68 lines
2.3 KiB
Java
68 lines
2.3 KiB
Java
package it.cavallium.dbengine.lucene.collector;
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import it.cavallium.dbengine.database.disk.LLTempLMDBEnv;
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import it.cavallium.dbengine.lucene.FullDocs;
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import it.cavallium.dbengine.lucene.LLDoc;
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import it.cavallium.dbengine.lucene.LLFieldDoc;
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import it.cavallium.dbengine.lucene.LLScoreDoc;
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import java.io.IOException;
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import java.util.Collection;
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import java.util.List;
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import org.apache.commons.lang3.NotImplementedException;
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import org.apache.lucene.search.CollectorManager;
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import org.apache.lucene.search.ScoreMode;
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import org.apache.lucene.search.Sort;
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import org.apache.lucene.search.TotalHits;
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import reactor.core.publisher.Flux;
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public class LMDBFullScoreDocCollectorMultiManager implements
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CollectorMultiManager<FullDocs<LLScoreDoc>, FullDocs<LLScoreDoc>> {
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private final CollectorManager<LMDBFullScoreDocCollector, FullDocs<LLScoreDoc>> sharedCollector;
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public LMDBFullScoreDocCollectorMultiManager(LLTempLMDBEnv env, long limit, long totalHitsThreshold) {
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this.sharedCollector = LMDBFullScoreDocCollector.createSharedManager(env, limit, totalHitsThreshold);
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}
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public CollectorManager<LMDBFullScoreDocCollector, FullDocs<LLScoreDoc>> get(int shardIndex) {
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return new CollectorManager<>() {
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@Override
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public LMDBFullScoreDocCollector newCollector() throws IOException {
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return sharedCollector.newCollector();
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}
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@Override
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public FullDocs<LLScoreDoc> reduce(Collection<LMDBFullScoreDocCollector> collectors) throws IOException {
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var result = sharedCollector.reduce(collectors);
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return new FullDocs<>() {
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@Override
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public Flux<LLScoreDoc> iterate() {
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return result.iterate().map(doc -> new LLScoreDoc(doc.doc(), doc.score(), shardIndex));
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}
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@Override
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public Flux<LLScoreDoc> iterate(long skips) {
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return result.iterate(skips).map(doc -> new LLScoreDoc(doc.doc(), doc.score(), shardIndex));
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}
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@Override
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public TotalHits totalHits() {
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return result.totalHits();
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}
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};
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}
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};
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}
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@Override
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public ScoreMode scoreMode() {
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throw new NotImplementedException();
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}
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@Override
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public FullDocs<LLScoreDoc> reduce(List<FullDocs<LLScoreDoc>> results) {
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//noinspection unchecked
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return FullDocs.merge(Sort.RELEVANCE, (FullDocs<LLScoreDoc>[]) results.toArray(FullDocs<?>[]::new));
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}
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}
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