protected function getHeaderField($headerName, $properties)
 {
     if (isset($properties[$headerName . '_email'])) {
         $headerEmailProperty = $headerName . '_email';
         $headerNameProperty = $headerName . '_name';
         if (strlen(trim($properties[$headerEmailProperty]))) {
             $email = new Kaltura_Client_Type_StringValue();
             $email->value = $properties[$headerEmailProperty];
             $name = null;
             if (isset($properties[$headerNameProperty]) && strlen(trim($properties[$headerNameProperty]))) {
                 $name = new Kaltura_Client_Type_StringValue();
                 $name->value = $properties[$headerNameProperty];
             }
             $recipient = new Kaltura_Client_EmailNotification_Type_EmailNotificationRecipient();
             $recipient->email = $email;
             $recipient->name = $name;
             $recipientProvider = new Kaltura_Client_EmailNotification_Type_EmailNotificationStaticRecipientProvider();
             $recipientProvider->emailRecipients = array();
             $recipientProvider->emailRecipients[] = $recipient;
             return $recipientProvider;
         } else {
             return Kaltura_Client_ClientBase::getKalturaNullValue();
         }
     }
 }