name", "Bill", "town", "Chicago"));
- requests.add(client().prepareIndex("index", "childType", "1").setSource("name", "Jill", "age", 5).setParent("1"));
- requests.add(client().prepareIndex("index", "childType", "2").setSource("name", "Joey", "age", 3).setParent("1"));
- requests.add(client().prepareIndex("index", "childType", "3").setSource("name", "John", "age", 2).setParent("2"));
- requests.add(client().prepareIndex("index", "childType", "4").setSource("name", "Betty", "age", 6).setParent("3"));
- requests.add(client().prepareIndex("index", "childType", "5").setSource("name", "Dan", "age", 1).setParent("3"));
- indexRandom(true, requests);
-
- SearchResponse response = client().prepareSearch("index")
- .setSize(0)
- .addAggregation(AggregationBuilders.terms("towns").field("town")
- .subAggregation(AggregationBuilders.terms("parent_names").field("name")
-.subAggregation(AggregationBuilders.children("child_docs", "childType"))
- )
- )
- .get();
-
- Terms towns = response.getAggregations().get("towns");
- assertThat(towns.getBuckets().size(), equalTo(2));
- assertThat(towns.getBuckets().get(0).getKeyAsString(), equalTo("Chicago"));
- assertThat(towns.getBuckets().get(0).getDocCount(), equalTo(2L));
-
- Terms parents = towns.getBuckets().get(0).getAggregations().get("parent_names");
- assertThat(parents.getBuckets().size(), equalTo(2));
- assertThat(parents.getBuckets().get(0).getKeyAsString(), equalTo("Alice"));
- assertThat(parents.getBuckets().get(0).getDocCount(), equalTo(1L));
- Children children = parents.getBuckets().get(0).getAggregations().get("child_docs");
- assertThat(children.getDocCount(), equalTo(1L));
-
- assertThat(parents.getBuckets().get(1).getKeyAsString(), equalTo("Bill"));
- assertThat(parents.getBuckets().get(1).getDocCount(), equalTo(1L));
- children = parents.getBuckets().get(1).getAggregations().get("child_docs");
- assertThat(children.getDocCount(), equalTo(2L));
-
- assertThat(towns.getBuckets().get(1).getKeyAsString(), equalTo("Memphis"));
- assertThat(towns.getBuckets().get(1).getDocCount(), equalTo(1L));
- parents = towns.getBuckets().get(1).getAggregations().get("parent_names");
- assertThat(parents.getBuckets().size(), equalTo(1));
- assertThat(parents.getBuckets().get(0).getKeyAsString(), equalTo("Bob"));
- assertThat(parents.getBuckets().get(0).getDocCount(), equalTo(1L));
- children = parents.getBuckets().get(0).getAggregations().get("child_docs");
- assertThat(children.getDocCount(), equalTo(2L));
- }
-
- private static final class Control {
-
- final String category;
- final Set<String> articleIds = new HashSet<>();
- final Set<String> commentIds = new HashSet<>();
- final Map<String, Set<String>> commenterToCommentId = new HashMap<>();
-
- private Control(String category) {
- this.category = category;
- }
- }
-
-}