public Node getRootNode() {
return doc.getDocumentElement();
}
public String serializeToString() {
DOMImplementation impl = doc.getImplementation();
DOMImplementationLS implLS = (DOMImplementationLS) impl.getFeature("LS", "3.0");
LSSerializer lsSerializer = implLS.createLSSerializer();
lsSerializer.getDomConfig().setParameter("format-pretty-print", true);
LSOutput lsOutput = implLS.createLSOutput();
lsOutput.setEncoding("UTF-8");