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 XLV

2. @Service
public class NotificationService {
private static final String PUSHURL =
"https://push.codenameone.com/push/push";
private final static Logger logger = LoggerFactory.
getLogger(NotificationService.class);
@Autowired
private NotificationRepository notifications;
@Autowired
private APIKeys keys;
@Autowired
private UserRepository users;
public void updatePushKey(String auth, String key) {
User u = users.findByAuthtoken(auth).get(0);
u.setPushKey(key);
users.save(u);
}
NotificationService

3. @Service
public class NotificationService {
private static final String PUSHURL =
"https://push.codenameone.com/push/push";
private final static Logger logger = LoggerFactory.
getLogger(NotificationService.class);
@Autowired
private NotificationRepository notifications;
@Autowired
private APIKeys keys;
@Autowired
private UserRepository users;
public void updatePushKey(String auth, String key) {
User u = users.findByAuthtoken(auth).get(0);
u.setPushKey(key);
users.save(u);
}
NotificationService

4. @Service
public class NotificationService {
private static final String PUSHURL =
"https://push.codenameone.com/push/push";
private final static Logger logger = LoggerFactory.
getLogger(NotificationService.class);
@Autowired
private NotificationRepository notifications;
@Autowired
private APIKeys keys;
@Autowired
private UserRepository users;
public void updatePushKey(String auth, String key) {
User u = users.findByAuthtoken(auth).get(0);
u.setPushKey(key);
users.save(u);
}
NotificationService

5. @Autowired
private NotificationRepository notifications;
@Autowired
private APIKeys keys;
@Autowired
private UserRepository users;
public void updatePushKey(String auth, String key) {
User u = users.findByAuthtoken(auth).get(0);
u.setPushKey(key);
users.save(u);
}
public void removePushKey(String key) {
List<User> userList = users.findByPushKey(key);
if(!userList.isEmpty()) {
User u = userList.get(0);
u.setPushKey(null);
users.save(u);
}
}
NotificationService

6. @Autowired
private NotificationRepository notifications;
@Autowired
private APIKeys keys;
@Autowired
private UserRepository users;
public void updatePushKey(String auth, String key) {
User u = users.findByAuthtoken(auth).get(0);
u.setPushKey(key);
users.save(u);
}
public void removePushKey(String key) {
List<User> userList = users.findByPushKey(key);
if(!userList.isEmpty()) {
User u = userList.get(0);
u.setPushKey(null);
users.save(u);
}
}
NotificationService

7. @Autowired
private NotificationRepository notifications;
@Autowired
private APIKeys keys;
@Autowired
private UserRepository users;
public void updatePushKey(String auth, String key) {
User u = users.findByAuthtoken(auth).get(0);
u.setPushKey(key);
users.save(u);
}
public void removePushKey(String key) {
List<User> userList = users.findByPushKey(key);
if(!userList.isEmpty()) {
User u = userList.get(0);
u.setPushKey(null);
users.save(u);
}
}
NotificationService

8. users.save(u);
}
}
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);
if(u.getPushKey() != null) {
sendPushNotification(u.getPushKey(), nd.getText(), 1);
}
}
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")));
NotificationService

9. }
return resp;
}
private String sendPushImpl(String deviceId,
String messageBody, int type) throws IOException {
HttpURLConnection connection = (HttpURLConnection)
new URL(PUSHURL).openConnection();
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
String cert;
String pass;
boolean production = keys.get("push.itunes_production",
"false").equals("true");
if(production) {
cert = keys.get("push.itunes_prodcert");
pass = keys.get("push.itunes_prodpass");
} else {
cert = keys.get("push.itunes_devcert");
pass = keys.get("push.itunes_devpass");
}
String query = "token=" + keys.get("push.token") +
NotificationService

10. }
return resp;
}
private String sendPushImpl(String deviceId,
String messageBody, int type) throws IOException {
HttpURLConnection connection = (HttpURLConnection)
new URL(PUSHURL).openConnection();
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
String cert;
String pass;
boolean production = keys.get("push.itunes_production",
"false").equals("true");
if(production) {
cert = keys.get("push.itunes_prodcert");
pass = keys.get("push.itunes_prodpass");
} else {
cert = keys.get("push.itunes_devcert");
pass = keys.get("push.itunes_devpass");
}
String query = "token=" + keys.get("push.token") +
NotificationService

11. }
return resp;
}
private String sendPushImpl(String deviceId,
String messageBody, int type) throws IOException {
HttpURLConnection connection = (HttpURLConnection)
new URL(PUSHURL).openConnection();
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
String cert;
String pass;
boolean production = keys.get("push.itunes_production",
"false").equals("true");
if(production) {
cert = keys.get("push.itunes_prodcert");
pass = keys.get("push.itunes_prodpass");
} else {
cert = keys.get("push.itunes_devcert");
pass = keys.get("push.itunes_devpass");
}
String query = "token=" + keys.get("push.token") +
NotificationService

12. connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
String cert;
String pass;
boolean production = keys.get("push.itunes_production",
"false").equals("true");
if(production) {
cert = keys.get("push.itunes_prodcert");
pass = keys.get("push.itunes_prodpass");
} else {
cert = keys.get("push.itunes_devcert");
pass = keys.get("push.itunes_devpass");
}
String query = "token=" + keys.get("push.token") +
"&device=" + URLEncoder.encode(deviceId, "UTF-8") +
"&type=" + type + "&auth=" +
URLEncoder.encode(keys.get("push.gcm_key"), "UTF-8") +
"&certPassword=" + URLEncoder.encode(pass, "UTF-8") +
"&cert=" + URLEncoder.encode(cert, "UTF-8") +
"&body=" + URLEncoder.encode(messageBody, "UTF-8") +
"&production=" + production;
try (OutputStream output = connection.getOutputStream()) {
output.write(query.getBytes("UTF-8"));
NotificationService

13. if(production) {
cert = keys.get("push.itunes_prodcert");
pass = keys.get("push.itunes_prodpass");
} else {
cert = keys.get("push.itunes_devcert");
pass = keys.get("push.itunes_devpass");
}
String query = "token=" + keys.get("push.token") +
"&device=" + URLEncoder.encode(deviceId, "UTF-8") +
"&type=" + type + "&auth=" +
URLEncoder.encode(keys.get("push.gcm_key"), "UTF-8") +
"&certPassword=" + URLEncoder.encode(pass, "UTF-8") +
"&cert=" + URLEncoder.encode(cert, "UTF-8") +
"&body=" + URLEncoder.encode(messageBody, "UTF-8") +
"&production=" + production;
try (OutputStream output = connection.getOutputStream()) {
output.write(query.getBytes("UTF-8"));
}
int c = connection.getResponseCode();
if(c == 200) {
try (InputStream i = connection.getInputStream()) {
return new String(readInputStream(i));
}
}
NotificationService

14. }
String query = "token=" + keys.get("push.token") +
"&device=" + URLEncoder.encode(deviceId, "UTF-8") +
"&type=" + type + "&auth=" +
URLEncoder.encode(keys.get("push.gcm_key"), "UTF-8") +
"&certPassword=" + URLEncoder.encode(pass, "UTF-8") +
"&cert=" + URLEncoder.encode(cert, "UTF-8") +
"&body=" + URLEncoder.encode(messageBody, "UTF-8") +
"&production=" + production;
try (OutputStream output = connection.getOutputStream()) {
output.write(query.getBytes("UTF-8"));
}
int c = connection.getResponseCode();
if(c == 200) {
try (InputStream i = connection.getInputStream()) {
return new String(readInputStream(i));
}
}
logger.error("Error response code from push server: " + c);
return null;
}
@Async
public void sendPushNotification(String deviceId,
NotificationService

15. }
String query = "token=" + keys.get("push.token") +
"&device=" + URLEncoder.encode(deviceId, "UTF-8") +
"&type=" + type + "&auth=" +
URLEncoder.encode(keys.get("push.gcm_key"), "UTF-8") +
"&certPassword=" + URLEncoder.encode(pass, "UTF-8") +
"&cert=" + URLEncoder.encode(cert, "UTF-8") +
"&body=" + URLEncoder.encode(messageBody, "UTF-8") +
"&production=" + production;
try (OutputStream output = connection.getOutputStream()) {
output.write(query.getBytes("UTF-8"));
}
int c = connection.getResponseCode();
if(c == 200) {
try (InputStream i = connection.getInputStream()) {
return new String(readInputStream(i));
}
}
logger.error("Error response code from push server: " + c);
return null;
}
@Async
public void sendPushNotification(String deviceId,
NotificationService

16. logger.error("Error response code from push server: " + c);
return null;
}
@Async
public void sendPushNotification(String deviceId,
String messageBody, int type) {
try {
String json = sendPushImpl(deviceId, messageBody, type);
if(json != null) {
JsonParser parser = JsonParserFactory.getJsonParser();
if(json.startsWith("[")) {
List<Object> lst = parser.parseList(json);
for(Object o : lst) {
if(o instanceof Map) {
Map entry = (Map)o;
String status = (String)entry.get("status");
if(status != null) {
if(status.equals("error") ||
status.equals("inactive")) {
removePushKey((String)
entry.get("id"));
}
}
NotificationService

17. logger.error("Error response code from push server: " + c);
return null;
}
@Async
public void sendPushNotification(String deviceId,
String messageBody, int type) {
try {
String json = sendPushImpl(deviceId, messageBody, type);
if(json != null) {
JsonParser parser = JsonParserFactory.getJsonParser();
if(json.startsWith("[")) {
List<Object> lst = parser.parseList(json);
for(Object o : lst) {
if(o instanceof Map) {
Map entry = (Map)o;
String status = (String)entry.get("status");
if(status != null) {
if(status.equals("error") ||
status.equals("inactive")) {
removePushKey((String)
entry.get("id"));
}
}
NotificationService

18. logger.error("Error response code from push server: " + c);
return null;
}
@Async
public void sendPushNotification(String deviceId,
String messageBody, int type) {
try {
String json = sendPushImpl(deviceId, messageBody, type);
if(json != null) {
JsonParser parser = JsonParserFactory.getJsonParser();
if(json.startsWith("[")) {
List<Object> lst = parser.parseList(json);
for(Object o : lst) {
if(o instanceof Map) {
Map entry = (Map)o;
String status = (String)entry.get("status");
if(status != null) {
if(status.equals("error") ||
status.equals("inactive")) {
removePushKey((String)
entry.get("id"));
}
}
NotificationService

19. logger.error("Error response code from push server: " + c);
return null;
}
@Async
public void sendPushNotification(String deviceId,
String messageBody, int type) {
try {
String json = sendPushImpl(deviceId, messageBody, type);
if(json != null) {
JsonParser parser = JsonParserFactory.getJsonParser();
if(json.startsWith("[")) {
List<Object> lst = parser.parseList(json);
for(Object o : lst) {
if(o instanceof Map) {
Map entry = (Map)o;
String status = (String)entry.get("status");
if(status != null) {
if(status.equals("error") ||
status.equals("inactive")) {
removePushKey((String)
entry.get("id"));
}
}
NotificationService

20. @Async
public void sendPushNotification(String deviceId,
String messageBody, int type) {
try {
String json = sendPushImpl(deviceId, messageBody, type);
if(json != null) {
JsonParser parser = JsonParserFactory.getJsonParser();
if(json.startsWith("[")) {
List<Object> lst = parser.parseList(json);
for(Object o : lst) {
if(o instanceof Map) {
Map entry = (Map)o;
String status = (String)entry.get("status");
if(status != null) {
if(status.equals("error") ||
status.equals("inactive")) {
removePushKey((String)
entry.get("id"));
}
}
}
}
} else {
NotificationService

21. @Async
public void sendPushNotification(String deviceId,
String messageBody, int type) {
try {
String json = sendPushImpl(deviceId, messageBody, type);
if(json != null) {
JsonParser parser = JsonParserFactory.getJsonParser();
if(json.startsWith("[")) {
List<Object> lst = parser.parseList(json);
for(Object o : lst) {
if(o instanceof Map) {
Map entry = (Map)o;
String status = (String)entry.get("status");
if(status != null) {
if(status.equals("error") ||
status.equals("inactive")) {
removePushKey((String)
entry.get("id"));
}
}
}
}
} else {
NotificationService

22. Map entry = (Map)o;
String status = (String)entry.get("status");
if(status != null) {
if(status.equals("error") ||
status.equals("inactive")) {
removePushKey((String)
entry.get("id"));
}
}
}
}
} else {
Map<String, Object> m = parser.parseMap(json);
if(m.containsKey("error")) {
logger.error("Error message from server: " +
m.get("error"));
}
}
}
} catch(IOException err) {
logger.error("Error during connection to push server", err);
}
}
NotificationService

23. }
} catch(IOException err) {
logger.error("Error during connection to push server", err);
}
}
private static byte[] readInputStream(InputStream i)
throws IOException {
try(ByteArrayOutputStream b = new ByteArrayOutputStream()) {
copy(i, b);
return b.toByteArray();
}
}
private static void copy(InputStream i, OutputStream o)
throws IOException {
byte[] buffer = new byte[8192];
int size = i.read(buffer);
while(size > -1) {
o.write(buffer, 0, size);
size = i.read(buffer);
}
}
}
NotificationService

24. @RequestMapping(method=RequestMethod.GET, value="/notifications")
public List<NotificationDAO> listNotifications(
@RequestHeader(name="auth", required=true) String auth,
@RequestParam(name="page") int page,
@RequestParam(name="size") int size) {
return notifications.listNotifications(auth, page, size);
}
@RequestMapping(method=RequestMethod.POST, value="/contacts")
public String uploadContacts(
@RequestHeader(name="auth", required=true) String auth,
@RequestBody List<ShadowUserDAO> contacts) {
users.uploadContacts(auth, contacts);
return "OK";
}
@RequestMapping(method=RequestMethod.GET, value="/updatePush")
public String updatePushKey(
@RequestHeader(name="auth", required=true) String auth,
String key) {
notifications.updatePushKey(auth, key);
return "OK";
}
}
UserWebService

25. @SpringBootApplication
@EnableAsync
public class FacebookCloneServerApplication {
public static void main(String[] args) {
SpringApplication.run(FacebookCloneServerApplication.class, args);
}
@Bean
public Executor asyncExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(2);
executor.setMaxPoolSize(2);
executor.setQueueCapacity(5000);
executor.setThreadNamePrefix("PushThread-");
executor.initialize();
return executor;
}
}
FacebookCloneServerApplication

26. @SpringBootApplication
@EnableAsync
public class FacebookCloneServerApplication {
public static void main(String[] args) {
SpringApplication.run(FacebookCloneServerApplication.class, args);
}
@Bean
public Executor asyncExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(2);
executor.setMaxPoolSize(2);
executor.setQueueCapacity(5000);
executor.setThreadNamePrefix("PushThread-");
executor.initialize();
return executor;
}
}
FacebookCloneServerApplication