<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\App;

use Magento\Framework\ObjectManager\FactoryInterface;

/**
* Direct usage of this class is strictly discouraged.
*
* Wrapper around object manager with workarounds to access it in client code.
* Provides static access to objectManager, that is required for unserialization of objects.
*
* @api
* @SuppressWarnings(PHPMD.CouplingBetweenObjects)
* @since 100.0.2
*/
class ObjectManager extends \Magento\Framework\ObjectManager\ObjectManager
{
/**
* @var ObjectManager
*/
protected static $_instance;

/**
* Retrieve object manager
*
* @return ObjectManager
* @throws \RuntimeException
*/
public static function getInstance()
{
if (!self::$_instance instanceof \Magento\Framework\ObjectManagerInterface) {
throw new \RuntimeException('ObjectManager isn\'t initialized');
}
return self::$_instance;
}

/**
* Set object manager instance
*
* @param \Magento\Framework\ObjectManagerInterface $objectManager
* @throws \LogicException
* @return void
*/
public static function setInstance(\Magento\Framework\ObjectManagerInterface $objectManager)
{
self::$_instance = $objectManager;
}

/**
* @param FactoryInterface $factory
* @param \Magento\Framework\ObjectManager\ConfigInterface $config
* @param array $sharedInstances
*/
public function __construct(
FactoryInterface $factory,
\Magento\Framework\ObjectManager\ConfigInterface $config,
array &$sharedInstances = []
) {
parent::__construct($factory, $config, $sharedInstances);
self::$_instance = $this;
}
}