/**
* This method return a singleton instance of __HistoryManager instance
*
* @return __HistoryManager
*/
public static function &getInstance()
{
if (self::$_instance == null) {
// Use "Lazy initialization"
self::$_instance = new __HistoryManager();
}
return self::$_instance;
}
/**
* This method dispatch the current request
*
* @param __IRequest &$request The request to process to
* @param __IResponse &$response The instance to set the response to
*
*/
public function processRequest(__IRequest &$request, __IResponse &$response)
{
//resolve action identity from request
$action_identity = $request->getActionIdentity();
//resolve the action controller associated to the given action identity
$controller_definition = __ActionControllerResolver::getInstance()->getActionControllerDefinition($action_identity->getControllerCode());
//check if action controller is requestable
if ($controller_definition instanceof __ActionControllerDefinition && $controller_definition->isRequestable()) {
__HistoryManager::getInstance()->addRequest($request);
//last, execute the action controller
__ActionDispatcher::getInstance()->dispatch($action_identity);
} else {
throw __ExceptionFactory::getInstance()->createException('ERR_ACTION_NON_REQUESTABLE');
}
}
