/**
* Initialize the proxied Cache Engine
*
* @param array $config Array of setting for the engine.
* @return bool True, this engine cannot fail to initialize.
*/
public function init(array $config = [])
{
if (is_object($this->_config)) {
$this->_engine = $this->_config;
return true;
}
$registry = new CacheRegistry();
$this->_engine = $registry->load('spies', $this->_config);
unset($registry);
return true;
}
/**
* Finds and builds the instance of the required engine class.
*
* @param string $name Name of the config array that needs an engine instance built
* @return void
* @throws \InvalidArgumentException When a cache engine cannot be created.
*/
protected static function _buildEngine($name)
{
if (empty(static::$_registry)) {
static::$_registry = new CacheRegistry();
}
if (empty(static::$_config[$name]['className'])) {
throw new InvalidArgumentException(sprintf('The "%s" cache configuration does not exist.', $name));
}
$config = static::$_config[$name];
static::$_registry->load($name, $config);
if (!empty($config['groups'])) {
foreach ($config['groups'] as $group) {
static::$_groups[$group][] = $name;
static::$_groups[$group] = array_unique(static::$_groups[$group]);
sort(static::$_groups[$group]);
}
}
}
