private Node append(final Document doc, final Node parent, final String element,
      final String value) {
    final Element child = doc.createElement(element);
    if (value != null) {
      child.setTextContent(value);
    }
    parent.appendChild(child);
    return child;
  }
The main entry point for processing

@throws Exception if any errors occur.
extensions/geode-modules-session/src/main/java/org/apache/geode/modules/session/installer/Installer.java