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Elasticsearch subproject :server
/*
* 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 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 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.search.fetch.subphase.highlight;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.highlight.QueryScorer;
import org.apache.lucene.search.highlight.WeightedSpanTerm;
import org.apache.lucene.search.highlight.WeightedSpanTermExtractor;
import org.elasticsearch.common.lucene.search.function.FunctionScoreQuery;
import org.elasticsearch.index.search.ESToParentBlockJoinQuery;
import java.io.IOException;
import java.util.Map;
public final class CustomQueryScorer extends QueryScorer {
public CustomQueryScorer(Query query, IndexReader reader, String field, String defaultField) {
super(query, reader, field, defaultField);
}
public CustomQueryScorer(Query query, IndexReader reader, String field) {
super(query, reader, field);
}
public CustomQueryScorer(Query query, String field, String defaultField) {
super(query, field, defaultField);
}
public CustomQueryScorer(Query query, String field) {
super(query, field);
}
public CustomQueryScorer(Query query) {
super(query);
}
public CustomQueryScorer(WeightedSpanTerm[] weightedTerms) {
super(weightedTerms);
}
@Override
protected WeightedSpanTermExtractor newTermExtractor(String defaultField) {
return defaultField == null ? new CustomWeightedSpanTermExtractor() : new CustomWeightedSpanTermExtractor(defaultField);
}
private static class CustomWeightedSpanTermExtractor extends WeightedSpanTermExtractor {
CustomWeightedSpanTermExtractor() {
super();
}
CustomWeightedSpanTermExtractor(String defaultField) {
super(defaultField);
}
@Override
protected void extractUnknownQuery(Query query, Map terms) throws IOException {
extractWeightedTerms(terms, query, 1F);
}
protected void extract(Query query, float boost, Map terms) throws IOException {
if (isChildOrParentQuery(query.getClass())) {
// skip has_child or has_parent queries, see: https://github.com/elastic/elasticsearch/issues/14999
return;
} else if (query instanceof FunctionScoreQuery) {
super.extract(((FunctionScoreQuery) query).getSubQuery(), boost, terms);
} else if (query instanceof ESToParentBlockJoinQuery) {
super.extract(((ESToParentBlockJoinQuery) query).getChildQuery(), boost, terms);
} else {
super.extract(query, boost, terms);
}
}
/**
* Workaround to detect parent/child query
*/
private static final String PARENT_CHILD_QUERY_NAME = "LateParsingQuery";
private static boolean isChildOrParentQuery(Class clazz) {
return clazz.getName().endsWith(PARENT_CHILD_QUERY_NAME);
}
}
}