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Direktori : /opt/alt/php55/usr/share/pear/Symfony/Component/HttpKernel/EventListener/ |
Current File : //opt/alt/php55/usr/share/pear/Symfony/Component/HttpKernel/EventListener/ProfilerListener.php |
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\HttpKernel\EventListener; use Symfony\Component\HttpKernel\Event\GetResponseEvent; use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent; use Symfony\Component\HttpKernel\Event\FilterResponseEvent; use Symfony\Component\HttpKernel\Event\PostResponseEvent; use Symfony\Component\HttpKernel\KernelEvents; use Symfony\Component\HttpKernel\Profiler\Profiler; use Symfony\Component\HttpFoundation\RequestMatcherInterface; use Symfony\Component\HttpFoundation\RequestStack; use Symfony\Component\EventDispatcher\EventSubscriberInterface; /** * ProfilerListener collects data for the current request by listening to the onKernelResponse event. * * @author Fabien Potencier <fabien@symfony.com> */ class ProfilerListener implements EventSubscriberInterface { protected $profiler; protected $matcher; protected $onlyException; protected $onlyMasterRequests; protected $exception; protected $requests = array(); protected $profiles; protected $requestStack; protected $parents; /** * Constructor. * * @param Profiler $profiler A Profiler instance * @param RequestMatcherInterface $matcher A RequestMatcher instance * @param Boolean $onlyException true if the profiler only collects data when an exception occurs, false otherwise * @param Boolean $onlyMasterRequests true if the profiler only collects data when the request is a master request, false otherwise */ public function __construct(Profiler $profiler, RequestMatcherInterface $matcher = null, $onlyException = false, $onlyMasterRequests = false, RequestStack $requestStack = null) { $this->profiler = $profiler; $this->matcher = $matcher; $this->onlyException = (Boolean) $onlyException; $this->onlyMasterRequests = (Boolean) $onlyMasterRequests; $this->profiles = new \SplObjectStorage(); $this->parents = new \SplObjectStorage(); $this->requestStack = $requestStack; } /** * Handles the onKernelException event. * * @param GetResponseForExceptionEvent $event A GetResponseForExceptionEvent instance */ public function onKernelException(GetResponseForExceptionEvent $event) { if ($this->onlyMasterRequests && !$event->isMasterRequest()) { return; } $this->exception = $event->getException(); } /** * @deprecated Deprecated since version 2.4, to be removed in 3.0. */ public function onKernelRequest(GetResponseEvent $event) { if (null === $this->requestStack) { $this->requests[] = $event->getRequest(); } } /** * Handles the onKernelResponse event. * * @param FilterResponseEvent $event A FilterResponseEvent instance */ public function onKernelResponse(FilterResponseEvent $event) { $master = $event->isMasterRequest(); if ($this->onlyMasterRequests && !$master) { return; } if ($this->onlyException && null === $this->exception) { return; } $request = $event->getRequest(); $exception = $this->exception; $this->exception = null; if (null !== $this->matcher && !$this->matcher->matches($request)) { return; } if (!$profile = $this->profiler->collect($request, $event->getResponse(), $exception)) { return; } $this->profiles[$request] = $profile; if (null !== $this->requestStack) { $this->parents[$request] = $this->requestStack->getParentRequest(); } elseif (!$master) { // to be removed when requestStack is required array_pop($this->requests); $this->parents[$request] = end($this->requests); } } public function onKernelTerminate(PostResponseEvent $event) { // attach children to parents foreach ($this->profiles as $request) { // isset call should be removed when requestStack is required if (isset($this->parents[$request]) && null !== $parentRequest = $this->parents[$request]) { if (isset($this->profiles[$parentRequest])) { $this->profiles[$parentRequest]->addChild($this->profiles[$request]); } } } // save profiles foreach ($this->profiles as $request) { $this->profiler->saveProfile($this->profiles[$request]); } $this->profiles = new \SplObjectStorage(); $this->parents = new \SplObjectStorage(); $this->requests = array(); } public static function getSubscribedEvents() { return array( // kernel.request must be registered as early as possible to not break // when an exception is thrown in any other kernel.request listener KernelEvents::REQUEST => array('onKernelRequest', 1024), KernelEvents::RESPONSE => array('onKernelResponse', -100), KernelEvents::EXCEPTION => 'onKernelException', KernelEvents::TERMINATE => array('onKernelTerminate', -1024), ); } }