Re: How to pass java.util.Map instance as a parameter to a XSLTStylesheet

Vishal,

  Xalan in the JDK is a compiler (XSLTC) and as such it tries to  
resolve as much as it can statically. As a result, there are some  
limitations. The discussion and resolution in [1] may help.

-- Santiago

[1] http://issues.apache.org/jira/browse/XALANJ-1485

On Nov 2, 2009, at 7:21 AM, Javalkar, Vishal wrote:

> Hi,
>
> Apparently, Xalan (the one bundled with JDK 6 at-least) complains  
> when a java.util.Map is passed as a parameter to an XSLT stylesheet.
>
> Assuming, I have a snippet of code as:
>
> Map inputparam = new HashMap();	
> inputparam.put("greeting", "hi there");
> transformer.setParameter("inputparam", inputparam);
> ...
> transformer.transform(...);
>
> and I have a simple XSLT that attempts to get the key 'greeting'  
> from this
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
> 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> 	xmlns:map="xalan://java.util.HashMap"
> 	extension-element-prefixes="map">
> 	
> 	<xsl:param name="inputparam" />
> 	
> 	<xsl:template match="/">
> 		<xsl:variable name="greeting"
> 			select="map:get($inputparam, 'greeting')" />
> 		<greeting><xsl:value-of select="greeting"/></greeting>		
> 	</xsl:template>
> </xsl:stylesheet>
>
> I obtain the following error:
>
> ERROR:  'Cannot find external method 'java.util.HashMap.get' (must  
> be public).'
> FATAL ERROR:  'Could not compile stylesheet'
> javax.xml.transform.TransformerConfigurationException: Could not  
> compile stylesheet
> 	at  
> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTemplates 
> (TransformerFactoryImpl.java:825)
> 	at  
> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTransformer 
> (TransformerFactoryImpl.java:614)
> 	at xalanxslttest.ExecuteXslt.main(ExecuteXslt.java:36)
>
>
> Is there a way to solve this? Is this supported?
>
> All help/advice appreciated!
> Thanks & Regards,
> Vishal
>