In thread http://www.daniweb.com/forums/thread157149.html I was asking for different alternatives for passing a node as a parameter to an XSL stylesheet called from Java using saxon.
I set up on using the XdmNode object as a parameter for passing the parameter and here is a code extract:
// create a XSLT transformer
XsltTransformer trans = comp.compile(new StreamSource(MyClass.getResourceAsStream(XSLT_FILE))).load();
// [...]
// sample XML to pass as parameter
String str = "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>\n" +
"<opsys:operatingSystems xmlns:opsys=\"http://osnews.pl/operating-systems\">\n" +
" <opsys:operatingSystem id=\"1\">\n" +
" <opsys:name>GNU/Linux</opsys:name>\n" +
" <opsys:code>GNU</opsys:code>\n" +
" </opsys:operatingSystem>\n" +
" <opsys:operatingSystem id=\"2\">\n" +
" <opsys:name>Microsoft</opsys:name>\n" +
" <opsys:code>MSFT</opsys:code>\n" +
" </opsys:operatingSystem>\n" +
"</opsys:operatingSystems>";
ByteArrayInputStream byteStream = new ByteArrayInputStream(str.getBytes());
StringReader reader = new StringReader(str);
SAXSource source = new SAXSource(new XMLFilterImpl(), new InputSource(reader));
// this throws a null pointer exception in build method
XdmNode node = db.build(source);
// this works as intended
// XdmNode node = db.build(
// new File("test.xml"));
trans.setParameter(new QName("operatingSystems"), node);Now as you can see in the above example, when I use a file as an input, the node is created fine and I can access the node with custom XML from the operatingSystems parameter in my XSLT (cool).
For some reason, when using a Source as an input for DocumentBuilder's build method, a NullPointerException is called.
The docs for DocumentBuilder: http://www.saxonica.com/documentation/javadoc/net/sf/saxon/s9api/DocumentBuilder.html#build(javax.xml.transform.Source) claim that I should be using either SAXSource or JAXP source or DOMSource or PullSource. I tried a few but they all cause this exception to be thrown.
Any ideas before I start debugging saxon libraries?