lib/Phpfastcache/Drivers/Devrandom/Driver.php
<?php
/**
*
* This file is part of Phpfastcache.
*
* @license MIT License (MIT)
*
* For full copyright and license information, please see the docs/CREDITS.txt and LICENCE files.
*
* @author Georges.L (Geolim4) <contact@geolim4.com>
* @author Contributors https://github.com/PHPSocialNetwork/phpfastcache/graphs/contributors
*/
declare(strict_types=1);
namespace Phpfastcache\Drivers\Devrandom;
use DateInterval;
use DateTime;
use Phpfastcache\Core\Item\ExtendedCacheItemInterface;
use Phpfastcache\Core\Pool\ExtendedCacheItemPoolInterface;
use Phpfastcache\Core\Pool\TaggableCacheItemPoolTrait;
use Phpfastcache\Entities\DriverStatistic;
use Phpfastcache\Exceptions\PhpfastcacheInvalidArgumentException;
use Psr\Cache\CacheItemInterface;
/**
* @method Config getConfig()
*/
class Driver implements ExtendedCacheItemPoolInterface
{
use TaggableCacheItemPoolTrait;
/**
* @return bool
*/
public function driverCheck(): bool
{
return true;
}
/**
* @return DriverStatistic
*/
public function getStats(): DriverStatistic
{
$stat = new DriverStatistic();
$stat->setInfo('[Devrandom] A void info string')
->setSize(0)
->setData(implode(', ', array_keys($this->itemInstances)))
->setRawData(false);
return $stat;
}
/**
* @param ExtendedCacheItemInterface $item
* @return bool
* @throws PhpfastcacheInvalidArgumentException
*/
protected function driverWrite(ExtendedCacheItemInterface $item): bool
{
return true;
}
/**
* @param ExtendedCacheItemInterface $item
* @return ?array<string, mixed>
* @throws \Exception
*/
protected function driverRead(CacheItemInterface $item): ?array
{
$chanceOfRetrieval = $this->getConfig()->getChanceOfRetrieval();
$ttl = $this->getConfig()->getDefaultTtl();
if (\random_int(0, 100) < $chanceOfRetrieval) {
return [
self::DRIVER_DATA_WRAPPER_INDEX => \bin2hex(\random_bytes($this->getConfig()->getDataLength())),
self::DRIVER_TAGS_WRAPPER_INDEX => [],
self::DRIVER_EDATE_WRAPPER_INDEX => (new DateTime())->add(new DateInterval("PT{$ttl}S")),
];
}
return null;
}
/**
* @param string $key
* @param string $encodedKey
* @return bool
*/
protected function driverDelete(string $key, string $encodedKey): bool
{
return true;
}
/**
* @return bool
*/
protected function driverClear(): bool
{
return true;
}
/**
* @return bool
*/
protected function driverConnect(): bool
{
return true;
}
}