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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\Redis; use Phpfastcache\Core\Pool\{ DriverBaseTrait, ExtendedCacheItemPoolInterface }; use Phpfastcache\Entities\DriverStatistic; use Phpfastcache\Exceptions\{ PhpfastcacheInvalidArgumentException, PhpfastcacheLogicException }; use Psr\Cache\CacheItemInterface; use Redis as RedisClient; /** * Class Driver * @package phpFastCache\Drivers * @property Config $config Config object * @method Config getConfig() Return the config object */ class Driver implements ExtendedCacheItemPoolInterface { use DriverBaseTrait; /** * @return bool */ public function driverCheck(): bool { return \extension_loaded('Redis'); } /** * @return bool * @throws PhpfastcacheLogicException */ protected function driverConnect(): bool { if ($this->instance instanceof RedisClient) { throw new PhpfastcacheLogicException('Already connected to Redis server'); } /** * In case of an user-provided * Redis client just return here */ if ($this->getConfig()->getRedisClient() instanceof RedisClient) { /** * Unlike Predis, we can't test if we're are connected * or not, so let's just assume that we are */ $this->instance = $this->getConfig()->getRedisClient(); return true; } $this->instance = $this->instance ?: new RedisClient(); /** * If path is provided we consider it as an UNIX Socket */ if ($this->getConfig()->getPath()) { $isConnected = $this->instance->connect($this->getConfig()->getPath()); } else { $isConnected = $this->instance->connect($this->getConfig()->getHost(), $this->getConfig()->getPort(), $this->getConfig()->getTimeout()); } if (!$isConnected && $this->getConfig()->getPath()) { return false; } if($this->getConfig()->getOptPrefix()){ $this->instance->setOption(RedisClient::OPT_PREFIX, $this->getConfig()->getOptPrefix()); } if ($this->getConfig()->getPassword() && !$this->instance->auth($this->getConfig()->getPassword())) { return false; } if ($this->getConfig()->getDatabase() !== null) { $this->instance->select($this->getConfig()->getDatabase()); } return true; } /** * @param \Psr\Cache\CacheItemInterface $item * @return null|array */ protected function driverRead(CacheItemInterface $item) { $val = $this->instance->get($item->getKey()); 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) { $ttl = $item->getExpirationDate()->getTimestamp() - \time(); /** * @see https://redis.io/commands/setex * @see https://redis.io/commands/expire */ if ($ttl <= 0) { return $this->instance->expire($item->getKey(), 0); } return $this->instance->setex($item->getKey(), $ttl, $this->encode($this->driverPreWrap($item))); } 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->getKey()); } throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected'); } /** * @return bool */ protected function driverClear(): bool { return $this->instance->flushDB(); } /******************** * * PSR-6 Extended Methods * *******************/ /** * @return DriverStatistic */ public function getStats(): DriverStatistic { // used_memory $info = $this->instance->info(); $date = (new \DateTime())->setTimestamp(\time() - $info['uptime_in_seconds']); return (new DriverStatistic()) ->setData(\implode(', ', \array_keys($this->itemInstances))) ->setRawData($info) ->setSize((int)$info['used_memory']) ->setInfo(\sprintf("The Redis daemon v%s is up since %s.\n For more information see RawData. \n Driver size includes the memory allocation size.", $info['redis_version'], $date->format(\DATE_RFC2822))); } }