/**
* get Redis Connection instance
*
* @param string|array $config the connect name
*
* @throws \RedisException
* @return \Flywheel\Redis\Connection
*/
public static function getConnection($config = null)
{
if (null == $config || is_string($config)) {
$c = ConfigHandler::get('redis');
if (null == $config || !isset($c[$config])) {
$config = $c['__default__'];
}
if (!isset($c[$config])) {
throw new \RedisException("Connection config not found with '{$config}'");
}
$config = $c[$config];
}
return Connection::getInstance($config['dsn'], isset($config['option']) && $config['option'] ? $config['option'] : array());
}
