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<?php |
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namespace WebStream\Delegate; |
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use WebStream\Core\CoreInterface; |
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use WebStream\Exception\SystemException; |
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use WebStream\Exception\DelegateException; |
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use WebStream\DI\Injector; |
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/** |
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* ExceptionDelegator |
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* @author Ryuichi TANAKA. |
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* @since 2014/05/05 |
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* @version 0.7 |
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*/ |
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class ExceptionDelegator |
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{ |
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use Injector; |
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/** |
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* @var CoreInterface インスタンス |
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*/ |
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private $instance; |
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/** |
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* @var string メソッド名 |
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*/ |
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private $method; |
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/** |
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* @var \Exception 例外オブジェクト |
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*/ |
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private $exceptionObject; |
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/** |
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* @var array<AnnotationContainer> 例外ハンドリングリスト |
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*/ |
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private $exceptionHandler; |
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/** |
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* constructor |
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*/ |
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public function __construct(CoreInterface $instance, \Exception $exceptionObject, $method = null) |
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{ |
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$this->instance = $instance; |
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$this->method = $method; |
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$this->exceptionObject = $exceptionObject; |
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$this->exceptionHandler = []; |
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} |
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/** |
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* 例外ハンドリングリストを設定する |
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* @param array<AnnotationContainer> 例外ハンドリングリスト |
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*/ |
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public function setExceptionHandler(array $exceptionHandler) |
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{ |
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$this->exceptionHandler = $exceptionHandler; |
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} |
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/** |
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* 例外を実行する |
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*/ |
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public function raise() |
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{ |
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// 捕捉可能な例外の場合のみDelegateExceptionでラップする |
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// そうでない場合はそのままスロー |
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if ($this->exceptionObject instanceof SystemException) { |
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throw $this->exceptionObject; |
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} else { |
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$originException = $this->exceptionObject; |
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$delegateException = null; |
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if ($originException instanceof DelegateException) { |
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// 複数レイヤ間で例外がやりとりされる場合、すでにDelegateExceptionでラップ済みなので戻す |
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$originException = $delegateException->getOriginException(); |
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} |
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$invokeMethods = []; |
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foreach ($this->exceptionHandler as $exceptionHandlerAnnotation) { |
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$exceptions = $exceptionHandlerAnnotation->exceptions; |
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$refMethod = $exceptionHandlerAnnotation->method; |
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foreach ($exceptions as $exception) { |
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if (is_a($originException, $exception)) { |
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// 一つのメソッドに複数の捕捉例外が指定された場合(派生例外クラス含む)、先勝で1回のみ実行する |
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// そうでなければ複数回メソッドが実行されるため |
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// ただし同一クラス内に限る(親クラスの同一名のメソッドは実行する) |
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// TODO ここはテストを追加する |
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$classpath = $refMethod->class . "#" . $refMethod->name; |
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if (!array_key_exists($classpath, $invokeMethods)) { |
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$invokeMethods[$classpath] = $refMethod; |
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} |
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} |
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} |
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} |
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if (count($invokeMethods) > 0) { |
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$delegateException = new DelegateException($this->exceptionObject); |
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$delegateException->enableHandled(); |
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} |
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foreach ($invokeMethods as $classpath => $invokeMethod) { |
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$params = ["class" => get_class($this->instance), "method" => $this->method, "exception" => $originException]; |
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$invokeMethod->invokeArgs($this->instance, [$params]); |
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$this->logger->debug("Execution of handling is success: " . $classpath); |
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} |
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throw $delegateException ?: $originException; |
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} |
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} |
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} |
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webstream-framework /
WebStream
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