public function it_triggers_the_callback_on_failure_when_an_exception_is_raised_during_command_handling(Command $command, CommandCallback $callback, $handlerRegistry, CommandHandler $handler)
{
$handlerRegistry->findCommandHandlerFor($command)->willReturn($handler);
$failureCause = new \Exception();
$handler->handle($command)->willThrow($failureCause);
$callback->onFailure($failureCause)->shouldBeCalledTimes(1);
$callback->onSuccess(Argument::any())->shouldNotBeCalled();
$this->shouldThrow($failureCause)->during('dispatch', [$command, $callback]);
}
/**
* @param Command $command
* @param CommandCallback $callback
*
* @throws \Exception
*/
public function dispatch(Command $command, CommandCallback $callback = null)
{
$handler = $this->handlerRegistry->findCommandHandlerFor($command);
$this->unitOfWork->start();
try {
$result = $handler->handle($command);
if (null !== $callback) {
$callback->onSuccess($result);
}
} catch (\Exception $exception) {
$this->unitOfWork->rollback($exception);
if (null !== $callback) {
$callback->onFailure($exception);
}
// Todo: remove this ?
throw $exception;
}
$this->unitOfWork->commit();
}
/**
* @param Command $command
* @param CommandCallback $callback
*
* @throws \Exception
*/
public function dispatch(Command $command, CommandCallback $callback = null)
{
$command = $this->intercept($command);
$handler = $this->handlerRegistry->findCommandHandlerFor($command);
$this->unitOfWork->start();
$interceptorChain = new DefaultInterceptorChain($command, $this->unitOfWork, $handler, ...$this->handlerInterceptors);
try {
$result = $interceptorChain->proceed();
if (null !== $callback) {
$callback->onSuccess($result);
}
} catch (\Exception $exception) {
$this->unitOfWork->rollback($exception);
if (null !== $callback) {
$callback->onFailure($exception);
}
throw $exception;
}
$this->unitOfWork->commit();
return $result;
}
