SparqlExecutor.java 文件源码

public static void printDocument(Node node, OutputStream out) {
  try {
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
    transformer.setOutputProperty(OutputKeys.METHOD, "xml");
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");

    transformer.transform(
        new DOMSource(node),
        new StreamResult(new OutputStreamWriter(out, "UTF-8")));
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}