/**
* Run the RPC and return its output
*
* @param RPC $rpc
* @return array
* @throws Exception when parameters are not valid
*/
protected function dispatchRPC(RPC $rpc)
{
$response = array('type' => 'rpc', 'tid' => $rpc->getId(), 'action' => $rpc->getAction(), 'method' => $rpc->getMethod(), 'result' => null);
if (!$this->api->hasAction($rpc->getAction())) {
throw new Exception('Action ' . $rpc->getAction() . ' does not exist');
}
$action = $this->api->getAction($rpc->getAction());
// Verify the method exists
if (!$action->hasMethod($rpc->getMethod())) {
throw new Exception('Method ' . $rpc->getMethod() . ' does not exist');
}
// Verify that we received enough parameters to call the method
if ($action->getMethod($rpc->getMethod())->getNumberOfParameters() > count($rpc->getData())) {
throw new Exception('Invalid parameter count');
}
$object = $this->manager->get($action->getObjectName());
// Trigger a RPC dispatch event
$eventVars = array('object' => $object, 'rpc' => $rpc);
$result = $this->getEventManager()->trigger(DirectEvent::EVENT_DISPATCH_RPC, $this, $eventVars);
if ($result->stopped()) {
return $result->last();
}
try {
// Fetch result from the function call
$response['result'] = call_user_func_array(array($object, $rpc->getMethod()), $rpc->getData());
} catch (Exception $e) {
$error = array('type' => 'exception', 'message' => 'An unhandled exception occured', 'where' => '');
if ($this->isDebugMode()) {
$error['message'] = $e->getMessage();
$error['where'] = $e->getTraceAsString();
}
$response = $error;
}
return $response;
}
/**
* @param array $apiConfig
* @return Api
*/
public function buildApi(array $apiConfig)
{
$actions = array();
// legacy code, probably to be removed
if (isset($apiConfig['modules']) && is_array($apiConfig['modules'])) {
$actions = ArrayUtils::merge($actions, $this->buildDirectoryApi($apiConfig['modules']));
}
if (isset($apiConfig['services']) && is_array($apiConfig['services'])) {
$actions = ArrayUtils::merge($actions, $this->buildServiceApi($apiConfig['services']));
}
$api = new Api();
/* @var $actions \KJSencha\Direct\Remoting\Api\Object\Action[] */
foreach ($actions as $name => $action) {
$api->addAction($name, $action);
}
return $api;
}