[jdom-interest] Outputting documents to Xalan

[Peter Cox]

New to JDOM and XML in general, I having been using JDOM to generate XML
documents to process with Xalan.

The FAQ states:


The org.apache.xalan.xslt.XSLTProcessor class takes as input an input
document, an input stylesheet, and a target to output to. The two input
parameters
must be in the form of an org.apache.xalan.xslt.XSLTInputSource,
which can be constructed from an InputStream. Lucky for you, the
org.jdom.XMLOutputter class writes a JDOM Document to an
OutputStream! So take your JDOM output, pipe it into your XSLT input
(with a
PipedInputStream and PipedOutputStream), and then simply supply a
stylesheet and output as in any other Java and XML application.



Piped I/O ? :( There must be an easier way.

Luckily there is. (Well it worked for me!)




Xalan's XSLTInputSource takes as an argument a org.w3c.dom.Node which
can be generated using a DOMOutputter 
(Other XSLT processors may have similar abilities)


Code fragment follows...

N.B. MUST specify a XercesLiaison argument to the XSLTProcessorFactory
as per note at:
http://xml.apache.org/xalan/usagepatterns.html#dom-in




Document xmlDocument;
XSLTInputSource xslSource;
XSLTResultTarget target;

// initialised elsewhere...

DOMOutputter outputter = new DOMOutputter();

Node node = outputter.output(xmlDocument);
XSLTInputSource xmlSource = new XSLTInputSource(node);

XSLTProcessor processor = XSLTProcessorFactory.getProcessor(
   new org.apache.xalan.xpath.xdom.XercesLiaison());

processor.process(xmlSource, xslSource, target);




Hope this helps,


Pete.


-- 
Peter Cox
peterc at bjs.com.au