38 lines
1.2 KiB
Java
38 lines
1.2 KiB
Java
package it.cavallium.data.generator.nativedata;
|
|
|
|
import it.cavallium.data.generator.DataSerializer;
|
|
import java.io.DataInput;
|
|
import java.io.DataOutput;
|
|
import java.io.IOException;
|
|
import org.jetbrains.annotations.NotNull;
|
|
|
|
public class NullableInt52Serializer implements DataSerializer<NullableInt52> {
|
|
|
|
public static final NullableInt52Serializer INSTANCE = new NullableInt52Serializer();
|
|
|
|
@Override
|
|
public void serialize(DataOutput dataOutput, @NotNull NullableInt52 data) throws IOException {
|
|
// 0b10000000 = empty, 0b00000000 = with value
|
|
if (data.isEmpty()) {
|
|
dataOutput.writeByte(0b10000000);
|
|
} else {
|
|
dataOutput.write(Int52Serializer.toByteArray(data.get().getValue()));
|
|
}
|
|
}
|
|
|
|
@NotNull
|
|
@Override
|
|
public NullableInt52 deserialize(DataInput dataInput) throws IOException {
|
|
// 0b10000000 = empty, 0b00000000 = with value
|
|
byte firstByteAndIsPresent = dataInput.readByte();
|
|
if ((firstByteAndIsPresent & 0b10000000) != 0) {
|
|
return NullableInt52.empty();
|
|
} else {
|
|
byte[] secondPart = new byte[7];
|
|
secondPart[0] = (byte) (firstByteAndIsPresent & 0b00001111);
|
|
dataInput.readFully(secondPart, 1, secondPart.length - 1);
|
|
return NullableInt52.of(Int52.fromLong(Int52Serializer.fromByteArray(secondPart)));
|
|
}
|
|
}
|
|
}
|