46 lines
1.5 KiB
Java
46 lines
1.5 KiB
Java
package it.cavallium.dbengine.database.utils;
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import java.util.Collection;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.concurrent.locks.ReentrantLock;
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import org.apache.lucene.search.CollectorManager;
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import org.apache.lucene.search.ScoreMode;
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public class LuceneParallelStreamCollectorManager implements
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CollectorManager<LuceneParallelStreamCollector, LuceneParallelStreamCollectorResult> {
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private final ScoreMode scoreMode;
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private final LuceneParallelStreamConsumer streamConsumer;
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private final AtomicBoolean stopped;
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private final AtomicLong totalHitsCounter;
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private final ReentrantLock lock;
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public static LuceneParallelStreamCollectorManager fromConsumer(
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ScoreMode scoreMode,
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LuceneParallelStreamConsumer streamConsumer) {
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return new LuceneParallelStreamCollectorManager(scoreMode, streamConsumer);
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}
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public LuceneParallelStreamCollectorManager(ScoreMode scoreMode, LuceneParallelStreamConsumer streamConsumer) {
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this.scoreMode = scoreMode;
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this.streamConsumer = streamConsumer;
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this.stopped = new AtomicBoolean();
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this.totalHitsCounter = new AtomicLong();
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this.lock = new ReentrantLock();
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}
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@Override
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public LuceneParallelStreamCollector newCollector() {
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return new LuceneParallelStreamCollector(0, scoreMode, streamConsumer, stopped, totalHitsCounter, lock);
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}
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@Override
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public LuceneParallelStreamCollectorResult reduce(
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Collection<LuceneParallelStreamCollector> collectors) {
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return new LuceneParallelStreamCollectorResult(totalHitsCounter.get());
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}
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}
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