CavalliumDBEngine/src/main/java/it/cavallium/dbengine/database/collections/SubStageGetterMap.java
Andrea Cavalli 818bd20ed9 Update netty
2021-10-01 19:17:33 +02:00

38 lines
1.3 KiB
Java

package it.cavallium.dbengine.database.collections;
import io.net5.buffer.api.Buffer;
import io.net5.buffer.api.Send;
import it.cavallium.dbengine.client.CompositeSnapshot;
import it.cavallium.dbengine.database.LLDictionary;
import it.cavallium.dbengine.database.LLUtils;
import it.cavallium.dbengine.database.serialization.Serializer;
import it.cavallium.dbengine.database.serialization.SerializerFixedBinaryLength;
import java.util.Map;
import org.jetbrains.annotations.Nullable;
import reactor.core.publisher.Mono;
public class SubStageGetterMap<T, U> implements SubStageGetter<Map<T, U>, DatabaseMapDictionary<T, U>> {
private final SerializerFixedBinaryLength<T> keySerializer;
private final Serializer<U> valueSerializer;
public SubStageGetterMap(SerializerFixedBinaryLength<T> keySerializer,
Serializer<U> valueSerializer) {
this.keySerializer = keySerializer;
this.valueSerializer = valueSerializer;
}
@Override
public Mono<DatabaseMapDictionary<T, U>> subStage(LLDictionary dictionary,
@Nullable CompositeSnapshot snapshot,
Mono<Send<Buffer>> prefixKeyMono) {
return LLUtils.usingSend(prefixKeyMono,
prefixKey -> Mono.fromSupplier(() -> DatabaseMapDictionary
.tail(dictionary, prefixKey, keySerializer, valueSerializer, null)), true);
}
public int getKeyBinaryLength() {
return keySerializer.getSerializedBinaryLength();
}
}