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Drivers
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File: 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 file. * * @author Khoa Bui (khoaofgod) <khoaofgod@gmail.com> https://www.phpfastcache.com * @author Georges.L (Geolim4) <contact@geolim4.com> * */ declare(strict_types=1); namespace Phpfastcache\Drivers\Ssdb; use Phpfastcache\Core\Pool\{ DriverBaseTrait, ExtendedCacheItemPoolInterface }; use Phpfastcache\Entities\DriverStatistic; use Phpfastcache\Exceptions\{ PhpfastcacheDriverCheckException, PhpfastcacheDriverException, PhpfastcacheInvalidArgumentException }; use phpssdb\Core\{ SimpleSSDB, SSDBException }; use Psr\Cache\CacheItemInterface; /** * Class Driver * @package phpFastCache\Drivers * @property SimpleSSDB $instance Instance of driver service * @property Config $config Config object * @method Config getConfig() Return the config object */ class Driver implements ExtendedCacheItemPoolInterface { use DriverBaseTrait; /** * @return bool */ public function driverCheck(): bool { static $driverCheck; if ($driverCheck === null) { return ($driverCheck = \class_exists('phpssdb\Core\SSDB')); } return $driverCheck; } /** * @return bool * @throws PhpfastcacheDriverException */ protected function driverConnect(): bool { try { $clientConfig = $this->getConfig(); $this->instance = new SimpleSSDB($clientConfig->getHost(), $clientConfig->getPort(), $clientConfig->getTimeout()); if (!empty($clientConfig->getPassword())) { $this->instance->auth($clientConfig->getPassword()); } if (!$this->instance) { return false; } return true; } catch (SSDBException $e) { throw new PhpfastcacheDriverCheckException('Ssdb failed to connect with error: ' . $e->getMessage(), 0, $e); } } /** * @param \Psr\Cache\CacheItemInterface $item * @return null|array */ protected function driverRead(CacheItemInterface $item) { $val = $this->instance->get($item->getEncodedKey()); if ($val == false) { return null; } return $this->decode($val); } /** * @param \Psr\Cache\CacheItemInterface $item * @return mixed * @throws PhpfastcacheInvalidArgumentException */ protected function driverWrite(CacheItemInterface $item): bool { /** * Check for Cross-Driver type confusion */ if ($item instanceof Item) { return (bool) $this->instance->setx($item->getEncodedKey(), $this->encode($this->driverPreWrap($item)), $item->getTtl()); } throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected'); } /** * @param \Psr\Cache\CacheItemInterface $item * @return bool * @throws PhpfastcacheInvalidArgumentException */ protected function driverDelete(CacheItemInterface $item): bool { /** * Check for Cross-Driver type confusion */ if ($item instanceof Item) { return (bool) $this->instance->del($item->getEncodedKey()); } throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected'); } /** * @return bool */ protected function driverClear(): bool { return (bool) $this->instance->flushdb('kv'); } /******************** * * PSR-6 Extended Methods * *******************/ /** * @return DriverStatistic */ public function getStats(): DriverStatistic { $stat = new DriverStatistic(); $info = $this->instance->info(); /** * Data returned by Ssdb are very poorly formatted * using hardcoded offset of pair key-value :-( */ $stat->setInfo(\sprintf("Ssdb-server v%s with a total of %s call(s).\n For more information see RawData.", $info[2], $info[6])) ->setRawData($info) ->setData(\implode(', ', \array_keys($this->itemInstances))) ->setSize($this->instance->dbsize()); return $stat; } }