CavalliumDBEngine/src/main/java/it/cavallium/dbengine/database/LLKeyValueDatabase.java

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