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1 import org.ejen.ext.Version;
22 import java.io.FileWriter  ;
23 import java.awt.*;
24 import java.awt.event.*;
25 import javax.swing.*;
26
27 public class Install {
28 private static final String ejenVersion = "Ejen-" + Version.toString(null);
29 ;
30 public Install() {
31 MainFrame frame = new MainFrame();
32
33 frame.pack();
34 Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
35 Dimension frameSize = frame.getSize();
36
37 if (frameSize.height > screenSize.height) {
38 frameSize.height = screenSize.height;
39 }
40 if (frameSize.width > screenSize.width) {
41 frameSize.width = screenSize.width;
42 }
43 frame.setLocation((screenSize.width - frameSize.width) / 2,
44 (screenSize.height - frameSize.height) / 2);
45 frame.setVisible(true);
46 }
47
48 public static void main(String [] args) {
49 try {
50 UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
51 } catch (Exception e) {
52 e.printStackTrace();
53 }
54 new Install();
55 }
56 public class MainFrame extends JFrame {
57 JPanel contentPanel;
58 JTextField jdkTextField;
59 String javaRuntimeName;
60 String javaVersion;
61 String osName;
62 String osVersion;
63 String osArch;
64 String javaHome;
65 String strippedJavaHome;
66 String fileSeparator;
67 public MainFrame() {
68 enableEvents(AWTEvent.WINDOW_EVENT_MASK);
69 try {
70 getSystemProperties();
71 jInit();
72 } catch (Exception e) {
73 e.printStackTrace();
74 }
75 }
76
77 private void jInit() throws Exception {
78 this.setTitle(ejenVersion + " Installation");
79 contentPanel = (JPanel) (this.getContentPane());
80 contentPanel.setLayout(new BorderLayout());
81 contentPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
82 JTextArea welcome = new JTextArea(javaRuntimeName + ", version "
83 + javaVersion + ",\n" + osName + " " + osVersion + " ("
84 + osArch + ").\n\n" + "Based on the file separator ("
85 + fileSeparator + "), this is a "
86 + (fileSeparator.equals("/") ? "Unix" : "Windows")
87 + " system.\n" + "Your JDK installation directory is:");
88
89 welcome.setEditable(false);
90 welcome.setBackground(contentPanel.getBackground());
91 welcome.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
92 ActionListener actionListener = new ActionListener() {
93 public void actionPerformed(ActionEvent e) {
94 String actionCommand = e.getActionCommand();
95
96 if (actionCommand.equals("fileChooserButton")) {
97 JFileChooser chooser = new JFileChooser();
98
99 chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
100 chooser.setDialogTitle("Choose your JDK installation directory");
101 if (chooser.showOpenDialog(contentPanel)
102 == JFileChooser.APPROVE_OPTION) {
103 jdkTextField.setText(chooser.getSelectedFile().getAbsolutePath());
104 }
105 } else if (actionCommand.equals("okButton")) {
106 install();
107 } else if (actionCommand.equals("cancelButton")) {
108 System.exit(0);
109 }
110 }
111 };
112 JPanel jdkPanel = new JPanel(new BorderLayout());
113
114 jdkTextField = new JTextField(strippedJavaHome);
115 JButton fileChooserButton = new JButton("...");
116
117 fileChooserButton.setActionCommand("fileChooserButton");
118 fileChooserButton.addActionListener(actionListener);
119 jdkPanel.add(jdkTextField, BorderLayout.CENTER);
120 jdkPanel.add(fileChooserButton, BorderLayout.EAST);
121 JPanel actionPanel = new JPanel(new BorderLayout());
122 JTextArea label = new JTextArea("Check those values before installing.");
123
124 label.setEditable(false);
125 label.setBackground(contentPanel.getBackground());
126 label.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
127 JButton okButton = new JButton("Install");
128
129 okButton.setActionCommand("okButton");
130 okButton.addActionListener(actionListener);
131 JButton cancelButton = new JButton("Cancel");
132
133 cancelButton.setActionCommand("cancelButton");
134 cancelButton.addActionListener(actionListener);
135 actionPanel.add(label, BorderLayout.NORTH);
136 actionPanel.add(okButton, BorderLayout.CENTER);
137 actionPanel.add(cancelButton, BorderLayout.EAST);
138 contentPanel.add(welcome, BorderLayout.NORTH);
139 contentPanel.add(jdkPanel, BorderLayout.CENTER);
140 contentPanel.add(actionPanel, BorderLayout.SOUTH);
141 }
142
143 protected void processWindowEvent(WindowEvent e) {
144 super.processWindowEvent(e);
145 if (e.getID() == WindowEvent.WINDOW_CLOSING) {
146 System.exit(0);
147 }
148 }
149
150 private void getSystemProperties() {
151 try {
152 javaRuntimeName = System.getProperty("java.runtime.name");
153 javaVersion = System.getProperty("java.version");
154 osName = System.getProperty("os.name");
155 osVersion = System.getProperty("os.version");
156 osArch = System.getProperty("os.arch");
157 javaHome = System.getProperty("java.home");
158 fileSeparator = System.getProperty("file.separator");
159 if (fileSeparator == null || fileSeparator.length() == 0) {
160 showError("Empty file separator !");
161 }
162 if (!fileSeparator.equals("/") && !fileSeparator.equals("\\")) {
163 showError("Unknown file separator [" + fileSeparator + "] !");
164 }
165 if (javaHome == null) {
166 showError("Could not get java home directory !");
167 }
168 int i = javaHome.lastIndexOf(fileSeparator);
169
170 if (i == -1) {
171 showError("Invalid java home directory: " + javaHome);
172 }
173 strippedJavaHome = javaHome.substring(0, i);
174 } catch (Exception e) {
175 showError(e.toString());
176 }
177 }
178
179 private void showError(String msg) {
180 JOptionPane.showMessageDialog(this,
181 msg + "\n\nPlease send a bug report to <ejen@noos.fr>,"
182 + "\nSorry.",
183 "Fatal error",
184 JOptionPane.ERROR_MESSAGE);
185 System.exit(-1);
186 }
187
188 private void showWarning(String msg) {
189 JOptionPane.showMessageDialog(this, msg, "Warning",
190 JOptionPane.WARNING_MESSAGE);
191 }
192
193 private void showInformation(String msg) {
194 JOptionPane.showMessageDialog(this, msg);
195 }
196
197 private void install() {
198 String fileName;
199 String fileContent;
200
201 if (fileSeparator.equals("/")) {
202 fileName = "java-env";
203 fileContent = "#!/bin/sh\nexport JAVA_HOME=\""
204 + strippedJavaHome + "\"";
205 } else {
206 fileName = "java-env.bat";
207 fileContent = "set JAVA_HOME=\"" + strippedJavaHome + "\"";
208 }
209 FileWriter fw = null;
210
211 try {
212 fw = new FileWriter (fileName);
213 fw.write(fileContent);
214 } catch (Exception e) {
215 showError("Could not create \"" + fileName + "\": "
216 + e.toString());
217 }
218 finally {
219 if (fw != null) {
220 try {
221 fw.close();
222 } catch (Exception e) {}
223 finally {
224 fw = null;
225 }
226 }
227 }
228 if (fileSeparator.equals("/")) {
230 try {
231 Runtime.getRuntime().exec("chmod +x " + fileName);
232 } catch (Exception e) {
233 showWarning("Could not set the execute permission for \""
234 + fileName + "\": " + e.toString()
235 + "\nDo it yourself...");
236 }
237 }
238 showInformation("\"" + fileName + "\" created.\n\n" + ejenVersion
239 + " installation finished.");
240 System.exit(0);
241 }
242 }
243 }
244
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