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From Ruwan Linton <ruwan.lin...@gmail.com>
Subject Re: Question about XSLT mediator
Date Tue, 14 Jul 2009 11:17:41 GMT
Yes, you need to declare the parameter with the exact name as the property
name... I wonder why we call this property it is confusing to pass in
parameters as properties :(

Thanks,
Ruwan

On Tue, Jul 14, 2009 at 12:37 PM, Andreas Veithen <andreas.veithen@gmail.com
> wrote:

> Bill,
>
> I think you need to declare the parameter in your stylesheet using:
>
> <xsl:param name="TestMe"/>
>
> This declaration should be placed just below the <xsl:stylesheet> tag.
>
> Andreas
>
> On Mon, Jul 13, 2009 at 21:23, Bill Harts<bill@hartsandco.com> wrote:
> > Can someone point me in the right direction to pass parameters (or
> registry
> > values) into an XSLT transform?
> >
> > In the documentation for the XSLT mediator it states,
> >
> > "Optionally parameters (XSLT) could be passed into the transformation
> > through the 'property' elements."
> >
> > I am trying to take advantage of this. Here is my synapse.xml code:
> >
> > <localEntry key="xslt-key-resp"
> > src="file:repository/conf/resources/transform/MyTransform.xslt" />
> >
> > .
> > .
> > .
> >  <xslt key="xslt-key-resp">
> >    <property name="TestMe" value="This is a test"/>
> >  </xslt>
> >
> > and MyTransform.xslt:
> >
> >  <xsl:stylesheet version="2.0"
> > xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> > xmlns:fn="http://www.w3.org/2005/02/xpath-functions">
> >    <xsl:output method="xml" omit-xml-declaration="yes" indent="yes"/>
> >    <xsl:template match="/">
> >        <message inSession="FIX.4.2:OPTMED->BROKER" counter="1">
> >            <header>
> >                <field id="8"><![CDATA[FIX.4.2]]></field>
> >                <field id="35"><![CDATA[8]]></field>
> >                <field id="49"><![CDATA[BROKER]]></field>
> >                <field id="52"><![CDATA[20090526-06:50:26.661]]></field>
> >                <field id="56"><![CDATA[OPTMED]]></field>
> >            </header>
> >            <body>
> >                <field id="11"><xsl:value-of select="$TestMe" /></field>
> >                <field id="21"><![CDATA[1]]></field>
> >                <field id="38"><![CDATA[10000]]></field>
> >                <field id="40"><![CDATA[1]]></field>
> >                <field id="54"><![CDATA[1]]></field>
> >                <field id="59"><![CDATA[0]]></field>
> >                <field id="60"><![CDATA[20090526-06:50:26.657]]></field>
> >                <field id="453"><![CDATA[1]]></field>
> >            </body>
> >            <trailer>
> >                <field id="10"><![CDATA[186]]></field>
> >            </trailer>
> >        </message>
> >    </xsl:template>
> > </xsl:stylesheet>
> >
> > When I run it, I get an exception:
> >
> > 2009-07-13 14:53:28,019 [-] [HttpClientWorker-20] ERROR XSLTMediator
> > Error creating XSLT transformer using : xslt-key-resp
> > javax.xml.transform.TransformerConfigurationException:
> > javax.xml.transform.TransformerException:
> > org.apache.xml.utils.WrappedRuntimeException: Could not find variable
> > with the name of TestMe
> >
> >        at
> org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:961)
> >        at
> org.apache.synapse.mediators.transform.XSLTMediator.performXSLT(XSLTMediator.java:239)
> >        at
> org.apache.synapse.mediators.transform.XSLTMediator.mediate(XSLTMediator.java:197)
> >
> >        at
> org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:60)
> >        at
> org.apache.synapse.mediators.filters.FilterMediator.mediate(FilterMediator.java:112)
> >        at
> org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:60)
> >
> >        at
> org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:115)
> >        at
> org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:139)
> >        at
> org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:339)
> >
> >        at
> org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:135)
> >        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
> >        at
> org.apache.synapse.transport.nhttp.ClientWorker.run(ClientWorker.java:230)
> >
> >        at
> org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:58)
> >        at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)
> >        at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)
> >
> >        at java.lang.Thread.run(Thread.java:595)
> > Caused by: javax.xml.transform.TransformerException:
> > org.apache.xml.utils.WrappedRuntimeException: Could not find variable
> > with the name of TestMe
> >        at
> org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:952)
> >
> >        ... 15 more
> > Caused by: org.apache.xml.utils.WrappedRuntimeException: Could not
> > find variable with the name of TestMe
> >        at
> org.apache.xpath.operations.Variable.fixupVariables(Variable.java:148)
> >        at org.apache.xpath.XPath.fixupVariables(XPath.java:88)
> >
> >        at
> org.apache.xalan.templates.ElemValueOf.compose(ElemValueOf.java:183)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:361)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >        at
> org.apache.xalan.templates.StylesheetRoot.recompose(StylesheetRoot.java:341)
> >        at
> org.apache.xalan.processor.StylesheetHandler.endDocument(StylesheetHandler.java:471)
> >
> >        at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown
> > Source)
> >        at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown
> > Source)
> >        at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown
> Source)
> >
> >        at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
> >        at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown
> Source)
> >        at
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch(Unknown
> > Source)
> >
> >        at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> > Source)
> >        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> Source)
> >        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> Source)
> >
> >        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> >        at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
> Source)
> >        at
> org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
> > Source)
> >
> >        at
> org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:922)
> >        ... 15 more
> > 2009-07-13 14:53:28,219 [-] [DefaultQuartzScheduler_Worker-2] DEBUG
> > InMediator Current message is incoming - executing child mediators
> >
> > 2009-07-13 14:53:29,762 [-] [HttpClientWorker-20] ERROR XSLTMediator
> > Unable to perform XSLT transformation using : xslt-key-resp against
> > source XPath : s11:Body/child::*[position()=1] |
> > s12:Body/child::*[position()=1]
> >
> > org.apache.synapse.SynapseException: Error creating XSLT transformer
> > using : xslt-key-resp
> >        at
> org.apache.synapse.mediators.AbstractMediator.handleException(AbstractMediator.java:275)
> >        at
> org.apache.synapse.mediators.transform.XSLTMediator.performXSLT(XSLTMediator.java:245)
> >
> >        at
> org.apache.synapse.mediators.transform.XSLTMediator.mediate(XSLTMediator.java:197)
> >        at
> org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:60)
> >        at
> org.apache.synapse.mediators.filters.FilterMediator.mediate(FilterMediator.java:112)
> >
> >        at
> org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:60)
> >        at
> org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:115)
> >        at
> org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:139)
> >
> >        at
> org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:339)
> >        at
> org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:135)
> >
> >        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
> >        at
> org.apache.synapse.transport.nhttp.ClientWorker.run(ClientWorker.java:230)
> >        at
> org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:58)
> >
> >        at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)
> >        at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)
> >        at java.lang.Thread.run(Thread.java:595)
> >
> > Caused by: javax.xml.transform.TransformerConfigurationException:
> > javax.xml.transform.TransformerException:
> > org.apache.xml.utils.WrappedRuntimeException: Could not find variable
> > with the name of TestMe
> >        at
> org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:961)
> >
> >        at
> org.apache.synapse.mediators.transform.XSLTMediator.performXSLT(XSLTMediator.java:239)
> >        ... 14 more
> > Caused by: javax.xml.transform.TransformerException:
> > org.apache.xml.utils.WrappedRuntimeException: Could not find variable
> > with the name of TestMe
> >
> >        at
> org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:952)
> >        ... 15 more
> > Caused by: org.apache.xml.utils.WrappedRuntimeException: Could not
> > find variable with the name of TestMe
> >
> >        at
> org.apache.xpath.operations.Variable.fixupVariables(Variable.java:148)
> >        at org.apache.xpath.XPath.fixupVariables(XPath.java:88)
> >        at
> org.apache.xalan.templates.ElemValueOf.compose(ElemValueOf.java:183)
> >
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:361)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >        at
> org.apache.xalan.templates.StylesheetRoot.composeTemplates(StylesheetRoot.java:366)
> >
> >        at
> org.apache.xalan.templates.StylesheetRoot.recompose(StylesheetRoot.java:341)
> >        at
> org.apache.xalan.processor.StylesheetHandler.endDocument(StylesheetHandler.java:471)
> >        at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown
> > Source)
> >
> >        at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown
> > Source)
> >        at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown
> Source)
> >        at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
> >
> >        at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown
> Source)
> >        at
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch(Unknown
> > Source)
> >        at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> > Source)
> >
> >        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> Source)
> >        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> Source)
> >        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> >
> >        at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
> Source)
> >        at
> org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
> > Source)
> >        at
> org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:922)
> >
> >        ... 15 more
> >
> >
> >  Alternatively, is there a way to use "get-property('Registry-variable')"
> in
> > the XSLT file?
> >
> > Is there an example of how to do this?
> >
> > Thanks,
> > Bill
> >
>



-- 
Ruwan Linton
Technical Lead & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: ruwan@wso2.com; cell: +94 77 341 3097
blog: http://ruwansblog.blogspot.com

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