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<?php
namespace SMW\Deserializers;
use Deserializers\Deserializer;
use OutOfBoundsException;
use SMW\Exporter\Element\ExpElement;
use SMWExpData as ExpData;
/**
* @license GNU GPL v2+
* @since 2.2
*
* @author mwjames
*/
class ExpDataDeserializer implements Deserializer {
/**
* @see Deserializers::deserialize
*
* @since 2.2
*
* @return ExpData
* @throws OutOfBoundsException
*/
public function deserialize( $serialization ) {
$expData = null;
if ( isset( $serialization['version'] ) && $serialization['version'] !== 0.1 ) {
throw new OutOfBoundsException( 'Serializer/Deserializer version does not match, please update your data' );
}
if ( isset( $serialization['subject'] ) ) {
$expData = $this->newExpData( $serialization['subject'] );
}
if ( !$expData instanceof ExpData ) {
throw new OutOfBoundsException( 'ExpData could not be created probably due to an invalid subject' );
}
$this->doDeserialize( $serialization, $expData );
return $expData;
}
private function newExpData( $subject ) {
return new ExpData( ExpElement::newFromSerialization( $subject ) );
}
private function doDeserialize( $serialization, $expData ) {
foreach ( $serialization['data'] as $data ) {
$property = ExpElement::newFromSerialization( $data['property'] );
foreach ( $data['children'] as $child ) {
$expData->addPropertyObjectValue(
$property,
$this->doDeserializeChild( $child )
);
}
}
}
private function doDeserializeChild( $serialization ) {
if ( !isset( $serialization['subject'] ) ) {
return ExpElement::newFromSerialization( $serialization );
}
$element = $this->newExpData( $serialization['subject'] );
$this->doDeserialize( $serialization, $element );
return $element;
}
}
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