Command Handling Return values

[Manel Jové]

Hi,
I am working in a flex application using spring,hibernate and axon. In
the logon process I want to return some data: the aggregate id, a
authenticate string code and some other data like user state, passwrod
expiring days, etc.

I've decide to use a command handler cause this process changes the
state of the server, but i have problems receiving the response in
flex. I'm receiving a void ProxyObject.

Where am i wrong? Anyone can help me? Can i found any example
returning data to flex client?

Thanks!!

Code:

public class UsuariCommandHandler {
private Repository<Usuari> repository;
private UsuariRepository usuariRepository;

@CommandHandler
public UsuariAuthenticatedResult
handleAuthenticateUser(UsuariAuthenticateCommand command) throws
DeskException {
Assert.notNull(command.getIdent(),
"usuari.authenticate.ident.null");
Assert.notNull(command.getPassword(),
"usuari.authenticate.password.null");

try {
Usuari usuari;

String usuariId = command.getUsuariId();
if (usuariId == null) {
usuariId = UUID.randomUUID().toString();

UsuariEntry account =
usuariRepository.getByIdent(command.getIdent());
usuari = new Usuari(new
StringAggregateIdentifier(usuariId),account);
usuari.authenticate(command.getPassword());
repository.add(usuari);
} else {
usuari = repository.load(new
StringAggregateIdentifier(usuariId));
}

String code = usuari.authorize(command.getToken());

UsuariAuthenticatedResult result = new
UsuariAuthenticatedResult(usuariId,code,usuari.getUsuariState(),usuari.daysToExpirePassword());
return result;
} catch (NoResultException e) {
throw new UsuariException(e);
}
}

@Autowired
public void setRepository(Repository<Usuari> repository) {
this.repository = repository;
}

@Autowired
public void setUsuariRepository(UsuariRepository userRepository) {
this.usuariRepository = userRepository;
}
}

Flex:
package commands.system
{
import commands.BaseController;

import model.system.UserAuthenticateEvent;

import mx.messaging.messages.AcknowledgeMessage;
import mx.rpc.AsyncToken;
import mx.rpc.events.FaultEvent;

public class LoginUserController extends BaseController {

public function LoginUserController() {
super();
}

public function execute(event:UserAuthenticateEvent):AsyncToken {
var command:UsuariAuthenticateCommand = new
UsuariAuthenticateCommand();
command.ident = event.user.ident;
command.password = event.user.password;

return commandReceiver.sendCommand(command);
}

public function result(result:*):void {
return;
}
}
}

[Jettro Coenradie]

The address book sample application contains a complete Flex sample. It might be a bit dated, since I did not upgrade any of the flex code for at least e year. But it did work.

https://github.com/AxonFramework/Addressbook-Sample

regards Jettro

--
Jettro Coenradie
http://www.gridshore.nl

[Manel Jové]

Thanks Jettro,
I'm learning with your Addredbook app, but i've haven't found any case
that can help me.

May be i have to use entityManager like you use in
JpaContactNameRepository.claimContactName.

My apologies. I'm training to undesrtand how work all togheter.

Thanks a lot.
Regards,
Manel



On Mar 11, 11:47 am, Jettro Coenradie <jettro.coenra...@gridshore.nl>
wrote:

[Jettro Coenradie]

You can check the CommandReceiverImpl class, the method

        FutureCallback callback = new FutureCallback();

        commandBus.dispatch(new GenericCommandMessage<Object>(command), callback);

        try {

            return callback.get();

        } catch (Exception e) {

            throw new RuntimeException(e);

        }

Shows the mechanism to use a Future. The most important class here is the FutureCallback.

Hope that helps,

regards Jettro