vendor/Zend/Mvc/Service/EventManagerFactory.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Mvc\Service;
  11
  12 use Interop\Container\ContainerInterface;
  13 use ReflectionClass;
  14 use Zend\EventManager\EventManager;
  15 use Zend\ServiceManager\FactoryInterface;
  16 use Zend\ServiceManager\ServiceLocatorInterface;
  17
  18 class EventManagerFactory implements FactoryInterface
  19 {
  20     /**
  21      * Create an EventManager instance
  22      *
  23      * Creates a new EventManager instance, seeding it with a shared instance
  24      * of SharedEventManager.
  25      *
  26      * @param  ContainerInterface $container
  27      * @param  string $name
  28      * @param  null|array $options
  29      * @return EventManager
  30      */
  31     public function __invoke(ContainerInterface $container, $name, array $options = null)
  32     {
  33         if ($this->acceptsSharedManagerToConstructor()) {
  34             // zend-eventmanager v3
  35             return new EventManager(
  36                 $container->has('SharedEventManager') ? $container->get('SharedEventManager') : null
  37             );
  38         }
  39
  40         // zend-eventmanager v2
  41         $events = new EventManager();
  42
  43         if ($container->has('SharedEventManager')) {
  44             $events->setSharedManager($container->get('SharedEventManager'));
  45         }
  46
  47         return $events;
  48     }
  49
  50     /**
  51      * Create and return EventManager instance
  52      *
  53      * For use with zend-servicemanager v2; proxies to __invoke().
  54      *
  55      * @param ServiceLocatorInterface $container
  56      * @return EventManager
  57      */
  58     public function createService(ServiceLocatorInterface $container)
  59     {
  60         return $this($container, EventManager::class);
  61     }
  62
  63     /**
  64      * Does the EventManager accept the shared manager to the constructor?
  65      *
  66      * In zend-eventmanager v3, the EventManager accepts the shared manager
  67      * instance to the constructor *only*, while in v2, it must be injected
  68      * via the setSharedManager() method.
  69      *
  70      * @return bool
  71      */
  72     private function acceptsSharedManagerToConstructor()
  73     {
  74         $r = new ReflectionClass(EventManager::class);
  75         return ! $r->hasMethod('setSharedManager');
  76     }
  77 }