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Passing XML Tree as parameter to Transformer
Added by Anonymous over 19 years ago
Legacy ID: #3259307
Legacy Poster: Pranas (pranasb)
Conditions: 0. Use case - 2 transformations in the chain. 1-st using XML tree as
parameter to transformer. 1. javax.xml.transform.TransformerFactory =
com.saxonica.SchemaAwareTransformerFactory 2. The transformation uses XML tree as
parameter: Transformer transformer = translet.newTransformer(); InputStream uiDataStrem
= loader.getResourceAsStream("some.xml"); DocumentBuilderFactory
factory = DocumentBuilderFactory.newInstance();
transformer.setParameter("ui-ref",
factory.newDocumentBuilder().parse(uiDataStrem)); The result: Tranformation is
incorrect. The Xerces created tree, but it was not recognised by Saxon. BUG?! The second
atempt is to pass Saxon specific Tree implementations by setting Saxon Document builder
Factory:
javax.xml.parsers.DocumentBuilderFactory=net.sf.saxon.dom.DocumentBuilderFactoryImpl The
result of trasformation is correct. BUT during attempt to process seccond xml streem the
exceptions thrown: ; SystemID: ; Line#: 2532; Column#: -1
net.sf.saxon.trans.DynamicError: Cannot disable output escaping when writing a tree at
net.sf.saxon.tinytree.TinyBuilder.characters(TinyBuilder.java:221) at
net.sf.saxon.event.ProxyReceiver.characters(ProxyReceiver.java:202) at
net.sf.saxon.event.ComplexContentOutputter.characters(ComplexContentOutputter.java:110)
PLESE HELP. I need saxonsa8-4 to process data. The saxonsa8-4 should be supported....
Thanks Pranas Baliuka
Legacy ID: #3259790
Legacy Poster: Michael Kay (mhkay)
Your call to Xerces will return a DOM Document node. Saxon will recognize this as
the value of a stylesheet parameter provided that the DOM support module
(saxon8-dom.jar) is on your classpath. However, this is not a good way to pass an XML
document as a parameter to Saxon. It would be better to pass a JAXP StreamSource and let
Saxon build the tree itself. In the most recent XSLT 2.0 draft (April 2005) error 1610
was removed, and disable-output-escaping is now ignored when writing to a temporary
tree. This change was not implemented in Saxon 8.4, but will be made in the next
release. I would recommend, however, that you don't use disable-output-escaping in these
circumstances, since it does nothing and may confuse readers of your code. (In fact, I
would recommend that you don't use d-o-e at all...) Note that these two problems are
quite unrelated. Michael Kay
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