Application.java

package controllers;

import models.users.User;
import play.data.Form;
import play.mvc.Controller;
import play.mvc.Result;
import views.html.login;

public class Application extends Controller {

    // Authentication form data
    public static class Login {

        public String email;
        public String password;

        public String validate() {
            System.out.println(email);
            System.out.println(password);
            if(User.authenticate(email, password) == null) {
                return "Invalid user or password";
            }
            return null;
        }

        @Override
        public String toString() {
            return "Login [email=" + email + ", password=" + password + "]";
        }
    }

    public static Result login() {
        return ok(
            login.render(form(Login.class))
        );
    }

    public static Result logout() {
        session().clear();
        flash("success", "You've been logged out");
        return redirect(
            routes.Application.login()
        );
    }

    public static Result authenticate() {
        Form<Login> loginForm = form(Login.class).bindFromRequest();
        System.out.println("Form<Login>: " + loginForm);
        System.out.println("Login: " + loginForm.get());
        if(loginForm.hasErrors()) {
            return badRequest(login.render(loginForm));
        } else {
            return TODO;
        }
    }
}