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<?php |
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declare(strict_types=1); |
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namespace Baruica\Xml\XmlReader; |
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final class DomDocXmlReader implements XmlReader |
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{ |
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private \DOMXPath $domXpath; |
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private function __construct(\DOMDocument $domDocument, array $namespaces = []) |
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{ |
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$this->domXpath = new \DOMXPath($domDocument); |
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foreach ($namespaces as $prefix => $namespace) { |
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if (false === $this->domXpath->registerNamespace($prefix, $namespace)) { |
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throw new \RuntimeException("Error while trying to register namespace [$namespace] with prefix [$prefix]"); |
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} |
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} |
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} |
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public static function fromFile(string $filePath, array $namespaces = []): self |
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{ |
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$domDocument = new \DOMDocument(); |
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try { |
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if (false === \file_exists($filePath) || false === $domDocument->load($filePath)) { |
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throw new \RuntimeException("Could not load xml file [$filePath]."); |
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} |
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} catch (\Exception $e) { |
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throw new \RuntimeException($e->getMessage()); |
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} |
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return new self($domDocument, $namespaces); |
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} |
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public static function fromString(string $xmlStr, array $namespaces = []): self |
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{ |
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$domDocument = new \DOMDocument(); |
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try { |
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if (false === $domDocument->loadXML($xmlStr)) { |
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throw new \RuntimeException("Could not load XML from string [$xmlStr]"); |
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} |
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} catch (\Exception $e) { |
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throw new \RuntimeException($e->getMessage()); |
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} |
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return new self($domDocument, $namespaces); |
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} |
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public function getList(string $xpath): \Generator |
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{ |
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if (null === $nodeList = $this->getNodeList($xpath)) { |
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return []; |
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} |
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foreach ($nodeList as $node) { |
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yield $this->getNodeValue($node); |
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} |
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} |
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public function getNodeList(string $xpath, \DOMNode $contextNode = null): \DOMNodeList |
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{ |
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try { |
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$nodeList = $this->domXpath->query($xpath, $contextNode); |
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} catch (\Throwable $e) { |
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return new \DOMNodeList(); |
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} |
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if (false === $nodeList) { |
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return new \DOMNodeList(); |
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} |
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return $nodeList; |
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} |
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public function getFirstNode(string $xpath, \DOMNode $contextNode = null): ?\DOMElement |
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{ |
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$nodeList = $this->getNodeList($xpath, $contextNode); |
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if (0 !== $nodeList->length) { |
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return $nodeList->item(0); |
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} |
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return null; |
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} |
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public function getLastNode(string $xpath, \DOMNode $contextNode = null): ?\DOMElement |
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{ |
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$nodeList = $this->getNodeList($xpath, $contextNode); |
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if (0 !== $nodeList->length) { |
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$lastIndex = $nodeList->length - 1; |
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return $nodeList->item($lastIndex); |
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} |
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return null; |
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} |
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public function getNodeAttribute(string $att, \DOMElement $node = null): ?string |
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{ |
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if (null !== $node) { |
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return $node->getAttribute($att); |
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} |
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return null; |
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} |
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public function getNodeValue(\DOMElement $node = null): ?string |
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{ |
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if (null !== $node) { |
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return $node->nodeValue; |
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} |
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return null; |
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} |
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public function getValue(string $xpath, \DOMNode $contextNode = null): ?string |
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{ |
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return $this->getNodeValue($this->getFirstNode($xpath, $contextNode)); |
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} |
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public function getLastValue(string $xpath, \DOMNode $contextNode = null): ?string |
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{ |
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return $this->getNodeValue($this->getLastNode($xpath, $contextNode)); |
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} |
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public function getNeighborNodeValue(string $neighborNodeName, \DOMElement $node = null): ?string |
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{ |
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if (null !== $node) { |
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return $this->getNodeValue( |
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$node->parentNode->getElementsByTagName($neighborNodeName)->item(0) |
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); |
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} |
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return null; |
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} |
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public function getValues(\DOMNodeList $contextNodes, string $keyNodeName, array $valNodes = [], \Closure $fn = null, array $fnParams = []): array |
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{ |
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$values = []; |
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foreach ($contextNodes as $node) { |
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$keyNodeValue = $this->getValue($keyNodeName, $node); |
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if (!\array_key_exists($keyNodeValue, $values)) { |
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$values[$keyNodeValue] = []; |
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} |
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foreach ($valNodes as $valNodeName) { |
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if (null !== $fn) { |
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$params = $fnParams; |
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\array_unshift($params, $this->getValue($valNodeName, $node)); |
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$values[$keyNodeValue] = $fn($params); |
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} else { |
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$values[$keyNodeValue] = $this->getValue($valNodeName, $node); |
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} |
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} |
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} |
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\ksort($values); |
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return $values; |
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166
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} |
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167
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} |
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baruica /
xml
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