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<?php |
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namespace Ubiquity\cache\system; |
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use Ubiquity\cache\CacheFile; |
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/** |
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* This class is responsible for storing values with MemCached. |
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* Ubiquity\cache\system$MemCachedDriver |
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* This class is part of Ubiquity |
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* |
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* @author jcheron <[email protected]> |
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* @version 1.0.0 |
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* |
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*/ |
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class MemCachedDriver extends AbstractDataCache { |
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/** |
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* |
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* @var \Memcached |
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*/ |
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private $cacheInstance; |
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private const CONTENT = 'content'; |
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private const TAG = 'tag'; |
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private const TIME = 'time'; |
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/** |
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* Initializes the cache-provider |
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*/ |
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public function __construct($root, $postfix = "", $cacheParams = []) { |
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parent::__construct ( $root, $postfix ); |
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$defaultParams = [ 'server' => '127.0.0.1','port' => 11211 ]; |
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$cacheParams = \array_merge ( $cacheParams, $defaultParams ); |
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$this->cacheInstance = new \Memcached (); |
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$this->cacheInstance->addServer ( $cacheParams ['server'], $cacheParams ['port'] ); |
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} |
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/** |
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* Check if annotation-data for the key has been stored. |
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* |
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* @param string $key cache key |
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* @return boolean true if data with the given key has been stored; otherwise false |
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*/ |
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public function exists($key) { |
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$k = $this->getRealKey ( $key ); |
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$this->cacheInstance->get ( $k ); |
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return \Memcached::RES_NOTFOUND !== $this->cacheInstance->getResultCode (); |
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} |
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public function store($key, $code, $tag = null, $php = true) { |
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$this->storeContent ( $key, $code, $tag ); |
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} |
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/** |
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* Caches the given data with the given key. |
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* |
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* @param string $key cache key |
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* @param string $content the source-code to be cached |
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* @param string $tag |
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*/ |
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protected function storeContent($key, $content, $tag) { |
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$key = $this->getRealKey ( $key ); |
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$this->cacheInstance->set ( $key, [ self::CONTENT => $content,self::TAG => $tag,self::TIME => \time () ] ); |
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} |
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protected function getRealKey($key) { |
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$key = \str_replace ( "/", "-", $key ); |
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return \str_replace ( "\\", "-", $key ); |
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} |
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/** |
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* Fetches data stored for the given key. |
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* |
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* @param string $key cache key |
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* @return mixed the cached data |
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*/ |
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public function fetch($key) { |
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$result = $this->cacheInstance->get ( $this->getRealKey ( $key ) ) [self::CONTENT]; |
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return eval ( $result ); |
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} |
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/** |
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* return data stored for the given key. |
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* |
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* @param string $key cache key |
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* @return mixed the cached data |
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*/ |
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public function file_get_contents($key) { |
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return $this->cacheInstance->get ( $this->getRealKey ( $key ) ) [self::CONTENT]; |
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} |
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/** |
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* Returns the timestamp of the last cache update for the given key. |
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* |
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* @param string $key cache key |
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* @return int unix timestamp |
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*/ |
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public function getTimestamp($key) { |
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$key = $this->getRealKey ( $key ); |
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return $this->cacheInstance->get ( $key ) [self::TIME]; |
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} |
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public function remove($key) { |
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$key = $this->getRealKey ( $key ); |
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$this->cacheInstance->delete ( $this->getRealKey ( $key ) ); |
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} |
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public function clear() { |
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$this->cacheInstance->flush (); |
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} |
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public function getCacheFiles($type) { |
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$result = [ ]; |
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$keys = $this->cacheInstance->getAllKeys (); |
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foreach ( $keys as $key ) { |
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$entry = $this->cacheInstance->get ( $key ); |
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if ($entry [self::TAG] === $type) { |
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$result [] = new CacheFile ( \ucfirst ( $type ), $key, $entry [self::TIME], "", $key ); |
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} |
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} |
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if (\sizeof ( $result ) === 0) |
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$result [] = new CacheFile ( \ucfirst ( $type ), "", "", "" ); |
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return $result; |
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} |
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public function clearCache($type) { |
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$keys = $this->cacheInstance->getAllKeys (); |
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foreach ( $keys as $key ) { |
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$entry = $this->cacheInstance->get ( $key ); |
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if ($entry [self::TAG] === $type) { |
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$this->cacheInstance->delete ( $key ); |
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} |
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} |
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} |
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public function getCacheInfo() { |
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return parent::getCacheInfo () . "<br>Driver name : <b>" . \Memcached::class . "</b>"; |
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} |
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public function getEntryKey($key) { |
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return $this->getRealKey ( $key ); |
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} |
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} |
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phpMv /
ubiquity
