how to create an InputStream from a Document or Node

Question

How can I create an InputStream object from a XML Document or Node object to be used in xstream? I need to replace the ??? with some meaningful code. Thanks.

Answer 1

 public static InputStream document2InputStream(Document document)    throws IOException {
      ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
      OutputFormat outputFormat = new OutputFormat(document);
      XMLSerializer serializer = new XMLSerializer(outputStream, outputFormat);
      serializer.serialize(document);
      return new ByteArrayInputStream(outputStream.toByteArray());
 }

This works if you are using apache Xerces implementation, you can also set format parameter with the output format.