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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;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.json.JsonXContent;
import org.elasticsearch.index.IndexService;
import org.elasticsearch.search.internal.SearchContext;
import org.elasticsearch.test.ESSingleNodeTestCase;
import java.io.IOException;
public class AggregationCollectorTests extends ESSingleNodeTestCase {
public void testNeedsScores() throws Exception {
IndexService index = createIndex("idx");
client().prepareIndex("idx", "type", "1").setSource("f", 5).execute().get();
client().admin().indices().prepareRefresh("idx").get();
// simple field aggregation, no scores needed
String fieldAgg = "{ \"my_terms\": {\"terms\": {\"field\": \"f\"}}}";
assertFalse(needsScores(index, fieldAgg));
// agg on a script => scores are needed
// TODO: can we use a mock script service here?
// String scriptAgg = "{ \"my_terms\": {\"terms\": {\"script\": \"doc['f'].value\"}}}";
// assertTrue(needsScores(index, scriptAgg));
//
// String subScriptAgg = "{ \"my_outer_terms\": { \"terms\": { \"field\": \"f\" }, \"aggs\": " + scriptAgg + "}}";
// assertTrue(needsScores(index, subScriptAgg));
// make sure the information is propagated to sub aggregations
String subFieldAgg = "{ \"my_outer_terms\": { \"terms\": { \"field\": \"f\" }, \"aggs\": " + fieldAgg + "}}";
assertFalse(needsScores(index, subFieldAgg));
// top_hits is a particular example of an aggregation that needs scores
String topHitsAgg = "{ \"my_hits\": {\"top_hits\": {}}}";
assertTrue(needsScores(index, topHitsAgg));
}
private boolean needsScores(IndexService index, String agg) throws IOException {
XContentParser aggParser = createParser(JsonXContent.jsonXContent, agg);
aggParser.nextToken();
SearchContext context = createSearchContext(index);
final AggregatorFactories factories = AggregatorFactories.parseAggregators(aggParser).build(context, null);
final Aggregator[] aggregators = factories.createTopLevelAggregators();
assertEquals(1, aggregators.length);
return aggregators[0].needsScores();
}
}
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