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<?php |
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declare(strict_types=1); |
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namespace POData\Readers\Atom\Processors; |
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use Closure; |
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use ParseError; |
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use POData\Common\ODataConstants; |
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use SplStack; |
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abstract class BaseNodeHandler |
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{ |
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private static $processExceptionMessage = |
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'FeedProcessor encountered %s %s Tag with name %s that we don\'t know how to process'; |
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private $charData = ''; |
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/** |
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* @var SplStack|callable |
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*/ |
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private $tagEndQueue; |
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private function resolveNamespaceToMethodTag($tagNamespace) |
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{ |
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$tags = [ |
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strtolower(ODataConstants::ODATA_METADATA_NAMESPACE) => 'Metadata', |
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strtolower(ODataConstants::ATOM_NAMESPACE) => 'Atom', |
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strtoLower(ODataConstants::ODATA_NAMESPACE) => 'Dataservice' |
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]; |
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return $tags[strtolower($tagNamespace)]; |
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} |
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public function handleStartNode($tagNamespace, $tagName, $attributes) |
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{ |
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$methodType = $this->resolveNamespaceToMethodTag($tagNamespace); |
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$method = 'handleStart' . $methodType . ucfirst(strtolower($tagName)); |
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if (!method_exists($this, $method)) { |
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$this->onParseError($methodType, 'Start', $tagName); |
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} |
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$this->{$method}($attributes); |
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} |
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public function handleCharacterData($characters) |
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{ |
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if (ord($characters) === 10 && empty($this->charData)) { |
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return; |
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} |
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$this->charData .= $characters; |
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} |
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final public function popCharData() |
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{ |
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$data = $this->charData; |
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$this->charData = ''; |
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return $data; |
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} |
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abstract public function handleChildComplete($objectModel); |
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abstract public function getObjetModelObject(); |
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final protected function arrayKeyOrDefault($array, $key, $default) |
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{ |
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if (array_key_exists($key, $array)) { |
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return $array[$key]; |
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} |
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foreach ($array as $objKey => $value) { |
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if (strtolower($key) === strtolower($objKey)) { |
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return $value; |
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} |
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} |
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return $default; |
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} |
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final protected function onParseError($namespace, $startEnd, $tagName) |
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{ |
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throw new ParseError(sprintf(self::$processExceptionMessage, $namespace, $startEnd, $tagName)); |
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} |
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protected function doNothing() |
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{ |
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return function () { |
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}; |
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} |
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protected function bindHere(Closure $closure) |
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{ |
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return $closure->bindTo($this, get_class($this)); |
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} |
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protected function enqueueEnd(Closure $closure) |
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{ |
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if (null === $this->tagEndQueue) { |
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$this->tagEndQueue = new SplStack(); |
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} |
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$this->tagEndQueue->push($this->bindHere($closure)); |
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} |
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public function handleEndNode($tagNamespace, $tagName) |
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{ |
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assert(!$this->tagEndQueue->isEmpty(), 'every node that opens should register a end tag'); |
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$endMethod = $this->tagEndQueue->pop(); |
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$endMethod(); |
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} |
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} |
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Algo-Web /
POData
