Cache.php

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<?php
namespace Magento\Framework\Acl\Data;

class Cache implements CacheInterface
{
    const ACL_DATA_CACHE_TAG = 'acl_cache';

    private $cache;

    private $aclBuilder;

    private $cacheTag;

    public function __construct(
        \Magento\Framework\Config\CacheInterface $cache,
        \Magento\Framework\Acl\Builder $aclBuilder,
        $cacheTag = self::ACL_DATA_CACHE_TAG
    ) {
        $this->cache = $cache;
        $this->aclBuilder = $aclBuilder;
        $this->cacheTag = $cacheTag;
    }

    public function test($identifier)
    {
        return $this->cache->test($identifier);
    }

    public function load($identifier)
    {
        return $this->cache->load($identifier);
    }

    public function save($data, $identifier, array $tags = [], $lifeTime = null)
    {
        return $this->cache->save($data, $identifier, array_merge($tags, [$this->cacheTag]), $lifeTime);
    }

    public function remove($identifier)
    {
        return $this->cache->remove($identifier);
    }

    public function clean($mode = \Zend_Cache::CLEANING_MODE_MATCHING_TAG, array $tags = [])
    {
        $this->aclBuilder->resetRuntimeAcl();
        return $this->cache->clean($mode, array_merge($tags, [$this->cacheTag]));
    }

    public function getBackend()
    {
        return $this->cache->getBackend();
    }

    public function getLowLevelFrontend()
    {
        return $this->cache->getLowLevelFrontend();
    }
}