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<?php
/**
* Serializable class used to hold an XML element.
*
* @package simpleSAMLphp
* @version $Id$
*/
class SAML2_XML_Chunk {
/**
* The localName of the element.
*
* @var string
*/
public $localName;
/**
* The namespaceURI of this element.
*
* @var string
*/
public $namespaceURI;
/**
* The DOMElement we contain.
*
* @var DOMElement
*/
private $xml;
/**
* The DOMElement as a text string. Used during serialization.
*
* @var string|NULL
*/
private $xmlString;
/**
* Create a XMLChunk from a copy of the given DOMElement.
*
* @param DOMElement $xml The element we should copy.
*/
public function __construct(DOMElement $xml) {
$this->localName = $xml->localName;
$this->namespaceURI = $xml->namespaceURI;
$this->xml = SAML2_Utils::copyElement($xml);
}
/**
* Get this DOMElement.
*
* @return DOMElement This element.
*/
public function getXML() {
assert('$this->xml instanceof DOMElement || is_string($this->xmlString)');
if ($this->xml === NULL) {
$doc = new DOMDocument();
$doc->loadXML($this->xmlString);
$this->xml = $doc->firstChild;
}
return $this->xml;
}
/**
* Append this XML element to a different XML element.
*
* @param DOMElement $parent The element we should append this element to.
* @return DOMElement The new element.
*/
public function toXML(DOMElement $parent) {
return SAML2_Utils::copyElement($this->getXML(), $parent);
}
/**
* Serialization handler.
*
* Converts the XML data to a string that can be serialized
*
* @return array List of properties that should be serialized.
*/
public function __sleep() {
assert('$this->xml instanceof DOMElement || is_string($this->xmlString)');
if ($this->xmlString === NULL) {
$this->xmlString = $this->xml->ownerDocument->saveXML($this->xml);
}
return array('xmlString', 'localName', 'namespaceURI');
}
}
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