Examples with CEndlessHelperThread com.google.security.zynamics.zylib.gui.ProgressDialogs.CEndlessHelperThread used on opensource projects

Example 1 with CEndlessHelperThread

use of com.google.security.zynamics.zylib.gui.ProgressDialogs.CEndlessHelperThread in project binnavi by google.

the class UpdateCheckHelper method checkForUpdatesWithUi.

/**
   * Checks for available product updates and displays the results in a user interface.
   * 
   * @param parent a {@link Window} to be used as a parent for modal dialogs. Can be {@code null}.
   * @param productName the name of the product to check for updates. Should not include a leading
   *        "zynamics ".
   * @param currentVersion the version string of the product that denotes the current version (i.e.
   *        "4.0.0").
   * @param currentChannel the release channel to check for updates. This can be used to distinguish
   *        beta versions ("testing") from release versions ("stable").
   */
public static void checkForUpdatesWithUi(final Window parent, final String productName, final String currentVersion, final String currentChannel) {
    final URL checkUrl;
    try {
        checkUrl = new URL(String.format("%s/%s/%s", UPDATE_CHECK_BASE_URL, productName.toLowerCase(), currentChannel.toLowerCase()));
    } catch (final MalformedURLException e) {
        // Should never happen
        throw new RuntimeException("Malformed URL template", e);
    }
    final List<String> lines = new ArrayList<String>();
    final CEndlessHelperThread helper = new CEndlessHelperThread() {

        @Override
        protected void runExpensiveCommand() throws Exception {
            final long startTime = new Date().getTime();
            // Read the actual version info
            lines.addAll(StreamUtils.readLinesFromReader(new InputStreamReader(checkUrl.openStream())));
            // Make this dialog visible for at least 400 msec so that users
            // have a change to read the "Checking for updates..." text.
            final long duration = new Date().getTime() - startTime;
            if (duration < 400) {
                Thread.sleep(400 - duration);
            }
        }
    };
    CEndlessProgressDialog.show(parent, System.getProperty(CMessageBox.DEFAULT_WINDOW_TITLE_PROPERTY), "Checking for updates...", helper);
    final Exception e = helper.getException();
    if (e instanceof FileNotFoundException) {
        CMessageBox.showWarning(parent, "Could not check for updates. " + "The update site is unavailable.");
        return;
    }
    if (lines.isEmpty()) {
        CMessageBox.showWarning(parent, "Could not check for updates. " + "The update site returned no data.");
        return;
    }
    // the form YYYY-MM-DD (to be used later)
    if ((lines.size() < 2) || !lines.get(1).matches("\\d{4}-\\d\\d-\\d\\d")) {
        CMessageBox.showWarning(parent, "Could not check for updates. " + "Could not parse the response.");
        return;
    }
    final String remoteVersion = lines.get(0);
    final int result = versionCompare(currentVersion, remoteVersion);
    if (result < 0) {
        CMessageBox.showInformation(parent, String.format("A newer version (%s) is available.", remoteVersion));
        return;
    }
    if (result >= 0) {
        CMessageBox.showInformation(parent, String.format("Your version of zynamics %s is up to date.", productName));
        return;
    }
}