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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.aggregations;
import org.apache.lucene.search.Scorable;
import org.elasticsearch.common.lucene.ScorerAware;
import java.io.IOException;
/**
* A {@link LeafBucketCollector} that delegates all calls to the sub leaf
* aggregator and sets the scorer on its source of values if it implements
* {@link ScorerAware}.
*/
public class LeafBucketCollectorBase extends LeafBucketCollector {
private final LeafBucketCollector sub;
private final ScorerAware values;
/**
* @param sub The leaf collector for sub aggregations.
* @param values The values. {@link ScorerAware#setScorer} will be called automatically on them if they implement {@link ScorerAware}.
*/
public LeafBucketCollectorBase(LeafBucketCollector sub, Object values) {
this.sub = sub;
if (values instanceof ScorerAware) {
this.values = (ScorerAware) values;
} else {
this.values = null;
}
}
@Override
public void setScorer(Scorable s) throws IOException {
sub.setScorer(s);
if (values != null) {
values.setScorer(s);
}
}
@Override
public void collect(int doc, long bucket) throws IOException {
sub.collect(doc, bucket);
}
}