75 lines
2.7 KiB
Java
75 lines
2.7 KiB
Java
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package it.cavallium.dbengine.lucene.searcher;
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import io.net5.buffer.api.Send;
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import it.cavallium.dbengine.database.LLKeyScore;
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import it.cavallium.dbengine.database.LLUtils;
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import it.cavallium.dbengine.database.disk.LLIndexSearchers;
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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.LLFieldDoc;
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import it.cavallium.dbengine.lucene.LuceneUtils;
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import it.cavallium.dbengine.lucene.collector.DecimalBucketCollectorMultiManager;
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import it.cavallium.dbengine.lucene.collector.LMDBFullFieldDocCollector;
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import it.cavallium.dbengine.lucene.searcher.LLSearchTransformer.TransformerInput;
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import it.unimi.dsi.fastutil.doubles.DoubleArrayList;
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import org.apache.lucene.search.IndexSearcher;
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import org.warp.commonutils.log.Logger;
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import org.warp.commonutils.log.LoggerFactory;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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public class DecimalBucketMultiSearcher {
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protected static final Logger logger = LoggerFactory.getLogger(DecimalBucketMultiSearcher.class);
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public Mono<DoubleArrayList> collectMulti(Mono<Send<LLIndexSearchers>> indexSearchersMono,
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BucketParams bucketParams,
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LocalQueryParams queryParams,
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LLSearchTransformer transformer) {
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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 = LLUtils.usingSendResource(indexSearchersMono, indexSearchers -> transformer.transform(Mono
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.fromSupplier(() -> new TransformerInput(indexSearchers, queryParams))), true);
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}
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return queryParamsMono.flatMap(queryParams2 -> LLUtils.usingSendResource(indexSearchersMono, indexSearchers -> this
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// Search results
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.search(indexSearchers.shards(), bucketParams, queryParams2)
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// Ensure that one result is always returned
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.single(),
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true));
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}
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private Mono<DoubleArrayList> search(Iterable<IndexSearcher> indexSearchers,
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BucketParams bucketParams,
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LocalQueryParams queryParams) {
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return Mono
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.fromCallable(() -> {
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LLUtils.ensureBlocking();
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return new DecimalBucketCollectorMultiManager(bucketParams.min(),
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bucketParams.max(),
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bucketParams.buckets(),
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bucketParams.bucketFieldName(),
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bucketParams.valueFieldName()
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);
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})
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.flatMap(cmm -> Flux
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.fromIterable(indexSearchers)
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.flatMap(shard -> Mono.fromCallable(() -> {
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LLUtils.ensureBlocking();
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var collector = cmm.get(shard);
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return shard.search(queryParams.query(), collector);
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}))
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.collectList()
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.flatMap(results -> Mono.fromCallable(() -> {
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LLUtils.ensureBlocking();
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return cmm.reduce(results);
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}))
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);
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}
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}
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