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<?php |
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/****************************************************************************** |
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* Copyright (c) 2017 Constantin Galbenu <[email protected]> * |
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******************************************************************************/ |
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namespace Gica\CodeAnalysis; |
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use Gica\CodeAnalysis\MethodListenerDiscovery\ListenerClassValidator; |
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use Gica\CodeAnalysis\Traits\FilesInDirectoryExtracter; |
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class AggregateEventHandlersValidator |
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{ |
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use FilesInDirectoryExtracter; |
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/** @var ListenerClassValidator */ |
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private $classValidator; |
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/** |
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* @var PhpClassInFileInspector |
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*/ |
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private $phpClassInFileInspector; |
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public function __construct( |
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ListenerClassValidator $classValidator, |
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PhpClassInFileInspector $phpClassInFileInspector = null |
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) |
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{ |
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$this->classValidator = $classValidator; |
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$this->phpClassInFileInspector = $phpClassInFileInspector ?? new PhpClassInFileInspector; |
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} |
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public function validateEventHandlers($directory) |
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{ |
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$files = $this->getFilesInDirectory($directory); |
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$files = $this->filterFiles($files); |
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foreach ($files as $file) { |
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$fullFilePath = $file; |
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$this->validateFile($fullFilePath); |
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} |
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} |
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/** |
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* @param string $filePath |
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* @return bool |
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*/ |
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protected function isListenerFileName($filePath) |
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{ |
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return preg_match('#\.php$#ims', $filePath); |
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} |
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/** |
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* @param $fullFilePath |
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*/ |
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protected function validateFile($fullFilePath) |
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{ |
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$fqn = $this->phpClassInFileInspector->getFullyQualifiedClassName($fullFilePath); |
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if ($fqn !== null) { |
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$this->validateEventHandlersInClass($fqn); |
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} |
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} |
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protected function filterFiles(array $files) |
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{ |
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return array_filter($files, [$this, 'isListenerFileName']); |
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} |
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/** |
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* @param $className |
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* @throws \Exception |
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*/ |
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private function validateEventHandlersInClass($className) |
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{ |
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$reflectionClass = new \ReflectionClass($className); |
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if (!$this->classValidator->isClassAccepted($reflectionClass)) { |
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return; |
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} |
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foreach ($reflectionClass->getMethods() as $reflectionMethod) { |
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if (!$this->isValidListenerMethod($reflectionMethod)) { |
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continue; |
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} |
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$eventClass = $this->getMessageClassFromMethod($reflectionMethod); |
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if ($eventClass) { |
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$validMethodName = $this->getMethodNameFromEventClass($eventClass); |
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if ($reflectionMethod->name != $validMethodName) { |
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throw new \Exception("Method's name is invalid: {$reflectionMethod->name} for event $eventClass in\n" . |
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"{$reflectionClass->getFileName()}:{$reflectionMethod->getStartLine()}\n" . |
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"should be $validMethodName"); |
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} |
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} |
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} |
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} |
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private function getMessageClassFromMethod(\ReflectionMethod $reflectionMethod) |
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{ |
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$reflectionParameter = $reflectionMethod->getParameters()[0]; |
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$typeHintedClass = $reflectionParameter->getClass(); |
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if ($typeHintedClass) { |
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return $typeHintedClass->getName(); |
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} |
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throw new \Exception("Method parameter is not type hinted"); |
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} |
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private function isValidListenerMethod(\ReflectionMethod $reflectionMethod) |
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{ |
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if ($reflectionMethod->getNumberOfParameters() == 0) { |
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return false; |
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} |
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return 0 === stripos($reflectionMethod->name, 'apply'); |
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} |
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private function getMethodNameFromEventClass($className) |
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{ |
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$parts = explode('\\', $className); |
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return 'apply' . end($parts); |
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} |
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} |
xprt64 /
code-analysis
