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<?php |
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/** |
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* |
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* This file is part of phpFastCache. |
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* |
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* @license MIT License (MIT) |
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* |
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* For full copyright and license information, please see the docs/CREDITS.txt file. |
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* |
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* @author Khoa Bui (khoaofgod) <[email protected]> http://www.phpfastcache.com |
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* @author Georges.L (Geolim4) <[email protected]> |
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* |
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*/ |
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namespace phpFastCache\Drivers\Predis; |
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use phpFastCache\Core\Pool\DriverBaseTrait; |
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use phpFastCache\Core\Pool\ExtendedCacheItemPoolInterface; |
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use phpFastCache\Entities\DriverStatistic; |
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use phpFastCache\Exceptions\phpFastCacheDriverCheckException; |
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use phpFastCache\Exceptions\phpFastCacheDriverException; |
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use phpFastCache\Exceptions\phpFastCacheInvalidArgumentException; |
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use Predis\Client as PredisClient; |
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use Psr\Cache\CacheItemInterface; |
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/** |
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* Class Driver |
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* @package phpFastCache\Drivers |
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* @property PredisClient $instance Instance of driver service |
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*/ |
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class Driver implements ExtendedCacheItemPoolInterface |
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{ |
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use DriverBaseTrait; |
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/** |
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* Driver constructor. |
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* @param array $config |
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* @throws phpFastCacheDriverException |
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*/ |
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View Code Duplication |
public function __construct(array $config = []) |
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{ |
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$this->setup($config); |
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if (!$this->driverCheck()) { |
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throw new phpFastCacheDriverCheckException(sprintf(self::DRIVER_CHECK_FAILURE, $this->getDriverName())); |
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} else { |
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$this->driverConnect(); |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function driverCheck() |
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{ |
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if (extension_loaded('Redis')) { |
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trigger_error('The native Redis extension is installed, you should use Redis instead of Predis to increase performances', E_USER_NOTICE); |
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} |
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return class_exists('Predis\Client'); |
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} |
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/** |
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* @param \Psr\Cache\CacheItemInterface $item |
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* @return mixed |
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* @throws phpFastCacheInvalidArgumentException |
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*/ |
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View Code Duplication |
protected function driverWrite(CacheItemInterface $item) |
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{ |
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/** |
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* Check for Cross-Driver type confusion |
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*/ |
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if ($item instanceof Item) { |
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$ttl = $item->getExpirationDate()->getTimestamp() - time(); |
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return $this->instance->setex($item->getKey(), $ttl, $this->encode($this->driverPreWrap($item))); |
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} else { |
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throw new phpFastCacheInvalidArgumentException('Cross-Driver type confusion detected'); |
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} |
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} |
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/** |
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* @param \Psr\Cache\CacheItemInterface $item |
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* @return mixed |
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*/ |
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View Code Duplication |
protected function driverRead(CacheItemInterface $item) |
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{ |
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$val = $this->instance->get($item->getKey()); |
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if ($val == false) { |
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return null; |
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} else { |
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return $this->decode($val); |
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} |
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} |
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/** |
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* @param \Psr\Cache\CacheItemInterface $item |
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* @return bool |
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* @throws phpFastCacheInvalidArgumentException |
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*/ |
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protected function driverDelete(CacheItemInterface $item) |
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{ |
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/** |
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* Check for Cross-Driver type confusion |
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*/ |
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if ($item instanceof Item) { |
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return $this->instance->del($item->getKey()); |
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} else { |
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throw new phpFastCacheInvalidArgumentException('Cross-Driver type confusion detected'); |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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protected function driverClear() |
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{ |
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return $this->instance->flushdb(); |
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} |
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/** |
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* @return bool |
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*/ |
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protected function driverConnect() |
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{ |
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$config = isset($this->config[ 'predis' ]) ? $this->config[ 'predis' ] : []; |
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$this->instance = new PredisClient(array_merge([ |
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'host' => '127.0.0.1', |
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'port' => 6379, |
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'password' => null, |
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'database' => null, |
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], $config)); |
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return true; |
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} |
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/******************** |
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* |
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* PSR-6 Extended Methods |
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* |
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*******************/ |
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/** |
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* @return string |
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*/ |
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public function getHelp() |
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{ |
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return <<<HELP |
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<p> |
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To install the Predis library via Composer: |
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<code>composer require "predis/predis" "~1.1.0"</code> |
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</p> |
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HELP; |
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} |
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/** |
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* @return DriverStatistic |
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*/ |
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View Code Duplication |
public function getStats() |
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{ |
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$info = $this->instance->info(); |
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$size = (isset($info['Memory']['used_memory']) ? $info['Memory']['used_memory'] : 0); |
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$version = (isset($info['Server']['redis_version']) ? $info['Server']['redis_version'] : 0); |
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$date = (isset($info['Server'][ 'uptime_in_seconds' ]) ? (new \DateTime())->setTimestamp(time() - $info['Server'][ 'uptime_in_seconds' ]) : 'unknown date'); |
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return (new DriverStatistic()) |
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->setData(implode(', ', array_keys($this->itemInstances))) |
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->setRawData($info) |
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->setSize($size) |
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->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.", $version, $date->format(DATE_RFC2822))); |
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} |
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} |
PHPSocialNetwork /
phpfastcache
