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mnt / ceph / services / websiteos / phpmyadmin / phpMyAdmin-4.7.7-all-languages / vendor / symfony / cache / Adapter /

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📄 AbstractAdapter.php(9.35 KB)
📄 AdapterInterface.php(789 B)
📄 ApcuAdapter.php(747 B)
📄 ArrayAdapter.php(4.11 KB)
📄 ChainAdapter.php(6.34 KB)
📄 DoctrineAdapter.php(827 B)
📄 FilesystemAdapter.php(822 B)
📄 MemcachedAdapter.php(1.15 KB)
📄 NullAdapter.php(2.05 KB)
📄 PdoAdapter.php(2.17 KB)
📄 PhpArrayAdapter.php(8.82 KB)
📄 PhpFilesAdapter.php(1.18 KB)
📄 ProxyAdapter.php(4.59 KB)
📄 RedisAdapter.php(873 B)
📄 SimpleCacheAdapter.php(1.72 KB)
📄 TagAwareAdapter.php(8.69 KB)
📄 TagAwareAdapterInterface.php(785 B)
📄 TraceableAdapter.php(5.16 KB)
📄 TraceableTagAwareAdapter.php(849 B)

Editing: ChainAdapter.php

<?php

/*
 * 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\Exception\InvalidArgumentException;
use Symfony\Component\Cache\PruneableInterface;
use Symfony\Component\Cache\ResettableInterface;

/**
 * Chains several adapters together.
 *
 * Cached items are fetched from the first adapter having them in its data store.
 * They are saved and deleted in all adapters at once.
 *
 * @author Kévin Dunglas <dunglas@gmail.com>
 */
class ChainAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
{
    private $adapters = array();
    private $adapterCount;
    private $saveUp;

/**
     * @param CacheItemPoolInterface[] $adapters    The ordered list of adapters used to fetch cached items
     * @param int                      $maxLifetime The max lifetime of items propagated from lower adapters to upper ones
     */
    public function __construct(array $adapters, $maxLifetime = 0)
    {
        if (!$adapters) {
            throw new InvalidArgumentException('At least one adapter must be specified.');
        }

foreach ($adapters as $adapter) {
            if (!$adapter instanceof CacheItemPoolInterface) {
                throw new InvalidArgumentException(sprintf('The class "%s" does not implement the "%s" interface.', get_class($adapter), CacheItemPoolInterface::class));
            }

if ($adapter instanceof AdapterInterface) {
                $this->adapters[] = $adapter;
            } else {
                $this->adapters[] = new ProxyAdapter($adapter);
            }
        }
        $this->adapterCount = count($this->adapters);

$this->saveUp = \Closure::bind(
            function ($adapter, $item) use ($maxLifetime) {
                $origDefaultLifetime = $item->defaultLifetime;

if (0 < $maxLifetime && ($origDefaultLifetime <= 0 || $maxLifetime < $origDefaultLifetime)) {
                    $item->defaultLifetime = $maxLifetime;
                }

$adapter->save($item);
                $item->defaultLifetime = $origDefaultLifetime;
            },
            null,
            CacheItem::class
        );
    }

/**
     * {@inheritdoc}
     */
    public function getItem($key)
    {
        $saveUp = $this->saveUp;

foreach ($this->adapters as $i => $adapter) {
            $item = $adapter->getItem($key);

if ($item->isHit()) {
                while (0 <= --$i) {
                    $saveUp($this->adapters[$i], $item);
                }

return $item;
            }
        }

return $item;
    }

/**
     * {@inheritdoc}
     */
    public function getItems(array $keys = array())
    {
        return $this->generateItems($this->adapters[0]->getItems($keys), 0);
    }

private function generateItems($items, $adapterIndex)
    {
        $missing = array();
        $nextAdapterIndex = $adapterIndex + 1;
        $nextAdapter = isset($this->adapters[$nextAdapterIndex]) ? $this->adapters[$nextAdapterIndex] : null;

foreach ($items as $k => $item) {
            if (!$nextAdapter || $item->isHit()) {
                yield $k => $item;
            } else {
                $missing[] = $k;
            }
        }

if ($missing) {
            $saveUp = $this->saveUp;
            $adapter = $this->adapters[$adapterIndex];
            $items = $this->generateItems($nextAdapter->getItems($missing), $nextAdapterIndex);

foreach ($items as $k => $item) {
                if ($item->isHit()) {
                    $saveUp($adapter, $item);
                }

yield $k => $item;
            }
        }
    }

/**
     * {@inheritdoc}
     */
    public function hasItem($key)
    {
        foreach ($this->adapters as $adapter) {
            if ($adapter->hasItem($key)) {
                return true;
            }
        }

return false;
    }

/**
     * {@inheritdoc}
     */
    public function clear()
    {
        $cleared = true;
        $i = $this->adapterCount;

while ($i--) {
            $cleared = $this->adapters[$i]->clear() && $cleared;
        }

return $cleared;
    }

/**
     * {@inheritdoc}
     */
    public function deleteItem($key)
    {
        $deleted = true;
        $i = $this->adapterCount;

while ($i--) {
            $deleted = $this->adapters[$i]->deleteItem($key) && $deleted;
        }

return $deleted;
    }

/**
     * {@inheritdoc}
     */
    public function deleteItems(array $keys)
    {
        $deleted = true;
        $i = $this->adapterCount;

while ($i--) {
            $deleted = $this->adapters[$i]->deleteItems($keys) && $deleted;
        }

return $deleted;
    }

/**
     * {@inheritdoc}
     */
    public function save(CacheItemInterface $item)
    {
        $saved = true;
        $i = $this->adapterCount;

while ($i--) {
            $saved = $this->adapters[$i]->save($item) && $saved;
        }

return $saved;
    }

/**
     * {@inheritdoc}
     */
    public function saveDeferred(CacheItemInterface $item)
    {
        $saved = true;
        $i = $this->adapterCount;

while ($i--) {
            $saved = $this->adapters[$i]->saveDeferred($item) && $saved;
        }

return $saved;
    }

/**
     * {@inheritdoc}
     */
    public function commit()
    {
        $committed = true;
        $i = $this->adapterCount;

while ($i--) {
            $committed = $this->adapters[$i]->commit() && $committed;
        }

return $committed;
    }

/**
     * {@inheritdoc}
     */
    public function prune()
    {
        $pruned = true;

foreach ($this->adapters as $adapter) {
            if ($adapter instanceof PruneableInterface) {
                $pruned = $adapter->prune() && $pruned;
            }
        }

return $pruned;
    }

/**
     * {@inheritdoc}
     */
    public function reset()
    {
        foreach ($this->adapters as $adapter) {
            if ($adapter instanceof ResettableInterface) {
                $adapter->reset();
            }
        }
    }
}

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