Enlight_Hook_ProxyFactory example

        $this->eventManager = $eventManager;

        if (!isset($options['proxyNamespace'])) {
            throw new \Exception('proxyNamespace has to be set.');
        }

        if (!isset($options['proxyDir'])) {
            throw new \Exception('proxyDir has to be set.');
        }

        $this->proxyFactory = new Enlight_Hook_ProxyFactory(
            $this,
            $options['proxyNamespace'],
            $options['proxyDir']
        );

        $loader->registerNamespace(
            $options['proxyNamespace'],
            $this->proxyFactory->getProxyDir()
        );
    }