Расписание публикации в Reddit с весны

@Entity
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @Column(nullable = false)
    private String username;

    private String accessToken;
    private String refreshToken;
    private Date tokenExpiration;

    private boolean needCaptcha;

    // standard setters and getters
}

@Entity
public class Post {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @Column(nullable = false) private String title;
    @Column(nullable = false) private String subreddit;
    @Column(nullable = false) private String url;
    private boolean sendReplies;

    @Column(nullable = false) private Date submissionDate;

    private boolean isSent;

    private String submissionResponse;

    @ManyToOne
    @JoinColumn(name = "user_id", nullable = false)
    private User user;

    // standard setters and getters
}

public interface UserRepository extends JpaRepository {

    User findByUsername(String username);

    User findByAccessToken(String token);
}

public interface PostRepository extends JpaRepository {

    List findBySubmissionDateBeforeAndIsSent(Date date, boolean isSent);

    List findByUser(User user);
}

public class ScheduledTasks {
    private final Logger logger = LoggerFactory.getLogger(getClass());

    private OAuth2RestTemplate redditRestTemplate;

    @Autowired
    private PostRepository postReopsitory;

    @Scheduled(fixedRate = 1 * 60 * 1000)
    public void reportCurrentTime() {
        List posts =
          postReopsitory.findBySubmissionDateBeforeAndIsSent(new Date(), false);
        for (Post post : posts) {
            submitPost(post);
        }
    }

    private void submitPost(Post post) {
        try {
            User user = post.getUser();
            DefaultOAuth2AccessToken token =
              new DefaultOAuth2AccessToken(user.getAccessToken());
            token.setRefreshToken(new DefaultOAuth2RefreshToken((user.getRefreshToken())));
            token.setExpiration(user.getTokenExpiration());
            redditRestTemplate.getOAuth2ClientContext().setAccessToken(token);

            UsernamePasswordAuthenticationToken userAuthToken =
              new UsernamePasswordAuthenticationToken(
              user.getUsername(), token.getValue(),
              Arrays.asList(new SimpleGrantedAuthority("ROLE_USER")));
            SecurityContextHolder.getContext().setAuthentication(userAuthToken);

            MultiValueMap param = new LinkedMultiValueMap();
            param.add("api_type", "json");
            param.add("kind", "link");
            param.add("resubmit", "true");
            param.add("then", "comments");
            param.add("title", post.getTitle());
            param.add("sr", post.getSubreddit());
            param.add("url", post.getUrl());
            if (post.isSendReplies()) {
                param.add(RedditApiConstants.SENDREPLIES, "true");
            }

            JsonNode node = redditRestTemplate.postForObject(
              "https://oauth.reddit.com/api/submit", param, JsonNode.class);
            JsonNode errorNode = node.get("json").get("errors").get(0);
            if (errorNode == null) {
                post.setSent(true);
                post.setSubmissionResponse("Successfully sent");
                postReopsitory.save(post);
            } else {
                post.setSubmissionResponse(errorNode.toString());
                postReopsitory.save(post);
            }
        } catch (Exception e) {
            logger.error("Error occurred", e);
        }
    }
}

@RequestMapping("/login")
public String redditLogin() {
    JsonNode node = redditRestTemplate.getForObject(
      "https://oauth.reddit.com/api/v1/me", JsonNode.class);
    loadAuthentication(node.get("name").asText(), redditRestTemplate.getAccessToken());
    return "redirect:home.html";
}

private void loadAuthentication(String name, OAuth2AccessToken token) {
    User user = userReopsitory.findByUsername(name);
    if (user == null) {
        user = new User();
        user.setUsername(name);
    }

    if (needsCaptcha().equalsIgnoreCase("true")) {
        user.setNeedCaptcha(true);
    } else {
        user.setNeedCaptcha(false);
    }

    user.setAccessToken(token.getValue());
    user.setRefreshToken(token.getRefreshToken().getValue());
    user.setTokenExpiration(token.getExpiration());
    userReopsitory.save(user);

    UsernamePasswordAuthenticationToken auth =
      new UsernamePasswordAuthenticationToken(user, token.getValue(),
      Arrays.asList(new SimpleGrantedAuthority("ROLE_USER")));
    SecurityContextHolder.getContext().setAuthentication(auth);
}

@RequestMapping("/postSchedule")
public String showSchedulePostForm(Model model) {
    boolean isCaptchaNeeded = getCurrentUser().isCaptchaNeeded();
    if (isCaptchaNeeded) {
        model.addAttribute("msg", "Sorry, You do not have enought karma");
        return "submissionResponse";
    }
    return "schedulePostForm";
}

private User getCurrentUser() {
    return (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
}

    
    
    
    
    
    Schedule

@RequestMapping(value = "/api/scheduledPosts", method = RequestMethod.POST)
@ResponseBody
public Post schedule(@RequestBody Post post) {
    if (submissionDate.before(new Date())) {
        throw new InvalidDateException("Scheduling Date already passed");
    }

    post.setUser(getCurrentUser());
    post.setSubmissionResponse("Not sent yet");
    return postReopsitory.save(post);
}

@RequestMapping(value = "/api/scheduledPosts")
@ResponseBody
public List getScheduledPosts() {
    User user = getCurrentUser();
    return postReopsitory.findByUser(user);
}

    
Post title
Submission Date

@RequestMapping(value = "/editPost/{id}", method = RequestMethod.GET)
public String showEditPostForm() {
    return "editPostForm";
}

    
    
    
    
    
    
    Save Changes

@RequestMapping(value = "/api/scheduledPosts/{id}", method = RequestMethod.GET)
@ResponseBody
public Post getPost(@PathVariable("id") Long id) {
    return postReopsitory.findOne(id);
}

@RequestMapping(value = "/api/scheduledPosts/{id}", method = RequestMethod.PUT)
@ResponseStatus(HttpStatus.OK)
public void updatePost(@RequestBody Post post, @PathVariable Long id) {
    if (post.getSubmissionDate().before(new Date())) {
        throw new InvalidDateException("Scheduling Date already passed");
    }
    post.setUser(getCurrentUser());
    postReopsitory.save(post);
}

@RequestMapping(value = "/api/scheduledPosts/{id}", method = RequestMethod.DELETE)
@ResponseStatus(HttpStatus.OK)
public void deletePost(@PathVariable("id") Long id) {
    postReopsitory.delete(id);
}

Delete