001/* 002 * (C) Copyright 2018 Nuxeo (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Gethin James 018 */ 019package org.nuxeo.elasticsearch.aggregate; 020 021import java.util.Collection; 022 023import org.elasticsearch.search.aggregations.bucket.MultiBucketsAggregation; 024import org.nuxeo.ecm.core.api.DocumentModel; 025import org.nuxeo.ecm.platform.query.api.AggregateDefinition; 026import org.nuxeo.ecm.platform.query.api.Bucket; 027 028/** 029 * An aggregate that returns multiple buckets. 030 * 031 * @since 10.3 032 */ 033public abstract class MultiBucketAggregate<B extends Bucket> extends AggregateEsBase<MultiBucketsAggregation, B> { 034 035 public MultiBucketAggregate(AggregateDefinition definition, DocumentModel searchDocument) { 036 super(definition, searchDocument); 037 } 038 039 @Override 040 public void parseAggregation(MultiBucketsAggregation aggregation) { 041 parseEsBuckets(aggregation.getBuckets()); 042 } 043 044 /** 045 * Extract the buckets from the Elasticsearch response 046 */ 047 public abstract void parseEsBuckets(Collection<? extends MultiBucketsAggregation.Bucket> buckets); 048 049}