First commit

src/com/mesacarlos/webconsole/util/LoginManager.java

@@ -0,0 +1,29 @@
+package com.mesacarlos.webconsole.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class LoginManager {
+	private List<String> loggedInUsers = new ArrayList<String>();
+	private static LoginManager instance;
+	
+	private LoginManager() {}
+	
+	public static LoginManager getInstance() {
+		if(instance == null)
+			instance = new LoginManager();
+		return instance;
+	}
+	
+	public void logIn(String address) {
+		loggedInUsers.add(address);
+	}
+	
+	public void logOut(String address) {
+		loggedInUsers.remove(address);
+	}
+	
+	public boolean isLoggedIn(String address) {
+		return loggedInUsers.contains(address);
+	}
+}