Add: Create UserRegistry and schedule UserCleanupJob

src/main/java/ch/unibas/dmi/dbis/cs108/casono/server/ServerApp.java

@@ -1,14 +1,24 @@
 package ch.unibas.dmi.dbis.cs108.casono.server;
 
+import ch.unibas.dmi.dbis.cs108.casono.server.domain.user.UserCleanupJob;
+import ch.unibas.dmi.dbis.cs108.casono.server.domain.user.UserRegistry;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.NetworkManager;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.events.DisconnectEvent;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.events.EventBus;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.sessions.SessionManager;
+import java.time.Duration;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 /** Application class for starting the server. */
 public class ServerApp {
+    public static final int USER_CLEANUP_JOB_DELAY = 0;
+    public static final int USER_CLEANUP_JOB_PERIOD = 10;
+    public static final int USER_CLEANUP_JOB_RECONNECT_THRESHOLD = 10;
+
     public static void start(String arg) {
         int port = Integer.parseInt(arg);
 
@@ -20,6 +30,18 @@ public class ServerApp {
         eventBus.subscribe(
                 DisconnectEvent.class, event -> sessionManager.removeSession(event.sessionId()));
         NetworkManager networkManager = new NetworkManager(port, sessionManager, eventBus);
+
+        UserRegistry userRegistry = new UserRegistry();
+        eventBus.subscribe(
+                DisconnectEvent.class, event -> userRegistry.onDisconnect(event.sessionId()));
+        ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
+        scheduler.scheduleAtFixedRate(
+                new UserCleanupJob(
+                        userRegistry, Duration.ofSeconds(USER_CLEANUP_JOB_RECONNECT_THRESHOLD)),
+                USER_CLEANUP_JOB_DELAY,
+                USER_CLEANUP_JOB_PERIOD,
+                TimeUnit.SECONDS);
+
         networkManager.start();
     }
 }