Added Startup class and login by username.

src/main/java/envoy/client/ui/ChatWindow.java

@@ -35,6 +35,7 @@ import envoy.schema.Users;
  * 
  * @author Kai S. K. Engelbart
  * @author Maximilian Käfer
+ * @author Leon Hofmeister
  * @since Envoy 0.1
  */
 public class ChatWindow extends JFrame {
@@ -44,11 +45,13 @@ public class ChatWindow extends JFrame {
 	private long	recipientID	= 0;
 	private JPanel	contentPane	= new JPanel();
 
-	private static Client client;
+	private Client client;
 
 	private DefaultListModel<String> messageListModel = new DefaultListModel<>();
 
-	public ChatWindow() {
+	public ChatWindow(Client client) {
+		this.client = client;
+		
 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		setBounds(100, 100, 600, 800);
 		setTitle("Envoy");
@@ -212,35 +215,4 @@ public class ChatWindow extends JFrame {
 				+ getFirstTextContent(message) + "</span></html>");
 	}
 
-	public static void main(String[] args) {
-		Config config = new Config();
-		if (args.length > 0) {
-			config.load(args);
-		} else {
-			ClassLoader loader = Thread.currentThread().getContextClassLoader();
-			try {
-				Properties configProperties = new Properties();
-				configProperties.load(loader.getResourceAsStream("server.properties"));
-				config.load(configProperties);
-			} catch (IOException e) {
-				e.printStackTrace();
-			}
-		}
-
-		if(!config.isInitialized()) {
-			System.err.println("Server or port are not defined. Exiting...");
-			System.exit(1);
-		}
-		
-		client = new Client(config);
-
-		EventQueue.invokeLater(() -> {
-			try {
-				ChatWindow frame = new ChatWindow();
-				frame.setVisible(true);
-			} catch (Exception e) {
-				e.printStackTrace();
-			}
-		});
-	}
 }