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<?php |
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/** |
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* Copyright MediaCT. All rights reserved. |
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* https://www.mediact.nl |
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*/ |
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namespace Mediact\CodingStandard\PhpStorm; |
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use InvalidArgumentException; |
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use SimpleXMLElement; |
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class XmlAccessor implements XmlAccessorInterface |
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{ |
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/** |
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* Get a child node, create it when it does not exist. |
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* |
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* @param SimpleXMLElement $element |
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* @param string $name |
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* @param array $attributes |
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* |
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* @return SimpleXMLElement |
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*/ |
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public function getChild( |
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SimpleXMLElement $element, |
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$name, |
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array $attributes = [] |
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) { |
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$xpath = $name . $this->getAttributesXpath($attributes); |
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$result = $element->xpath($xpath); |
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if (empty($result)) { |
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$node = $element->addChild($name); |
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$this->setAttributes($node, $attributes); |
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} else { |
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$node = reset($result); |
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} |
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return $node; |
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} |
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/** |
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* Get a descendant, create it when it does not exist. |
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* |
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* @param SimpleXMLElement $element |
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* @param array $path |
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* |
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* @return SimpleXMLElement |
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* |
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* @throws InvalidArgumentException When the descendant path is invalid. |
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*/ |
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public function getDescendant( |
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SimpleXMLElement $element, |
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array $path |
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) { |
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foreach ($path as $childProperties) { |
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if (!is_array($childProperties) |
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|| empty($childProperties) |
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) { |
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throw new InvalidArgumentException('Invalid descendant path'); |
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} |
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$name = array_shift($childProperties); |
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$attributes = count($childProperties) |
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? array_shift($childProperties) |
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: []; |
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$element = $this->getChild($element, $name, $attributes); |
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} |
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return $element; |
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} |
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/** |
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* Set the attributes of a node. |
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* |
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* @param SimpleXMLElement $element |
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* @param array $attributes |
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* |
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* @return void |
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*/ |
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public function setAttributes( |
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SimpleXMLElement $element, |
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array $attributes |
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) { |
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$storage = $element->attributes(); |
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foreach ($attributes as $key => $value) { |
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if (isset($storage->{$key})) { |
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$storage->{$key} = $value; |
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} else { |
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$element->addAttribute($key, $value); |
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} |
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} |
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} |
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/** |
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* Get an xpath for attributes. |
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* |
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* @param array $attributes |
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* |
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* @return string |
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*/ |
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private function getAttributesXpath(array $attributes) |
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{ |
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$xpath = ''; |
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if (!empty($attributes)) { |
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$parts = []; |
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foreach ($attributes as $key => $value) { |
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$parts[] = '@' . $key . '="' . $value . '"'; |
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} |
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$xpath .= '[' . implode(' and ', $parts) . ']'; |
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} |
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return $xpath; |
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} |
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} |
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mediact /
coding-standard-phpstorm
