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3 commits
5e93294c38 ... 11983e0f08

Author SHA1 Message Date
Manuel Thalmann
11983e0f08 Implement basic functionality of MyHashTable 2022-11-16 21:53:44 +01:00
Manuel Thalmann
aaea1a9d87 Prevent application from automatically reloading server 2022-11-16 21:29:39 +01:00
Manuel Thalmann
ce65993bee Add a method for manually reloading a server 2022-11-16 21:29:27 +01:00
2 changed files with 373 additions and 329 deletions
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639
app/src/main/java/ch/nuth/zhaw/exbox/ExBoxFrame.java
View file

@ -1,314 +1,325 @@
package ch.nuth.zhaw.exbox;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.net.URISyntaxException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Set;
/**
* @(#)ExBoxFrame.java
*
* JFC ExBox application
*
* @author K.Rege
* @version 1.00 2014/2/3
* @version 1.01 2016/8/2
* @version 2.00 2017/8/30 Test
* @version 2.01 2018/2/5 AutoscaleFaktor
* @version 2.02 2018/3/12 Reconnect (inspired by S. Kunz)
* @version 2.03 2021/7/24 Test (repeat)
* @version 2.04 2021/9/11 Test as plugin
*/
public class ExBoxFrame extends JFrame implements ActionListener, ItemListener {
private final Dimension UHDTHRESHOLD = new Dimension(2000, 1500);
private final String STANDARDENCODING = "UTF-8";
private JMenuItem connect, exit, open, test, retest, textView, graphicView, clear;
private JMenu menuServer;
private JButton enter;
private JTextField arguments;
private JComboBox<String> history;
private JTextArea output;
private JScrollPane scrollPane;
private CommandExecutor command;
private CommandExecutor unitTest;
private boolean graphicOn;
private GraphicPanel graphic;
private String lastServer;
private String lastTestFile;
public void setFontSize(int size) {
Set<Object> keySet = UIManager.getLookAndFeelDefaults().keySet();
for (Object key : keySet) {
if (key != null && key.toString().toLowerCase().contains("font")) {
Font font = UIManager.getDefaults().getFont(key);
if (font != null) {
font = font.deriveFont((float) size);
UIManager.put(key, font);
}
}
}
}
private void initMenu() {
JMenuBar menuBar = new JMenuBar();
setJMenuBar(menuBar);
JMenu menuFile = new JMenu("File");
menuBar.add(menuFile);
open = new JMenuItem("Open...");
open.addActionListener(this);
menuFile.add(open);
exit = new JMenuItem();
exit.setText("Exit");
exit.addActionListener(this);
menuFile.add(exit);
menuServer = new JMenu("Server");
menuBar.add(menuServer);
connect = new JMenuItem("Connect ...");
connect.addActionListener(this);
menuServer.add(connect);
JMenu menuView = new JMenu("View");
menuBar.add(menuView);
clear = new JMenuItem("Clear");
clear.addActionListener(this);
menuView.add(clear);
textView = new JMenuItem("Text");
textView.addActionListener(this);
menuView.add(textView);
graphicView = new JMenuItem("Graphic");
graphicView.addActionListener(this);
menuView.add(graphicView);
}
private void initJUnit() {
try {
unitTest = ServerFactory.createServer(getPathCompiled().resolve("ExBoxJUnit.class").toString());
test = new JMenuItem("Test ...");
test.addActionListener(this);
menuServer.add(test);
retest = new JMenuItem("Test");
retest.addActionListener(this);
menuServer.add(retest);
} catch (Exception e) {
warning("Test Plugin not found\n");
}
}
private void initComponents() {
setLayout(new BorderLayout());
output = new JTextArea();
scrollPane = new JScrollPane(output);
add(BorderLayout.CENTER, scrollPane);
JPanel panel = new JPanel(new BorderLayout());
panel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
arguments = new JTextField();
arguments.addActionListener(this);
panel.add(BorderLayout.CENTER, arguments);
enter = new JButton("enter");
enter.addActionListener(this);
panel.add(BorderLayout.EAST, enter);
history = new JComboBox<>();
history.addItemListener(this);
panel.add(BorderLayout.SOUTH, history);
add(BorderLayout.SOUTH, panel);
}
/**
* get default path for file open dialog
*/
private Path getPathCompiled() {
try {
Path path = Paths.get(getClass().getProtectionDomain().getCodeSource().getLocation().toURI());
for (String part : getClass().getPackage().getName().split("\\.")) {
path = path.resolve(part);
}
return path;
} catch (URISyntaxException e) {
throw new RuntimeException(e);
}
}
/**
* The constructor
*/
public ExBoxFrame() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception ex) {
ex.printStackTrace();
}
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
double scale = (
screenSize.getWidth() > UHDTHRESHOLD.getWidth() &&
screenSize.getHeight() > UHDTHRESHOLD.getHeight()) ? 2 : 1;
scale = Math.max(scale, Toolkit.getDefaultToolkit().getScreenResolution() / 96.0);
setFontSize((int) (11 * scale));
setSize(
new Dimension((int)(400 * scale), (int)(400 * scale)));
setTitle("ExBox");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
initComponents();
initMenu();
initJUnit();
}
private void warning(String s) {
System.err.println("\nWARNING: " + s + "\n");
}
private void error(String s) {
output.append("\nERROR: " + s + "\n");
}
private void execute(String args) throws Exception {
if (lastServer != null) {
command = ServerFactory.createServer(lastServer);
}
if (!arguments.getText().equals(history.getItemAt(0))
&& !arguments.getText().equals(history.getSelectedItem())) {
history.insertItemAt(arguments.getText(), 0);
}
if (command == null) {
error("no Server connected");
} else {
String res = command.execute(args);
if (graphicOn) {
graphic.setFigure(res);
} else {
output.append(res);
}
}
}
private void setGraphicView() {
if (!graphicOn) {
remove(scrollPane);
graphic = new GraphicPanel();
output.removeNotify();
add(BorderLayout.CENTER, graphic);
graphicOn = true;
validate();
repaint();
}
}
private void setTextView() {
if (graphicOn) {
remove(graphic);
add(BorderLayout.CENTER, scrollPane);
graphicOn = false;
validate();
repaint();
}
}
private String openFileDialog(Path startDirectory, String pattern) {
FileDialog fd = new FileDialog(this, "Open");
if (pattern != null)
fd.setFile(pattern);
if (startDirectory != null)
fd.setDirectory(startDirectory.toString());
fd.setVisible(true);
return fd.getDirectory() + fd.getFile();
}
private void testCommand(boolean retest) throws Exception {
if (!retest) {
lastTestFile = openFileDialog(getPathCompiled(), "*test.class");
}
if (lastTestFile == null) {
output.append("ERROR no Test spezified\n");
} else if (unitTest != null) {
output.append(unitTest.execute(lastTestFile));
}
}
private void connectCommand() throws Exception {
String name = openFileDialog(getPathCompiled(), "*Server.class");
command = ServerFactory.createServer(name);
lastServer = name;
String fullClassName = command.getClass().getName();
String simpleClassName = fullClassName.substring(fullClassName.lastIndexOf('.') + 1);
setTitle("ExBox connected to " + simpleClassName);
}
private void openFile() throws Exception {
String name = openFileDialog(null, null);
try (BufferedReader br = new BufferedReader(
new InputStreamReader(new FileInputStream(name), STANDARDENCODING))) {
StringBuilder b = new StringBuilder();
String line;
while ((line = br.readLine()) != null) {
b.append(line);
b.append('\n');
}
execute(b.toString());
}
}
public void itemStateChanged(ItemEvent e) {
try {
arguments.setText((String) e.getItem());
execute(arguments.getText());
} catch (Throwable ex) {
error(ex.toString());
}
}
public void actionPerformed(ActionEvent e) {
try {
if ((e.getSource() == arguments) || (e.getSource() == enter)) {
execute(arguments.getText());
} else if (e.getSource() == connect) {
connectCommand();
} else if (e.getSource() == test) {
testCommand(false);
} else if (e.getSource() == retest) {
testCommand(true);
} else if (e.getSource() == open) {
openFile();
} else if (e.getSource() == textView) {
setTextView();
} else if (e.getSource() == graphicView) {
setGraphicView();
} else if (e.getSource() == clear) {
output.setText("");
} else if (e.getSource() == exit) {
System.exit(0);
}
} catch (Throwable ex) {
ex.printStackTrace();
error(ex.toString());
}
}
}
package ch.nuth.zhaw.exbox;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.net.URISyntaxException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Set;
/**
* @(#)ExBoxFrame.java
*
* JFC ExBox application
*
* @author K.Rege
* @version 1.00 2014/2/3
* @version 1.01 2016/8/2
* @version 2.00 2017/8/30 Test
* @version 2.01 2018/2/5 AutoscaleFaktor
* @version 2.02 2018/3/12 Reconnect (inspired by S. Kunz)
* @version 2.03 2021/7/24 Test (repeat)
* @version 2.04 2021/9/11 Test as plugin
*/
public class ExBoxFrame extends JFrame implements ActionListener, ItemListener {
private final Dimension UHDTHRESHOLD = new Dimension(2000, 1500);
private final String STANDARDENCODING = "UTF-8";
private JMenuItem connect, reset, exit, open, test, retest, textView, graphicView, clear;
private JMenu menuServer;
private JButton enter;
private JTextField arguments;
private JComboBox<String> history;
private JTextArea output;
private JScrollPane scrollPane;
private CommandExecutor command;
private CommandExecutor unitTest;
private boolean graphicOn;
private GraphicPanel graphic;
private String lastServer;
private String lastTestFile;
public void setFontSize(int size) {
Set<Object> keySet = UIManager.getLookAndFeelDefaults().keySet();
for (Object key : keySet) {
if (key != null && key.toString().toLowerCase().contains("font")) {
Font font = UIManager.getDefaults().getFont(key);
if (font != null) {
font = font.deriveFont((float) size);
UIManager.put(key, font);
}
}
}
}
private void initMenu() {
JMenuBar menuBar = new JMenuBar();
setJMenuBar(menuBar);
JMenu menuFile = new JMenu("File");
menuBar.add(menuFile);
open = new JMenuItem("Open...");
open.addActionListener(this);
menuFile.add(open);
exit = new JMenuItem();
exit.setText("Exit");
exit.addActionListener(this);
menuFile.add(exit);
menuServer = new JMenu("Server");
menuBar.add(menuServer);
connect = new JMenuItem("Connect ...");
connect.addActionListener(this);
menuServer.add(connect);
reset = new JMenuItem("Reset Server...");
reset.addActionListener(this);
menuServer.add(reset);
JMenu menuView = new JMenu("View");
menuBar.add(menuView);
clear = new JMenuItem("Clear");
clear.addActionListener(this);
menuView.add(clear);
textView = new JMenuItem("Text");
textView.addActionListener(this);
menuView.add(textView);
graphicView = new JMenuItem("Graphic");
graphicView.addActionListener(this);
menuView.add(graphicView);
}
private void initJUnit() {
try {
unitTest = ServerFactory.createServer(getPathCompiled().resolve("ExBoxJUnit.class").toString());
test = new JMenuItem("Test ...");
test.addActionListener(this);
menuServer.add(test);
retest = new JMenuItem("Test");
retest.addActionListener(this);
menuServer.add(retest);
} catch (Exception e) {
warning("Test Plugin not found\n");
}
}
private void initComponents() {
setLayout(new BorderLayout());
output = new JTextArea();
scrollPane = new JScrollPane(output);
add(BorderLayout.CENTER, scrollPane);
JPanel panel = new JPanel(new BorderLayout());
panel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
arguments = new JTextField();
arguments.addActionListener(this);
panel.add(BorderLayout.CENTER, arguments);
enter = new JButton("enter");
enter.addActionListener(this);
panel.add(BorderLayout.EAST, enter);
history = new JComboBox<>();
history.addItemListener(this);
panel.add(BorderLayout.SOUTH, history);
add(BorderLayout.SOUTH, panel);
}
/**
* get default path for file open dialog
*/
private Path getPathCompiled() {
try {
Path path = Paths.get(getClass().getProtectionDomain().getCodeSource().getLocation().toURI());
for (String part : getClass().getPackage().getName().split("\\.")) {
path = path.resolve(part);
}
return path;
} catch (URISyntaxException e) {
throw new RuntimeException(e);
}
}
/**
* The constructor
*/
public ExBoxFrame() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception ex) {
ex.printStackTrace();
}
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
double scale = (
screenSize.getWidth() > UHDTHRESHOLD.getWidth() &&
screenSize.getHeight() > UHDTHRESHOLD.getHeight()) ? 2 : 1;
scale = Math.max(scale, Toolkit.getDefaultToolkit().getScreenResolution() / 96.0);
setFontSize((int) (11 * scale));
setSize(
new Dimension((int)(400 * scale), (int)(400 * scale)));
setTitle("ExBox");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
initComponents();
initMenu();
initJUnit();
}
private void warning(String s) {
System.err.println("\nWARNING: " + s + "\n");
}
private void error(String s) {
output.append("\nERROR: " + s + "\n");
}
private void execute(String args) throws Exception {
if (!arguments.getText().equals(history.getItemAt(0))
&& !arguments.getText().equals(history.getSelectedItem())) {
history.insertItemAt(arguments.getText(), 0);
}
if (command == null) {
error("no Server connected");
} else {
String res = command.execute(args);
if (graphicOn) {
graphic.setFigure(res);
} else {
output.append(res);
}
}
}
private void setGraphicView() {
if (!graphicOn) {
remove(scrollPane);
graphic = new GraphicPanel();
output.removeNotify();
add(BorderLayout.CENTER, graphic);
graphicOn = true;
validate();
repaint();
}
}
private void setTextView() {
if (graphicOn) {
remove(graphic);
add(BorderLayout.CENTER, scrollPane);
graphicOn = false;
validate();
repaint();
}
}
private String openFileDialog(Path startDirectory, String pattern) {
FileDialog fd = new FileDialog(this, "Open");
if (pattern != null)
fd.setFile(pattern);
if (startDirectory != null)
fd.setDirectory(startDirectory.toString());
fd.setVisible(true);
return fd.getDirectory() + fd.getFile();
}
private void testCommand(boolean retest) throws Exception {
if (!retest) {
lastTestFile = openFileDialog(getPathCompiled(), "*test.class");
}
if (lastTestFile == null) {
output.append("ERROR no Test spezified\n");
} else if (unitTest != null) {
output.append(unitTest.execute(lastTestFile));
}
}
private void connectCommand() throws Exception {
String name = openFileDialog(getPathCompiled(), "*Server.class");
loadServer(name);
lastServer = name;
String fullClassName = command.getClass().getName();
String simpleClassName = fullClassName.substring(fullClassName.lastIndexOf('.') + 1);
setTitle("ExBox connected to " + simpleClassName);
}
private void resetCommand() throws Exception {
if (lastServer != null) {
loadServer(lastServer);
}
}
private void loadServer(String name) throws Exception {
command = ServerFactory.createServer(name);
}
private void openFile() throws Exception {
String name = openFileDialog(null, null);
try (BufferedReader br = new BufferedReader(
new InputStreamReader(new FileInputStream(name), STANDARDENCODING))) {
StringBuilder b = new StringBuilder();
String line;
while ((line = br.readLine()) != null) {
b.append(line);
b.append('\n');
}
execute(b.toString());
}
}
public void itemStateChanged(ItemEvent e) {
try {
arguments.setText((String) e.getItem());
execute(arguments.getText());
} catch (Throwable ex) {
error(ex.toString());
}
}
public void actionPerformed(ActionEvent e) {
try {
if ((e.getSource() == arguments) || (e.getSource() == enter)) {
execute(arguments.getText());
} else if (e.getSource() == connect) {
connectCommand();
} else if (e.getSource() == reset) {
resetCommand();
} else if (e.getSource() == test) {
testCommand(false);
} else if (e.getSource() == retest) {
testCommand(true);
} else if (e.getSource() == open) {
openFile();
} else if (e.getSource() == textView) {
setTextView();
} else if (e.getSource() == graphicView) {
setGraphicView();
} else if (e.getSource() == clear) {
output.setText("");
} else if (e.getSource() == exit) {
System.exit(0);
}
} catch (Throwable ex) {
ex.printStackTrace();
error(ex.toString());
}
}
}

63
app/src/main/java/ch/nuth/zhaw/exbox/MyHashtable.java
View file

@ -6,37 +6,69 @@ import java.util.Set;
@SuppressWarnings("unchecked")
public class MyHashtable<K, V> implements Map<K, V> {
private int capacity;
private int size;
private K[] keys = (K[]) new Object[10];
private V[] values = (V[]) new Object[10];
public MyHashtable(int size) {
capacity = size;
clear();
}
private boolean hashEquals(Object x, Object y) {
if (x == null || y == null) {
return x == y;
} else {
return x.hashCode() == y.hashCode();
}
}
private int hash(Object k) {
int h = Math.abs(k.hashCode());
return h % keys.length;
}
public MyHashtable(int size) {
// to be done
}
// Removes all mappings from this map (optional operation).
public void clear() {
// to be done
throw new UnsupportedOperationException();
keys = (K[]) new Object[capacity];
values = (V[]) new Object[capacity];
}
// Associates the specified value with the specified key in this map (optional operation).
// Associates the specified value with the specified key in this map (optional
// operation).
public V put(K key, V value) {
// to be done
throw new UnsupportedOperationException();
int hashCode = hash(key);
int index = hashCode;
for (int i = 0; keys[index] != null && !hashEquals(keys[index], key); i++) {
index = hash(hashCode + (int) Math.pow(i, 2));
}
if (keys[index] == null) {
size++;
}
keys[index] = key;
values[index] = value;
return value;
}
// Returns the value to which this map maps the specified key.
public V get(Object key) {
// to be done
throw new UnsupportedOperationException();
for (int i = 0; i < keys.length; i++) {
if (hashEquals(key, keys[i])) {
return values[i];
}
}
return null;
}
// Removes the mapping for this key from this map if present (optional operation).
// Removes the mapping for this key from this map if present (optional
// operation).
public V remove(Object key) {
// to be done (Aufgabe 3)
throw new UnsupportedOperationException();
@ -44,11 +76,11 @@ public class MyHashtable<K, V> implements Map<K, V> {
// Returns the number of key-value mappings in this map.
public int size() {
// to be done
throw new UnsupportedOperationException();
return size;
}
// UnsupportedOperationException ===================================================================
// UnsupportedOperationException
// ===================================================================
// Returns a collection view of the values contained in this map.
public Collection<V> values() {
throw new UnsupportedOperationException();
@ -74,7 +106,8 @@ public class MyHashtable<K, V> implements Map<K, V> {
throw new UnsupportedOperationException();
}
// Copies all of the mappings from the specified map to this map (optional operation).
// Copies all of the mappings from the specified map to this map (optional
// operation).
public void putAll(Map<? extends K, ? extends V> t) {
throw new UnsupportedOperationException();
}