Swift_SpoolTransport::newInstance PHP Method

    public static function newInstance(Swift_Spool $spool)
    {
        return new self($spool);
    }

 public function __construct(KConfig $config = null)
 {
     parent::__construct($config);
     $this->_message = Swift_Message::newInstance();
     switch ($config->method) {
         case 'sendmail':
             // WIP required -bs or -t switch
             $transport = Swift_SendmailTransport::newInstance($config->sendmail);
             break;
         case 'smtp':
             if ($config->smtpauth == 1) {
                 if ($config->smtpsecure != "none") {
                     $transport = Swift_SmtpTransport::newInstance($config->smtphost, $config->smtpport, $config->smtpsecure)->setUsername($config->smtpuser)->setPassword($config->smtppass);
                 } else {
                     $transport = Swift_SmtpTransport::newInstance($config->smtphost, $config->smtpport)->setUsername($config->smtpuser)->setPassword($config->smtppass);
                 }
             } else {
                 if ($config->smtpsecure != "none") {
                     $transport = Swift_SmtpTransport::newInstance($config->smtphost, $config->smtpport, $config->smtpsecure);
                 } else {
                     $transport = Swift_SmtpTransport::newInstance($config->smtphost, $config->smtpport);
                 }
             }
             break;
         case 'spool':
             // TODO: Make spool options configurable.
             $transport = Swift_SpoolTransport::newInstance(new Swift_FileSpool('/var/spool/swift'));
             break;
         case 'mail':
         default:
             $transport = Swift_MailTransport::newInstance();
             break;
     }
     $this->_mailer = Swift_Mailer::newInstance($transport);
 }