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<?php |
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/** |
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* Quantum PHP Framework |
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* |
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* An open source software development framework for PHP |
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* |
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* @package Quantum |
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* @author Arman Ag. <[email protected]> |
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* @copyright Copyright (c) 2018 Softberg LLC (https://softberg.org) |
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* @link http://quantum.softberg.org/ |
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* @since 2.8.0 |
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*/ |
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namespace Quantum\Libraries\Cache\Adapters; |
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use Quantum\Exceptions\CacheException; |
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use Psr\SimpleCache\CacheInterface; |
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use InvalidArgumentException; |
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use Memcached; |
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use Exception; |
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/** |
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* Class MemcachedAdapter |
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* @package Quantum\Libraries\Cache\Adapters |
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*/ |
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class MemcachedAdapter implements CacheInterface |
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{ |
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/** |
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* @var int |
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*/ |
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private $ttl = 30; |
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/** |
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* @var string |
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*/ |
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private $prefix; |
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/** |
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* @var \Memcached |
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*/ |
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private $memcached; |
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/** |
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* MemcachedAdapter constructor |
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* @param array $params |
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*/ |
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public function __construct(array $params) |
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{ |
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$this->ttl = $params['ttl']; |
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$this->prefix = $params['prefix']; |
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$this->memcached = new Memcached(); |
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$this->memcached->addServer($params['host'], $params['port']); |
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if (!$this->memcached->getStats()) { |
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throw CacheException::cantConnect('Memcached server'); |
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} |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function get($key, $default = null) |
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{ |
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if ($this->has($key)) { |
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$cacheItem = $this->memcached->get($this->keyHash($key)); |
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try { |
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return unserialize($cacheItem); |
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} catch (Exception $e) { |
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$this->delete($key); |
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return $default; |
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} |
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} |
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return $default; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getMultiple($keys, $default = null) |
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{ |
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if (!is_array($keys)) { |
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throw new InvalidArgumentException(t(_message('exception.non_iterable_value', '$values')), E_WARNING); |
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} |
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$result = []; |
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foreach ($keys as $key) { |
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$result[$key] = $this->get($key, $default); |
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} |
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return $result; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function has($key): bool |
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{ |
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$cacheItem = $this->memcached->get($this->keyHash($key)); |
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if (!$cacheItem) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function set($key, $value, $ttl = null) |
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{ |
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return $this->memcached->set($this->keyHash($key), serialize($value), $this->ttl); |
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} |
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/** |
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* @inheritDoc |
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* @throws InvalidArgumentException |
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*/ |
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public function setMultiple($values, $ttl = null) |
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{ |
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if (!is_array($values)) { |
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throw new InvalidArgumentException(t(_message('exception.non_iterable_value', '$values')), E_WARNING); |
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} |
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$results = []; |
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foreach ($values as $key => $value) { |
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$results[] = $this->set($key, $value, $ttl); |
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} |
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return !in_array(false, $results, true); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function delete($key) |
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{ |
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return $this->memcached->delete($this->keyHash($key)); |
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} |
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/** |
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* @inheritDoc |
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* @throws InvalidArgumentException |
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*/ |
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public function deleteMultiple($keys) |
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{ |
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if (!is_array($keys)) { |
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throw new InvalidArgumentException(t(_message('exception.non_iterable_value', '$values')), E_WARNING); |
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} |
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$results = []; |
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foreach ($keys as $key) { |
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$results[] = $this->delete($key); |
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} |
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return !in_array(false, $results, true); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function clear() |
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{ |
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return $this->memcached->flush(); |
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} |
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/** |
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* Gets the hashed key |
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* @param string $key |
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* @return string |
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*/ |
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private function keyHash(string $key): string |
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{ |
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return sha1($this->prefix . $key); |
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} |
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} |
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softberg /
quantum-php-core
