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Saxon bundle in openoffice
Added by Anonymous about 16 years ago
Legacy ID: #4986760
Legacy Poster: Vincent Biragnet (vinzb)
Hi, I'm new to java. I'm trying to perform xslt transformations with saxon in
openoffice. I created a java project (openoffice add-on) in Netbeans and included some
code to try a first transformation with saxon threw openoffice. I used the code in saxon
samples directory : TraxExamples.java. here is what I tried : public static NodeInfo
exampleSaxonToSaxon(String sourceID, String xslID) throws TransformerException {
System.setProperty("javax.xml.transform.TransformerFactory",
"net.sf.saxon.TransformerFactoryImpl"); // I haded this line
javax.xml.transform.TransformerFactory tfactory =
javax.xml.transform.TransformerFactory.newInstance(); net.sf.saxon.Configuration config
= ((net.sf.saxon.TransformerFactoryImpl)tfactory).getConfiguration(); ......... return
builder.getCurrentRoot(); } But the first line, defining system properties, causes a
crash of openoffice. I tried the same without the first line (System.setProperty...),
but got the following error message : EXCEPTION: java.lang.ClassCastException:
org.apache.xalan.processor.TransformerFactoryImpl java.lang.ClassCastException:
org.apache.xalan.processor.TransformerFactoryImpl The error occurs at the line where the
method getConfiguration is called. I really thank you for your help and hope I've been
clear enough, VB
Legacy ID: #4986775
Legacy Poster: Michael Kay (mhkay)
Without the System.setProperty() you have very little control over which XSLT
processor will be loaded; it depends on the order that things are found on the
classpath. If Xalan gets loaded, then casting tFactory to
net.sf.saxon.TransformerFactoryImpl is going to fail. If you're going to do such a cast,
then you might as well load the Saxon TransformerFactory directly rather than relying on
the factory mechanism: just do tfactory = new net.sf.saxon.TransformerFactoryImpl();
which is much faster and more reliable. It may also be enough to avoid the crash. I'm
afraid there are quite a few applications out there that use the JAXP factory mechanism
to load an XSLT engine, and then assume either deliberately or accidentally that the
XSLT engine they are using is Xalan. If you load Saxon explicitly when needed, but avoid
setting the global system property, then such applications will continue to load Xalan
and may therefore continue to work.
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