Dynamically load ZF2 Module

Module.php

//Module.php 

namespace JhHub;

class Module implements
    ConsoleBannerProviderInterface,
    ConfigProviderInterface,
    AutoloaderProviderInterface
{

    /**
     * {@inheritDoc}
     */
    public function onBootstrap(MvcEvent $e)
    {
        $eventManager        = $e->getApplication()->getEventManager();
        $moduleRouteListener = new ModuleRouteListener();
        $moduleRouteListener->attach($eventManager);

        $sm = $e->getApplication()->getServiceManager();

        if($e->getRequest() instanceof HttpRequest) {
            // Add ACL information to the Navigation view helper
            $authorize = $sm->get('BjyAuthorizeServiceAuthorize');
            $acl = $authorize->getAcl();
            $role = $authorize->getIdentity();
            \Zend\View\Helper\Navigation::setDefaultAcl($acl);
            \Zend\View\Helper\Navigation::setDefaultRole($role);
        }

        /** @var \Zend\ModuleManager\ModuleManager **/
        $moduleManager = $sm->get('ModuleManager');

        /**
         * This would be replaced with some
         * the result of a Doctrine Query
         */
        $moduleManager->loadModule('JhFlexiTime');
    }
}