84 lines
3.5 KiB
Java
84 lines
3.5 KiB
Java
package it.cavallium.dbengine.lucene.searcher;
|
|
|
|
import io.net5.buffer.api.Send;
|
|
import it.cavallium.dbengine.database.LLUtils;
|
|
import it.cavallium.dbengine.database.disk.LLIndexSearchers;
|
|
import it.cavallium.dbengine.database.disk.LLTempLMDBEnv;
|
|
import it.cavallium.dbengine.lucene.searcher.LLSearchTransformer.TransformerInput;
|
|
import reactor.core.publisher.Mono;
|
|
|
|
public class AdaptiveMultiSearcher implements MultiSearcher {
|
|
|
|
private static final MultiSearcher count = new CountMultiSearcher();
|
|
|
|
private static final MultiSearcher scoredPaged = new ScoredPagedMultiSearcher();
|
|
|
|
private static final MultiSearcher unsortedUnscoredContinuous = new UnsortedUnscoredStreamingMultiSearcher();
|
|
|
|
private final UnsortedScoredFullMultiSearcher unsortedScoredFull;
|
|
|
|
private final SortedScoredFullMultiSearcher sortedScoredFull;
|
|
|
|
public AdaptiveMultiSearcher(LLTempLMDBEnv env) {
|
|
unsortedScoredFull = new UnsortedScoredFullMultiSearcher(env);
|
|
sortedScoredFull = new SortedScoredFullMultiSearcher(env);
|
|
}
|
|
|
|
@Override
|
|
public Mono<LuceneSearchResult> collectMulti(Mono<Send<LLIndexSearchers>> indexSearchersMono,
|
|
LocalQueryParams queryParams,
|
|
String keyFieldName,
|
|
LLSearchTransformer transformer) {
|
|
if (transformer == LLSearchTransformer.NO_TRANSFORMATION) {
|
|
return transformedCollectMulti(indexSearchersMono, queryParams, keyFieldName, transformer);
|
|
} else {
|
|
return LLUtils.usingSendResource(indexSearchersMono, indexSearchers -> transformer
|
|
.transform(Mono.fromCallable(() -> new TransformerInput(indexSearchers, queryParams)))
|
|
.flatMap(queryParams2 -> this
|
|
.transformedCollectMulti(indexSearchersMono, queryParams2, keyFieldName, LLSearchTransformer.NO_TRANSFORMATION)),
|
|
true);
|
|
}
|
|
}
|
|
|
|
// Remember to change also AdaptiveLocalSearcher
|
|
public Mono<LuceneSearchResult> transformedCollectMulti(Mono<Send<LLIndexSearchers>> indexSearchersMono,
|
|
LocalQueryParams queryParams,
|
|
String keyFieldName,
|
|
LLSearchTransformer transformer) {
|
|
// offset + limit
|
|
long realLimit = queryParams.offsetLong() + queryParams.limitLong();
|
|
long maxAllowedInMemoryLimit
|
|
= Math.max(MultiSearcher.MAX_IN_MEMORY_SIZE, (long) queryParams.pageLimits().getPageLimit(0));
|
|
|
|
return LLUtils.usingSendResource(indexSearchersMono, indexSearchers -> {
|
|
if (queryParams.limitLong() == 0) {
|
|
return count.collectMulti(indexSearchersMono, queryParams, keyFieldName, transformer);
|
|
} else if (queryParams.isSorted() || queryParams.needsScores()) {
|
|
if (realLimit <= maxAllowedInMemoryLimit) {
|
|
return scoredPaged.collectMulti(indexSearchersMono, queryParams, keyFieldName, transformer);
|
|
} else {
|
|
if ((queryParams.isSorted() && !queryParams.isSortedByScore())) {
|
|
if (queryParams.limitLong() < MAX_IN_MEMORY_SIZE) {
|
|
throw new UnsupportedOperationException("Allowed limit is " + MAX_IN_MEMORY_SIZE + " or greater");
|
|
}
|
|
return sortedScoredFull.collectMulti(indexSearchersMono, queryParams, keyFieldName, transformer);
|
|
} else {
|
|
if (queryParams.limitLong() < MAX_IN_MEMORY_SIZE) {
|
|
throw new UnsupportedOperationException("Allowed limit is " + MAX_IN_MEMORY_SIZE + " or greater");
|
|
}
|
|
return unsortedScoredFull.collectMulti(indexSearchersMono, queryParams, keyFieldName, transformer);
|
|
}
|
|
}
|
|
} else {
|
|
// Run large/unbounded searches using the continuous multi searcher
|
|
return unsortedUnscoredContinuous.collectMulti(indexSearchersMono, queryParams, keyFieldName, transformer);
|
|
}
|
|
}, true);
|
|
}
|
|
|
|
@Override
|
|
public String getName() {
|
|
return "adaptive local";
|
|
}
|
|
}
|