com.epam.ipodromproject.controller.RegistrationController.java Source code

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Here is the source code for com.epam.ipodromproject.controller.RegistrationController.java

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package com.epam.ipodromproject.controller;

import com.epam.ipodromproject.domain.User;
import com.epam.ipodromproject.exceptions.UserAlreadyExistsException;
import com.epam.ipodromproject.forms.RegistrationForm;
import com.epam.ipodromproject.service.UserService;
import javax.validation.Valid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping(value = "registration")
public class RegistrationController {

    @Autowired
    UserService userService;

    @RequestMapping(value = "checkIfUsernameExists", method = RequestMethod.GET)
    @ResponseBody
    public boolean usernameExists(@RequestParam("username") String username) {
        User user = userService.getUserByUsername(username);
        return (user != null);
    }

    @RequestMapping(method = RequestMethod.GET)
    public String goToRegistrationPage(Model model) {
        model.addAttribute("registrationForm", new RegistrationForm());
        return "registration";
    }

    @RequestMapping(method = RequestMethod.POST)
    public String registerUser(@Valid @ModelAttribute("registrationForm") RegistrationForm registrationForm,
            BindingResult result, Model model) {
        if (!registrationForm.passwordsMatch()) {
            model.addAttribute("passwordsDontMatch", true);
            return "registration";
        }
        if (result.hasErrors()) {
            return "registration";
        }
        try {
            userService.registerUser(registrationForm);
        } catch (UserAlreadyExistsException e) {
            model.addAttribute("usernameExists", true);
            return "registration";
        }
        model.addAttribute("message", "registration_was_successfull");
        return "login";
    }

}