juplo.de Git - examples/facebook-app/blob - src/main/java/de/juplo/yourshouter/HomeController.java

   1 package de.juplo.yourshouter;
   2
   3 import javax.inject.Inject;
   4 import org.slf4j.Logger;
   5 import org.slf4j.LoggerFactory;
   6
   7 import org.springframework.social.facebook.api.Facebook;
   8 import org.springframework.social.facebook.api.User;
   9 import org.springframework.stereotype.Controller;
  10 import org.springframework.ui.Model;
  11 import org.springframework.web.bind.annotation.RequestMapping;
  12 import org.springframework.web.bind.annotation.RequestMethod;
  13
  14
  15 /**
  16  * Controller, that handles the welcome-page.
  17  *
  18  * @author Kai Moritz
  19  */
  20 @Controller
  21 @RequestMapping("/")
  22 public class HomeController
  23 {
  24   private final static Logger LOG = LoggerFactory.getLogger(HomeController.class);
  25
  26
  27   private final Facebook facebook;
  28
  29
  30   @Inject
  31   public HomeController(Facebook facebook)
  32   {
  33     this.facebook = facebook;
  34   }
  35
  36
  37   @RequestMapping(method = RequestMethod.GET)
  38   public String home(Model model)
  39   {
  40     boolean authorized = true;
  41     try
  42     {
  43       authorized = facebook.isAuthorized();
  44     }
  45     catch (NullPointerException e)
  46     {
  47       LOG.debug("NPE while acessing Facebook: {}", e);
  48       authorized = false;
  49     }
  50     if (!authorized)
  51     {
  52       LOG.info("no authorized user, redirecting to /connect/facebook");
  53       return "redirect:/connect/facebook";
  54     }
  55
  56     User user = facebook.userOperations().getUserProfile();
  57     LOG.info("authorized user {}, id: {}", user.getName(), user.getId());
  58     model.addAttribute("user", user);
  59     return "home";
  60   }
  61 }