This is a part of an online Codename One course published around 2017 see it all for free at https://debugagent.com/series/cn1

1. Creating a Facebook Clone - Part XXIII

2. @Service
public class NotificationService {
@Autowired
private NotificationRepository notifications;
public void sendNotification(User u, NotificationDAO nd) {
Notification n = new Notification();
n.setDate(System.currentTimeMillis());
n.setReaction(nd.getReaction());
n.setReactionColor(nd.getReactionColor());
n.setText(nd.getText());
n.setUser(u);
n.setWasRead(nd.isWasRead());
notifications.save(n);
}
public List<NotificationDAO> listNotifications(String authtoken,
int page, int amount) {
Page<Notification> notificationsPage = notifications.
findNotificationsForUser(
authtoken, PageRequest.of(page, amount,
NotificationService

3. @Service
public class NotificationService {
@Autowired
private NotificationRepository notifications;
public void sendNotification(User u, NotificationDAO nd) {
Notification n = new Notification();
n.setDate(System.currentTimeMillis());
n.setReaction(nd.getReaction());
n.setReactionColor(nd.getReactionColor());
n.setText(nd.getText());
n.setUser(u);
n.setWasRead(nd.isWasRead());
notifications.save(n);
}
public List<NotificationDAO> listNotifications(String authtoken,
int page, int amount) {
Page<Notification> notificationsPage = notifications.
findNotificationsForUser(
authtoken, PageRequest.of(page, amount,
NotificationService

4. @Service
public class NotificationService {
@Autowired
private NotificationRepository notifications;
public void sendNotification(User u, NotificationDAO nd) {
Notification n = new Notification();
n.setDate(System.currentTimeMillis());
n.setReaction(nd.getReaction());
n.setReactionColor(nd.getReactionColor());
n.setText(nd.getText());
n.setUser(u);
n.setWasRead(nd.isWasRead());
notifications.save(n);
}
public List<NotificationDAO> listNotifications(String authtoken,
int page, int amount) {
Page<Notification> notificationsPage = notifications.
findNotificationsForUser(
authtoken, PageRequest.of(page, amount,
NotificationService

5. public void sendNotification(User u, NotificationDAO nd) {
Notification n = new Notification();
n.setDate(System.currentTimeMillis());
n.setReaction(nd.getReaction());
n.setReactionColor(nd.getReactionColor());
n.setText(nd.getText());
n.setUser(u);
n.setWasRead(nd.isWasRead());
notifications.save(n);
}
public List<NotificationDAO> listNotifications(String authtoken,
int page, int amount) {
Page<Notification> notificationsPage = notifications.
findNotificationsForUser(
authtoken, PageRequest.of(page, amount,
Sort.by(Sort.Direction.DESC, "date")));
List<NotificationDAO> resp = new ArrayList<>();
for(Notification c : notificationsPage) {
resp.add(c.getDAO());
}
return resp;
}
}
NotificationService

6. public void sendNotification(User u, NotificationDAO nd) {
Notification n = new Notification();
n.setDate(System.currentTimeMillis());
n.setReaction(nd.getReaction());
n.setReactionColor(nd.getReactionColor());
n.setText(nd.getText());
n.setUser(u);
n.setWasRead(nd.isWasRead());
notifications.save(n);
}
public List<NotificationDAO> listNotifications(String authtoken,
int page, int amount) {
Page<Notification> notificationsPage = notifications.
findNotificationsForUser(
authtoken, PageRequest.of(page, amount,
Sort.by(Sort.Direction.DESC, "date")));
List<NotificationDAO> resp = new ArrayList<>();
for(Notification c : notificationsPage) {
resp.add(c.getDAO());
}
return resp;
}
}
NotificationService

7. public void sendNotification(User u, NotificationDAO nd) {
Notification n = new Notification();
n.setDate(System.currentTimeMillis());
n.setReaction(nd.getReaction());
n.setReactionColor(nd.getReactionColor());
n.setText(nd.getText());
n.setUser(u);
n.setWasRead(nd.isWasRead());
notifications.save(n);
}
public List<NotificationDAO> listNotifications(String authtoken,
int page, int amount) {
Page<Notification> notificationsPage = notifications.
findNotificationsForUser(
authtoken, PageRequest.of(page, amount,
Sort.by(Sort.Direction.DESC, "date")));
List<NotificationDAO> resp = new ArrayList<>();
for(Notification c : notificationsPage) {
resp.add(c.getDAO());
}
return resp;
}
}
NotificationService

8. @Service
public class MediaService {
@Autowired
private MediaRepository media;
@Autowired
private UserRepository user;
public String storeMedia(String authtoken, byte[] data,
String mimeType, String role, String visibility,
String filename) {
User u = user.findByAuthtoken(authtoken).get(0);
Media m = new Media();
m.setData(data);
m.setOwner(u);
m.setDate(System.currentTimeMillis());
m.setFilename(filename);
m.setMimeType(mimeType);
m.setRole(role);
MediaService

9. @Service
public class MediaService {
@Autowired
private MediaRepository media;
@Autowired
private UserRepository user;
public String storeMedia(String authtoken, byte[] data,
String mimeType, String role, String visibility,
String filename) {
User u = user.findByAuthtoken(authtoken).get(0);
Media m = new Media();
m.setData(data);
m.setOwner(u);
m.setDate(System.currentTimeMillis());
m.setFilename(filename);
m.setMimeType(mimeType);
m.setRole(role);
MediaService

10. @Service
public class MediaService {
@Autowired
private MediaRepository media;
@Autowired
private UserRepository user;
public String storeMedia(String authtoken, byte[] data,
String mimeType, String role, String visibility,
String filename) {
User u = user.findByAuthtoken(authtoken).get(0);
Media m = new Media();
m.setData(data);
m.setOwner(u);
m.setDate(System.currentTimeMillis());
m.setFilename(filename);
m.setMimeType(mimeType);
m.setRole(role);
MediaService

11. private MediaRepository media;
@Autowired
private UserRepository user;
public String storeMedia(String authtoken, byte[] data,
String mimeType, String role, String visibility,
String filename) {
User u = user.findByAuthtoken(authtoken).get(0);
Media m = new Media();
m.setData(data);
m.setOwner(u);
m.setDate(System.currentTimeMillis());
m.setFilename(filename);
m.setMimeType(mimeType);
m.setRole(role);
m.setVisibility(visibility);
media.save(m);
return m.getId();
}
public MediaDAO getPublicMedia(String id) throws PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
MediaService

12. m.setVisibility(visibility);
media.save(m);
return m.getId();
}
public MediaDAO getPublicMedia(String id) throws PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
public MediaDAO getMedia(String authToken, String id) throws
PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
if(!m.getOwner().getAuthtoken().equals(authToken)) {
if(!m.getOwner().isFriendByToken(authToken)) {
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
MediaService

13. return m.getId();
}
public MediaDAO getPublicMedia(String id) throws PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
public MediaDAO getMedia(String authToken, String id) throws
PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
if(!m.getOwner().getAuthtoken().equals(authToken)) {
if(!m.getOwner().isFriendByToken(authToken)) {
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
}
MediaService
public enum VisibilityConstants {
PUBLIC("public"), FRIENDS("friends");
private String str;
private VisibilityConstants(String str) {
this.str = str;
}
public String asString() {
return str;
}
public static boolean isPublic(String s) {
return s == null || s.equalsIgnoreCase(PUBLIC.asString());
}
}

14. return m.getId();
}
public MediaDAO getPublicMedia(String id) throws PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
public MediaDAO getMedia(String authToken, String id) throws
PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
if(!m.getOwner().getAuthtoken().equals(authToken)) {
if(!m.getOwner().isFriendByToken(authToken)) {
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
}
MediaService
public class PermissionException extends Exception {
public PermissionException(String message) {
super(message);
}
}

15. public MediaDAO getPublicMedia(String id) throws PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
public MediaDAO getMedia(String authToken, String id) throws
PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
if(!m.getOwner().getAuthtoken().equals(authToken)) {
if(!m.getOwner().isFriendByToken(authToken)) {
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
}
return m.getDAO();
}
}
MediaService

16. public MediaDAO getPublicMedia(String id) throws PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
public MediaDAO getMedia(String authToken, String id) throws
PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
if(!m.getOwner().getAuthtoken().equals(authToken)) {
if(!m.getOwner().isFriendByToken(authToken)) {
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
}
return m.getDAO();
}
}
MediaService

17. public MediaDAO getPublicMedia(String id) throws PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
public MediaDAO getMedia(String authToken, String id) throws
PermissionException {
Media m = media.findById(id).get();
if(VisibilityConstants.isPublic(m.getVisibility())) {
return m.getDAO();
}
if(!m.getOwner().getAuthtoken().equals(authToken)) {
if(!m.getOwner().isFriendByToken(authToken)) {
throw new PermissionException(
"Media item belongs to a user that isn't a friend");
}
}
return m.getDAO();
}
}
MediaService