ViaVersion/api/src/main/java/us/myles/ViaVersion/api/type/types/ArrayType.java

40 lines
1.1 KiB
Java

package us.myles.ViaVersion.api.type.types;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion.api.type.Type;
import java.lang.reflect.Array;
public class ArrayType<T> extends Type<T[]> {
private final Type<T> elementType;
public ArrayType(Type<T> type) {
super(type.getTypeName() + " Array", (Class<T[]>) getArrayClass(type.getOutputClass()));
this.elementType = type;
}
public static Class<?> getArrayClass(Class<?> componentType) {
// Should only happen once per class init.
return Array.newInstance(componentType, 0).getClass();
}
@Override
public T[] read(ByteBuf buffer) throws Exception {
int amount = Type.VAR_INT.readPrimitive(buffer);
T[] array = (T[]) Array.newInstance(elementType.getOutputClass(), amount);
for (int i = 0; i < amount; i++) {
array[i] = elementType.read(buffer);
}
return array;
}
@Override
public void write(ByteBuf buffer, T[] object) throws Exception {
Type.VAR_INT.writePrimitive(buffer, object.length);
for (T o : object) {
elementType.write(buffer, o);
}
}
}