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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\Couchbase; use CouchbaseCluster as CouchbaseClient; use Phpfastcache\Core\Pool\{ DriverBaseTrait, ExtendedCacheItemPoolInterface }; use Phpfastcache\Entities\DriverStatistic; use Phpfastcache\Exceptions\{ PhpfastcacheInvalidArgumentException, PhpfastcacheLogicException }; use Psr\Cache\CacheItemInterface; /** * Class Driver * @package phpFastCache\Drivers * @property CouchbaseClient $instance Instance of driver service * @property Config $config Config object * @method Config getConfig() Return the config object */ class Driver implements ExtendedCacheItemPoolInterface { use DriverBaseTrait; /** * @var \CouchbaseBucket[] */ protected $bucketInstances = []; /** * @var \CouchbaseBucket */ protected $bucketInstance; /** * @var string */ protected $currentBucket = ''; /** * @return bool */ public function driverCheck(): bool { return \extension_loaded('couchbase'); } /** * @return bool * @throws PhpfastcacheLogicException */ protected function driverConnect(): bool { if ($this->instance instanceof CouchbaseClient) { throw new PhpfastcacheLogicException('Already connected to Couchbase server'); } $clientConfig = $this->getConfig(); $authenticator = new \Couchbase\PasswordAuthenticator(); $authenticator->username($clientConfig->getUsername())->password($clientConfig->getPassword()); $this->instance = new CouchbaseClient( 'couchbase://' . $clientConfig->getHost() . ($clientConfig->getPort() ? ":{$clientConfig->getPort()}" : '') ); $this->instance->authenticate($authenticator); $this->setBucket($this->instance->openBucket($clientConfig->getBucketName())); return true; } /** * @param \Psr\Cache\CacheItemInterface $item * @return null|array */ protected function driverRead(CacheItemInterface $item) { try { /** * CouchbaseBucket::get() returns a CouchbaseMetaDoc object */ return $this->decode($this->getBucket()->get($item->getEncodedKey())->value); } catch (\CouchbaseException $e) { return null; } } /** * @param \Psr\Cache\CacheItemInterface $item * @return bool * @throws PhpfastcacheInvalidArgumentException */ protected function driverWrite(CacheItemInterface $item): bool { /** * Check for Cross-Driver type confusion */ if ($item instanceof Item) { try { return (bool)$this->getBucket()->upsert( $item->getEncodedKey(), $this->encode($this->driverPreWrap($item)), ['expiry' => $item->getTtl()] ); } catch (\CouchbaseException $e) { return false; } } throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected'); } /** * @param \Psr\Cache\CacheItemInterface $item * @return bool * @throws PhpfastcacheInvalidArgumentException */ protected function driverDelete(CacheItemInterface $item) { /** * Check for Cross-Driver type confusion */ if ($item instanceof Item) { try { return (bool)$this->getBucket()->remove($item->getEncodedKey()); } catch (\Couchbase\Exception $e) { return $e->getCode() === COUCHBASE_KEY_ENOENT; } } throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected'); } /** * @return bool */ protected function driverClear(): bool { $this->getBucket()->manager()->flush(); return true; } /** * @return \CouchbaseBucket */ protected function getBucket(): \CouchbaseBucket { return $this->bucketInstance; } /** * @param \CouchbaseBucket $CouchbaseBucket */ protected function setBucket(\CouchbaseBucket $CouchbaseBucket) { $this->bucketInstance = $CouchbaseBucket; } /******************** * * PSR-6 Extended Methods * *******************/ /** * @return DriverStatistic */ public function getStats(): DriverStatistic { $info = $this->getBucket()->manager()->info(); return (new DriverStatistic()) ->setSize($info['basicStats']['diskUsed']) ->setRawData($info) ->setData(\implode(', ', \array_keys($this->itemInstances))) ->setInfo('CouchBase version ' . $info['nodes'][0]['version'] . ', Uptime (in days): ' . round($info['nodes'][0]['uptime'] / 86400, 1) . "\n For more information see RawData."); } }