/**
* @test
*/
public function it_wraps_a_message_dispatch_exception_and_tracks_pending_commands()
{
$pendingCommands = ['dispatchMe', 'tellMe'];
$actionEvent = new DefaultActionEvent(MessageBus::EVENT_INVOKE_HANDLER);
$prevException = new \Exception('previous');
$messageDispatchException = MessageDispatchException::failed($actionEvent, $prevException);
$commandDispatchException = CommandDispatchException::wrap($messageDispatchException, $pendingCommands);
$this->assertSame($actionEvent, $commandDispatchException->getFailedDispatchEvent());
$this->assertSame($prevException, $commandDispatchException->getPrevious());
$this->assertSame($pendingCommands, $commandDispatchException->getPendingCommands());
}
/**
* @param mixed $query
* @return Promise
*/
public function dispatch($query)
{
$deferred = new Deferred();
$promise = $deferred->promise();
$actionEvent = $this->getActionEventEmitter()->getNewActionEvent();
$actionEvent->setTarget($this);
$actionEvent->setParam(self::EVENT_PARAM_DEFERRED, $deferred);
try {
$this->initialize($query, $actionEvent);
if ($actionEvent->getParam(self::EVENT_PARAM_MESSAGE_HANDLER) === null) {
$actionEvent->setName(self::EVENT_ROUTE);
$this->trigger($actionEvent);
}
if ($actionEvent->getParam(self::EVENT_PARAM_MESSAGE_HANDLER) === null) {
throw new RuntimeException(sprintf("QueryBus was not able to identify a Finder for query %s", $this->getMessageType($query)));
}
if (is_string($actionEvent->getParam(self::EVENT_PARAM_MESSAGE_HANDLER))) {
$actionEvent->setName(self::EVENT_LOCATE_HANDLER);
$this->trigger($actionEvent);
}
$finder = $actionEvent->getParam(self::EVENT_PARAM_MESSAGE_HANDLER);
if (is_callable($finder)) {
$finder($query, $deferred);
} else {
$actionEvent->setName(self::EVENT_INVOKE_FINDER);
$this->trigger($actionEvent);
}
$this->triggerFinalize($actionEvent);
} catch (\Exception $ex) {
$failedPhase = $actionEvent->getName();
$actionEvent->setParam(self::EVENT_PARAM_EXCEPTION, $ex);
$this->triggerError($actionEvent);
$this->triggerFinalize($actionEvent);
//Check if a listener has removed the exception to indicate that it was able to handle it
if ($ex = $actionEvent->getParam(self::EVENT_PARAM_EXCEPTION)) {
$actionEvent->setName($failedPhase);
$deferred->reject(MessageDispatchException::failed($actionEvent, $ex));
}
}
return $promise;
}
/**
* @param ActionEvent $actionEvent
* @param \Exception $ex
* @throws Exception\MessageDispatchException
*/
protected function handleException(ActionEvent $actionEvent, \Exception $ex)
{
$failedPhase = $actionEvent->getName();
$actionEvent->setParam(self::EVENT_PARAM_EXCEPTION, $ex);
$this->triggerError($actionEvent);
$this->triggerFinalize($actionEvent);
//Check if a listener has removed the exception to indicate that it was able to handle it
if ($ex = $actionEvent->getParam(self::EVENT_PARAM_EXCEPTION)) {
$actionEvent->setName($failedPhase);
throw MessageDispatchException::failed($actionEvent, $ex);
}
}