Listener for JMS Serializer

JsonSerializerListener.php

<?php

namespace Talentec\MainBundle\Listener;

use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;

use Doctrine\Common\Annotations\Reader;
use Doctrine\Common\Util\ClassUtils;
use Talentec\MainBundle\Annotation\Serialize;
use Symfony\Component\HttpFoundation\JsonResponse;
use JMS\Serializer\Serializer;

class JsonSerializerListener
{
	/** @var \Doctrine\Common\Annotations\Reader */
	private $annotationReader;
	/** @var  Serializer */
	private $serializer;
	/** @var  Serialize */
	private $serializeAnnotation;

	public function __construct(Reader $annotationReader, Serializer $serializer)
	{
		$this->annotationReader = $annotationReader;
		$this->serializer = $serializer;
	}

	public function onKernelController(FilterControllerEvent $event)
	{
		//die(var_dump($event));

		$controller = $event->getController();
		//die(var_dump($controller));

		list($object, $method) = $controller;
		//die(var_dump($object));
		//die(var_dump($method));

		// the controller could be a proxy, e.g. when using the JMSSecuriyExtraBundle or JMSDiExtraBundle
		$className = ClassUtils::getClass($object);
		//die(var_dump($className));

		$reflectionClass = new \ReflectionClass($className);
		$reflectionMethod = $reflectionClass->getMethod($method);
		//die(var_dump($reflectionMethod));

		$allAnnotations = $this->annotationReader->getMethodAnnotations($reflectionMethod);
		//die(var_dump($allAnnotations));

		$serializeAnnotations = array_filter($allAnnotations, function($annotation) {
			return $annotation instanceof Serialize;
		});

		$this->serializeAnnotation = reset($serializeAnnotations);
	}

	public function onKernelView(GetResponseForControllerResultEvent $event)
	{
		//die(var_dump($event));
		//die(var_dump($event->getControllerResult()));
		$data = $event->getControllerResult();

//		die(var_dump($this->serializeAnnotation));
//		die(var_dump($this->serializeAnnotation->getSerializationContext()));
		if ($this->serializeAnnotation) {

			$dataSerialized = $this->serializer->serialize(
				$data,
				$this->serializeAnnotation->getFormat(),
				$this->serializeAnnotation->getSerializationContext()
			);

			$response = new JsonResponse();
			$response->setContent($dataSerialized);
			$event->setResponse($response);
		}
	}
}