Hi, Simone.
"Simone Tripodi" <[EMAIL PROTECTED]> wrote on 2008-10-16 04:33:53
AM:
> I'm quite new with XSLTC and, even if I've also read the
> documentation, I didn't understand how to reuse a pre-compiled XSLT:
> to be clear, starting from an XSLT myxslt.xsl, I used the command line
> to compile it in java class MyXslt.class.
> Now, how can I use the MyXslt class in TrAX APIs?
> Any suggestion will be very appreciated, thanks in advance.
There are three steps involved:
1. Include the generated classes on your class path
2. Specify that you want to use XSLTC's TransformerFactoryImpl class as
the provider of the javax.xml.transform.TransformerFactory service. See
[1] for details.
3. Set the "use-classpath" TransformerFactory attribute to true. See [2].
There are a number of ways to do step 2 - you could set the
"javax.xml.transform.TransformerFactory" system property with the value
"org.apache.xalan.xsltc.trax.TransformerFactoryImpl" either from the
command-line or within your application. For instance,
java
-Djavax.xml.transform.TransformerFactory=org.apache.xalan.xsltc.trax.TransformerFactoryImpl
MyApplication
Then when you create a TransformerFactory instance, you will get XSLTC's
TransformerFactory implementation. Then step 3 direct the processor to
derive the name of the classes required for the stylesheet from the system
ID of the stylesheet, without recompiling the stylesheet. So, something
like this should do it:
TransformerFactory tf = null;
try {
tf = TransformerFactory.newInstance();
try {
tf.setAttribute("use-classpath", Boolean.TRUE);
} catch (IllegalArgumentException iae) {
System.err.println("Processor didn't recognize \"use-classpath\"
attribute");
}
// Will look for a class named "MyXslt" without recompiling
Transformer t = tf.newTransformer(new StreamSource("MyXslt.xsl"));
t.transform(new StreamSource("input.xml"), new
StreamResult(System.out));
} catch (TransformerConfigurationException tce) {
System.err.println("Could not create Transformer");
} catch (TransformerException te) {
System.err.println("Transform failed");
}
I hope that helps.
Thanks,
Henry
[1] http://xml.apache.org/xalan-j/usagepatterns.html#plug
[2] http://xml.apache.org/xalan-j/xsltc_usage.html#api-attributes
------------------------------------------------------------------
Henry Zongaro
XML Transformation & Query Development
IBM Toronto Lab T/L 313-6044; Phone +1 905 413-6044
mailto:[EMAIL PROTECTED]
