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<?php |
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/** |
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* Ion |
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* |
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* Building blocks for web development |
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* |
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* @package Ion |
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* @author Timothy J. Warren |
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* @copyright Copyright (c) 2015 - 2016 |
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* @license MIT |
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*/ |
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namespace Aviat\Ion\Cache; |
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use \Aviat\Ion\Di\ContainerInterface; |
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/** |
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* Class proxying cached and fresh values from the selected cache driver |
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*/ |
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class CacheManager implements CacheInterface { |
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/** |
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* @var CacheDriverInterface |
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*/ |
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protected $driver; |
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/** |
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* Retreive the appropriate driver from the container |
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*/ |
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public function __construct(ContainerInterface $container) |
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{ |
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$config = $container->get('config'); |
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$driverConf = $config->get('cache_driver'); |
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if (empty($driverConf)) |
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{ |
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$driverConf = 'SQLDriver'; |
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} |
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$driverClass = __NAMESPACE__ . "\\Driver\\{$driverConf}"; |
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$driver = new $driverClass($container); |
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$this->driver = $driver; |
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} |
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/** |
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* Retreive a cached value if it exists, otherwise, get the value |
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* from the passed arguments |
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* |
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* @param object $object - object to retrieve fresh value from |
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* @param string $method - method name to call |
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* @param [array] $args - the arguments to pass to the retrieval method |
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* @return mixed - the cached or fresh data |
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*/ |
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public function get($object, $method, array $args=[]) |
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{ |
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$hash = $this->generateHashForMethod($object, $method, $args); |
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$data = $this->driver->get($hash); |
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if (empty($data)) |
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{ |
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$data = call_user_func_array([$object, $method], $args); |
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$this->driver->set($hash, $data); |
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} |
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return $data; |
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} |
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/** |
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* Retreive a fresh value from the method, and update the cache |
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* @param object $object - object to retrieve fresh value from |
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* @param string $method - method name to call |
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* @param [array] $args - the arguments to pass to the retrieval method |
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* @return mixed - the fresh data |
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*/ |
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public function getFresh($object, $method, array $args=[]) |
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{ |
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$hash = $this->generateHashForMethod($object, $method, $args); |
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$data = call_user_func_array([$object, $method], $args); |
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$this->driver->set($hash, $data); |
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return $data; |
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} |
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/** |
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* Clear the entire cache |
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* |
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* @return void |
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*/ |
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public function purge() |
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{ |
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$this->driver->invalidateAll(); |
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} |
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/** |
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* Generate a hash as a cache key from the current method call |
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* |
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* @param object $object |
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* @param string $method |
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* @param array $args |
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* @return string |
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*/ |
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protected function generateHashForMethod($object, $method, array $args) |
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{ |
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$classname = get_class($object); |
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$keyObj = [ |
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'class' => $classname, |
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'method' => $method, |
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'args' => $args, |
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]; |
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$hash = sha1(json_encode($keyObj)); |
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return $hash; |
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} |
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} |
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// End of CacheManager.php |
timw4mail /
HummingBirdAnimeClient
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