/usr/share/php/Symfony/Component/Cache/Adapter/ProxyAdapter.php is in php-symfony-cache 3.4.6+dfsg-1.
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/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Cache\Adapter;
use Psr\Cache\CacheItemInterface;
use Psr\Cache\CacheItemPoolInterface;
use Symfony\Component\Cache\CacheItem;
use Symfony\Component\Cache\PruneableInterface;
use Symfony\Component\Cache\ResettableInterface;
use Symfony\Component\Cache\Traits\ProxyTrait;
/**
* @author Nicolas Grekas <p@tchwork.com>
*/
class ProxyAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
{
use ProxyTrait;
private $namespace;
private $namespaceLen;
private $createCacheItem;
private $poolHash;
/**
* @param CacheItemPoolInterface $pool
* @param string $namespace
* @param int $defaultLifetime
*/
public function __construct(CacheItemPoolInterface $pool, $namespace = '', $defaultLifetime = 0)
{
$this->pool = $pool;
$this->poolHash = $poolHash = spl_object_hash($pool);
$this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace);
$this->namespaceLen = strlen($namespace);
$this->createCacheItem = \Closure::bind(
function ($key, $innerItem) use ($defaultLifetime, $poolHash) {
$item = new CacheItem();
$item->key = $key;
$item->value = $innerItem->get();
$item->isHit = $innerItem->isHit();
$item->defaultLifetime = $defaultLifetime;
$item->innerItem = $innerItem;
$item->poolHash = $poolHash;
$innerItem->set(null);
return $item;
},
null,
CacheItem::class
);
}
/**
* {@inheritdoc}
*/
public function getItem($key)
{
$f = $this->createCacheItem;
$item = $this->pool->getItem($this->getId($key));
return $f($key, $item);
}
/**
* {@inheritdoc}
*/
public function getItems(array $keys = array())
{
if ($this->namespaceLen) {
foreach ($keys as $i => $key) {
$keys[$i] = $this->getId($key);
}
}
return $this->generateItems($this->pool->getItems($keys));
}
/**
* {@inheritdoc}
*/
public function hasItem($key)
{
return $this->pool->hasItem($this->getId($key));
}
/**
* {@inheritdoc}
*/
public function clear()
{
return $this->pool->clear();
}
/**
* {@inheritdoc}
*/
public function deleteItem($key)
{
return $this->pool->deleteItem($this->getId($key));
}
/**
* {@inheritdoc}
*/
public function deleteItems(array $keys)
{
if ($this->namespaceLen) {
foreach ($keys as $i => $key) {
$keys[$i] = $this->getId($key);
}
}
return $this->pool->deleteItems($keys);
}
/**
* {@inheritdoc}
*/
public function save(CacheItemInterface $item)
{
return $this->doSave($item, __FUNCTION__);
}
/**
* {@inheritdoc}
*/
public function saveDeferred(CacheItemInterface $item)
{
return $this->doSave($item, __FUNCTION__);
}
/**
* {@inheritdoc}
*/
public function commit()
{
return $this->pool->commit();
}
private function doSave(CacheItemInterface $item, $method)
{
if (!$item instanceof CacheItem) {
return false;
}
$item = (array) $item;
$expiry = $item["\0*\0expiry"];
if (null === $expiry && 0 < $item["\0*\0defaultLifetime"]) {
$expiry = time() + $item["\0*\0defaultLifetime"];
}
$innerItem = $item["\0*\0poolHash"] === $this->poolHash ? $item["\0*\0innerItem"] : $this->pool->getItem($this->namespace.$item["\0*\0key"]);
$innerItem->set($item["\0*\0value"]);
$innerItem->expiresAt(null !== $expiry ? \DateTime::createFromFormat('U', $expiry) : null);
return $this->pool->$method($innerItem);
}
private function generateItems($items)
{
$f = $this->createCacheItem;
foreach ($items as $key => $item) {
if ($this->namespaceLen) {
$key = substr($key, $this->namespaceLen);
}
yield $key => $f($key, $item);
}
}
private function getId($key)
{
CacheItem::validateKey($key);
return $this->namespace.$key;
}
}
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