Spoon.java 文件源码

/**
 * This is the main procedure for Spoon.
 * 
 * @param a
 *            Arguments are available in the "Get System Info" step.
 */
public static void main(String[] a) throws KettleException {

  try {
    // Bootstrap Kettle
    //
    //  We start Sleak if the VM argument RUN_SLEAK was provided
    Display display = null;
    if (System.getProperties().containsKey("SLEAK")) {
       DeviceData data = new DeviceData();
       data.tracking = true;
       display = new Display(data);
       Sleak sleak = new Sleak();
       sleak.open();
    }
    else {
       display = new Display();
    }

    // The core plugin types don't know about UI classes. Add them in now
    // before the PluginRegistry inits.
    splash = new Splash(display);

    registerUIPluginObjectTypes();

    KettleEnvironment.init();

    List<String> args = new ArrayList<String>(java.util.Arrays.asList(a));

    CommandLineOption[] commandLineOptions = getCommandLineArgs(args);

    initLogging(commandLineOptions);

    PropsUI.init(display, Props.TYPE_PROPERTIES_SPOON);

    CentralLogStore.init(
        PropsUI.getInstance().getMaxNrLinesInLog(), 
        PropsUI.getInstance().getMaxLogLineTimeoutMinutes());

    // remember...

    staticSpoon = new Spoon(display);
    staticSpoon.init(null);
    SpoonFactory.setSpoonInstance(staticSpoon);
    staticSpoon.setDestroy(true);
    GUIFactory.setThreadDialogs(new ThreadGuiResources());

    // listeners
    //
    try {
      staticSpoon.lifecycleSupport.onStart(staticSpoon);
    } catch (LifecycleException e) {
      // if severe, we have to quit
      MessageBox box = new MessageBox(staticSpoon.shell, (e.isSevere() ? SWT.ICON_ERROR : SWT.ICON_WARNING) | SWT.OK);
      box.setMessage(e.getMessage());
      box.open();
    }

    staticSpoon.setArguments(args.toArray(new String[args.size()]));
    staticSpoon.start(commandLineOptions);
  } catch (Throwable t) {
    // avoid calls to Messages i18n method getString() in this block
    // We do this to (hopefully) also catch Out of Memory Exceptions
    //
    t.printStackTrace();
    if (staticSpoon != null) {
      log.logError("Fatal error : " + Const.NVL(t.toString(), Const.NVL(t.getMessage(), "Unknown error"))); //$NON-NLS-1$ //$NON-NLS-2$
      log.logError(Const.getStackTracker(t));
    }
  }

  // Kill all remaining things in this VM!
  System.exit(0);
}