/**
* Create the XAV request.
*
* @return string
*/
private function createRequest()
{
$xml = new DOMDocument();
$xml->formatOutput = true;
$avRequest = $xml->appendChild($xml->createElement('AddressValidationRequest'));
$avRequest->setAttribute('xml:lang', 'en-US');
$request = $avRequest->appendChild($xml->createElement('Request'));
$node = $xml->importNode($this->createTransactionNode(), true);
$request->appendChild($node);
$request->appendChild($xml->createElement('RequestAction', 'XAV'));
if (null !== $this->requestOption) {
$request->appendChild($xml->createElement('RequestOption', $this->requestOption));
}
if (null !== $this->maxSuggestion) {
$avRequest->appendChild($xml->createElement('MaximumListSize', $this->maxSuggestion));
}
if (null !== $this->address) {
$addressNode = $avRequest->appendChild($xml->createElement('AddressKeyFormat'));
if ($this->address->getAttentionName()) {
$addressNode->appendChild($xml->createElement('ConsigneeName', $this->address->getAttentionName()));
}
if ($this->address->getBuildingName()) {
$addressNode->appendChild($xml->createElement('BuildingName', $this->address->getBuildingName()));
}
if ($this->address->getAddressLine1()) {
$addressNode->appendChild($xml->createElement('AddressLine', $this->address->getAddressLine1()));
}
if ($this->address->getAddressLine2()) {
$addressNode->appendChild($xml->createElement('AddressLine', $this->address->getAddressLine2()));
}
if ($this->address->getAddressLine3()) {
$addressNode->appendChild($xml->createElement('AddressLine', $this->address->getAddressLine3()));
}
if ($this->address->getStateProvinceCode()) {
$addressNode->appendChild($xml->createElement('PoliticalDivision2', $this->address->getStateProvinceCode()));
}
if ($this->address->getCity()) {
$addressNode->appendChild($xml->createElement('PoliticalDivision1', $this->address->getCity()));
}
if ($this->address->getCountryCode()) {
$addressNode->appendChild($xml->createElement('CountryCode', $this->address->getCountryCode()));
}
if ($this->address->getPostalCode()) {
$addressNode->appendChild($xml->createElement('PostcodePrimaryLow', $this->address->getPostalCode()));
}
}
return $xml->saveXML();
}
