Minor changes.

mark.george / democall3

Browse code Minor changes. master
1 parent b2a8b9f commit 585d2980bc67f1277b615b668f593a1f1aea1c7c Mark authored on 9 Aug 2013

Patch

Showing 4 changed files

Ignore Space Show notes View src/clients/StudentClient.java
package clients; import constants.Constants; import discovery.computername.ComputerNameResolver; import discovery.computername.InvalidComputerNameException; import discovery.computername.OtagoComputerNameResolver; import discovery.server.ServiceLocator; import discovery.server.ServiceNotFoundException; import java.awt.; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.logging.Level; import java.util.logging.Logger; import network.MessageGenerator; import network.RequestSender; / * The student's client for requesting help. * * It adds a system tray icon that has a pop-up menu that the student can use to * request help or cancel their request. Requests are automatically canceled * when the student clicks the "exit" menu item, or the client is terminated by * the OS (via a shutdown hook) meaning there should never be requests in the * queue for students who have gone home. * * This aims to be both simple and robust, therefor the StudentClient stores no * state relating to requests, uses no persistent connections to the server, and * receives no information from the server. * * The client uses a multi-cast broadcast to discover the IP of the server, * which it then uses to send requests to the server. * * The wire protocol is very simple. A string in the form "request 23" is a * request for from the machine with ID 23, and "cancel 23" will cancel that * request. Sending multiple "request" commands or multiple "cancel" commands to * the server should cause no duplication or problems on the server and are * effectively ignored. * * @author Mark / public class StudentClient { private static final Logger LOG = Logger.getLogger(StudentClient.class.getName()); private final PopupMenu trayPopopMenu = new PopupMenu(); private final Image trayIconImage = Toolkit.getDefaultToolkit().getImage(getClass().getResource("/icon.png")); private final TrayIcon systemTrayIcon = new TrayIcon(trayIconImage, "Demo Call " + Constants.VERSION, trayPopopMenu); private final MessageGenerator generator = new MessageGenerator(); private String machineId; private RequestSender requestSender; private boolean foundServer = false; private final Thread shutDownHook = new Thread() { @Override public void run() { cleanUp(); } }; public StudentClient(final ComputerNameResolver nameResolver) { try { createTrayMenu(); // not sure this is necessary but Windows is currently not exiting // when the shutdown hook kicks in... this.shutDownHook.setDaemon(true); Runtime.getRuntime().addShutdownHook(this.shutDownHook); try { nameResolver.resolve(); } catch (InvalidComputerNameException ex) { this.systemTrayIcon.displayMessage("Whoops", ex.getMessage(), TrayIcon.MessageType.ERROR); // give user a chance to read message Thread.sleep(5000); // shutdown exit(); } final String lab = nameResolver.getLabName(); this.machineId = nameResolver.getMachineId(); // find server IP (uses network multicast) final String serverIp = new ServiceLocator().locateServer(lab); this.foundServer = true; // this.systemTrayIcon.displayMessage("Yay", "Server found: " +serverIp, TrayIcon.MessageType.INFO); this.requestSender = new RequestSender(serverIp); } catch (ServiceNotFoundException ex) { this.systemTrayIcon.displayMessage("Whoops", "Could not connect to server. Please try again and let the supervisor know if it continues to happen.", TrayIcon.MessageType.ERROR); } catch (Exception ex) { LOG.log(Level.SEVERE, null, ex); } } private void createTrayMenu() { try { this.systemTrayIcon.setImageAutoSize(true); final MenuItem request = new MenuItem("Request Help"); request.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { makeRequest(); } }); final MenuItem cancel = new MenuItem("Cancel Request"); cancel.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { cancelRequest(); } }); final MenuItem exit = new MenuItem("Exit"); exit.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { exit(); } }); this.trayPopopMenu.add(request); this.trayPopopMenu.add(cancel); this.trayPopopMenu.addSeparator(); this.trayPopopMenu.add(exit); SystemTray.getSystemTray().add(this.systemTrayIcon); } catch (Exception ex) { LOG.log(Level.SEVERE, null, ex); } } private void makeRequest() { try { requestSender.sendRequest(generator.requestHelp(machineId)); systemTrayIcon.displayMessage("Help is on the way", "Your request is now in the queue.", TrayIcon.MessageType.INFO); } catch (Exception ex) { systemTrayIcon.displayMessage("Whoops", "Failed to make request", TrayIcon.MessageType.ERROR); LOG.log(Level.SEVERE, "Error making request", ex); } } private void cancelRequest() { try { requestSender.sendRequest(generator.cancelRequest(machineId)); systemTrayIcon.displayMessage("Request removed", "Your request has been removed from the queue.", TrayIcon.MessageType.INFO); } catch (Exception ex) { systemTrayIcon.displayMessage("Whoops", "Failed to cancel request", TrayIcon.MessageType.ERROR); LOG.log(Level.SEVERE, "Error cancelling request", ex); } } private void exit() { this.cleanUp(); // force an exit since they are several threads lurking around that could keep the process running System.exit(0); } private void cleanUp() { // cancel any requests the student has made if (this.foundServer) { cancelRequest(); } // remove the tray icon from the system tray SystemTray.getSystemTray().remove(systemTrayIcon); } @SuppressWarnings("ResultOfObjectAllocationIgnored") public static void main(final String[] args) { // final String name = "SB318-15"; // final String name = "SB317-10"; // final String name = "SBEASTCAL1-30"; final String name = args.length > 0 ? args[0] : null; final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME"); new StudentClient(nameResolver); } } package clients; import constants.Constants; import discovery.computername.ComputerNameResolver; import discovery.computername.InvalidComputerNameException; import discovery.computername.OtagoComputerNameResolver; import discovery.server.ServiceLocator; import discovery.server.ServiceNotFoundException; import java.awt.; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.logging.Level; import java.util.logging.Logger; import network.MessageGenerator; import network.RequestSender; /* * The student's client for requesting help. * * It adds a system tray icon that has a pop-up menu that the student can use to * request help or cancel their request. Requests are automatically canceled * when the student clicks the "exit" menu item, or the client is terminated by * the OS (via a shutdown hook) meaning there should never be requests in the * queue for students who have gone home. * * This aims to be both simple and robust, therefor the StudentClient stores no * state relating to requests, uses no persistent connections to the server, and * receives no information from the server. * * The client uses a multi-cast broadcast to discover the IP of the server, * which it then uses to send requests to the server. * * The wire protocol is very simple. A string in the form "request 23" is a * request for from the machine with ID 23, and "cancel 23" will cancel that * request. Sending multiple "request" commands or multiple "cancel" commands to * the server should cause no duplication or problems on the server and are * effectively ignored. * * @author Mark */ public class StudentClient { private static final Logger LOG = Logger.getLogger(StudentClient.class.getName()); private final PopupMenu trayPopopMenu = new PopupMenu(); private final Image trayIconImage = Toolkit.getDefaultToolkit().getImage(getClass().getResource("/icon.png")); private final TrayIcon systemTrayIcon = new TrayIcon(trayIconImage, "Demo Call " + Constants.VERSION, trayPopopMenu); private final MessageGenerator generator = new MessageGenerator(); private String machineId; private RequestSender requestSender; private boolean foundServer = false; private final Thread shutDownHook = new Thread() { @Override public void run() { cleanUp(); } }; public StudentClient(final ComputerNameResolver nameResolver) { try { createTrayMenu(); // not sure this is necessary but Windows is currently not exiting // when the shutdown hook kicks in... this.shutDownHook.setDaemon(true); Runtime.getRuntime().addShutdownHook(this.shutDownHook); try { nameResolver.resolve(); } catch (InvalidComputerNameException ex) { this.systemTrayIcon.displayMessage("Whoops", ex.getMessage(), TrayIcon.MessageType.ERROR); // give user a chance to read message Thread.sleep(5000); // shutdown exit(); } final String lab = nameResolver.getLabName(); this.machineId = nameResolver.getMachineId(); // find server IP (uses network multicast) final String serverIp = new ServiceLocator().locateServer(lab); this.foundServer = true; // this.systemTrayIcon.displayMessage("Yay", "Server found: " +serverIp, TrayIcon.MessageType.INFO); this.requestSender = new RequestSender(serverIp); } catch (ServiceNotFoundException ex) { this.systemTrayIcon.displayMessage("Whoops", "Could not connect to server. Please try again and let the supervisor know if it continues to happen.", TrayIcon.MessageType.ERROR); } catch (Exception ex) { LOG.log(Level.SEVERE, null, ex); } } private void createTrayMenu() { try { this.systemTrayIcon.setImageAutoSize(true); final MenuItem request = new MenuItem("Request Help"); request.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { makeRequest(); } }); final MenuItem cancel = new MenuItem("Cancel Request"); cancel.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { cancelRequest(); } }); final MenuItem exit = new MenuItem("Exit"); exit.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { exit(); } }); this.trayPopopMenu.add(request); this.trayPopopMenu.add(cancel); this.trayPopopMenu.addSeparator(); this.trayPopopMenu.add(exit); SystemTray.getSystemTray().add(this.systemTrayIcon); } catch (Exception ex) { LOG.log(Level.SEVERE, null, ex); } } private void makeRequest() { try { requestSender.sendRequest(generator.requestHelp(machineId)); systemTrayIcon.displayMessage("Help is on the way", "Your request is now in the queue.", TrayIcon.MessageType.INFO); } catch (Exception ex) { systemTrayIcon.displayMessage("Whoops", "Failed to make request", TrayIcon.MessageType.ERROR); LOG.log(Level.SEVERE, "Error making request", ex); } } private void cancelRequest() { try { requestSender.sendRequest(generator.cancelRequest(machineId)); systemTrayIcon.displayMessage("Request removed", "Your request has been removed from the queue.", TrayIcon.MessageType.INFO); } catch (Exception ex) { systemTrayIcon.displayMessage("Whoops", "Failed to cancel request", TrayIcon.MessageType.ERROR); LOG.log(Level.SEVERE, "Error cancelling request", ex); } } private void exit() { this.cleanUp(); // force an exit since they are several threads lurking around that could keep the process running System.exit(0); } private void cleanUp() { // cancel any requests the student has made if (this.foundServer) { cancelRequest(); } // remove the tray icon from the system tray SystemTray.getSystemTray().remove(systemTrayIcon); } @SuppressWarnings("ResultOfObjectAllocationIgnored") public static void main(final String[] args) { final String name = "SB318-15"; // final String name = "SB317-10"; // final String name = "SBEASTCAL1-30"; // final String name = args.length > 0 ? args[0] : null; final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME"); new StudentClient(nameResolver); } }

Ignore Space Show notes View

src/clients/StudentClient.java

package clients;

/*
 * The student's client for requesting help.
 *
 * It adds a system tray icon that has a pop-up menu that the student can use to
 * request help or cancel their request. Requests are automatically canceled
 * when the student clicks the "exit" menu item, or the client is terminated by
 * the OS (via a shutdown hook) meaning there should never be requests in the
 * queue for students who have gone home.
 *
 * This aims to be both simple and robust, therefor the StudentClient stores no
 * state relating to requests, uses no persistent connections to the server, and
 * receives no information from the server.
 *
 * The client uses a multi-cast broadcast to discover the IP of the server,
 * which it then uses to send requests to the server.
 *
 * The wire protocol is very simple. A string in the form "request 23" is a
 * request for from the machine with ID 23, and "cancel 23" will cancel that
 * request. Sending multiple "request" commands or multiple "cancel" commands to
 * the server should cause no duplication or problems on the server and are
 * effectively ignored.
 *
 * @author Mark
 */
public class StudentClient {

private static final Logger LOG = Logger.getLogger(StudentClient.class.getName());
   private final PopupMenu trayPopopMenu = new PopupMenu();
   private final Image trayIconImage = Toolkit.getDefaultToolkit().getImage(getClass().getResource("/icon.png"));
   private final TrayIcon systemTrayIcon = new TrayIcon(trayIconImage, "Demo Call " + Constants.VERSION, trayPopopMenu);
   private final MessageGenerator generator = new MessageGenerator();
   private String machineId;
   private RequestSender requestSender;
   private boolean foundServer = false;
   private final Thread shutDownHook = new Thread() {

@Override
      public void run() {
         cleanUp();
      }
   };

public StudentClient(final ComputerNameResolver nameResolver) {
      try {
         createTrayMenu();

// not sure this is necessary but Windows is currently not exiting
         // when the shutdown hook kicks in...
         this.shutDownHook.setDaemon(true);

Runtime.getRuntime().addShutdownHook(this.shutDownHook);

try {
            nameResolver.resolve();
         } catch (InvalidComputerNameException ex) {
            this.systemTrayIcon.displayMessage("Whoops", ex.getMessage(), TrayIcon.MessageType.ERROR);

// give user a chance to read message
            Thread.sleep(5000);

// shutdown
            exit();
         }

final String lab = nameResolver.getLabName();
         this.machineId = nameResolver.getMachineId();

// find server IP (uses network multicast)
         final String serverIp = new ServiceLocator().locateServer(lab);

this.foundServer = true;
         
//         this.systemTrayIcon.displayMessage("Yay", "Server found: "  +serverIp, TrayIcon.MessageType.INFO);

this.requestSender = new RequestSender(serverIp);

} catch (ServiceNotFoundException ex) {
         this.systemTrayIcon.displayMessage("Whoops", "Could not connect to server.  Please try again and let the supervisor know if it continues to happen.", TrayIcon.MessageType.ERROR);
      } catch (Exception ex) {
         LOG.log(Level.SEVERE, null, ex);
      }

}

private void createTrayMenu() {
      try {

this.systemTrayIcon.setImageAutoSize(true);

final MenuItem request = new MenuItem("Request Help");
         request.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent e) {
               makeRequest();
            }
         });

final MenuItem cancel = new MenuItem("Cancel Request");
         cancel.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent e) {
               cancelRequest();
            }
         });

final MenuItem exit = new MenuItem("Exit");
         exit.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent e) {
               exit();
            }
         });

this.trayPopopMenu.add(request);
         this.trayPopopMenu.add(cancel);
         this.trayPopopMenu.addSeparator();
         this.trayPopopMenu.add(exit);

SystemTray.getSystemTray().add(this.systemTrayIcon);

} catch (Exception ex) {
         LOG.log(Level.SEVERE, null, ex);
      }
   }

private void makeRequest() {
      try {
         requestSender.sendRequest(generator.requestHelp(machineId));
         systemTrayIcon.displayMessage("Help is on the way", "Your request is now in the queue.", TrayIcon.MessageType.INFO);
      } catch (Exception ex) {
         systemTrayIcon.displayMessage("Whoops", "Failed to make request", TrayIcon.MessageType.ERROR);
         LOG.log(Level.SEVERE, "Error making request", ex);
      }
   }

private void cancelRequest() {
      try {
         requestSender.sendRequest(generator.cancelRequest(machineId));
         systemTrayIcon.displayMessage("Request removed", "Your request has been removed from the queue.", TrayIcon.MessageType.INFO);
      } catch (Exception ex) {
         systemTrayIcon.displayMessage("Whoops", "Failed to cancel request", TrayIcon.MessageType.ERROR);
         LOG.log(Level.SEVERE, "Error cancelling request", ex);
      }
   }

private void exit() {
      this.cleanUp();

// force an exit since they are several threads lurking around that could keep the process running
      System.exit(0);
   }

private void cleanUp() {
      // cancel any requests the student has made
      if (this.foundServer) {
         cancelRequest();
      }

// remove the tray icon from the system tray
      SystemTray.getSystemTray().remove(systemTrayIcon);
   }

@SuppressWarnings("ResultOfObjectAllocationIgnored")
   public static void main(final String[] args) {

//      final String name = "SB318-15";
//      final String name = "SB317-10";
//      final String name = "SBEASTCAL1-30";

final String name = args.length > 0 ? args[0] : null;

final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME");

new StudentClient(nameResolver);
   }
}

package clients;

@Override
      public void run() {
         cleanUp();
      }
   };

public StudentClient(final ComputerNameResolver nameResolver) {
      try {
         createTrayMenu();

// not sure this is necessary but Windows is currently not exiting
         // when the shutdown hook kicks in...
         this.shutDownHook.setDaemon(true);

Runtime.getRuntime().addShutdownHook(this.shutDownHook);

try {
            nameResolver.resolve();
         } catch (InvalidComputerNameException ex) {
            this.systemTrayIcon.displayMessage("Whoops", ex.getMessage(), TrayIcon.MessageType.ERROR);

// give user a chance to read message
            Thread.sleep(5000);

// shutdown
            exit();
         }

final String lab = nameResolver.getLabName();
         this.machineId = nameResolver.getMachineId();

// find server IP (uses network multicast)
         final String serverIp = new ServiceLocator().locateServer(lab);

this.foundServer = true;
         
//         this.systemTrayIcon.displayMessage("Yay", "Server found: "  +serverIp, TrayIcon.MessageType.INFO);

this.requestSender = new RequestSender(serverIp);

}

private void createTrayMenu() {
      try {

this.systemTrayIcon.setImageAutoSize(true);

final MenuItem request = new MenuItem("Request Help");
         request.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent e) {
               makeRequest();
            }
         });

final MenuItem cancel = new MenuItem("Cancel Request");
         cancel.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent e) {
               cancelRequest();
            }
         });

final MenuItem exit = new MenuItem("Exit");
         exit.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent e) {
               exit();
            }
         });

this.trayPopopMenu.add(request);
         this.trayPopopMenu.add(cancel);
         this.trayPopopMenu.addSeparator();
         this.trayPopopMenu.add(exit);

SystemTray.getSystemTray().add(this.systemTrayIcon);

} catch (Exception ex) {
         LOG.log(Level.SEVERE, null, ex);
      }
   }

private void exit() {
      this.cleanUp();

// force an exit since they are several threads lurking around that could keep the process running
      System.exit(0);
   }

private void cleanUp() {
      // cancel any requests the student has made
      if (this.foundServer) {
         cancelRequest();
      }

// remove the tray icon from the system tray
      SystemTray.getSystemTray().remove(systemTrayIcon);
   }

@SuppressWarnings("ResultOfObjectAllocationIgnored")
   public static void main(final String[] args) {

final String name = "SB318-15";
//      final String name = "SB317-10";
//      final String name = "SBEASTCAL1-30";

//      final String name = args.length > 0 ? args[0] : null;

final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME");

new StudentClient(nameResolver);
   }
}

Ignore Space Show notes View src/clients/TutorClient.java
package clients; import constants.Constants; import discovery.computername.ComputerNameResolver; import discovery.computername.InvalidComputerNameException; import discovery.computername.OtagoComputerNameResolver; import discovery.server.ServiceLocator; import discovery.server.ServiceNotFoundException; import gui.Lab; import gui.LabRegistry; import gui.QueuePanel; import gui.processors.TutorLabelProcessor; import java.awt.BorderLayout; import java.awt.event.ComponentAdapter; import java.awt.event.ComponentEvent; import java.io.ObjectInputStream; import java.util.Collection; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import network.RequestSender; /** * * @author Mark / public class TutorClient { private static final Logger LOG = Logger.getLogger(TutorClient.class.getName()); private String serverIp; @SuppressWarnings("rawtypes") public TutorClient(final ComputerNameResolver nameResolver) { JFrame frame = null; try { nameResolver.resolve(); String labName = nameResolver.getLabName(); final LabRegistry registry = new LabRegistry(); final Lab[] labs = registry.getLabs().toArray(new Lab[registry.getLabs().size()]); final Lab currentLab = registry.getLab(labName); final Lab lab = (Lab) JOptionPane.showInputDialog(null, "Which lab?", "Which lab?", JOptionPane.QUESTION_MESSAGE, null, labs, currentLab); if (lab == null) { System.exit(0); } else { labName = lab.getLabName(); } serverIp = new ServiceLocator().locateServer(labName); frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setAlwaysOnTop(true); final JPanel mapPanel = lab.getPanel(); final TutorLabelProcessor processor = new TutorLabelProcessor(serverIp); processor.processLabels(mapPanel); frame.setTitle(String.format("Democall %1s - Tutor Client (%1s)", Constants.VERSION, lab.getLabDescription())); frame.setLayout(new BorderLayout()); frame.add(BorderLayout.NORTH, new QueuePanel()); frame.add(BorderLayout.CENTER, mapPanel); frame.pack(); frame.setVisible(true); // final Timer timer = new Timer(true); // timer.scheduleAtFixedRate(new TimerTask() { // // @Override // public void run() { // final Collection<Integer> queue = new RequestSender(serverIp).requestQueue(); // processor.update(queue); // } // }, 0, Constants.TUTOR_CLIENT_POLL); final ObjectInputStream ois = new RequestSender(serverIp).registerTutorClient(); new Thread(new Runnable(){ public void run() { while(true) { try { @SuppressWarnings("unchecked") Collection<Integer> queue = (Collection<Integer>)ois.readObject(); // System.out.println(queue); processor.update(queue); } catch (Exception ex) { Logger.getLogger(TutorClient.class.getName()).log(Level.SEVERE, null, ex); break; } } } }).start(); // dynamic font resize based on window size final int defaultSize = Constants.DEFAULT_MAP_FONT_SIZE; final int defaultWidth = mapPanel.getWidth(); frame.addComponentListener(new ComponentAdapter() { @Override public void componentResized(ComponentEvent e) { int newWidth = mapPanel.getWidth(); float scaleFactor = (float)newWidth / (float)defaultWidth; int newFontSize = Math.round(defaultSize scaleFactor); processor.resizeFonts(newFontSize); } }); } catch (InvalidComputerNameException ex) { JOptionPane.showMessageDialog(frame, ex.getMessage(), "Error getting computer name.", JOptionPane.ERROR_MESSAGE); } catch (ServiceNotFoundException ex) { JOptionPane.showMessageDialog(frame, "Could not connect to server.", "Connection error", JOptionPane.ERROR_MESSAGE); } catch (Exception ex) { LOG.log(Level.SEVERE, null, ex); } } @SuppressWarnings("ResultOfObjectAllocationIgnored") public static void main(final String[] args) { // System.out.println("Tutor Client"); // final String name = "SBEASTCAL1-31"; // final String name = "SB318-10"; final String name = args.length > 0 ? args[0] : null; final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME"); new TutorClient(nameResolver); } } package clients; import constants.Constants; import discovery.computername.ComputerNameResolver; import discovery.computername.InvalidComputerNameException; import discovery.computername.OtagoComputerNameResolver; import discovery.server.ServiceLocator; import discovery.server.ServiceNotFoundException; import gui.Lab; import gui.LabRegistry; import gui.QueuePanel; import gui.processors.TutorLabelProcessor; import java.awt.BorderLayout; import java.awt.event.ComponentAdapter; import java.awt.event.ComponentEvent; import java.io.ObjectInputStream; import java.util.Collection; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import network.RequestSender; /** * * @author Mark / public class TutorClient { private static final Logger LOG = Logger.getLogger(TutorClient.class.getName()); private String serverIp; @SuppressWarnings("rawtypes") public TutorClient(final ComputerNameResolver nameResolver) { JFrame frame = null; try { nameResolver.resolve(); String labName = nameResolver.getLabName(); final LabRegistry registry = new LabRegistry(); final Lab[] labs = registry.getLabs().toArray(new Lab[registry.getLabs().size()]); final Lab currentLab = registry.getLab(labName); final Lab lab = (Lab) JOptionPane.showInputDialog(null, "Which lab?", "Which lab?", JOptionPane.QUESTION_MESSAGE, null, labs, currentLab); if (lab == null) { System.exit(0); } else { labName = lab.getLabName(); } serverIp = new ServiceLocator().locateServer(labName); frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setAlwaysOnTop(true); final JPanel mapPanel = lab.getPanel(); final TutorLabelProcessor processor = new TutorLabelProcessor(serverIp); processor.processLabels(mapPanel); frame.setTitle(String.format("Democall %1s - Tutor Client (%1s)", Constants.VERSION, lab.getLabDescription())); frame.setLayout(new BorderLayout()); frame.add(BorderLayout.NORTH, new QueuePanel()); frame.add(BorderLayout.CENTER, mapPanel); frame.pack(); frame.setVisible(true); // final Timer timer = new Timer(true); // timer.scheduleAtFixedRate(new TimerTask() { // // @Override // public void run() { // final Collection<Integer> queue = new RequestSender(serverIp).requestQueue(); // processor.update(queue); // } // }, 0, Constants.TUTOR_CLIENT_POLL); final ObjectInputStream ois = new RequestSender(serverIp).registerTutorClient(); new Thread(new Runnable(){ public void run() { while(true) { try { @SuppressWarnings("unchecked") Collection<Integer> queue = (Collection<Integer>)ois.readObject(); System.out.println(queue); processor.update(queue); } catch (Exception ex) { Logger.getLogger(TutorClient.class.getName()).log(Level.SEVERE, null, ex); break; } } } }).start(); // dynamic font resize based on window size final int defaultSize = Constants.DEFAULT_MAP_FONT_SIZE; final int defaultWidth = mapPanel.getWidth(); frame.addComponentListener(new ComponentAdapter() { @Override public void componentResized(ComponentEvent e) { int newWidth = mapPanel.getWidth(); float scaleFactor = (float)newWidth / (float)defaultWidth; int newFontSize = Math.round(defaultSize scaleFactor); processor.resizeFonts(newFontSize); } }); } catch (InvalidComputerNameException ex) { JOptionPane.showMessageDialog(frame, ex.getMessage(), "Error getting computer name.", JOptionPane.ERROR_MESSAGE); } catch (ServiceNotFoundException ex) { JOptionPane.showMessageDialog(frame, "Could not connect to server.", "Connection error", JOptionPane.ERROR_MESSAGE); } catch (Exception ex) { LOG.log(Level.SEVERE, null, ex); } } @SuppressWarnings("ResultOfObjectAllocationIgnored") public static void main(final String[] args) { System.out.println("Tutor Client"); // final String name = "SBEASTCAL1-31"; final String name = "SB318-10"; // final String name = args.length > 0 ? args[0] : null; final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME"); new TutorClient(nameResolver); } }

Ignore Space Show notes View

src/clients/TutorClient.java

package clients;

import constants.Constants;
import discovery.computername.ComputerNameResolver;
import discovery.computername.InvalidComputerNameException;
import discovery.computername.OtagoComputerNameResolver;
import discovery.server.ServiceLocator;
import discovery.server.ServiceNotFoundException;
import gui.Lab;
import gui.LabRegistry;
import gui.QueuePanel;
import gui.processors.TutorLabelProcessor;
import java.awt.BorderLayout;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.io.ObjectInputStream;
import java.util.Collection;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import network.RequestSender;

/**
 *
 * @author Mark
 */
public class TutorClient {

private static final Logger LOG = Logger.getLogger(TutorClient.class.getName());
   
   private String serverIp;

@SuppressWarnings("rawtypes")
   public TutorClient(final ComputerNameResolver nameResolver) {

JFrame frame = null;
      
      try {
         nameResolver.resolve();
         
         String labName = nameResolver.getLabName();

final LabRegistry registry = new LabRegistry();
         final Lab[] labs = registry.getLabs().toArray(new Lab[registry.getLabs().size()]);
         final Lab currentLab = registry.getLab(labName);
         
         final Lab lab = (Lab) JOptionPane.showInputDialog(null, "Which lab?", "Which lab?",  JOptionPane.QUESTION_MESSAGE, null, labs, currentLab);
         
         if (lab == null) {
            System.exit(0);
         } else {
            labName = lab.getLabName();
         }

serverIp = new ServiceLocator().locateServer(labName);
         frame = new JFrame();
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         frame.setAlwaysOnTop(true);
         final JPanel mapPanel = lab.getPanel();
         final TutorLabelProcessor processor = new TutorLabelProcessor(serverIp);
         processor.processLabels(mapPanel);
         frame.setTitle(String.format("Democall %1s - Tutor Client (%1s)", Constants.VERSION, lab.getLabDescription()));
         frame.setLayout(new BorderLayout());
         frame.add(BorderLayout.NORTH, new QueuePanel());
         frame.add(BorderLayout.CENTER, mapPanel);
         frame.pack();
         frame.setVisible(true);

//         final Timer timer = new Timer(true);
//         timer.scheduleAtFixedRate(new TimerTask() {
//
//            @Override
//            public void run() {
//               final Collection<Integer> queue = new RequestSender(serverIp).requestQueue();
//               processor.update(queue);
//            }
//         }, 0, Constants.TUTOR_CLIENT_POLL);
         
         final ObjectInputStream ois = new RequestSender(serverIp).registerTutorClient();
         
         new Thread(new Runnable(){

public void run() {
               while(true) {
                  try {
                     @SuppressWarnings("unchecked")
                     Collection<Integer> queue = (Collection<Integer>)ois.readObject();
//                     System.out.println(queue);
                     processor.update(queue);
                  } catch (Exception ex) {
                     Logger.getLogger(TutorClient.class.getName()).log(Level.SEVERE, null, ex);
                     break;
                  }
               }
            }
         }).start();
         
         
      // dynamic font resize based on window size
      
      final int defaultSize = Constants.DEFAULT_MAP_FONT_SIZE;
      final int defaultWidth = mapPanel.getWidth();
      
      frame.addComponentListener(new ComponentAdapter() {
         
         @Override
         public void componentResized(ComponentEvent e) {
            int newWidth = mapPanel.getWidth();
            float scaleFactor = (float)newWidth / (float)defaultWidth;
            int newFontSize = Math.round(defaultSize * scaleFactor);
            processor.resizeFonts(newFontSize);
         }

});

} catch (InvalidComputerNameException ex) {
         JOptionPane.showMessageDialog(frame, ex.getMessage(), "Error getting computer name.", JOptionPane.ERROR_MESSAGE);
      } catch (ServiceNotFoundException ex) {
         JOptionPane.showMessageDialog(frame, "Could not connect to server.", "Connection error", JOptionPane.ERROR_MESSAGE);
      } catch (Exception ex) {
         LOG.log(Level.SEVERE, null, ex);
      }
   }

@SuppressWarnings("ResultOfObjectAllocationIgnored")
   public static void main(final String[] args) {

//      System.out.println("Tutor Client");
      
//      final String name = "SBEASTCAL1-31";      
//      final String name = "SB318-10";

final String name = args.length > 0 ? args[0] : null;
      
      final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME");

new TutorClient(nameResolver);
   }

}

package clients;

/**
 *
 * @author Mark
 */
public class TutorClient {

private static final Logger LOG = Logger.getLogger(TutorClient.class.getName());
   
   private String serverIp;

@SuppressWarnings("rawtypes")
   public TutorClient(final ComputerNameResolver nameResolver) {

JFrame frame = null;
      
      try {
         nameResolver.resolve();
         
         String labName = nameResolver.getLabName();

public void run() {
               while(true) {
                  try {
                     @SuppressWarnings("unchecked")
                     Collection<Integer> queue = (Collection<Integer>)ois.readObject();
                     System.out.println(queue);
                     processor.update(queue);
                  } catch (Exception ex) {
                     Logger.getLogger(TutorClient.class.getName()).log(Level.SEVERE, null, ex);
                     break;
                  }
               }
            }
         }).start();
         
         
      // dynamic font resize based on window size
      
      final int defaultSize = Constants.DEFAULT_MAP_FONT_SIZE;
      final int defaultWidth = mapPanel.getWidth();
      
      frame.addComponentListener(new ComponentAdapter() {
         
         @Override
         public void componentResized(ComponentEvent e) {
            int newWidth = mapPanel.getWidth();
            float scaleFactor = (float)newWidth / (float)defaultWidth;
            int newFontSize = Math.round(defaultSize * scaleFactor);
            processor.resizeFonts(newFontSize);
         }

});

@SuppressWarnings("ResultOfObjectAllocationIgnored")
   public static void main(final String[] args) {

System.out.println("Tutor Client");
      
//      final String name = "SBEASTCAL1-31";      
      final String name = "SB318-10";

//      final String name = args.length > 0 ? args[0] : null;
      
      final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME");

new TutorClient(nameResolver);
   }

}

Ignore Space Show notes View src/server/RequestThread.java
package server; import constants.Constants; import gui.processors.AbstractLabelProcessor; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.ObjectOutputStream; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; /** * * @author Mark / public class RequestThread extends Thread { private static final Logger LOG = Logger.getLogger(RequestThread.class.getName()); private final AbstractLabelProcessor processor; private final Socket socket; private boolean dontClose = false; public RequestThread(final AbstractLabelProcessor processor, final Socket socket) { super(); super.setDaemon(true); this.processor = processor; this.socket = socket; } @Override public void run() { try { final BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); final String message = reader.readLine(); if (message != null) { // readLine returns null if buffer is empty processMessage(message); } if(!dontClose) { socket.close(); } } catch (IOException ex) { LOG.log(Level.SEVERE, null, ex); } } public void processMessage(final String message) { // System.out.println(message); final String[] messageBits = message.split(" "); final String performative = messageBits[0]; final int machineId = Integer.parseInt(messageBits[1]); if ("request".equals(performative)) { processor.request(machineId); } else if ("cancel".equals(performative)) { processor.cancel(machineId); } else if ("queue".equals(performative)) { try { final ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream()); oos.writeObject(processor.getQueue()); oos.close(); } catch (IOException ex) { LOG.log(Level.SEVERE, null, ex); } } else if ("register".equals(performative)) { try { final ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream()); oos.writeObject(processor.getQueue()); oos.flush(); Constants.PERSISTENT_SOCKETS.add(oos); dontClose = true; } catch (IOException ex) { LOG.log(Level.SEVERE, null, ex); } } else { LOG.log(Level.SEVERE, "Unknown command: {0}", performative); } } } package server; import constants.Constants; import gui.processors.AbstractLabelProcessor; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.ObjectOutputStream; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; /* * * @author Mark */ public class RequestThread extends Thread { private static final Logger LOG = Logger.getLogger(RequestThread.class.getName()); private final AbstractLabelProcessor processor; private final Socket socket; private boolean dontClose = false; public RequestThread(final AbstractLabelProcessor processor, final Socket socket) { super(); super.setDaemon(true); this.processor = processor; this.socket = socket; } @Override public void run() { try { final BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); final String message = reader.readLine(); if (message != null) { // readLine returns null if buffer is empty processMessage(message); } if(!dontClose) { socket.close(); } } catch (IOException ex) { LOG.log(Level.SEVERE, null, ex); } } public void processMessage(final String message) { final String[] messageBits = message.split(" "); final String performative = messageBits[0]; final int machineId = Integer.parseInt(messageBits[1]); if ("request".equals(performative)) { processor.request(machineId); } else if ("cancel".equals(performative)) { processor.cancel(machineId); } else if ("queue".equals(performative)) { try { final ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream()); oos.writeObject(processor.getQueue()); oos.close(); } catch (IOException ex) { LOG.log(Level.SEVERE, null, ex); } } else if ("register".equals(performative)) { try { final ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream()); oos.writeObject(processor.getQueue()); oos.flush(); Constants.PERSISTENT_SOCKETS.add(oos); dontClose = true; } catch (IOException ex) { LOG.log(Level.SEVERE, null, ex); } } else { LOG.log(Level.SEVERE, "Unknown command: {0}", performative); } } }

Ignore Space Show notes View

src/server/RequestThread.java

package server;

import constants.Constants;
import gui.processors.AbstractLabelProcessor;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Mark
 */
public class RequestThread extends Thread {

private static final Logger LOG = Logger.getLogger(RequestThread.class.getName());   
   
   private final AbstractLabelProcessor processor;
   private final Socket socket;
   private boolean dontClose = false;

public RequestThread(final AbstractLabelProcessor processor, final Socket socket) {
      super();
      super.setDaemon(true);
      this.processor = processor;
      this.socket = socket;
   }

@Override
   public void run() {
      try {
         final BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
         final String message = reader.readLine();
         if (message != null) {  // readLine returns null if buffer is empty
            processMessage(message);
         }
         if(!dontClose) {
            socket.close();
         }
      } catch (IOException ex) {
         LOG.log(Level.SEVERE, null, ex);
      }
   }

public void processMessage(final String message) {
      
//      System.out.println(message);
      
      final String[] messageBits = message.split(" ");

final String performative = messageBits[0];
      final int machineId = Integer.parseInt(messageBits[1]);

if ("request".equals(performative)) {
         processor.request(machineId);
      } else if ("cancel".equals(performative)) {
         processor.cancel(machineId);
      } else if ("queue".equals(performative)) {
         try {
            final ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
            oos.writeObject(processor.getQueue());
            oos.close();
         } catch (IOException ex) {
            LOG.log(Level.SEVERE, null, ex);
         } 
      } else if ("register".equals(performative)) {
         try {
            final ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
            oos.writeObject(processor.getQueue());
            oos.flush();
            Constants.PERSISTENT_SOCKETS.add(oos);
            dontClose = true;
         } catch (IOException ex) {
            LOG.log(Level.SEVERE, null, ex);
         } 
      } else {
         LOG.log(Level.SEVERE, "Unknown command: {0}", performative);
      }

}

package server;

/**
 *
 * @author Mark
 */
public class RequestThread extends Thread {

public RequestThread(final AbstractLabelProcessor processor, final Socket socket) {
      super();
      super.setDaemon(true);
      this.processor = processor;
      this.socket = socket;
   }

public void processMessage(final String message) {
      final String[] messageBits = message.split(" ");

final String performative = messageBits[0];
      final int machineId = Integer.parseInt(messageBits[1]);

}

Ignore Space Show notes View src/server/Server.java
package server; import constants.Constants; import discovery.computername.ComputerNameResolver; import discovery.computername.OtagoComputerNameResolver; import discovery.server.BroadcastResponder; import gui.Lab; import gui.LabRegistry; import gui.QueuePanel; import gui.processors.AbstractLabelProcessor; import gui.processors.ServerLabelProcessor; import java.awt.BorderLayout; import java.awt.event.; import java.io.IOException; import javax.swing.GroupLayout; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.LayoutStyle; /* * * @author Mark / public final class Server { private Server() { } public static void main(final String[] args) throws IOException { // System.out.println("Server"); // final String name = "SBEASTCAL1-01"; // final String name = "SB317-1"; // final String name = "SB318-1"; final String name = args.length > 0 ? args[0] : null; final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME"); nameResolver.resolve(); final String labName = nameResolver.getLabName(); final JFrame frame = new JFrame(); frame.setLayout(new BorderLayout()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); final LabRegistry registry = new LabRegistry(); final Lab lab = registry.getLab(labName); if (lab == null) { JOptionPane.showMessageDialog(frame, "There is no map for this lab yet.\nThe lab ID is : " + labName, "No map", JOptionPane.ERROR_MESSAGE); System.exit(Constants.EXIT_NO_MAP_FOUND); } final JPanel mapPanel = lab.getPanel(); final AbstractLabelProcessor processor = new ServerLabelProcessor(); processor.processLabels(mapPanel); frame.setTitle(String.format("Democall %1s - Server (%1s)", Constants.VERSION, lab.getLabDescription())); QueuePanel queuePanel = new QueuePanel(); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(frame.getContentPane()); frame.getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(GroupLayout.Alignment.LEADING) .addComponent(queuePanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(mapPanel, GroupLayout.Alignment.TRAILING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)); layout.setVerticalGroup( layout.createParallelGroup(GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addComponent(queuePanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED) .addComponent(mapPanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))); frame.pack(); frame.setVisible(true); // dynamic font resize based on window size final int defaultSize = Constants.DEFAULT_MAP_FONT_SIZE; final int defaultWidth = mapPanel.getWidth(); frame.addComponentListener(new ComponentAdapter() { @Override public void componentResized(ComponentEvent e) { int newWidth = mapPanel.getWidth(); float scaleFactor = (float)newWidth / (float)defaultWidth; int newFontSize = Math.round(defaultSize scaleFactor); processor.resizeFonts(newFontSize); } }); new ApplicationHandler(processor).start(); new BroadcastResponder(labName).start(); } } package server; import constants.Constants; import discovery.computername.ComputerNameResolver; import discovery.computername.OtagoComputerNameResolver; import discovery.server.BroadcastResponder; import gui.Lab; import gui.LabRegistry; import gui.QueuePanel; import gui.processors.AbstractLabelProcessor; import gui.processors.ServerLabelProcessor; import java.awt.BorderLayout; import java.awt.event.; import java.io.IOException; import javax.swing.GroupLayout; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.LayoutStyle; /* * * @author Mark / public final class Server { private Server() { } public static void main(final String[] args) throws IOException { System.out.println("Server"); // final String name = "SBEASTCAL1-01"; // final String name = "SB317-1"; final String name = "SB318-1"; // final String name = args.length > 0 ? args[0] : null; final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME"); nameResolver.resolve(); final String labName = nameResolver.getLabName(); final JFrame frame = new JFrame(); frame.setLayout(new BorderLayout()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); final LabRegistry registry = new LabRegistry(); final Lab lab = registry.getLab(labName); if (lab == null) { JOptionPane.showMessageDialog(frame, "There is no map for this lab yet.\nThe lab ID is : " + labName, "No map", JOptionPane.ERROR_MESSAGE); System.exit(Constants.EXIT_NO_MAP_FOUND); } final JPanel mapPanel = lab.getPanel(); final AbstractLabelProcessor processor = new ServerLabelProcessor(); processor.processLabels(mapPanel); frame.setTitle(String.format("Democall %1s - Server (%1s)", Constants.VERSION, lab.getLabDescription())); QueuePanel queuePanel = new QueuePanel(); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(frame.getContentPane()); frame.getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(GroupLayout.Alignment.LEADING) .addComponent(queuePanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(mapPanel, GroupLayout.Alignment.TRAILING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)); layout.setVerticalGroup( layout.createParallelGroup(GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addComponent(queuePanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED) .addComponent(mapPanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))); frame.pack(); frame.setVisible(true); // dynamic font resize based on window size final int defaultSize = Constants.DEFAULT_MAP_FONT_SIZE; final int defaultWidth = mapPanel.getWidth(); frame.addComponentListener(new ComponentAdapter() { @Override public void componentResized(ComponentEvent e) { int newWidth = mapPanel.getWidth(); float scaleFactor = (float)newWidth / (float)defaultWidth; int newFontSize = Math.round(defaultSize scaleFactor); processor.resizeFonts(newFontSize); } }); new ApplicationHandler(processor).start(); new BroadcastResponder(labName).start(); } }

Ignore Space Show notes View

src/server/Server.java

package server;

import constants.Constants;
import discovery.computername.ComputerNameResolver;
import discovery.computername.OtagoComputerNameResolver;
import discovery.server.BroadcastResponder;
import gui.Lab;
import gui.LabRegistry;
import gui.QueuePanel;
import gui.processors.AbstractLabelProcessor;
import gui.processors.ServerLabelProcessor;
import java.awt.BorderLayout;
import java.awt.event.*;
import java.io.IOException;
import javax.swing.GroupLayout;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.LayoutStyle;

/**
 *
 * @author Mark
 */
public final class Server {

private Server() {
   }   
   
   public static void main(final String[] args) throws IOException {

//         System.out.println("Server");
      
//      final String name = "SBEASTCAL1-01";          
//      final String name = "SB317-1";          
//      final String name = "SB318-1";

final String name = args.length > 0 ? args[0] : null;
      
      final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME");
      
      nameResolver.resolve();
      
      final String labName = nameResolver.getLabName();

final JFrame frame = new JFrame();
      frame.setLayout(new BorderLayout());
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

final LabRegistry registry = new LabRegistry();
      final Lab lab = registry.getLab(labName);

if (lab == null) {
          JOptionPane.showMessageDialog(frame, "There is no map for this lab yet.\nThe lab ID is : " + labName, "No map", JOptionPane.ERROR_MESSAGE);
          System.exit(Constants.EXIT_NO_MAP_FOUND);
      }

final JPanel mapPanel = lab.getPanel();

final AbstractLabelProcessor processor = new ServerLabelProcessor();
      processor.processLabels(mapPanel);

frame.setTitle(String.format("Democall %1s - Server (%1s)", Constants.VERSION, lab.getLabDescription()));
      
      QueuePanel queuePanel = new QueuePanel();
      
      javax.swing.GroupLayout layout = new javax.swing.GroupLayout(frame.getContentPane());
      frame.getContentPane().setLayout(layout);
      
      layout.setHorizontalGroup(
         layout.createParallelGroup(GroupLayout.Alignment.LEADING)
         .addComponent(queuePanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
         .addComponent(mapPanel, GroupLayout.Alignment.TRAILING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE));
      
      layout.setVerticalGroup(
         layout.createParallelGroup(GroupLayout.Alignment.LEADING)
         .addGroup(layout.createSequentialGroup()
         .addComponent(queuePanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
         .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
         .addComponent(mapPanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)));    
      
      frame.pack();
      frame.setVisible(true);
      
      // dynamic font resize based on window size
      
      final int defaultSize = Constants.DEFAULT_MAP_FONT_SIZE;
      final int defaultWidth = mapPanel.getWidth();
      
      frame.addComponentListener(new ComponentAdapter() {
         
         @Override
         public void componentResized(ComponentEvent e) {
            int newWidth = mapPanel.getWidth();
            float scaleFactor = (float)newWidth / (float)defaultWidth;
            int newFontSize = Math.round(defaultSize * scaleFactor);
            processor.resizeFonts(newFontSize);
         }

});

new ApplicationHandler(processor).start();
      new BroadcastResponder(labName).start();
   }

}

package server;

/**
 *
 * @author Mark
 */
public final class Server {

private Server() {
   }   
   
   public static void main(final String[] args) throws IOException {

System.out.println("Server");
      
//      final String name = "SBEASTCAL1-01";          
//      final String name = "SB317-1";          
      final String name = "SB318-1";

//      final String name = args.length > 0 ? args[0] : null;
      
      final ComputerNameResolver nameResolver = new OtagoComputerNameResolver(name, "COMPUTERNAME");
      
      nameResolver.resolve();
      
      final String labName = nameResolver.getLabName();

final JFrame frame = new JFrame();
      frame.setLayout(new BorderLayout());
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

final LabRegistry registry = new LabRegistry();
      final Lab lab = registry.getLab(labName);

final JPanel mapPanel = lab.getPanel();

final AbstractLabelProcessor processor = new ServerLabelProcessor();
      processor.processLabels(mapPanel);

});

new ApplicationHandler(processor).start();
      new BroadcastResponder(labName).start();
   }

}

Show line notes below