52 lines
1.8 KiB
Java
52 lines
1.8 KiB
Java
package it.cavallium.dbengine.lucene.searcher;
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import io.net5.buffer.api.Resource;
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import io.net5.buffer.api.Send;
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import it.cavallium.dbengine.client.query.current.data.TotalHitsCount;
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import it.cavallium.dbengine.database.LLUtils;
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import it.cavallium.dbengine.database.disk.LLIndexSearcher;
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import it.cavallium.dbengine.database.disk.LLIndexSearchers;
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import it.cavallium.dbengine.lucene.searcher.LLSearchTransformer.TransformerInput;
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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.Schedulers;
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public class CountLocalSearcher implements LocalSearcher {
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@Override
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public Mono<LuceneSearchResult> collect(Mono<Send<LLIndexSearcher>> indexSearcherMono,
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LocalQueryParams queryParams,
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String keyFieldName,
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LLSearchTransformer transformer) {
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return Mono
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.usingWhen(
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indexSearcherMono,
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indexSearcher -> {
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Mono<LocalQueryParams> queryParamsMono;
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if (transformer == LLSearchTransformer.NO_TRANSFORMATION) {
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queryParamsMono = Mono.just(queryParams);
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} else {
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queryParamsMono = transformer.transform(Mono
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.fromSupplier(() -> new TransformerInput(LLIndexSearchers.unsharded(indexSearcher), queryParams)));
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}
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return queryParamsMono.flatMap(queryParams2 -> Mono.fromCallable(() -> {
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try (var is = indexSearcher.receive()) {
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LLUtils.ensureBlocking();
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return is.getIndexSearcher().count(queryParams2.query());
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}
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}).subscribeOn(Schedulers.boundedElastic()));
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},
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is -> Mono.empty()
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)
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.map(count -> new LuceneSearchResult(TotalHitsCount.of(count, true), Flux.empty(), null))
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.doOnDiscard(Send.class, Send::close)
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.doOnDiscard(Resource.class, Resource::close);
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}
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@Override
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public String getName() {
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return "count local";
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}
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}
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