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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Indexer;
use Magento\Framework\Indexer\Handler\DefaultHandler;
use Magento\Framework\ObjectManagerInterface;
/**
* @api Instantiate save handler when implementing custom Indexer\Action
* @since 100.0.2
*/
class HandlerPool
{
/**
* @var ObjectManagerInterface
*/
protected $objectManager;
/**
* @var HandlerInterface
*/
protected $defaultHandler;
/**
* @param ObjectManagerInterface $objectManager
* @param DefaultHandler $defaultHandler
*/
public function __construct(
ObjectManagerInterface $objectManager,
DefaultHandler $defaultHandler
) {
$this->defaultHandler = $defaultHandler;
$this->objectManager = $objectManager;
}
/**
* Get handler class instance
*
* @param string $handlerClass
* @throws \InvalidArgumentException
* @return HandlerInterface
*/
public function get($handlerClass = null)
{
if ($handlerClass === null) {
return $this->defaultHandler;
}
$handler = $this->objectManager->get($handlerClass);
if (!$handler instanceof HandlerInterface) {
throw new \InvalidArgumentException(
$handlerClass . ' doesn\'t implement \Magento\Framework\Indexer\HandlerInterface'
);
}
return $handler;
}
}