XSLT 2 (Saxon): How to read multiple files into memory - xslt

Question

How do I read multiple xml files into memory/stream?
Using <xsl:result-document> I am able to split xml into multiple xmls onto the directory.
I want to read the multiple result files into memory
XSL :
<xsl:template match="/testdata">
<xsl:for-each select="trd">
<xsl:result-document href="result_{position()}.xml">
<abc>
<xyz>
<xsl:copy-of select="*"/>
</xyz>
</abc>
</xsl:result-document>
</xsl:for-each>
</xsl:template>
With below I am able to read one resulting xml into memory (after removing <xsl:result-document>). I want read multiple output xmls into memory
System.setProperty("javax.xml.transform.TransformerFactory", "net.sf.saxon.TransformerFactoryImpl");
TransformerFactory tFactory = TransformerFactory.newInstance();
Source xslt = new StreamSource(new File("testxsl.xsl"));
Transformer transformer = null;
transformer = tFactory.newTransformer(xslt);
Source xmlInput = new StreamSource(new File("test.xml"));
StreamResult standardResult = new StreamResult(new ByteArrayOutputStream());
transformer.transform(xmlInput, standardResult);

Answer 1

This can't be done using the standard JAXP API (which was designed for XSLT 1.0 and has never been upgraded). Use Saxon's s9api API, and call Xslt30Transformer.setResultDocumentHandler() to supply a destination for result documents. This can be an XdmDestination if you want the result as an XdmNode object, or it can be a Serializer writing to an in-memory OutputStream or StringWriter if you want to capture serialized results in memory.