class.ilHandler.php

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<?php

declare(strict_types=1);

namespace ILIAS\Export\ImportHandler\Parser\DOM;

use DOMDocument;
use DOMNode;
use DOMXPath;
use ilLogger;
use ILIAS\Export\ImportHandler\I\File\Path\ilHandlerInterface as ilFilePathHandlerInterface;
use ILIAS\Export\ImportHandler\I\File\XML\ilHandlerInterface as ilXMLFileHandlerInterface;
use ILIAS\Export\ImportHandler\I\File\XML\Node\Info\ilCollectionInterface as ilXMLFileNodeInfoCollectionInterface;
use ILIAS\Export\ImportHandler\I\File\XML\Node\Info\ilFactoryInterface as ilXMLFileNodeInfoFactoryInterface;
use ILIAS\Export\ImportHandler\I\Parser\DOM\ilHandlerInterface as ilDOMParserHandlerInterface;
use ILIAS\Export\ImportStatus\Exception\ilException as ilImportStatusException;

class ilHandler implements ilDOMParserHandlerInterface
{
    protected ilXMLFileHandlerInterface $xml_file_handler;
    protected ilXMLFileNodeInfoFactoryInterface $info;
    protected ilLogger $logger;
    protected DOMDocument $dom_doc;

    public function __construct(
        ilLogger $logger,
        ilXMLFileNodeInfoFactoryInterface $info,
    ) {
        $this->logger = $logger;
        $this->info = $info;
    }

    public function withFileHandler(ilXMLFileHandlerInterface $file_handler): ilDOMParserHandlerInterface
    {
        $clone = clone $this;
        $clone->xml_file_handler = $file_handler;
        $clone->dom_doc = $file_handler->loadDomDocument();
        return $clone;
    }

    public function getNodeInfoAt(ilFilePathHandlerInterface $path): ilXMLFileNodeInfoCollectionInterface
    {
        $dom_xpath = new DOMXPath($this->dom_doc);
        foreach ($this->xml_file_handler->getNamespaces() as $namespace) {
            $dom_xpath->registerNamespace($namespace->getPrefix(), $namespace->getNamespace());
        }
        $nodes = $dom_xpath->query($path->toString());
        $node_info_collection = $this->info->collection();
        foreach ($nodes as $node) {
            $node_info = $this->info->DOM()->withDOMNode($node);
            $node_info_collection = $node_info_collection->withElement($node_info);
        }
        return $node_info_collection;
    }
}