vendor/Zend/ServiceManager/Di/DiInstanceManagerProxy.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\ServiceManager\Di;
  11
  12 use Zend\Di\InstanceManager as DiInstanceManager;
  13 use Zend\ServiceManager\ServiceLocatorInterface;
  14
  15 class DiInstanceManagerProxy extends DiInstanceManager
  16 {
  17     /**
  18      * @var DiInstanceManager
  19      */
  20     protected $diInstanceManager = null;
  21
  22     /**
  23      * @var ServiceLocatorInterface
  24      */
  25     protected $serviceLocator = null;
  26
  27     /**
  28      * Constructor
  29      *
  30      * @param DiInstanceManager $diInstanceManager
  31      * @param ServiceLocatorInterface $serviceLocator
  32      */
  33     public function __construct(DiInstanceManager $diInstanceManager, ServiceLocatorInterface $serviceLocator)
  34     {
  35         $this->diInstanceManager = $diInstanceManager;
  36         $this->serviceLocator = $serviceLocator;
  37
  38         // localize state
  39         $this->aliases = &$diInstanceManager->aliases;
  40         $this->sharedInstances = &$diInstanceManager->sharedInstances;
  41         $this->sharedInstancesWithParams = &$diInstanceManager->sharedInstancesWithParams;
  42         $this->configurations = &$diInstanceManager->configurations;
  43         $this->typePreferences = &$diInstanceManager->typePreferences;
  44     }
  45
  46     /**
  47      * Determine if we have a shared instance by class or alias
  48      *
  49      * @param $classOrAlias
  50      * @return bool
  51      */
  52     public function hasSharedInstance($classOrAlias)
  53     {
  54         return ($this->serviceLocator->has($classOrAlias) || $this->diInstanceManager->hasSharedInstance($classOrAlias));
  55     }
  56
  57     /**
  58      * Get shared instance
  59      *
  60      * @param $classOrAlias
  61      * @return mixed
  62      */
  63     public function getSharedInstance($classOrAlias)
  64     {
  65         if ($this->serviceLocator->has($classOrAlias)) {
  66             return $this->serviceLocator->get($classOrAlias);
  67         }
  68
  69         return $this->diInstanceManager->getSharedInstance($classOrAlias);
  70     }
  71 }