/**
* Loads the drawing. By convention this method is invoked on a worker thread.
*
* @param progress A ProgressIndicator to inform the user about the progress of the operation.
* @return The Drawing that was loaded.
*/
protected Drawing loadDrawing(ProgressIndicator progress) throws IOException {
Drawing drawing = createDrawing();
if (getParameter("datafile") != null) {
URL url = new URL(getDocumentBase(), getParameter("datafile"));
URLConnection uc = url.openConnection();
// Disable caching. This ensures that we always request the
// newest version of the drawing from the server.
// (Note: The server still needs to set the proper HTTP caching
// properties to prevent proxies from caching the drawing).
if (uc instanceof HttpURLConnection) {
((HttpURLConnection) uc).setUseCaches(false);
}
// Read the data into a buffer
int contentLength = uc.getContentLength();
InputStream in = uc.getInputStream();
try {
if (contentLength != -1) {
in = new BoundedRangeInputStream(in);
((BoundedRangeInputStream) in).setMaximum(contentLength + 1);
progress.setProgressModel((BoundedRangeModel) in);
progress.setIndeterminate(false);
}
BufferedInputStream bin = new BufferedInputStream(in);
bin.mark(512);
// Read the data using all supported input formats
// until we succeed
IOException formatException = null;
for (InputFormat format : drawing.getInputFormats()) {
try {
bin.reset();
} catch (IOException e) {
uc = url.openConnection();
in = uc.getInputStream();
in = new BoundedRangeInputStream(in);
((BoundedRangeInputStream) in).setMaximum(contentLength + 1);
progress.setProgressModel((BoundedRangeModel) in);
bin = new BufferedInputStream(in);
bin.mark(512);
}
try {
bin.reset();
format.read(bin, drawing, true);
formatException = null;
break;
} catch (IOException e) {
formatException = e;
}
}
if (formatException != null) {
throw formatException;
}
} finally {
in.close();
}
}
return drawing;
}
public static boolean showLicensing() {
if (Config.getLicenseResource() == null) return true;
ClassLoader cl = Main.class.getClassLoader();
URL url = cl.getResource(Config.getLicenseResource());
if (url == null) return true;
String license = null;
try {
URLConnection con = url.openConnection();
int size = con.getContentLength();
byte[] content = new byte[size];
InputStream in = new BufferedInputStream(con.getInputStream());
in.read(content);
license = new String(content);
} catch (IOException ioe) {
Config.trace("Got exception when reading " + Config.getLicenseResource() + ": " + ioe);
return false;
}
// Build dialog
JTextArea ta = new JTextArea(license);
ta.setEditable(false);
final JDialog jd = new JDialog(_installerFrame, true);
Container comp = jd.getContentPane();
jd.setTitle(Config.getLicenseDialogTitle());
comp.setLayout(new BorderLayout(10, 10));
comp.add(new JScrollPane(ta), "Center");
Box box = new Box(BoxLayout.X_AXIS);
box.add(box.createHorizontalStrut(10));
box.add(new JLabel(Config.getLicenseDialogQuestionString()));
box.add(box.createHorizontalGlue());
JButton acceptButton = new JButton(Config.getLicenseDialogAcceptString());
JButton exitButton = new JButton(Config.getLicenseDialogExitString());
box.add(acceptButton);
box.add(box.createHorizontalStrut(10));
box.add(exitButton);
box.add(box.createHorizontalStrut(10));
jd.getRootPane().setDefaultButton(acceptButton);
Box box2 = new Box(BoxLayout.Y_AXIS);
box2.add(box);
box2.add(box2.createVerticalStrut(5));
comp.add(box2, "South");
jd.pack();
final boolean accept[] = new boolean[1];
acceptButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
accept[0] = true;
jd.hide();
jd.dispose();
}
});
exitButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
accept[0] = false;
jd.hide();
jd.dispose();
}
});
// Apply any defaults the user may have, constraining to the size
// of the screen, and default (packed) size.
Rectangle size = new Rectangle(0, 0, 500, 300);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
size.width = Math.min(screenSize.width, size.width);
size.height = Math.min(screenSize.height, size.height);
// Center the window
jd.setBounds(
(screenSize.width - size.width) / 2,
(screenSize.height - size.height) / 2,
size.width,
size.height);
// Show dialog
jd.show();
return accept[0];
}
/** Unpacks a resource to a temp. file */
public static File unpackInstaller(String resourceName) {
// Array to hold all results (this code is slightly more
// generally that it needs to be)
File[] results = new File[1];
URL[] urls = new URL[1];
// Determine size of download
ClassLoader cl = Main.class.getClassLoader();
urls[0] = cl.getResource(Config.getInstallerResource());
if (urls[0] == null) {
Config.trace("Could not find resource: " + Config.getInstallerResource());
return null;
}
int totalSize = 0;
int totalRead = 0;
for (int i = 0; i < urls.length; i++) {
if (urls[i] != null) {
try {
URLConnection connection = urls[i].openConnection();
totalSize += connection.getContentLength();
} catch (IOException ioe) {
Config.trace("Got exception: " + ioe);
return null;
}
}
}
// Unpack each file
for (int i = 0; i < urls.length; i++) {
if (urls[i] != null) {
// Create temp. file to store unpacked file in
InputStream in = null;
OutputStream out = null;
try {
// Use extension from URL (important for dll files)
String extension = new File(urls[i].getFile()).getName();
int lastdotidx = (extension != null) ? extension.lastIndexOf('.') : -1;
if (lastdotidx == -1) {
extension = ".dat";
} else {
extension = extension.substring(lastdotidx);
}
// Create output stream
results[i] = File.createTempFile("jre", extension);
results[i].deleteOnExit();
out = new FileOutputStream(results[i]);
// Create inputstream
URLConnection connection = urls[i].openConnection();
in = connection.getInputStream();
int read = 0;
byte[] buf = new byte[BUFFER_SIZE];
while ((read = in.read(buf)) != -1) {
out.write(buf, 0, read);
// Notify delegate
totalRead += read;
if (totalRead > totalSize && totalSize != 0) totalSize = totalRead;
// Update UI
if (totalSize != 0) {
int percent = (100 * totalRead) / totalSize;
setStepText(STEP_UNPACK, Config.getWindowStepProgress(STEP_UNPACK, percent));
}
}
} catch (IOException ie) {
Config.trace("Got exception while downloading resource: " + ie);
for (int j = 0; j < results.length; j++) {
if (results[j] != null) results[j].delete();
}
return null;
} finally {
try {
if (in != null) in.close();
if (out != null) out.close();
} catch (IOException io) {
/* ignore */
}
}
}
}
setStepText(STEP_UNPACK, Config.getWindowStep(STEP_UNPACK));
return results[0];
}