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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);
namespace Magento\Indexer\Model\Indexer;
use Magento\Framework\App\CacheInterface;
use Magento\Framework\Event\Manager as EventManager;
use Magento\Framework\Indexer\CacheContext;
/**
* Deferred cache cleaner for indexers
*/
class DeferredCacheCleaner
{
/**
* @var EventManager
*/
private $eventManager;
/**
* @var CacheInterface
*/
private $appCache;
/**
* @var DeferredCacheContext
*/
private $deferredCacheContext;
/**
* @var CacheContext
*/
private $cacheContext;
/**
* @param EventManager $eventManager
* @param CacheInterface $appCache
* @param DeferredCacheContext $deferredCacheContext
* @param CacheContext $cacheContext
*/
public function __construct(
EventManager $eventManager,
CacheInterface $appCache,
DeferredCacheContext $deferredCacheContext,
CacheContext $cacheContext
) {
$this->eventManager = $eventManager;
$this->deferredCacheContext = $deferredCacheContext;
$this->appCache = $appCache;
$this->cacheContext = $cacheContext;
}
/**
* Defer cache cleaning until flush() is called
*
* @see flush()
*/
public function start(): void
{
$this->deferredCacheContext->start();
}
/**
* Flush cache
*/
public function flush(): void
{
$this->deferredCacheContext->commit();
$this->eventManager->dispatch('clean_cache_by_tags', ['object' => $this->cacheContext]);
$identities = $this->cacheContext->getIdentities();
if (!empty($identities)) {
$this->appCache->clean($identities);
$this->cacheContext->flush();
}
}
}