CavalliumDBEngine/src/main/java/it/cavallium/dbengine/database/LLKeyValueDatabase.java
Andrea Cavalli 6315175dc4 Java modules
2022-04-09 02:45:42 +02:00

73 lines
2.5 KiB
Java

package it.cavallium.dbengine.database;
import com.google.common.primitives.Ints;
import com.google.common.primitives.Longs;
import io.micrometer.core.instrument.MeterRegistry;
import io.netty5.buffer.api.BufferAllocator;
import it.cavallium.dbengine.client.MemoryStats;
import it.cavallium.dbengine.database.collections.DatabaseInt;
import it.cavallium.dbengine.database.collections.DatabaseLong;
import java.nio.charset.StandardCharsets;
import java.util.Map.Entry;
import org.jetbrains.annotations.Nullable;
import org.rocksdb.TableProperties;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
public interface LLKeyValueDatabase extends LLSnapshottable, LLKeyValueDatabaseStructure {
Mono<? extends LLSingleton> getSingleton(byte[] singletonListColumnName, byte[] name, byte @Nullable[] defaultValue);
Mono<? extends LLDictionary> getDictionary(byte[] columnName, UpdateMode updateMode);
@Deprecated
default Mono<? extends LLDictionary> getDeprecatedSet(String name, UpdateMode updateMode) {
return getDictionary(ColumnUtils.deprecatedSet(name).name().getBytes(StandardCharsets.US_ASCII), updateMode);
}
default Mono<? extends LLDictionary> getDictionary(String name, UpdateMode updateMode) {
return getDictionary(ColumnUtils.dictionary(name).name().getBytes(StandardCharsets.US_ASCII), updateMode);
}
default Mono<? extends LLSingleton> getSingleton(String singletonListName, String name) {
return getSingleton(ColumnUtils.special(singletonListName).name().getBytes(StandardCharsets.US_ASCII),
name.getBytes(StandardCharsets.US_ASCII),
null
);
}
default Mono<DatabaseInt> getInteger(String singletonListName, String name, int defaultValue) {
return this
.getSingleton(ColumnUtils.special(singletonListName).name().getBytes(StandardCharsets.US_ASCII),
name.getBytes(StandardCharsets.US_ASCII),
Ints.toByteArray(defaultValue)
)
.map(DatabaseInt::new);
}
default Mono<DatabaseLong> getLong(String singletonListName, String name, long defaultValue) {
return this
.getSingleton(ColumnUtils.special(singletonListName).name().getBytes(StandardCharsets.US_ASCII),
name.getBytes(StandardCharsets.US_ASCII),
Longs.toByteArray(defaultValue)
)
.map(DatabaseLong::new);
}
Mono<Long> getProperty(String propertyName);
Mono<MemoryStats> getMemoryStats();
Mono<String> getRocksDBStats();
Flux<TableWithProperties> getTableProperties();
Mono<Void> verifyChecksum();
BufferAllocator getAllocator();
MeterRegistry getMeterRegistry();
Mono<Void> close();
}