protected function _loadViewerCertificateData(\SimpleXMLElement $sxml)
{
$item = null;
if ($this->exist($sxml)) {
$item = new ViewerCertificateData();
$item->setCloudFront($this->cloudFront);
$item->iamCertificateId = $this->exist($sxml->IAMCertificateId) ? (string) $sxml->IAMCertificateId : null;
$item->sslSupportMethod = $this->exist($sxml->SSLSupportMethod) ? (string) $sxml->SSLSupportMethod : null;
$item->minimumProtocolVersion = $this->exist($sxml->MinimumProtocolVersion) ? (string) $sxml->MinimumProtocolVersion : null;
}
return $item;
}