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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\Couchbase; |
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use CouchbaseCluster as CouchbaseClient; |
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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 phpFastCache\Exceptions\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 CouchbaseClient $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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* @var \CouchbaseBucket[] |
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*/ |
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protected $bucketInstances = []; |
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/** |
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* @var string |
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*/ |
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protected $bucketCurrent = ''; |
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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, $this->getDriverName())); |
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} else { |
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$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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return extension_loaded('Couchbase'); |
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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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return $this->getBucket()->upsert($item->getEncodedKey(), $this->encode($this->driverPreWrap($item)), ['expiry' => $item->getTtl()]); |
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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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try { |
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/** |
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* CouchbaseBucket::get() returns a CouchbaseMetaDoc object |
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*/ |
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return $this->decode($this->getBucket()->get($item->getEncodedKey())->value); |
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} catch (\CouchbaseException $e) { |
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return null; |
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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 $this->getBucket()->remove($item->getEncodedKey()); |
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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 $this->getBucket()->manager()->flush(); |
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} |
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/** |
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* @return bool |
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* @throws phpFastCacheLogicException |
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*/ |
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protected function driverConnect() |
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{ |
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if ($this->instance instanceof CouchbaseClient) { |
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throw new phpFastCacheLogicException('Already connected to Couchbase server'); |
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} else { |
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$host = isset($this->config[ 'host' ]) ? $this->config[ 'host' ] : '127.0.0.1'; |
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$port = isset($this->config[ 'port' ]) ? $this->config[ 'port' ] : 8091; |
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$password = isset($this->config[ 'password' ]) ? $this->config[ 'password' ] : ''; |
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$username = isset($this->config[ 'username' ]) ? $this->config[ 'username' ] : ''; |
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$buckets = isset($this->config[ 'buckets' ]) ? $this->config[ 'buckets' ] : [ |
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[ |
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'bucket' => 'default', |
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'password' => '', |
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], |
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]; |
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$this->instance = new CouchbaseClient("couchbase://{$host}:{$port}", $username, $password); |
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foreach ($buckets as $bucket) { |
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$this->bucketCurrent = $this->bucketCurrent ?: $bucket[ 'bucket' ]; |
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$this->setBucket($bucket[ 'bucket' ], $this->instance->openBucket($bucket[ 'bucket' ], $bucket[ 'password' ])); |
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} |
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} |
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return true; |
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} |
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/** |
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* @return \CouchbaseBucket |
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*/ |
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protected function getBucket() |
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{ |
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return $this->bucketInstances[ $this->bucketCurrent ]; |
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} |
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/** |
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* @param $bucketName |
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* @param \CouchbaseBucket $CouchbaseBucket |
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* @throws phpFastCacheLogicException |
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*/ |
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protected function setBucket($bucketName, \CouchbaseBucket $CouchbaseBucket) |
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{ |
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if (!array_key_exists($bucketName, $this->bucketInstances)) { |
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$this->bucketInstances[ $bucketName ] = $CouchbaseBucket; |
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} else { |
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throw new phpFastCacheLogicException('A bucket instance with this name already exists.'); |
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} |
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} |
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/******************** |
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* |
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* PSR-6 Extended Methods |
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* |
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*******************/ |
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/** |
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* @return DriverStatistic |
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*/ |
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public function getStats() |
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{ |
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$info = $this->getBucket()->manager()->info(); |
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return (new DriverStatistic()) |
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->setSize($info[ 'basicStats' ][ 'diskUsed' ]) |
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->setRawData($info) |
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->setData(implode(', ', array_keys($this->itemInstances))) |
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->setInfo('CouchBase version ' . $info[ 'nodes' ][ 0 ][ 'version' ] . ', Uptime (in days): ' . round($info[ 'nodes' ][ 0 ][ 'uptime' ] / 86400, |
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1) . "\n For more information see RawData."); |
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} |
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} |