public Object execute(ExecutionEvent event) throws ExecutionException {
TestPageBookView debugView = (TestPageBookView) HandlerUtil.getActivePart(event);
TestViewPage activePage = (TestViewPage) debugView.getCurrentPage();
IResource resource = activePage.getResource();
IPath location = resource.getLocation();
String preFilePath = location.toPortableString();
File preFile = new File(preFilePath);
if (preFile.exists() == false || StringUtils.isEmpty(preFilePath)) {
printErrorDialog("The preprocessing file was not found!");
return null;
}