diff -r 000000000000 -r 4eba9c11703f web/Zend/Cache/Backend/ZendServer.php --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/web/Zend/Cache/Backend/ZendServer.php Mon Dec 13 18:29:26 2010 +0100 @@ -0,0 +1,207 @@ + (string) namespace : + * Namespace to be used for chaching operations + * + * @var array available options + */ + protected $_options = array( + 'namespace' => 'zendframework' + ); + + /** + * Store data + * + * @param mixed $data Object to store + * @param string $id Cache id + * @param int $timeToLive Time to live in seconds + * @throws Zend_Cache_Exception + */ + abstract protected function _store($data, $id, $timeToLive); + + /** + * Fetch data + * + * @param string $id Cache id + * @throws Zend_Cache_Exception + */ + abstract protected function _fetch($id); + + /** + * Unset data + * + * @param string $id Cache id + */ + abstract protected function _unset($id); + + /** + * Clear cache + */ + abstract protected function _clear(); + + /** + * Test if a cache is available for the given id and (if yes) return it (false else) + * + * @param string $id cache id + * @param boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested + * @return string cached datas (or false) + */ + public function load($id, $doNotTestCacheValidity = false) + { + $tmp = $this->_fetch($id); + if ($tmp !== null) { + return $tmp; + } + return false; + } + + /** + * Test if a cache is available or not (for the given id) + * + * @param string $id cache id + * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record + * @throws Zend_Cache_Exception + */ + public function test($id) + { + $tmp = $this->_fetch('internal-metadatas---' . $id); + if ($tmp !== false) { + if (!is_array($tmp) || !isset($tmp['mtime'])) { + Zend_Cache::throwException('Cache metadata for \'' . $id . '\' id is corrupted' ); + } + return $tmp['mtime']; + } + return false; + } + + /** + * Compute & return the expire time + * + * @return int expire time (unix timestamp) + */ + private function _expireTime($lifetime) + { + if ($lifetime === null) { + return 9999999999; + } + return time() + $lifetime; + } + + /** + * Save some string datas into a cache record + * + * Note : $data is always "string" (serialization is done by the + * core not by the backend) + * + * @param string $data datas to cache + * @param string $id cache id + * @param array $tags array of strings, the cache record will be tagged by each string entry + * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime) + * @return boolean true if no problem + */ + public function save($data, $id, $tags = array(), $specificLifetime = false) + { + $lifetime = $this->getLifetime($specificLifetime); + $metadatas = array( + 'mtime' => time(), + 'expire' => $this->_expireTime($lifetime), + ); + + if (count($tags) > 0) { + $this->_log('Zend_Cache_Backend_ZendServer::save() : tags are unsupported by the ZendServer backends'); + } + + return $this->_store($data, $id, $lifetime) && + $this->_store($metadatas, 'internal-metadatas---' . $id, $lifetime); + } + + /** + * Remove a cache record + * + * @param string $id cache id + * @return boolean true if no problem + */ + public function remove($id) + { + $result1 = $this->_unset($id); + $result2 = $this->_unset('internal-metadatas---' . $id); + + return $result1 && $result2; + } + + /** + * Clean some cache records + * + * Available modes are : + * 'all' (default) => remove all cache entries ($tags is not used) + * 'old' => unsupported + * 'matchingTag' => unsupported + * 'notMatchingTag' => unsupported + * 'matchingAnyTag' => unsupported + * + * @param string $mode clean mode + * @param array $tags array of tags + * @throws Zend_Cache_Exception + * @return boolean true if no problem + */ + public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array()) + { + switch ($mode) { + case Zend_Cache::CLEANING_MODE_ALL: + $this->_clear(); + return true; + break; + case Zend_Cache::CLEANING_MODE_OLD: + $this->_log("Zend_Cache_Backend_ZendServer::clean() : CLEANING_MODE_OLD is unsupported by the Zend Server backends."); + break; + case Zend_Cache::CLEANING_MODE_MATCHING_TAG: + case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG: + case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG: + $this->_clear(); + $this->_log('Zend_Cache_Backend_ZendServer::clean() : tags are unsupported by the Zend Server backends.'); + break; + default: + Zend_Cache::throwException('Invalid mode for clean() method'); + break; + } + } +}