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Quellcodes/iud_key_rsachat/ChatServerGUI.java

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+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import javax.swing.event.*;
+import java.util.ArrayList;
+
+/**
+  *
+  * Beschreibung
+  *
+  * @version 1.0 vom 26.05.2017
+  * @author 
+  */
+
+public class ChatServerGUI extends JFrame implements MyServerSocketListener  {
+  // Anfang Attribute
+  private ArrayList<MySocket> clients;
+  private ArrayList<String> names;
+  private static boolean ende;
+  private MyServer server;
+  private JLabel jLabel1 = new JLabel();
+  private JButton jBStarten = new JButton();
+  private JNumberField jNFPort = new JNumberField();
+  private JList jList1 = new JList();
+  private DefaultListModel jList1Model = new DefaultListModel();
+  private JScrollPane jList1ScrollPane = new JScrollPane(jList1);
+  private JLabel jLabel2 = new JLabel();
+  private int changeClientListAktiv = 0;
+  private JLabel jLabel3 = new JLabel();
+  // Ende Attribute
+   
+  public ChatServerGUI() { 
+    // Frame-Initialisierung
+    super();
+    setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
+    int frameWidth = 300; 
+    int frameHeight = 311;
+    setSize(frameWidth, frameHeight);
+    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
+    int x = (d.width - getSize().width) / 2;
+    int y = (d.height - getSize().height) / 2;
+    setLocation(x, y);
+    setTitle("Chat-Server");
+    setResizable(false);
+    Container cp = getContentPane();
+    cp.setLayout(null);
+    // Anfang Komponenten
+    
+    jLabel1.setBounds(8, 16, 110, 20);
+    jLabel1.setText("Portnummer");
+    cp.add(jLabel1);
+    jBStarten.setBounds(96, 48, 75, 25);
+    jBStarten.setText("Starten");
+    jBStarten.setMargin(new Insets(2, 2, 2, 2));
+    jBStarten.addActionListener(new ActionListener() { 
+      public void actionPerformed(ActionEvent evt) { 
+        jBStarten_ActionPerformed(evt);
+      }
+    });
+    cp.add(jBStarten);
+    jNFPort.setBounds(128, 16, 99, 20);
+    jNFPort.setText("44444");
+    cp.add(jNFPort);
+    jList1.setModel(jList1Model);
+    jList1ScrollPane.setBounds(8, 112, 265, 137);
+    cp.add(jList1ScrollPane);
+    jLabel2.setBounds(8, 88, 110, 20);
+    jLabel2.setText("Chatteilnehmer");
+    cp.add(jLabel2);
+    addWindowListener(new WindowAdapter() { 
+      public void windowClosing(WindowEvent evt) { 
+        ChatServerGUI_WindowClosing(evt);
+      }
+    });
+    jLabel3.setBounds(24, 248, 229, 20);
+    jLabel3.setText("(cc) 2017, Thomas Schaller, Version 1.0");
+    jLabel3.setForeground(Color.GRAY);
+    cp.add(jLabel3);
+    // Ende Komponenten
+    
+    setVisible(true);
+    
+    clients    = new ArrayList<MySocket>();
+    names      = new ArrayList<String>();
+    server     = null;
+    
+  } // end of public ChatServerGUI
+  
+ 
+  
+  // Anfang Methoden
+  
+  public void neuerClient(MySocket client) {
+    for (String n : names) {
+      if (!n.equals("ManInTheMiddle")) {
+        client.sendeNachricht("user:"+n);
+      } // end of if
+    } // end of for
+    this.clients.add(client);
+    //    System.out.println("Habe Kontakt mit "+client.getSocket().getInetAddress()+" Port "+client.getSocket().getPort());
+    this.names.add("?");
+    //    changeClientList();
+  }
+  
+  public void changeClientList() {
+    changeClientListAktiv++;
+    if (changeClientListAktiv == 1) {
+    do{
+      changeClientListAktiv--;
+        DefaultListModel newListModel = new DefaultListModel();
+        System.out.println("lm: "+jList1Model.size());
+        System.out.println("Clients: "+clients.size());
+        for (int i = 0; i < clients.size() ; i++ ) {
+        MySocket s = clients.get(i);
+          String   n = names.get(i);
+          newListModel.addElement(n+"("+s.getSocket().getInetAddress()+":"+s.getSocket().getPort()+")");
+          System.out.println(n+"("+s.getSocket().getInetAddress()+":"+s.getSocket().getPort()+")");
+        System.out.println("lm: "+jList1Model.size());
+          } // end of for
+        jList1.setModel(newListModel);
+        jList1.validate();  
+        }
+        while (changeClientListAktiv > 0 );
+        } // end of if
+        }
+      
+      public void nachrichtEmpfangen(MySocket client) {
+    String s = client.holeNachricht();
+    System.out.println("Habe Nachricht empfangen:"+s);
+    String[] ss = s.split(":");
+    int i = clients.indexOf(client);
+    
+    if (ss[0].equals("exit")) {
+    s = s+names.get(i);
+    clients.remove(i);
+    names.remove(i);
+    client.trenneVerbindung();
+    for (int j=0; j<clients.size(); j++) {
+    MySocket c =  clients.get(j);
+    if (c!=client) {
+    c.sendeNachricht(s);
+    } // end of if
+    }
+    changeClientList();
+    return;
+    } 
+    
+    if (ss[0].equals("user")) {
+    names.set(i,ss[1]);
+    for (int j=0; j<clients.size(); j++) {
+    MySocket c =  clients.get(j);
+    if (c!=client) {
+    c.sendeNachricht(s);
+    } // end of if
+    }
+    changeClientList();
+    return;
+    }   
+    
+    
+    
+    if (ss[0].equals("mitm")) {
+    names.set(i,"ManInTheMiddle");
+    changeClientList();
+    return;
+    }
+    
+    if (ss[0].equals("mess")) {
+    int nextMitM=-1;
+    int start=0;
+    if (names.get(i).equals("ManInTheMiddle")) {
+    start = i+1;
+    } 
+    
+    for (int j=start;j<clients.size() ;j++ ) {
+    if (names.get(j).equals("ManInTheMiddle")) {
+    nextMitM = j;
+    break;
+    
+    } // end of if
+    } // end of for
+    if (nextMitM!=-1) {
+    MySocket c = clients.get(nextMitM);
+    c.sendeNachricht(s);
+    } else {
+    for (int j=0; j<clients.size(); j++) {
+    MySocket c =  clients.get(j);
+    if (!ss[1].equals(names.get(j)) && (ss[2].equals("alle") || ss[2].equals(names.get(j))) && !names.get(j).equals("ManInTheMiddle"))  {
+    c.sendeNachricht(s);
+    } // end of if
+    }   
+    } // end of if-else
+    
+    } // end of if
+    } // end of if
+    
+    
+    
+    
+    public void verbindungBeendet(MySocket client) {
+    if (clients.contains(client)) {
+    
+    int i = clients.indexOf(client);
+    
+    clients.remove(i);
+    System.out.println("Verbindung mit "+client.getSocket().getInetAddress()+" Port: "+client.getSocket().getPort()+" verloren.");
+    for (MySocket c: clients) {
+    if (c!=client) {
+    c.sendeNachricht(("exit:"+names.get(i)+":alle"));
+    } // end of if
+    }
+    names.remove(i);
+    changeClientList();
+    } // end of if
+    
+    }
+    
+    
+    /*  public static void main (String[] args) {
+    new ChatServer(44444);
+    
+    ende = false;
+    while (!ende) {
+    try{
+    
+    Thread.sleep(100);
+    }
+    catch(Exception e) {
+    System.out.println("Error");
+    }
+    } // end of while
+    }
+    
+    // Anfang Methoden
+    */
+    
+    public static void main(String[] args) {
+    new ChatServerGUI();
+    } // end of main
+    
+    public void jBStarten_ActionPerformed(ActionEvent evt) {
+    if (jBStarten.getText().equals("Starten")) {
+      server = new MyServer(this, this.jNFPort.getInt());
+      server.starten();  
+      jBStarten.setText("Stoppen");
+      jNFPort.setEnabled(false);
+      
+    } else {
+      server.stoppen();
+      server = null;
+      jBStarten.setText("Starten");        
+      jNFPort.setEnabled(true);
+    } // end of if-else
+    } // end of jBStarten_ActionPerformed
+    
+  public void ChatServerGUI_WindowClosing(WindowEvent evt) {
+    if (server != null) server.stoppen();
+  } // end of ChatServerGUI_WindowClosing
+
+    // Ende Methoden
+    } // end of class ChatServerGUI
+