public void readBlockLight(ByteBuf input){
  byte[] handle=new byte[LIGHT_LENGTH];
  input.readBytes(handle);
  blockLight.setHandle(handle);
}

public void readBlockLight ( ByteBuf input ) { byte [ ] handle = new byte [ LIGHT_LENGTH ] ; input . readBytes ( handle ) ; blockLight . setHandle ( handle ) ; }
read block light from buffer .
