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<?php |
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/* |
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* This file is part of the Shieldon Simple Cache package. |
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* |
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* (c) Terry L. <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Shieldon\SimpleCache; |
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use Psr\SimpleCache\CacheInterface; |
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use Shieldon\SimpleCache\Exception\CacheArgumentException; |
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use function file_exists; |
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use function is_string; |
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use function strtolower; |
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use function ucfirst; |
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/** |
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* The base Cache Adapter class. |
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*/ |
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class Cache |
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{ |
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/** |
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* The cache driver. |
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* |
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* @var null|CacheInterface |
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*/ |
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protected $driver; |
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/** |
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* Constructor. |
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* |
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* @param string|CacheInterface $driver The cache driver. |
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* @param array $settings The settings. |
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* |
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* @throws CacheException |
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*/ |
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public function __construct($driver = '', array $settings = []) |
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{ |
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if ($driver instanceof CacheInterface) { |
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$this->driver = $driver; |
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} elseif (is_string($driver)) { |
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$class = ucfirst(strtolower($driver)); |
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if (file_exists(__DIR__ . '/Driver/' . $class . '.php')) { |
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$class = '\Shieldon\SimpleCache\Driver\\' . $class; |
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$this->driver = new $class($settings); |
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$this->gc($settings); |
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} |
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} |
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if (!$this->driver) { |
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throw new CacheArgumentException( |
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'The data driver is not set correctly.' |
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); |
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} |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function get($key, $default = null) |
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{ |
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return $this->driver->get($key, $default); |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function set($key, $value, $ttl = null) |
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{ |
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return $this->driver->set($key, $value, $ttl); |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function delete($key) |
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{ |
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return $this->driver->delete($key); |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function clear() |
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{ |
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return $this->driver->clear(); |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function has($key) |
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{ |
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return $this->driver->has($key); |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function getMultiple($keys, $default = null) |
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{ |
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return $this->driver->getMultiple($keys, $default); |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function setMultiple($values, $ttl = null) |
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{ |
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return $this->driver->setMultiple($values, $ttl); |
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} |
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/** |
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* @inheritDoc CacheInterface |
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*/ |
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public function deleteMultiple($keys) |
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{ |
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return $this->driver->deleteMultiple($keys); |
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} |
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/** |
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* Create or rebuid the data schema. [Non-PSR-16] |
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* This method is avaialbe for Mysql and Sqlite drivers. |
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* |
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* @return bool |
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*/ |
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public function rebuild(): bool |
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{ |
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if (method_exists($this->driver, 'rebuild')) { |
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return $this->driver->rebuild(); |
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} |
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return false; |
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} |
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/** |
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* Clear all expired items. [Non-PSR-16] |
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* |
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* @return array The list of the removed items. |
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*/ |
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public function clearExpiredItems(): array |
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{ |
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return $this->gc([ |
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'gc_enable' => true, |
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'gc_probability' => 1, |
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'gc_divisor' => 1, |
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]); |
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} |
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/** |
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* Performing cache data garbage collection for drivers that don't have |
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* ability to remove expired items automatically. |
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* This method is not needed for Redis and Memcached driver. |
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* |
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* @param array $settings [bool $gc_enable, int $gc_probability, int $gc_divisor] |
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* |
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* @return array The list of the removed items. |
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*/ |
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protected function gc(array $settings = []): array |
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{ |
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if (empty($settings['gc_enable'])) { |
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return []; |
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} |
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$removedList = []; |
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$probability = $settings['gc_probability'] ?? 1; |
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$divisor = $settings['gc_divisor'] ?? 100; |
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if (method_exists($this->driver, 'gc')) { |
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$removedList = $this->driver->gc($probability, $divisor); |
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} |
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return $removedList; |
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} |
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} |