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<?php |
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/** |
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* Bluz Framework Component |
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* |
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* @copyright Bluz PHP Team |
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* @link https://github.com/bluzphp/framework |
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*/ |
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/** |
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* @namespace |
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*/ |
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namespace Bluz\Cache\Adapter; |
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use Bluz\Cache\Cache; |
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use Bluz\Common\Exception\ComponentException; |
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use Bluz\Common\Exception\ConfigurationException; |
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/** |
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* Memcached cache adapter |
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* |
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* @package Bluz\Cache\Adapter |
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* @see \Memcached |
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*/ |
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class Memcached extends AbstractAdapter |
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{ |
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/** |
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* @var \Memcached instance of memcached |
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*/ |
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protected $handler = null; |
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/** |
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* Check and setup memcached servers |
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* |
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* @param array $settings |
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* @throws ComponentException |
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* @throws ConfigurationException |
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*/ |
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public function __construct($settings = []) |
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{ |
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// check Memcached extension |
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if (!extension_loaded('memcached')) { |
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throw new ComponentException( |
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"Memcached extension not installed/enabled. |
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Install and/or enable memcached extension. See phpinfo() for more information" |
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); |
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} |
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// check Memcached settings |
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if (!is_array($settings) || empty($settings) || !isset($settings['servers'])) { |
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throw new ConfigurationException( |
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"Memcached configuration is missed. Please check 'cache' configuration section" |
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); |
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} |
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parent::__construct($settings); |
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} |
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/** |
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* Get Mamcached Handler |
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* |
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* @return \Memcached |
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*/ |
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public function getHandler() |
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{ |
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if (!$this->handler) { |
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$persistentId = $this->settings['persistent'] ?? null; |
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$this->handler = new \Memcached($persistentId); |
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if (!$this->handler->getServerList()) { |
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$this->handler->addServers($this->settings['servers']); |
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} |
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if (isset($this->settings['options'])) { |
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$this->handler->setOptions($this->settings['options']); |
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} |
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} |
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return $this->handler; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $id |
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* @return mixed |
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*/ |
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protected function doGet($id) |
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{ |
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return $this->getHandler()->get($id); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $id |
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* @param mixed $data |
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* @param integer $ttl |
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* @return bool |
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*/ |
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protected function doAdd($id, $data, $ttl = Cache::TTL_NO_EXPIRY) |
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{ |
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return $this->getHandler()->add($id, $data, $ttl); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $id |
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* @param mixed $data |
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* @param integer $ttl |
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* @return bool |
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*/ |
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protected function doSet($id, $data, $ttl = Cache::TTL_NO_EXPIRY) |
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{ |
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return $this->getHandler()->set($id, $data, $ttl); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $id |
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* @return bool |
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*/ |
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protected function doContains($id) |
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{ |
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$this->getHandler()->get($id); |
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return $this->getHandler()->getResultCode() !== \Memcached::RES_NOTFOUND; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $id |
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* @return bool |
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*/ |
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protected function doDelete($id) |
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{ |
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return $this->getHandler()->delete($id); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return bool |
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*/ |
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protected function doFlush() |
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{ |
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return $this->getHandler()->flush(); |
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} |
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} |
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bluzphp /
framework
