/**
* Creates new instance of Hybrid cache driver
*
* @param string $slow (optional) Name of "slow" driver, if null the best available driver will be choosen
* @param string $fast (optional) Name of "fast" driver, if null the best available driver will be choosen
* @param array $slow_params (optional) Initialization parameters for slow driver
* @param array $fast_params (optional) Initialization parameters for fast driver
* @return vivvo_cache_Hybrid
*/
public static function factory($slow = null, $fast = null, array $slow_params = array(), array $fast_params = array())
{
if ($slow == null) {
if (defined('VIVVO_SYSTEM_CACHE_DRIVER_SLOW')) {
$slow = VIVVO_SYSTEM_CACHE_DRIVER_SLOW;
} else {
$priorities = array_keys(self::$slow_drivers);
rsort($priorities);
foreach ($priorities as $priority) {
if (vivvo_cache::is_supported(self::$slow_drivers[$priority])) {
$slow = self::$slow_drivers[$priority];
break;
}
}
}
}
if ($fast == null) {
if (defined('VIVVO_SYSTEM_CACHE_DRIVER_FAST')) {
$fast = VIVVO_SYSTEM_CACHE_DRIVER_FAST;
} else {
$priorities = array_keys(self::$fast_drivers);
rsort($priorities);
foreach ($priorities as $priority) {
if (vivvo_cache::is_supported(self::$fast_drivers[$priority])) {
$fast = self::$fast_drivers[$priority];
break;
}
}
}
}
return new self(array('slow' => vivvo_cache::get_instance($slow, $slow_params), 'fast' => vivvo_cache::get_instance($fast, $fast_params)));
}
