CavalliumDBEngine/src/main/java/it/cavallium/dbengine/lucene/searcher/CountLuceneLocalSearcher.java
2021-09-19 19:59:37 +02:00

33 lines
1.1 KiB
Java

package it.cavallium.dbengine.lucene.searcher;
import io.net5.buffer.api.Send;
import it.cavallium.dbengine.client.query.current.data.TotalHitsCount;
import it.cavallium.dbengine.database.LLUtils;
import it.cavallium.dbengine.database.disk.LLIndexContext;
import it.cavallium.dbengine.database.disk.LLIndexSearcher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.core.scheduler.Schedulers;
public class CountLuceneLocalSearcher implements LuceneLocalSearcher {
@Override
public Mono<Send<LuceneSearchResult>> collect(Mono<Send<LLIndexContext>> indexSearcherMono,
LocalQueryParams queryParams,
String keyFieldName) {
return Mono
.usingWhen(
indexSearcherMono,
indexSearcher -> Mono.fromCallable(() -> {
try (var is = indexSearcher.receive()) {
LLUtils.ensureBlocking();
return is.getIndexSearcher().count(queryParams.query());
}
}).subscribeOn(Schedulers.boundedElastic()),
is -> Mono.empty()
)
.map(count -> new LuceneSearchResult(TotalHitsCount.of(count, true), Flux.empty(), drop -> {}).send())
.doOnDiscard(Send.class, Send::close);
}
}