application now resets online flag and num_sessions to 0 on startup

chatto/src/main/java/org/ros/chatto/BeanConfigurations.java

@@ -1,7 +1,6 @@
 package org.ros.chatto;
 
 import org.modelmapper.ModelMapper;
-import org.ros.chatto.logged.ActiveUserStore;
 import org.ros.chatto.security.AuthenticationSuccessHandlerImpl;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.MessageSource;
@@ -45,11 +44,6 @@ public class BeanConfigurations {
 	    return messageSource;
 	}
 	
-	@Bean
-	ActiveUserStore activeUserStore() {
-		return new ActiveUserStore();
-	}
-	
 //	@Bean
 //	public Connection connection() throws SQLException
 //	{

chatto/src/main/java/org/ros/chatto/controller/DemoRestController.java

@@ -7,7 +7,6 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 import org.ros.chatto.dto.ActiveUserDTO;
-import org.ros.chatto.logged.ActiveUserStore;
 import org.ros.chatto.model.ChatMessage;
 import org.ros.chatto.model.ChatUser;
 import org.ros.chatto.model.MessageCipher;
@@ -51,8 +50,6 @@ public class DemoRestController {
 	@Autowired
 	ChatMessageRepository chatMessageRepository;
 	@Autowired
-	ActiveUserStore activeUserStore;
-	@Autowired
 	private UserService userService;
 	@GetMapping("/users")
 	public List<ChatUser> getAllUsers() {
@@ -128,11 +125,6 @@ public class DemoRestController {
 		return "redirect:/users";
 	}
 	
-	@GetMapping(value = "/loggedUsers")
-	public ActiveUserStore getActiveUsers() {
-		return activeUserStore;
-	}
-	
 	@GetMapping(value = "/loggedUsers2")
 	public List<ActiveUserDTO> getOtherActiveUsers(Principal principal)
 	{

chatto/src/main/java/org/ros/chatto/logged/ActiveUser.java

@@ -1,12 +0,0 @@
-package org.ros.chatto.logged;
-
-import java.time.Instant;
-
-import lombok.Data;
-
-@Data 
-public class ActiveUser {
-	private String userName;
-//	private Instant lastActive;
-	private int numSessions = 0;
-}

chatto/src/main/java/org/ros/chatto/logged/ActiveUserStore.java

@@ -1,20 +0,0 @@
-package org.ros.chatto.logged;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import lombok.Getter;
-import lombok.Setter;
-
-@Getter @Setter
-public class ActiveUserStore {
-	 
-    public List<String> users;
-    
-    public List<ActiveUser> activeUsers;
- 
-    public ActiveUserStore() {
-        users = new ArrayList<String>();
-        activeUsers = new ArrayList<>();
-    }
-}

chatto/src/main/java/org/ros/chatto/logged/LoggedUser.java

@@ -26,14 +26,11 @@ import lombok.Setter;
 public class LoggedUser implements HttpSessionBindingListener {
 
 	private String username;
-	private ActiveUserStore activeUserStore;
 
-	public LoggedUser(String username, ActiveUserStore activeUserStore) {
+	public LoggedUser(String username)
+	{
 		this.username = username;
-		this.activeUserStore = activeUserStore;
-
 	}
-
 	public LoggedUser() {
 	}
 
@@ -41,27 +38,9 @@ public class LoggedUser implements HttpSessionBindingListener {
 	public void valueBound(HttpSessionBindingEvent event) {
 		UserService userService = getUserService(event);
 		UserSessionRepository userSessionRepository = getUserSessionRepository(event);
-		List<String> users = activeUserStore.getUsers();
-		List<ActiveUser> activeUsers = activeUserStore.getActiveUsers();
 		LoggedUser user = (LoggedUser) event.getValue();
-		if (!users.contains(user.getUsername())) {
-			users.add(user.getUsername());
-		}
 
 		Instant instant = Instant.now();
-//		Optional<ActiveUser> activeUserOptional = activeUsers.stream()
-//				.filter(au -> au.getUserName().equals(user.getUsername()))
-//				.findFirst();
-//		ActiveUser activeUser2 = activeUserOptional.get();
-//		activeUser2.setNumSessions(activeUser2.getNumSessions() + 1);
-//		boolean found = activeUsers.stream().anyMatch(au -> au.getUserName().equals(user.getUsername()));
-//		if (!found) {
-//			System.out.println("Test found ");
-//			ActiveUser activeUser = new ActiveUser();
-//			activeUser.setUserName(user.getUsername());
-////			activeUser.setLastActive(instant);
-//			activeUsers.add(activeUser);
-//		}
 		ChatUser chatUser = userService.findByUserName(user.getUsername());
 
 		UserSession userSession = userSessionRepository.findByUserName(user.getUsername());
@@ -79,27 +58,13 @@ public class LoggedUser implements HttpSessionBindingListener {
 
 	@Override
 	public void valueUnbound(HttpSessionBindingEvent event) {
-		List<String> users = activeUserStore.getUsers();
 		LoggedUser user = (LoggedUser) event.getValue();
-		List<ActiveUser> activeUsers = activeUserStore.getActiveUsers();
 		
 		UserService userService = getUserService(event);
 		UserSessionRepository userSessionRepository = getUserSessionRepository(event);
 		Instant instant = Instant.now();
 
-		if (users.contains(user.getUsername())) {
-			users.remove(user.getUsername());
-		}
 
-		activeUsers.removeIf(au -> {
-			int numSessions = au.getNumSessions();
-			if (au.getUserName().equals(user.getUsername()) && --numSessions == 0) {
-				au.setNumSessions(numSessions);
-				return true;
-			}
-
-			return false;
-		});
 		
 		
 		ChatUser chatUser = userService.findByUserName(user.getUsername());

chatto/src/main/java/org/ros/chatto/logged/MySimpleUrlAuthenticationSuccessHandler.java

@@ -14,16 +14,13 @@ import org.springframework.stereotype.Component;
 @Component("myAuthenticationSuccessHandler")
 public class MySimpleUrlAuthenticationSuccessHandler implements AuthenticationSuccessHandler {
  
-    @Autowired
-    ActiveUserStore activeUserStore;
-     
     @Override
     public void onAuthenticationSuccess(HttpServletRequest request, 
       HttpServletResponse response, Authentication authentication) 
       throws IOException {
         HttpSession session = request.getSession(false);
         if (session != null) {
-            LoggedUser user = new LoggedUser(authentication.getName(), activeUserStore);
+            LoggedUser user = new LoggedUser(authentication.getName());
             session.setAttribute("user", user);
         }
         response.sendRedirect("/chat");

chatto/src/main/java/org/ros/chatto/service/DBInitializerService.java

@@ -13,11 +13,15 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
+import java.util.stream.Collectors;
 
 import javax.persistence.EntityManager;
 import javax.persistence.PersistenceContext;
 
 import org.ros.chatto.model.ApplicationStatus;
+import org.ros.chatto.model.UserSession;
+import org.ros.chatto.repository.UserSessionRepository;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.annotation.PropertySource;
@@ -59,6 +63,9 @@ public class DBInitializerService {
 	@PersistenceContext
 	EntityManager entityManager;
 	
+	@Autowired
+	private UserSessionRepository userSessionRepository;
+
 	private final String tablesCreatedKey = "tables_created";
 	private final String rolesPopulatedKey = "roles_populated";
 
@@ -162,6 +169,8 @@ public class DBInitializerService {
 		if (getNumTables() == 0)
 			populateDB();
 		closeConnection();
+		
+		resetAllUserSessions(userSessionRepository.findAll());
 	}
 
 	public void populateDB() throws SQLException, IOException {
@@ -243,4 +252,14 @@ public class DBInitializerService {
 		connection.close();
 	}
 	
+	private void resetAllUserSessions(List<UserSession> userSessionsList)
+	{
+		List<UserSession> userSessionsResetList = userSessionsList.stream().map(us -> {
+			us.setNumSessions(0);
+			us.setOnline(false);
+			return us;
+		}).collect(Collectors.toList());
+		userSessionRepository.saveAll(userSessionsResetList);
+	}
+
 }

chatto/src/main/java/org/ros/chatto/service/UserServiceImpl.java

@@ -1,5 +1,6 @@
 package org.ros.chatto.service;
 
+import java.time.Duration;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -10,7 +11,6 @@ import javax.transaction.Transactional;
 
 import org.ros.chatto.dto.ActiveUserDTO;
 import org.ros.chatto.dto.UserRegistrationDTO;
-import org.ros.chatto.logged.ActiveUserStore;
 import org.ros.chatto.model.ChatUser;
 import org.ros.chatto.model.Role;
 import org.ros.chatto.model.UserRole;
@@ -23,8 +23,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
 
-import java.time.Duration;
-
 @Service
 public class UserServiceImpl implements UserService {
 	@Autowired
@@ -45,8 +43,6 @@ public class UserServiceImpl implements UserService {
 	@Autowired
 	private UserSessionRepository userSessionRepository;
 
-	@Autowired
-	private ActiveUserStore activeUserStore;
 
 	@Override
 	@Transactional