Java Play! 2 - User management with cookies

Question

I am trying to manage my user via cookie. It's not that easy because there is absolutely no documentation about this topic.

With the help of the sample "zentask" I made this:

session("username", filledForm.field("username").value());

public class Secured{

    public static Session getSession() {
        return Context.current().session();
    }

    public static String getUsername() {
        return getSession().get("username");
    }

    public static boolean isAuthorized() throws Exception {
        String username = getUsername();
        if (username == null)
            return false;
        long userCount = DatabaseConnect.getInstance().getDatastore()
                .createQuery(User.class).field("username").equal(username)
                .countAll();

        if (userCount == 1)
            return true;

        return false;

    }

I am using it like this:

public static Result blank() throws Exception {

        if (Secured.isAuthorized())
            return ok(Secured.getUsername());
        else
            return ok(views.html.login.form.render(loginForm));

    }

Now I have several questions/problems:

1.) Cookie is not dectypted and always looks the same. eg bdb7f592f9d54837995f816498c0474031d44c1a-username%3Akantaki
2.) What does the class Security.Authenticator do?
3.) I think user management through cookies is a very common problem, does play!2.0 offer me a complete solution? Or is there at least some documentation?

Java Play! 2 - User management with cookies

2 Answers