GuzzleExceptionListener.php

<?php

namespace Tristanbes\ElophantBundle\EventListener;

use Guzzle\Http\Exception\BadResponseException;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;

use Tristanbes\ElophantBundle\Manager\StatsManager;

/**
 * Class GuzzleExceptionListener
 */
class GuzzleExceptionListener
{
    private $statsManager;
    private $dispatcher;
    private $fail = false;

    /**
     * Constructor
     *
     * @param StatsManager $manager The stats Manager
     * @param 
     */
    public function __construct(StatsManager $manager, EventDispatcher $dispatcher)
    {
        $this->statsManager = $manager;
        $this->dispatcher   = $dispatcher;
    }

    public function onKernelException(GetResponseForExceptionEvent $event)
    {
        $exception = $event->getException();
        $statsManager = $this->statsManager;

        if ($exception instanceof BadResponseException) {
            
            $this->dispatcher->addListener('kernel.terminate', function (Event $event) use ($statsManager) {
                $statsManager->addFail();
            });
        }
    }
}

services.xml

<service id="tristanbes_elophant.guzzle_exception_eventlistener" class="%tristanbes_elophant.guzzle.exception.class%">
    <tag name="kernel.event_listener" event="kernel.exception" method="onKernelException" />
    <argument type="service" id="tristanbes_elophant.stats.manager" />
    <argument type="service" id="event_dispatcher" />
</service>