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> https://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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declare(strict_types=1);
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namespace Phpfastcache\Drivers\Leveldb;
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use LevelDB as LeveldbClient;
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use Phpfastcache\Cluster\AggregatablePoolInterface;
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use Phpfastcache\Core\Pool\{DriverBaseTrait, ExtendedCacheItemPoolInterface, IO\IOHelperTrait};
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use Phpfastcache\Exceptions\{PhpfastcacheCoreException, PhpfastcacheInvalidArgumentException, PhpfastcacheLogicException};
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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 LeveldbClient $instance Instance of driver service
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* @property Config $config Config object
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* @method Config getConfig() Return the config object
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*/
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class Driver implements ExtendedCacheItemPoolInterface, AggregatablePoolInterface
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{
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use DriverBaseTrait;
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use IOHelperTrait;
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protected const LEVELDB_FILENAME = '.database';
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/**
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* @return bool
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*/
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public function driverCheck(): bool
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{
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return extension_loaded('Leveldb');
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}
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/**
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* Close connection on destruct
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*/
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public function __destruct()
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{
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if ($this->instance instanceof LeveldbClient) {
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$this->instance->close();
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$this->instance = null;
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}
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}
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/**
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* @param CacheItemInterface $item
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* @return null|array
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*/
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protected function driverRead(CacheItemInterface $item)
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{
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$val = $this->instance->get($item->getKey());
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if ($val == false) {
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return null;
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}
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return $this->decode($val);
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}
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/**
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* @param CacheItemInterface $item
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* @return bool
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* @throws PhpfastcacheInvalidArgumentException
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*/
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protected function driverWrite(CacheItemInterface $item): bool
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{
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/**
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* Check for Cross-Driver type confusion
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*/
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if ($item instanceof Item) {
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return (bool)$this->instance->set($item->getKey(), $this->encode($this->driverPreWrap($item)));
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}
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throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected');
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}
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/**
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* @param 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 $item): bool
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{
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/**
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* Check for Cross-Driver type confusion
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*/
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if ($item instanceof Item) {
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return $this->instance->delete($item->getKey());
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}
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throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected');
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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(): bool
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{
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if ($this->instance instanceof LeveldbClient) {
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$this->instance->close();
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$this->instance = null;
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}
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$result = (bool)LeveldbClient::destroy($this->getLeveldbFile());
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$this->driverConnect();
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return $result;
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}
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/**
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* @return string
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* @throws PhpfastcacheCoreException
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*/
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public function getLeveldbFile(): string
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{
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return $this->getPath() . '/' . self::LEVELDB_FILENAME;
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}
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/**
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* @return bool
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* @throws PhpfastcacheLogicException
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*/
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protected function driverConnect(): bool
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{
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if ($this->instance instanceof LeveldbClient) {
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throw new PhpfastcacheLogicException('Already connected to Leveldb database');
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}
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$this->instance = $this->instance ?: new LeveldbClient($this->getLeveldbFile());
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return true;
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}
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}
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