public void doSave(IProgressMonitor monitor) {
// TODO Auto-generated method stub

            performSave(monitor, getEditorInput());
            getCommandStack().markSaveLocation();

} 

public void doSaveAs() {
// TODO Auto-generated method stub

         Shell shell = getSite().getShell();
         final IEditorInput input = getEditorInput();

         SaveAsDialog dialog = new SaveAsDialog(shell);