146 lines
3.7 KiB
PHP
146 lines
3.7 KiB
PHP
<?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) <khoaofgod@gmail.com> http://www.phpfastcache.com
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* @author Georges.L (Geolim4) <contact@geolim4.com>
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*
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*/
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namespace phpFastCache\Drivers\Apcu;
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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 Psr\Cache\CacheItemInterface;
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/**
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* Class Driver
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* @package phpFastCache\Drivers
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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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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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}
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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('apcu') && ini_get('apc.enabled')) {
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return true;
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} else {
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return false;
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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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* @throws phpFastCacheInvalidArgumentException
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*/
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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 = $item->getExpirationDate()->getTimestamp() - time();
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return apcu_store($item->getKey(), $this->driverPreWrap($item), ($ttl > 0 ? $ttl : 0));
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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 null|array
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*/
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protected function driverRead(CacheItemInterface $item)
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{
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$data = apcu_fetch($item->getKey(), $success);
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if ($success === false) {
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return null;
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}
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return $data;
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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 apcu_delete($item->getKey());
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} else {
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throw new phpFastCacheInvalidArgumentException('Cross-Driver type confusion detected');
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}
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}
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/**
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* @return bool
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*/
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protected function driverClear()
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{
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return @apcu_clear_cache() && @apcu_clear_cache();
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}
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/**
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* @return bool
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*/
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protected function driverConnect()
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{
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return true;
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}
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/********************
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*
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* PSR-6 Extended Methods
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*
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*******************/
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/**
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* @return DriverStatistic
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*/
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public function getStats()
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{
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$stats = (array)apcu_cache_info();
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$date = (new \DateTime())->setTimestamp($stats[ 'start_time' ]);
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return (new DriverStatistic())
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->setData(implode(', ', array_keys($this->itemInstances)))
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->setInfo(sprintf("The APCU cache is up since %s, and have %d item(s) in cache.\n For more information see RawData.", $date->format(DATE_RFC2822),
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$stats[ 'num_entries' ]))
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->setRawData($stats)
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->setSize($stats[ 'mem_size' ]);
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}
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} |