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<?php declare(strict_types=1); |
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namespace Stratadox\RestResource; |
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use SimpleXMLElement; |
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use Throwable; |
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use function is_array; |
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use function is_numeric; |
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use function sprintf; |
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use function str_replace; |
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final class CondensedXmlFormatter implements ResourceFormatter |
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{ |
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use LinkRetrieval; |
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/** @var string */ |
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private $baseUri; |
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/** @var Singularizer */ |
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private $singularizer; |
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public function __construct(string $baseUri, Singularizer $singularizer = null) |
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{ |
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$this->baseUri = $baseUri; |
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$this->singularizer = $singularizer ?: BoogieSingularizer::default(); |
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} |
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public static function in( |
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string $locale, |
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string $baseUri |
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): ResourceFormatter { |
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return new self($baseUri, BoogieSingularizer::in($locale)); |
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} |
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public function from(RestResource $resource): string |
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{ |
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$xml = new SimpleXMLElement(sprintf( |
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'<?xml version="1.0"?><%s />', |
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$resource->name() |
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)); |
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try { |
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$this->toSimpleXML( |
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$resource->body() + $this->linksOf($resource, $this->baseUri), |
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$xml |
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); |
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return (string) $xml->asXML(); |
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} catch (Throwable $exception) { |
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throw CannotFormatXml::because($resource, $exception); |
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} |
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} |
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private function toSimpleXML( |
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array $input, |
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SimpleXMLElement $parent, |
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bool $alreadySingularized = false |
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): void { |
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foreach ($input as $key => $value) { |
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if (is_numeric($key)) { |
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$name = $alreadySingularized ? |
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'item' : $this->singularizer->convert($parent->getName()); |
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$singularized = true; |
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} else { |
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$name = str_replace(['<', '>'], '', (string) $key); |
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$singularized = false; |
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} |
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if (is_array($value)) { |
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$node = $parent->addChild($name); |
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$this->toSimpleXML($value, $node, $singularized); |
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} elseif ($singularized) { |
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$child = $parent->addChild($name); |
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$child->addAttribute('value', (string) $value); |
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} else { |
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$parent->addAttribute($name, (string) $value); |
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} |
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} |
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} |
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} |
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Stratadox /
RestResource
