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

namespace Magento\Framework\App;

/**
* System cache model support id and tags prefix support.
*/
class Cache implements CacheInterface
{
/**
* @var string
*/
protected $_frontendIdentifier = \Magento\Framework\App\Cache\Frontend\Pool::DEFAULT_FRONTEND_ID;

/**
* @var \Magento\Framework\App\Cache\Frontend\Pool
*/
protected $_frontendPool;

/**
* Cache frontend API
*
* @var \Magento\Framework\Cache\FrontendInterface
*/
protected $_frontend;

/**
* @param Cache\Frontend\Pool $frontendPool
* @param string|null $cacheIdentifier
*/
public function __construct(\Magento\Framework\App\Cache\Frontend\Pool $frontendPool, $cacheIdentifier = null)
{
$this->_frontendPool = $frontendPool;
$this->_frontend = $frontendPool->get($cacheIdentifier ?? $this->_frontendIdentifier);
}

/**
* Get cache frontend API object
*
* @return \Magento\Framework\Cache\FrontendInterface
*/
public function getFrontend()
{
return $this->_frontend;
}

/**
* Load data from cache by id
*
* @param string $identifier
* @return string
*/
public function load($identifier)
{
return $this->_frontend->load($identifier);
}

/**
* Save data
*
* @param string $data
* @param string $identifier
* @param array $tags
* @param int $lifeTime
* @return bool
*/
public function save($data, $identifier, $tags = [], $lifeTime = null)
{
return $this->_frontend->save((string)$data, $identifier, $tags, $lifeTime);
}

/**
* Remove cached data by identifier
*
* @param string $identifier
* @return bool
*/
public function remove($identifier)
{
return $this->_frontend->remove($identifier);
}

/**
* Clean cached data by specific tag
*
* @param array $tags
* @return bool
*/
public function clean($tags = [])
{
if ($tags) {
$result = $this->_frontend->clean(\Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG, (array)$tags);
} else {
/** @deprecated special case of cleaning by empty tags is deprecated after 2.0.0.0-dev42 */
$result = false;
/** @var $cacheFrontend \Magento\Framework\Cache\FrontendInterface */
foreach ($this->_frontendPool as $cacheFrontend) {
if ($cacheFrontend->clean()) {
$result = true;
}
}
}
return $result;
}
}