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<?php |
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namespace Alchemy\RestBundle\EventListener; |
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use Alchemy\Rest\Request\ContentTypeMatcher; |
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use Alchemy\Rest\Response\ExceptionTransformer; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\HttpFoundation\JsonResponse; |
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use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent; |
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use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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class ExceptionListener implements EventSubscriberInterface |
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{ |
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/** |
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* @var array |
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*/ |
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private $handledContentTypes; |
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/** |
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* @var ContentTypeMatcher |
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*/ |
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private $contentTypeMatcher; |
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/** |
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* @var ExceptionTransformer |
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*/ |
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private $exceptionTransformer; |
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/** |
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* @param ContentTypeMatcher $matcher |
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* @param ExceptionTransformer $exceptionTransformer |
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* @param array $handledContentTypes |
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*/ |
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public function __construct( |
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ContentTypeMatcher $matcher, |
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ExceptionTransformer $exceptionTransformer = null, |
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array $handledContentTypes = null |
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) { |
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$this->contentTypeMatcher = $matcher; |
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$this->exceptionTransformer = $exceptionTransformer ?: new ExceptionTransformer\DefaultExceptionTransformer(); |
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$this->handledContentTypes = $handledContentTypes ?: array('application/json'); |
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} |
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/** |
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* @param GetResponseForExceptionEvent $event |
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*/ |
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public function onKernelException(GetResponseForExceptionEvent $event) |
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{ |
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$request = $event->getRequest(); |
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$acceptHeader = $request->headers->get('Accept', '*/*'); |
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if (!$this->contentTypeMatcher->matches($acceptHeader, $this->handledContentTypes)) { |
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return; |
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} |
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$exception = $event->getException(); |
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$data = $this->exceptionTransformer->transformException($exception); |
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$status = $exception instanceof HttpExceptionInterface ? $exception->getStatusCode() : 500; |
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$event->setResponse(new JsonResponse($data, $status)); |
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} |
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public static function getSubscribedEvents() |
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{ |
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return array(KernelEvents::EXCEPTION => 'onKernelException'); |
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} |
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} |
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alchemy-fr /
rest-bundle
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.