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<?php |
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declare(strict_types=1); |
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namespace Chubbyphp\Serialization\Transformer; |
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use Doctrine\Common\Inflector\Inflector; |
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final class XmlTransformer implements TransformerInterface |
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{ |
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/** |
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* @var bool |
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*/ |
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private $formatOutput; |
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/** |
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* @var int |
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*/ |
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private $options; |
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/** |
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* @param bool $formatOutput |
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* @param int $options |
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*/ |
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public function __construct(bool $formatOutput = false, int $options = LIBXML_NOEMPTYTAG) |
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{ |
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$this->formatOutput = $formatOutput; |
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$this->options = $options; |
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} |
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/** |
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* @param array $data |
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* |
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* @return string |
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*/ |
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public function transform(array $data): string |
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{ |
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$document = new \DOMDocument('1.0', 'UTF-8'); |
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$document->formatOutput = $this->formatOutput; |
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$this->dataToNodes($document, $document, $data); |
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return trim($document->saveXML(null, $this->options)); |
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} |
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/** |
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* @param \DOMDocument $document |
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* @param \DOMNode $listNode |
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* @param array $data |
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*/ |
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private function dataToNodes(\DOMDocument $document, \DOMNode $listNode, array $data) |
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{ |
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foreach ($data as $key => $value) { |
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if (is_array($value)) { |
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$childNode = $document->createElement(is_int($key) ? Inflector::singularize($listNode->nodeName) : $key); |
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$this->dataToNodes($document, $childNode, $value); |
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} else { |
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if (is_string($value)) { |
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$childNode = $document->createElement($key); |
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$childNode->appendChild($document->createCDATASection($value)); |
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$childNode->setAttribute('type', 'string'); |
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} elseif (null === $value) { |
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$childNode = $document->createElement($key); |
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} else { |
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$childNode = $document->createElement($key, $this->getValueAsString($value)); |
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$childNode->setAttribute('type', $this->getType($value)); |
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} |
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} |
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$listNode->appendChild($childNode); |
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} |
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} |
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/** |
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* @param bool|float|int $value |
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* |
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* @return string|null |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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private function getValueAsString($value): string |
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{ |
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if (is_bool($value)) { |
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return $value ? 'true' : 'false'; |
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} |
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if (is_float($value) || is_int($value)) { |
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return (string) $value; |
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} |
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throw new \InvalidArgumentException(sprintf('Unsupported data type: %s', gettype($value))); |
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} |
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/** |
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* @param bool|float|int|string $value |
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* |
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* @return null|string |
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*/ |
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private function getType($value): string |
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{ |
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if (is_bool($value)) { |
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return 'boolean'; |
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} |
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if (is_float($value)) { |
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return 'float'; |
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} |
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if (is_int($value)) { |
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return 'integer'; |
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} |
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if (is_string($value)) { |
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return 'string'; |
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} |
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throw new \InvalidArgumentException(sprintf('Unsupported data type: %s', gettype($value))); |
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} |
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} |
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chubbyphp /
chubbyphp-serialization
