80 lines
2.5 KiB
Java
80 lines
2.5 KiB
Java
package it.cavallium.dbengine;
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import static java.util.Objects.requireNonNull;
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import static java.util.Objects.requireNonNullElseGet;
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import io.net5.buffer.api.Send;
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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;
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import it.cavallium.dbengine.lucene.searcher.LocalQueryParams;
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import it.cavallium.dbengine.lucene.searcher.LocalSearcher;
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import it.cavallium.dbengine.lucene.searcher.MultiSearcher;
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import it.cavallium.dbengine.lucene.searcher.LuceneSearchResult;
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import java.io.Closeable;
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import java.io.IOException;
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import java.util.concurrent.atomic.AtomicReference;
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import reactor.core.publisher.Mono;
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public class SwappableLuceneSearcher implements LocalSearcher, MultiSearcher, Closeable {
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private final AtomicReference<LocalSearcher> single = new AtomicReference<>(null);
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private final AtomicReference<MultiSearcher> multi = new AtomicReference<>(null);
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public SwappableLuceneSearcher() {
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}
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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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var single = requireNonNullElseGet(this.single.get(), this.multi::get);
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requireNonNull(single, "LuceneLocalSearcher not set");
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return single.collect(indexSearcherMono, queryParams, keyFieldName, transformer);
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}
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@Override
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public String getName() {
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var single = this.single.get();
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var multi = this.multi.get();
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if (single == multi) {
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if (single == null) {
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return "swappable";
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} else {
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return single.getName();
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}
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} else {
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return "swappable[single=" + single.getName() + ",multi=" + multi.getName() + "]";
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}
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}
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@Override
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public Mono<LuceneSearchResult> collectMulti(Mono<Send<LLIndexSearchers>> indexSearchersMono,
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LocalQueryParams queryParams,
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String keyFieldName,
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LLSearchTransformer transformer) {
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var multi = requireNonNull(this.multi.get(), "LuceneMultiSearcher not set");
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return multi.collectMulti(indexSearchersMono, queryParams, keyFieldName, transformer);
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}
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public void setSingle(LocalSearcher single) {
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this.single.set(single);
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}
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public void setMulti(MultiSearcher multi) {
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this.multi.set(multi);
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}
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@Override
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public void close() throws IOException {
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if (this.single.get() instanceof Closeable closeable) {
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closeable.close();
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}
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if (this.multi.get() instanceof Closeable closeable) {
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closeable.close();
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}
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}
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}
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