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<?php |
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/** |
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* Provides caching functionality |
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* |
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* PHP Version 5 |
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* |
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* @category Core |
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* @package Cache |
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* @author Hans-Joachim Piepereit <[email protected]> |
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* @copyright 2013 cSphere Team |
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* @license http://opensource.org/licenses/bsd-license Simplified BSD License |
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* @link http://www.csphere.eu |
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**/ |
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namespace csphere\core\cache; |
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/** |
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* Provides caching functionality |
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* |
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* @category Core |
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* @package Cache |
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* @author Hans-Joachim Piepereit <[email protected]> |
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* @copyright 2013 cSphere Team |
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* @license http://opensource.org/licenses/bsd-license Simplified BSD License |
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* @link http://www.csphere.eu |
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**/ |
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abstract class Base extends \csphere\core\service\Drivers |
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{ |
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/** |
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* Stores the logger object |
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**/ |
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protected $logger = null; |
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/** |
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* Clears the cache content |
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* |
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* @return boolean |
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**/ |
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abstract public function clear(); |
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/** |
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* Removes a cached key |
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* |
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* @param string $key Name of the key |
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* @param int $ttl Time to life used for the key |
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* |
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* @return boolean |
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**/ |
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abstract public function delete($key, $ttl = 0); |
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/** |
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* Returns a formatted array with statistics |
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* |
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* @return array |
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**/ |
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public function info() |
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{ |
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$info = $this->config; |
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unset($info['password'], $info['timeout']); |
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return $info; |
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} |
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/** |
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* Returns a formatted array with all keys and additional information |
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* |
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* @return array |
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**/ |
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abstract public function keys(); |
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/** |
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* Fetches the desired key |
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* |
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* @param string $key Name of the key |
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* @param int $ttl Time to life used for the key |
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* |
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* @return array |
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**/ |
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abstract public function load($key, $ttl = 0); |
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/** |
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* Fetches the desired keys |
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* |
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* @param array $keys Name of the keys |
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* |
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* @return array |
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**/ |
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public function loadArray(array $keys) |
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{ |
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$result = []; |
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// Run through all keys |
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foreach ($keys AS $key) { |
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$result[$key] = $this->load($key); |
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} |
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return $result; |
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} |
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/** |
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* Logs cache inserts |
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* |
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* @param string $key The cache key that is stored |
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* |
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* @return void |
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**/ |
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protected function log($key) |
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{ |
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// Get logger if not done yet |
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if ($this->logger == null) { |
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$this->logger = $this->loader->load('logs'); |
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} |
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$this->logger->log('cache', $key); |
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} |
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/** |
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* Stores the key with its value in the cache |
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* |
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* @param string $key Name of the key |
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* @param array $value Content to be stored |
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* @param int $ttl Time to life used for the key |
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* |
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* @return boolean |
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**/ |
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abstract public function save($key, $value, $ttl = 0); |
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} |
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