44 lines
1.6 KiB
Java
44 lines
1.6 KiB
Java
package it.cavallium.dbengine.lucene.searcher;
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import it.cavallium.dbengine.client.query.QueryParser;
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import it.cavallium.dbengine.client.query.current.data.QueryParams;
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import it.cavallium.dbengine.client.query.current.data.TotalHitsCount;
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import java.util.concurrent.ConcurrentLinkedQueue;
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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 org.apache.lucene.search.IndexSearcher;
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import org.apache.lucene.search.Query;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import reactor.core.scheduler.Scheduler;
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public class CountLuceneMultiSearcher implements LuceneMultiSearcher {
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@Override
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public Mono<LuceneShardSearcher> createShardSearcher(LocalQueryParams queryParams) {
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return Mono
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.fromCallable(() -> {
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AtomicLong totalHits = new AtomicLong(0);
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ConcurrentLinkedQueue<Mono<Void>> release = new ConcurrentLinkedQueue<>();
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return new LuceneShardSearcher() {
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@Override
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public Mono<Void> searchOn(IndexSearcher indexSearcher,
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Mono<Void> releaseIndexSearcher,
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LocalQueryParams queryParams) {
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return Mono
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.<Void>fromCallable(() -> {
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totalHits.addAndGet(indexSearcher.count(queryParams.query()));
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release.add(releaseIndexSearcher);
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return null;
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});
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}
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@Override
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public Mono<LuceneSearchResult> collect(LocalQueryParams queryParams, String keyFieldName) {
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return Mono.fromCallable(() -> new LuceneSearchResult(TotalHitsCount.of(totalHits.get(), true), Flux.empty(), Mono.when(release)));
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}
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};
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});
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}
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}
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