private void schematronTransformation()
throws TransformerException {
TransformerFactory tf = TransformerFactory.newInstance();
Transformer stage1 = tf.newTransformer(new StreamSource(
"Schematron/iso_dsdl_include.xsl"));
DOMResult dres1 = new DOMResult();
stage1.transform(new StreamSource("input.sch"), dres1);
Transformer stage2 = tf.newTransformer(new StreamSource(
"Schematron/iso_abstract_expand.xsl"));
DOMResult dres2 = new DOMResult();
stage2.transform(new DOMSource(dres1.getNode()), dres2);
Transformer stage3 = tf.newTransformer(new StreamSource(
"Schematron/iso_svrl_for_xslt2.xsl"));
DOMResult dres3 = new DOMResult();
stage3.transform(new DOMSource(dres2.getNode()), dres3);
Transformer stage4 = tf.newTransformer(new DOMSource(dres3
.getNode()));
stage4.transform(new StreamSource("input.xml"),
new StreamResult("output.xml"));
}
Refactorings
No refactoring yet !
zetafish
October 9, 2009, October 09, 2009 14:15, permalink
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Compiling the schematron file only has to happen once. Also generalized the compile stages.
// NOTE: Compiling the 'input.sch' is needed only once.
private final Transformer transformer = compileTransformer();
// NOTE: sycnhronized because transformers are not thread safe.
private synchronized void schematronTransformation()
throws TransformerException
{
Source source = new StreamSource("input.xml");
Result result = new StreamResult("output.xml");
transformer.transform(source, result);
}
private static Transformer compileTransformer()
throws TransformerException
{
TransformerFactory tf = TransformerFactory.newInstance();
String[] stages = {
"Schematron/iso_dsdl_include.xsl",
"Schematron/iso_abstract_expand.xsl",
"Schematron/iso_svrl_for_xslt2.xsl" };
Node node = null;
Source source = new StreamSource("input.sch");
for (String stage : stages)
{
Source xsl = new StreamSource(stage);
Transformer t = tf.newTransformer(xsl);
DOMResult result = new DOMResult();
t.transform(source, result);
source = new DOMSource(node = result.getNode());
}
return tf.newTransformer(new DOMSource(node));
}
private static Node transform(Transformer t, Source source)
throws TransformerException
{
DOMResult y = new DOMResult();
t.transform(source, y);
return y.getNode();
}
I want to validate some XML with Schematron, and need help in Optimizing JAXP Code. Code compiles and executes without any Errors. Use Saxon if u want to test code. XSL-Files are official ISO Schematron.
How to do it more elegant, maybe with SAX instead of DOM? Unfortunately, I am not that good in JAXP. Thanks a lot in advance.