@Override
  public @NotNull FileBasedIndex.InputFilter getInputFilter() {
    return new DefaultFileTypeSpecificInputFilter(XmlFileType.INSTANCE) {
      @Override
      public boolean acceptInput(final @NotNull VirtualFile file) {
        if (!"xsd".equals(file.getExtension())) {
          return false;
        }
        if (file.isInLocalFileSystem()) {
          return true;
        }
        VirtualFile parent = file.getParent();
        return parent != null && parent.getName().equals("standardSchemas");
      }
    };
  }
@Override
  public @NotNull FileBasedIndex.InputFilter getInputFilter()