RegisterUserController.java

package edu.asu.spring.quadriga.web.manageusers;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import edu.asu.spring.quadriga.exceptions.QuadrigaNotificationException;
import edu.asu.spring.quadriga.exceptions.QuadrigaStorageException;
import edu.asu.spring.quadriga.exceptions.UsernameExistsException;
import edu.asu.spring.quadriga.service.IUserManager;
import edu.asu.spring.quadriga.web.manageusers.beans.AccountRequest;
import edu.asu.spring.quadriga.web.manageusers.beans.NewUserAccountValidator;

@Controller
public class RegisterUserController {

    @Autowired
    private IUserManager usermanager;

    @InitBinder("accountRequest")
    protected void initBinder(WebDataBinder binder) {
        binder.setValidator(new NewUserAccountValidator());
    }

    @RequestMapping(value = "register")
    public String initRegisterPage(ModelMap model) {
        model.addAttribute("request", new AccountRequest());
        return "register";
    }

    @RequestMapping(value = "register-user")
    public String registerUser(ModelMap model, @Valid @ModelAttribute AccountRequest request, BindingResult result, RedirectAttributes redirectAttrs)
            throws QuadrigaStorageException, QuadrigaNotificationException {
        if (result.hasErrors()) {
            model.addAttribute("request", request);
            model.addAttribute("errors", result);
            return "register";
        }

        boolean success = false;
        String username = request.getUsername();
        try {
            request.setUsername(username.toLowerCase());
            success = usermanager.addNewUser(request);
        } catch (UsernameExistsException e) {
            model.addAttribute("errormsg_username_in_use", "Username already in use.");
            request.setUsername(username);
            request.setPassword("");
            request.setRepeatedPassword("");
            model.addAttribute("request", request);
            return "register";
        }

        if (!success) {
            model.addAttribute("errormsg_failure", "Sorry, user could not be added.");
            request.setPassword("");
            request.setRepeatedPassword("");
            model.addAttribute("request", request);
            return "register";
        }

        redirectAttrs.addFlashAttribute("successmsg", "Your account has been created! An administrator will review the account and approve it. You will get an email once your account has been reviewed.");
        return "redirect:/login";
    }
}