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<?php |
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namespace EWW\Dpf\Services\Api; |
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/* |
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* This file is part of the TYPO3 CMS project. |
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* |
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* It is free software; you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License, either version 2 |
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* of the License, or any later version. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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* |
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* The TYPO3 project - inspiring people to share! |
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*/ |
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use EWW\Dpf\Domain\Model\Document; |
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class DocumentToJsonMapper |
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{ |
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/** |
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* @var string |
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*/ |
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protected $mapping; |
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/** |
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* @var \DOMXpath |
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*/ |
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protected $xpath; |
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/** |
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* @return string |
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*/ |
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public function getMapping(): string |
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{ |
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return $this->mapping; |
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} |
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/** |
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* @param string $mapping |
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*/ |
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public function setMapping(string $mapping): void |
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{ |
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$this->mapping = $mapping; |
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} |
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/** |
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* Gets a json representation of the given document |
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* |
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* @param Document $document |
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* @return string |
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*/ |
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public function getJson(Document $document) |
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{ |
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$internalFormat = new \EWW\Dpf\Helper\InternalFormat($document->getXmlData()); |
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$this->xpath = $internalFormat->getXpath(); |
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$mapping = json_decode($this->getMapping(), true); |
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$data = $this->crawl($mapping); |
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return json_encode($data); |
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} |
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/** |
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* Crawls the given configuration data (an array representation of json data) and creates the document-json by |
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* using the mapping information inside this configuration. |
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* |
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* @param array $elements |
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* @param \DOMNode $parentNode |
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* @return array |
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*/ |
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protected function crawl($elements, \DOMNode $parentNode = null) |
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{ |
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$branch = []; |
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foreach ($elements as $index => $items) { |
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if ($index == "_mapping") { |
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continue; |
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} |
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if (array_key_exists(0, $items)) { |
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$items = $items[0]; |
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} |
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$mapping = $items["_mapping"]; |
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if (is_array($items) && sizeof($items) - (array_key_exists("_mapping", $items)? 1 : 0) > 0) { |
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if (empty($parentNode) || $parentNode instanceof \DOMElement) { |
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$nodes = $this->xpath->query($mapping, $parentNode); |
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if ($nodes->length == 1) { |
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$branch[$index] = $this->crawl($items, $nodes->item(0)); |
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} else { |
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foreach ($nodes as $node) { |
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$branch[$index][] = $this->crawl($items, $node); |
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} |
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} |
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} |
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} else { |
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if (empty($parentNode) || $parentNode instanceof \DOMElement) { |
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$nodes = $this->xpath->query($mapping, $parentNode); |
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if ($nodes->length == 1) { |
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$branch[$index] = trim($nodes->item(0)->nodeValue); |
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} else { |
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foreach ($nodes as $k => $node) { |
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$branch[$index][] = trim($node->nodeValue); |
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} |
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} |
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} |
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} |
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} |
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return $branch; |
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} |
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} |
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kitodo /
kitodo-publication
