/** * 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; }
byte[] getJar(String address) { // System.out.println("getJar: "+address); byte[] data; try { URL url = new URL(address); IJ.showStatus("Connecting to " + IJ.URL); URLConnection uc = url.openConnection(); int len = uc.getContentLength(); if (IJ.debugMode) IJ.log("Updater (url): " + address + " " + len); if (len <= 0) return null; String name = address.contains("wsr") ? "daily build (" : "ij.jar ("; IJ.showStatus("Downloading " + name + IJ.d2s((double) len / 1048576, 1) + "MB)"); InputStream in = uc.getInputStream(); data = new byte[len]; int n = 0; while (n < len) { int count = in.read(data, n, len - n); if (count < 0) throw new EOFException(); n += count; IJ.showProgress(n, len); } in.close(); } catch (IOException e) { if (IJ.debugMode) IJ.log("" + e); return null; } if (IJ.debugMode) IJ.wait(6000); return data; }
public void fun(URLConnection connection) { try { connection.connect(); // print header fields Map<String, List<String>> headers = connection.getHeaderFields(); for (Map.Entry<String, List<String>> entry : headers.entrySet()) { String key = entry.getKey(); for (String value : entry.getValue()) System.out.println(key + ": " + value); } // print convenience functions System.out.println("----------"); System.out.println("getContentType: " + connection.getContentType()); System.out.println("getContentLength: " + connection.getContentLength()); System.out.println("getContentEncoding: " + connection.getContentEncoding()); System.out.println("getDate: " + connection.getDate()); System.out.println("getExpiration: " + connection.getExpiration()); System.out.println("getLastModifed: " + connection.getLastModified()); System.out.println("----------"); Scanner in = new Scanner(connection.getInputStream()); // print first ten lines of contents for (int n = 1; in.hasNextLine() && n <= 10; n++) System.out.println(in.nextLine()); if (in.hasNextLine()) System.out.println(". . ."); } catch (IOException e) { e.printStackTrace(); } }
public static byte[] download(String urlString, String name) { int maxLength = 52428800; // 50MB URL url = null; boolean unknownLength = false; byte[] data = null; ; int n = 0; try { url = new URL(urlString); if (IJ.debugMode) IJ.log("PluginInstaller: " + urlString + " " + url); if (url == null) return null; URLConnection uc = url.openConnection(); int len = uc.getContentLength(); unknownLength = len < 0; if (unknownLength) len = maxLength; if (name != null) IJ.showStatus("Downloading " + url.getFile()); InputStream in = uc.getInputStream(); data = new byte[len]; int lenk = len / 1024; while (n < len) { int count = in.read(data, n, len - n); if (count < 0) break; n += count; if (name != null) IJ.showStatus("Downloading " + name + " (" + (n / 1024) + "/" + lenk + "k)"); IJ.showProgress(n, len); } in.close(); } catch (Exception e) { String msg = "" + e; if (!msg.contains("://")) msg += "\n " + urlString; IJ.error("Plugin Installer", msg); return null; } finally { IJ.showProgress(1.0); } if (name != null) IJ.showStatus(""); if (unknownLength) { byte[] data2 = data; data = new byte[n]; for (int i = 0; i < n; i++) data[i] = data2[i]; } return data; }
public static void download(String index, String fname) throws Exception { int avd = Integer.parseInt(index.split("-")[0]); String type; URL ylink_download; int dindex = Integer.parseInt(index.split("-")[1]); if (avd == 3) { ylink_download = new URL((av_set.get(dindex - 1)).split("\n")[0]); type = (av_set.get(dindex - 1)).split("\n")[1]; } else if (avd == 2) { ylink_download = new URL((video_set.get(dindex - 1)).split("\n")[0]); type = (video_set.get(dindex - 1)).split("\n")[1]; } else if (avd == 1) { ylink_download = new URL((audio_set.get(dindex - 1)).split("\n")[0]); type = (audio_set.get(dindex - 1)).split("\n")[1]; } else { System.out.println("Enter valid input"); return; } InputStream is = ylink_download.openStream(); URLConnection con = (URLConnection) ylink_download.openConnection(); double dsize = con.getContentLength() / 1048576; System.out.println("\nDownloading : " + dsize + " MB"); if (con != null) { String wd = System.getProperty("user.dir"); String fo = fname + "." + type.split("%2F")[1]; File f = new File(wd, fo); FileOutputStream fos = new FileOutputStream(f); byte[] buffer = new byte[1024]; progressbar t1 = new progressbar(dsize * 1048576, fo); t1.start(); int len1 = 0; if (is != null) { while ((len1 = is.read(buffer)) > 0) { fos.write(buffer, 0, len1); } } if (fos != null) { fos.close(); } } System.out.println("Download Complete"); }
public void run() { try { fireConnecting(); URLConnection connection = fileURL.openConnection(); int max = connection.getContentLength(); InputStream in = connection.getInputStream(); OutputStream out = new FileOutputStream(fileDest); fireStarted(); fireProgressChange(0, max); { int count = 0; int b = 0; int readCount = 0; byte[] buffer = new byte[1024 * 10]; b = in.read(); while (!canceling && b >= 0) { out.write(b); count += 1; readCount = in.read(buffer, 0, buffer.length); out.write(buffer, 0, readCount); count += readCount; fireProgressChange(count, max); b = in.read(); } } in.close(); out.close(); if (!canceling) { fireDone(fileDest); } else { // fireCancel(fileDest); } } catch (Exception ex) { fireException(ex); ex.printStackTrace(); } }
byte[] getJar(String address) { byte[] data; boolean gte133 = version().compareTo("1.33u") >= 0; try { URL url = new URL(address); URLConnection uc = url.openConnection(); int len = uc.getContentLength(); String name = address.endsWith("ij/ij.jar") ? "daily build" : "ij.jar"; IJ.showStatus("Downloading ij.jar (" + IJ.d2s((double) len / 1048576, 1) + "MB)"); InputStream in = uc.getInputStream(); data = new byte[len]; int n = 0; while (n < len) { int count = in.read(data, n, len - n); if (count < 0) throw new EOFException(); n += count; if (gte133) IJ.showProgress(n, len); } in.close(); } catch (IOException e) { return null; } return data; }
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]; }