*/
namespace Friendica\Core;
-use Friendica\Core\Cache;
-use Friendica\Core\Config;
+use Friendica\Core\Cache\CacheDriverFactory;
/**
* @brief Class for storing data for a short time
*/
-class Cache
+class Cache extends \Friendica\BaseObject
{
- const MONTH = 0;
- const WEEK = 1;
- const DAY = 2;
- const HOUR = 3;
- const HALF_HOUR = 4;
- const QUARTER_HOUR = 5;
- const FIVE_MINUTES = 6;
- const MINUTE = 7;
+ const MONTH = 2592000;
+ const WEEK = 604800;
+ const DAY = 86400;
+ const HOUR = 3600;
+ const HALF_HOUR = 1800;
+ const QUARTER_HOUR = 900;
+ const FIVE_MINUTES = 300;
+ const MINUTE = 60;
+ const INFINITE = 0;
/**
* @var Cache\ICacheDriver
*/
- static $driver = null;
+ private static $driver = null;
+ public static $driver_class = null;
+ public static $driver_name = null;
public static function init()
{
- switch(Config::get('system', 'cache_driver', 'database')) {
- case 'memcache':
- $memcache_host = Config::get('system', 'memcache_host', '127.0.0.1');
- $memcache_port = Config::get('system', 'memcache_port', 11211);
-
- self::$driver = new Cache\MemcacheCacheDriver($memcache_host, $memcache_port);
- break;
- case 'memcached':
- $memcached_host = Config::get('system', 'memcached_host', '127.0.0.1');
- $memcached_port = Config::get('system', 'memcached_port', 11211);
-
- self::$driver = new Cache\MemcachedCacheDriver($memcached_host, $memcached_port);
- break;
- default:
- self::$driver = new Cache\DatabaseCacheDriver();
- }
- }
-
- /**
- * @brief Return the duration for a given cache level
- *
- * @param integer $level Cache level
- *
- * @return integer The cache duration in seconds
- */
- public static function duration($level)
- {
- switch ($level) {
- case self::MONTH:
- $seconds = 2592000;
- break;
- case self::WEEK:
- $seconds = 604800;
- break;
- case self::DAY:
- $seconds = 86400;
- break;
- case self::HOUR:
- $seconds = 3600;
- break;
- case self::HALF_HOUR:
- $seconds = 1800;
- break;
- case self::QUARTER_HOUR:
- $seconds = 900;
- break;
- case self::FIVE_MINUTES:
- $seconds = 300;
- break;
- case self::MINUTE:
- default:
- $seconds = 60;
- break;
- }
- return $seconds;
+ self::$driver_name = Config::get('system', 'cache_driver', 'database');
+ self::$driver = CacheDriverFactory::create(self::$driver_name);
+ self::$driver_class = get_class(self::$driver);
}
/**
return self::$driver;
}
+ /**
+ * @brief Returns all the cache keys sorted alphabetically
+ *
+ * @param string $prefix Prefix of the keys (optional)
+ *
+ * @return array Empty if the driver doesn't support this feature
+ * @throws \Exception
+ */
+ public static function getAllKeys($prefix = null)
+ {
+ $time = microtime(true);
+
+ $return = self::getDriver()->getAllKeys($prefix);
+
+ self::getApp()->saveTimestamp($time, 'cache');
+
+ return $return;
+ }
+
/**
* @brief Fetch cached data according to the key
*
* @param string $key The key to the cached data
*
* @return mixed Cached $value or "null" if not found
+ * @throws \Exception
*/
public static function get($key)
{
- return self::getDriver()->get($key);
+ $time = microtime(true);
+
+ $return = self::getDriver()->get($key);
+
+ self::getApp()->saveTimestamp($time, 'cache');
+
+ return $return;
}
/**
* @param integer $duration The cache lifespan
*
* @return bool
+ * @throws \Exception
*/
public static function set($key, $value, $duration = self::MONTH)
{
- return self::getDriver()->set($key, $value, $duration);
+ $time = microtime(true);
+
+ $return = self::getDriver()->set($key, $value, $duration);
+
+ self::getApp()->saveTimestamp($time, 'cache_write');
+
+ return $return;
+ }
+
+ /**
+ * @brief Delete a value from the cache
+ *
+ * @param string $key The key to the cached data
+ *
+ * @return bool
+ * @throws \Exception
+ */
+ public static function delete($key)
+ {
+ $time = microtime(true);
+
+ $return = self::getDriver()->delete($key);
+
+ self::getApp()->saveTimestamp($time, 'cache_write');
+
+ return $return;
}
/**
* @brief Remove outdated data from the cache
*
- * @param integer $max_level The maximum cache level that is to be cleared
+ * @param boolean $outdated just remove outdated values
*
- * @return void
+ * @return bool
*/
- public static function clear()
+ public static function clear($outdated = true)
{
- return self::getDriver()->clear();
+ return self::getDriver()->clear($outdated);
}
}