Standard.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\MetaData\XML\Reader\Standard;
 
use ILIAS\MetaData\Elements\SetInterface;
use ILIAS\MetaData\XML\Version;
use ILIAS\MetaData\XML\Reader\ReaderInterface;
 
class Standard implements ReaderInterface
{
    protected ReaderInterface $structurally_coupled;
    protected ReaderInterface $legacy;
 
    public function __construct(
        ReaderInterface $structurally_coupled,
        ReaderInterface $legacy
    ) {
        $this->structurally_coupled = $structurally_coupled;
        $this->legacy = $legacy;
    }
 
    public function read(
        \SimpleXMLElement $xml,
        Version $version
    ): SetInterface {
        switch ($version) {
            case Version::V4_1_0:
                return $this->legacy->read($xml, $version);
 
            case Version::V10_0:
            default:
                return $this->structurally_coupled->read($xml, $version);
        }
    }
}