On 12/13/2011 12:43 PM, Rob Sargent wrote:
I'm using fop-1.0 compile a year or so ago. Perhaps I just need to
download the trunk? Certainly happy to do that given a glimmer of hope
that it will solve my problem.
I think I've hit a catch-22 when generating IF
(application/X-fop-areatree) output. To generate this format I believe
one is forced to use "factory.newTransformer.transform(xsltSource)" as
opposed to the no-arg constructor. And once one has done that one
cannot use transformer.setParameter(key, value).
What?
Why not?
This makes using<xsl:param> in the IF-generating style-sheet neigh
impossible. Or I'm off my rocker (again).
It's certainly possible to set XSLT params. Here's some code almost
verbatim from what I'm working on. It makes references to a `conf'
object which holds pre-configured XSLT transformer factories etc, but
you're probably just going to allocate the factory directory.
FopFactory fopFactory = conf.getFopFactory();
// Create a user agent (a fop processor, really) to do the
work.
FOUserAgent userAgent = fopFactory.newFOUserAgent();
//Create an instance of the target renderer so the
XMLRenderer can use its font setup
Renderer targetRenderer =
userAgent.getRendererFactory().createRenderer(
userAgent, outMimeType);
//Create the XMLRenderer to create the area tree XML
XMLRenderer xmlRenderer = new XMLRenderer();
xmlRenderer.setUserAgent(userAgent);
// TODO, probably only in fop svn:
// use setTransformerHandler to output directly to W3C DOM
insead of
// serializing to file.
//Tell the XMLRenderer to mimic the target renderer
xmlRenderer.mimicRenderer(targetRenderer);
//Make sure the prepared XMLRenderer is used
userAgent.setRendererOverride(xmlRenderer);
userAgent.setURIResolver(uriResolver);
// Construct fop (the MIME type here is unimportant due to
the override
// on the user agent)
Fop fop = fopFactory.newFop(null, userAgent, atOutStream);
// Setup XSLT
TransformerFactory transformerFactory =
conf.getTransformerFactory();
Transformer transformer =
transformerFactory.newTransformer( xsltSource );
transformer.setParameter("classadSection", classadSection);
// Resulting SAX events (the generated FO) must be piped
through to FOP
Result res = new SAXResult(fop.getDefaultHandler());
File f = File.createTempFile("xslfo", ".xml");
FileOutputStream fos = new FileOutputStream(f);
Result res2 = new StreamResult(fos);
transformer.transform( xmlInStream, res2 );
fos.close();
Transformer transformer = null;
TransformerFactory factory = TransformerFactory.newInstance();
if (xsltSource == null) {
// Not generating IF
transformer = factory.newTransformer();
}
else {
// Generating IF, xsltSource is
transformer = factory.newTransformer(xsltSource);
}
if (xsltParameterMap != null) {
// The values in the map are not applied when making IF
// I suspect because the stylesheet has already been read
applyXsltParameterMap(transformer); //Iterates on map:
transformer.setParameter(k,v)
}
transformer.transform(src, result);
resultBytes = out.toByteArray();
Where xsltSource is constructed via
xslUrl = new URL("jar:file://" + getBundlePath() +
"/lib/book-printing-core.jar!/" +
xsltFilename); //<== something.xsl
inputstream = xslUrl.openStream();
BufferedInputStream bis = new BufferedInputStream(inputstream);
xsltSource = new StreamSource(bis);
If I don't use the second form of the constructor (with stylesheet) I do
not get the IF. Indeed it's an error condition because the transformer
expect fo not xsl as the source.
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