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PredisCachePool.php
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PredisCachePool.php
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<?php
/*
* This file is part of php-cache organization.
*
* (c) 2015 Aaron Scherer <aequasi@gmail.com>, Tobias Nyholm <tobias.nyholm@gmail.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace Cache\Adapter\Predis;
use Cache\Adapter\Common\AbstractCachePool;
use Cache\Adapter\Common\PhpCacheItem;
use Cache\Hierarchy\HierarchicalCachePoolTrait;
use Cache\Hierarchy\HierarchicalPoolInterface;
use Predis\ClientInterface as Client;
/**
* @author Tobias Nyholm <tobias.nyholm@gmail.com>
*/
class PredisCachePool extends AbstractCachePool implements HierarchicalPoolInterface
{
use HierarchicalCachePoolTrait;
/**
* @type Client
*/
protected $cache;
/**
* @param Client $cache
*/
public function __construct(Client $cache)
{
$this->cache = $cache;
}
/**
* {@inheritdoc}
*/
protected function fetchObjectFromCache($key)
{
if (false === $result = unserialize($this->cache->get($this->getHierarchyKey($key)) ?? '')) {
return [false, null, [], null];
}
return $result;
}
/**
* {@inheritdoc}
*/
protected function clearAllObjectsFromCache()
{
return 'OK' === $this->cache->flushdb()->getPayload();
}
/**
* {@inheritdoc}
*/
protected function clearOneObjectFromCache($key)
{
$path = null;
$keyString = $this->getHierarchyKey($key, $path);
if ($path) {
$this->cache->incr($path);
}
$this->clearHierarchyKeyCache();
return $this->cache->del($keyString) >= 0;
}
/**
* {@inheritdoc}
*/
protected function storeItemInCache(PhpCacheItem $item, $ttl)
{
if ($ttl < 0) {
return false;
}
$key = $this->getHierarchyKey($item->getKey());
$data = serialize([true, $item->get(), $item->getTags(), $item->getExpirationTimestamp()]);
if ($ttl === null || $ttl === 0) {
return 'OK' === $this->cache->set($key, $data)->getPayload();
}
return 'OK' === $this->cache->setex($key, $ttl, $data)->getPayload();
}
/**
* {@inheritdoc}
*/
protected function getDirectValue($key)
{
return $this->cache->get($key);
}
/**
* {@inheritdoc}
*/
protected function appendListItem($name, $value)
{
$this->cache->lpush($name, $value);
}
/**
* {@inheritdoc}
*/
protected function getList($name)
{
return $this->cache->lrange($name, 0, -1);
}
/**
* {@inheritdoc}
*/
protected function removeList($name)
{
return $this->cache->del($name);
}
/**
* {@inheritdoc}
*/
protected function removeListItem($name, $key)
{
return $this->cache->lrem($name, 0, $key);
}
}