47 lines
1.9 KiB
Java
47 lines
1.9 KiB
Java
package it.cavallium.dbengine.database.collections;
|
|
|
|
import io.netty.buffer.api.Buffer;
|
|
import io.netty.buffer.api.BufferAllocator;
|
|
import io.netty.buffer.api.Send;
|
|
import it.cavallium.dbengine.database.LLUtils;
|
|
import it.cavallium.dbengine.database.serialization.SerializationException;
|
|
import it.cavallium.dbengine.database.serialization.Serializer;
|
|
import java.util.Map;
|
|
import java.util.Map.Entry;
|
|
import org.jetbrains.annotations.NotNull;
|
|
|
|
class ValueWithHashSerializer<X, Y> implements Serializer<Entry<X, Y>> {
|
|
|
|
private final BufferAllocator allocator;
|
|
private final Serializer<X> keySuffixSerializer;
|
|
private final Serializer<Y> valueSerializer;
|
|
|
|
ValueWithHashSerializer(BufferAllocator allocator,
|
|
Serializer<X> keySuffixSerializer,
|
|
Serializer<Y> valueSerializer) {
|
|
this.allocator = allocator;
|
|
this.keySuffixSerializer = keySuffixSerializer;
|
|
this.valueSerializer = valueSerializer;
|
|
}
|
|
|
|
@Override
|
|
public @NotNull DeserializationResult<Entry<X, Y>> deserialize(@NotNull Send<Buffer> serializedToReceive)
|
|
throws SerializationException {
|
|
try (var serialized = serializedToReceive.receive()) {
|
|
DeserializationResult<X> deserializedKey = keySuffixSerializer.deserialize(serialized.copy().send());
|
|
DeserializationResult<Y> deserializedValue = valueSerializer.deserialize(serialized.send());
|
|
return new DeserializationResult<>(Map.entry(deserializedKey.deserializedData(),
|
|
deserializedValue.deserializedData()), deserializedKey.bytesRead() + deserializedValue.bytesRead());
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public @NotNull Send<Buffer> serialize(@NotNull Entry<X, Y> deserialized) throws SerializationException {
|
|
try (Buffer keySuffix = keySuffixSerializer.serialize(deserialized.getKey()).receive()) {
|
|
try (Buffer value = valueSerializer.serialize(deserialized.getValue()).receive()) {
|
|
return LLUtils.compositeBuffer(allocator, keySuffix.send(), value.send());
|
|
}
|
|
}
|
|
}
|
|
}
|