gwtp EntryPoint about gwtp HOT 13 CLOSED

public class ApplicationDevEntryPoint extends ApplicationEntryPoint {

  private static final Logger LOG = Logger.getLogger(ApplicationDevEntryPoint.class.getName());

  @Override
  public void onModuleLoad() {
    GWT.setUncaughtExceptionHandler(new UncaughtExceptionHandler() {
      @Override
      public void onUncaughtException(final Throwable e) {
        LOG.severe(getStacktrace(e));
        GWT.log("UncaughtException!", e);
        showExceptionPopup(e);
      }
    });

    Scheduler.get().scheduleDeferred(new ScheduledCommand() {
      @Override
      public void execute() {
        ApplicationDevEntryPoint.super.onModuleLoad();
      }
    });
  }

  /**
   * @return A quote which should scare the developer.
   */
  private String getQuote() {
    String quote = "";

    quote += "[The crew waits quietly as a Reaver ship passes.] \n";
    quote += "Simon: What happens if they board us?  \n";
    quote += "Zoe:   If they take the ship, they'll rape us to death, eat our flesh, and sew our skins into their clothing. \n";
    quote += "       And if we're very, very lucky they'll do it in that order. \n\n";

    return quote;
  }

  /**
   * @return The stacktrace to the given exception.
   */
  private String getStacktrace(final Throwable throwable) {
    String stacktrace = "";
    Throwable cur = throwable;

    while (cur != null) {
      StackTraceElement[] stackTraceElements = cur.getStackTrace();
      stacktrace += cur.toString() + "\n";
      for (int i = 0; i < stackTraceElements.length; i++) {
        stacktrace += "    at " + stackTraceElements[i] + "\n";
      }
      cur = cur.getCause();
      if (cur != null) {
        stacktrace += "Caused by: ";
      }
    }

    return stacktrace;
  }

  /**
   * Shows the given exception to the user.
   */
  private void showExceptionPopup(final Throwable e) {
    String output = getQuote() + getStacktrace(e);

    DialogBox dialogBox = new DialogBox(true, false);
    DOM.setStyleAttribute(dialogBox.getElement(), "backgroundColor", "#ABCDEF");
    dialogBox.setHTML("<pre style='font-family: monospace; font-size: 0.8em; margin: 0; padding: 10px;'>"
        + output + "</pre>");
    dialogBox.center();
  }

}