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<?php |
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namespace Cachearium\Backend; |
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use Cachearium\CacheAbstract; |
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/** |
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* Caches in APC |
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* |
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*/ |
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class CacheAPC extends CacheAbstract { |
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// @codeCoverageIgnoreStart |
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/** |
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* Cache constructor (this is a singleton). |
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* |
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* @return Cache The cache singleton. |
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*/ |
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static public function singleton() { |
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static $instances; |
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if (!isset($instances)) { |
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$instances = new CacheAPC(); |
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} |
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return $instances; |
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} |
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// Prevent users to clone the instance |
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public function __clone() { |
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trigger_error('Cloning is not allowed.', LH_TRIGGER_UNEXPECTED); |
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} |
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// @codeCoverageIgnoreEnd |
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/** |
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* Constructor. |
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* @codeCoverageIgnore |
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*/ |
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private function __construct() { |
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$this->enable(); |
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} |
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public function enable() { |
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if (!extension_loaded('apc')) { |
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$this->enabled = false; |
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return false; |
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} |
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return parent::enable(); |
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} |
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private function checkValidArgs($base, $id, $sub) { |
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if (is_array($base) || is_array($id) || !is_string($sub)) { |
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throw new CacheInvalidDataException('Invalid get parameter'); |
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} |
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} |
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public function get($base, $id, $sub = LH_DEFAULT_CACHE_ID) { |
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// @codeCoverageIgnoreStart |
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if (!$this->enabled) { |
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throw new NotCachedException(); |
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} |
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// @codeCoverageIgnoreEnd |
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if (!is_string($sub)) { |
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$sub = md5(serialize($sub)); |
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} |
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$this->checkValidArgs($base, $id, $sub); |
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$key = (new CacheKey($base, $id, $sub))->getHash(); |
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$success = false; |
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$data = apc_fetch($key, $success); |
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if (!$success) { |
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$this->log(CacheLogEnum::MISSED, $base, $id, $sub); |
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throw new NotCachedException(); |
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} |
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return $data; |
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} |
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public function store($data, $base, $id, $sub = LH_DEFAULT_CACHE_ID, $lifetime = 0) { |
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// @codeCoverageIgnoreStart |
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if (!$this->enabled) { |
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return false; |
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} |
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// @codeCoverageIgnoreEnd |
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if (!is_string($sub)) { |
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$sub = md5(serialize($sub)); |
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} |
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$this->checkValidArgs($base, $id, $sub); |
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$key = (new CacheKey($base, $id, $sub))->getHash(); |
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apc_store($key, $data, $lifetime); |
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return true; |
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} |
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public function delete($base, $id, $sub = LH_DEFAULT_CACHE_ID) { |
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if (!is_string($sub)) { |
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$sub = md5(serialize($sub)); |
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} |
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$this->checkValidArgs($base, $id, $sub); |
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$key = (new CacheKey($base, $id, $sub))->getHash(); |
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apc_delete($key); |
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return true; |
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} |
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public function clean($base, $id) { |
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// TODO |
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return true; |
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} |
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public function clear() { |
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apc_clear_cache('user'); |
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return true; |
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} |
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public function prefetch($data) { |
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// nothing. |
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} |
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public function report() { |
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if ($this->should_log == false) { |
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return; |
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} |
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// TODO |
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} |
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} |
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Corollarium /
cachearium
