/**
 * Constructor.
 *
 * @param   \XMLReader   $stream       The XMLReader stream object for the feed.
 * @param   InputFilter  $inputFilter  The InputFilter object to be used
 *
 * @since   3.1.4
 */
public function __construct(\XMLReader $stream, InputFilter $inputFilter = null)
{
    $this->stream = $stream;
    $this->inputFilter = $inputFilter ?: InputFilter::getInstance([], [], 1, 1);
}