This commit is contained in:
Andrea Cavalli 2021-04-12 17:53:29 +02:00
parent 6753db7dbe
commit 41ba665a54
3 changed files with 157 additions and 2 deletions

View File

@ -32,7 +32,7 @@ public class DatabaseSetDictionaryHashed<T, TH> extends DatabaseMapDictionaryHas
} }
public static <T, TH> DatabaseSetDictionaryHashed<T, TH> simple(LLDictionary dictionary, public static <T, TH> DatabaseSetDictionaryHashed<T, TH> simple(LLDictionary dictionary,
SerializerFixedBinaryLength<T, byte[]> keySerializer, Serializer<T, byte[]> keySerializer,
Function<T, TH> keyHashFunction, Function<T, TH> keyHashFunction,
SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer) { SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer) {
return new DatabaseSetDictionaryHashed<>(dictionary, return new DatabaseSetDictionaryHashed<>(dictionary,
@ -45,7 +45,7 @@ public class DatabaseSetDictionaryHashed<T, TH> extends DatabaseMapDictionaryHas
public static <T, TH> DatabaseSetDictionaryHashed<T, TH> tail(LLDictionary dictionary, public static <T, TH> DatabaseSetDictionaryHashed<T, TH> tail(LLDictionary dictionary,
byte[] prefixKey, byte[] prefixKey,
SerializerFixedBinaryLength<T, byte[]> keySuffixSerializer, Serializer<T, byte[]> keySuffixSerializer,
Function<T, TH> keyHashFunction, Function<T, TH> keyHashFunction,
SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer) { SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer) {
return new DatabaseSetDictionaryHashed<>(dictionary, return new DatabaseSetDictionaryHashed<>(dictionary,

View File

@ -0,0 +1,79 @@
package it.cavallium.dbengine.database.collections;
import it.cavallium.dbengine.client.CompositeSnapshot;
import it.cavallium.dbengine.database.LLDictionary;
import it.cavallium.dbengine.database.serialization.Serializer;
import it.cavallium.dbengine.database.serialization.SerializerFixedBinaryLength;
import java.util.Map;
import java.util.function.Function;
import org.jetbrains.annotations.Nullable;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
@SuppressWarnings("unused")
public class SubStageGetterHashMap<T, U, TH> implements
SubStageGetter<Map<T, U>, DatabaseMapDictionaryHashed<T, U, TH>> {
private static final boolean assertsEnabled;
static {
boolean assertsEnabledTmp = false;
//noinspection AssertWithSideEffects
assert assertsEnabledTmp = true;
//noinspection ConstantConditions
assertsEnabled = assertsEnabledTmp;
}
private final Serializer<T, byte[]> keySerializer;
private final Serializer<U, byte[]> valueSerializer;
private final Function<T, TH> keyHashFunction;
private final SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer;
public SubStageGetterHashMap(Serializer<T, byte[]> keySerializer,
Serializer<U, byte[]> valueSerializer,
Function<T, TH> keyHashFunction,
SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer) {
this.keySerializer = keySerializer;
this.valueSerializer = valueSerializer;
this.keyHashFunction = keyHashFunction;
this.keyHashSerializer = keyHashSerializer;
}
@Override
public Mono<DatabaseMapDictionaryHashed<T, U, TH>> subStage(LLDictionary dictionary,
@Nullable CompositeSnapshot snapshot,
byte[] prefixKey,
Flux<byte[]> debuggingKeyFlux) {
Mono<DatabaseMapDictionaryHashed<T, U, TH>> result = Mono.just(DatabaseMapDictionaryHashed.tail(dictionary,
prefixKey,
keySerializer,
valueSerializer,
keyHashFunction,
keyHashSerializer
));
if (assertsEnabled) {
return checkKeyFluxConsistency(prefixKey, debuggingKeyFlux).then(result);
} else {
return result;
}
}
@Override
public boolean isMultiKey() {
return true;
}
@Override
public boolean needsDebuggingKeyFlux() {
return assertsEnabled;
}
private Mono<Void> checkKeyFluxConsistency(byte[] prefixKey, Flux<byte[]> keyFlux) {
return keyFlux.doOnNext(key -> {
assert key.length == prefixKey.length + getKeyHashBinaryLength();
}).then();
}
public int getKeyHashBinaryLength() {
return keyHashSerializer.getSerializedBinaryLength();
}
}

View File

@ -0,0 +1,76 @@
package it.cavallium.dbengine.database.collections;
import it.cavallium.dbengine.client.CompositeSnapshot;
import it.cavallium.dbengine.database.LLDictionary;
import it.cavallium.dbengine.database.collections.DatabaseEmpty.Nothing;
import it.cavallium.dbengine.database.serialization.Serializer;
import it.cavallium.dbengine.database.serialization.SerializerFixedBinaryLength;
import java.util.Map;
import java.util.function.Function;
import org.jetbrains.annotations.Nullable;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
@SuppressWarnings("unused")
public class SubStageGetterHashSet<T, TH> implements
SubStageGetter<Map<T, Nothing>, DatabaseSetDictionaryHashed<T, TH>> {
private static final boolean assertsEnabled;
static {
boolean assertsEnabledTmp = false;
//noinspection AssertWithSideEffects
assert assertsEnabledTmp = true;
//noinspection ConstantConditions
assertsEnabled = assertsEnabledTmp;
}
private final Serializer<T, byte[]> keySerializer;
private final Function<T, TH> keyHashFunction;
private final SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer;
public SubStageGetterHashSet(Serializer<T, byte[]> keySerializer,
Function<T, TH> keyHashFunction,
SerializerFixedBinaryLength<TH, byte[]> keyHashSerializer) {
this.keySerializer = keySerializer;
this.keyHashFunction = keyHashFunction;
this.keyHashSerializer = keyHashSerializer;
}
@Override
public Mono<DatabaseSetDictionaryHashed<T, TH>> subStage(LLDictionary dictionary,
@Nullable CompositeSnapshot snapshot,
byte[] prefixKey,
Flux<byte[]> debuggingKeyFlux) {
Mono<DatabaseSetDictionaryHashed<T, TH>> result = Mono.just(DatabaseSetDictionaryHashed.tail(dictionary,
prefixKey,
keySerializer,
keyHashFunction,
keyHashSerializer
));
if (assertsEnabled) {
return checkKeyFluxConsistency(prefixKey, debuggingKeyFlux).then(result);
} else {
return result;
}
}
@Override
public boolean isMultiKey() {
return true;
}
@Override
public boolean needsDebuggingKeyFlux() {
return assertsEnabled;
}
private Mono<Void> checkKeyFluxConsistency(byte[] prefixKey, Flux<byte[]> keyFlux) {
return keyFlux.doOnNext(key -> {
assert key.length == prefixKey.length + getKeyHashBinaryLength();
}).then();
}
public int getKeyHashBinaryLength() {
return keyHashSerializer.getSerializedBinaryLength();
}
}