50 lines
1.7 KiB
Java
50 lines
1.7 KiB
Java
package it.cavallium.dbengine.client;
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import it.cavallium.dbengine.database.LLIndexRequest;
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import it.cavallium.dbengine.database.LLSoftUpdateDocument;
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import it.cavallium.dbengine.database.LLUpdateDocument;
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import it.cavallium.dbengine.database.LLTerm;
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import it.cavallium.dbengine.database.LLUpdateFields;
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import it.cavallium.dbengine.database.LLUtils;
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import java.util.Set;
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import org.jetbrains.annotations.NotNull;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import reactor.util.function.Tuple2;
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public abstract class Indicizer<T, U> {
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/**
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* Transform a value to an IndexRequest.
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*/
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public abstract @NotNull Mono<? extends LLIndexRequest> toIndexRequest(@NotNull T key, @NotNull U value);
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public final @NotNull Mono<LLUpdateDocument> toDocument(@NotNull T key, @NotNull U value) {
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return toIndexRequest(key, value).map(req -> {
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if (req instanceof LLUpdateFields updateFields) {
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return new LLUpdateDocument(updateFields.items());
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} else if (req instanceof LLUpdateDocument updateDocument) {
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return updateDocument;
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} else if (req instanceof LLSoftUpdateDocument softUpdateDocument) {
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return new LLUpdateDocument(softUpdateDocument.items());
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} else {
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throw new UnsupportedOperationException("Unexpected request type: " + req);
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}
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});
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}
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public abstract @NotNull LLTerm toIndex(@NotNull T key);
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public abstract @NotNull String getKeyFieldName();
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public abstract @NotNull T getKey(String key);
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public abstract IndicizerAnalyzers getPerFieldAnalyzer();
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public abstract IndicizerSimilarities getPerFieldSimilarity();
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public Flux<Tuple2<String, Set<String>>> getMoreLikeThisDocumentFields(T key, U value) {
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return Flux.empty();
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}
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}
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