Controller Example of Monitor your Symfony2 application via Stats.d and Graphite (2/2)

StatsListener.php

<?php

namespace SeekTeam\PremiumBundle\Event\Listener;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\EventDispatcher\GenericEvent;

use SeekTeam\PremiumBundle\Event\Events;

class StatsListener implements EventSubscriberInterface
{
    protected $statsdFactory;
    protected $statsdClient;

    public function __construct($statsdFactory, $statsdClient)
    {
        $this->statsdFactory = $statsdFactory;
        $this->statsdClient  = $statsdClient;
    }

    public static function getSubscribedEvents()
    {
        return array(
            Events::PREMIUM_SUCCESS => 'onPremiumSuccess',
            Events::PREMIUM_START   => 'onPremiumStart',
            Events::PREMIUM_CANCEL  => 'onPremiumCancel',
            Events::PREMIUM_ERROR   => 'onPremiumError',
        );
    }

    public function onPremiumSuccess(GenericEvent $event)
    {
        $data = $this->statsdFactory->createStatsDataIncrement('premium.success');
        $this->statsdClient->send($data);
    }

    public function onPremiumCancel(GenericEvent $event)
    {
        $data = $this->statsdFactory->createStatsDataIncrement('premium.cancel');
        $this->statsdClient->send($data);
    }

    public function onPremiumStart(GenericEvent $event)
    {
        $data = $this->statsdFactory->createStatsDataIncrement('premium.start');
        $this->statsdClient->send($data);
    }

    public function onPremiumError(GenericEvent $event)
    {
        $data = $this->statsdFactory->createStatsDataIncrement('premium.error');
        $this->statsdClient->send($data);
    }
}