Error only on using xalan:evaluate

gokulak · April 14th, 2015, 02:31 AM

XSL does not compile when and only I use xalan:evaluate.

Setting in system properties
----------------------------

sysProps.setProperty("javax.xml.transform.Transfor merFactory", "org.apache.xalan.xsltc.trax.SmartTransformerFacto ryImpl");

XSLT snippet
--------------

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xalan="http://xml.apache.org/xalan" exclude-result-prefixes="xalan">

<xsl:template name="my_test_template">
<xsl:param name="my_test_param" />

<xsl:if test="xalan:evaluate($my_test_param)">
some statements
</xsl:if>

<xsl:if test="not(xalan:evaluate($my_test_param))">
some statements
</xsl:if>

</xsl:template>

ERROR LOG
-----------------------------------------------

ERROR: 'Cannot find external method 'org.apache.xalan.lib.Extensions.evaluate' (must be public).'
2015-04-14 08:19:52,509 XslTransform ERROR> Error creating 16 template, will skip compile and use interpretive mode instead
javax.xml.transform.TransformerConfigurationExcept ion: Could not compile stylesheet
at org.apache.xalan.xsltc.trax.TransformerFactoryImpl .newTemplates(TransformerFactoryImpl.java:832)
at org.apache.xalan.xsltc.trax.SmartTransformerFactor yImpl.newTemplates(SmartTransformerFactoryImpl.jav a:319)

Martin Honnen · April 14th, 2015, 06:55 AM

According to the Xalan documentation http://xalan.apache.org/xalan-j/extensions_xsltc.html I don't see any support in XSLTC for xalan: evaluate, that seems to be only supported in the Xalan interpreter XSLT implementation http://xalan.apache.org/xalan-j/extensionslib.html. So you will need to use a different transformer. In the Java world you might also consider to switch to Saxon 9 as it supports XSLT 2.0 and 3.0 while Xalan is an XSLT 1.0 processor.