Failed to Update XML Node Attribute using XSLT 1.0

Question

I am using Java 8 with XSLT 1.0.

I have the below xml file used as input to XSLT

<?xml version="1.0" encoding="UTF-8"?>
<Research xmlns="http://www.rixml.org/2013/2/RIXML">
    <Product>
        <StatusInfo statusType="Revised"/>
    </Product>
</Research>

I am trying to update the statusType attribute to Deleted from the current value and below is the xslt doing the same.

<xsl:template match="node()|@*">
    <xsl:copy>
        <xsl:apply-templates select="node()|@*" />
    </xsl:copy>
</xsl:template>

<xsl:template match="//Research/Product/StatusInfo">
    <xsl:element name="StatusInfo">
        <xsl:attribute name="stausType">Deleted</xsl:attribute>
    </xsl:element>
</xsl:template>

But when I try to apply xslt using below Java program it is not giving any error but it is failing to update the statusType in newly generated xml.

As soon as I removed the xmlns attribute of Research element and apply the same xslt it is updating the attribute properly.

I am using below Java program to apply xslt on the input file to generate the final output file.

public class TestPullbackRIXMLXSLT1 {

private static final String SOURCE_XSLT_PATH="C:\\MDERedesignPoc\\distribution-engine-publications\\package\\config\\xslt\\RIXMLPullback.xsl";
private static final String INPUT_XML_FILE_PATH="C:\\export\\rschapps\\rschdistengine\\workarea-qa\\2002434_1_10893_DISTRIBUTE\\core\\input.xml";
private static final String OUTPUT_XML_FILE_PATH="C:\\export\\rschapps\\rschdistengine\\workarea-qa\\2002434_1_10893_DISTRIBUTE\\core\\output.xml";
private static final Logger logger = LoggerFactory.getLogger(TestRIXMLXSLT.class);

public static void main(String[] args) {

    try
    {

        System.out.println("Creation of RIXML 24 ");
        Transformer transformer = createTransformer();
        StreamSource source = new StreamSource(new File(INPUT_XML_FILE_PATH));
        File outputXML=new File(OUTPUT_XML_FILE_PATH);
        StreamResult result = new StreamResult(outputXML);
        transformer.transform(source, result);

    }
    catch(Exception e) {
        e.printStackTrace();
    }

}
private static Transformer createTransformer() throws TransformerConfigurationException{
    TransformerFactory factory = TransformerFactory.newInstance();
    factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "all");
    factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_STYLESHEET, "all");
    Templates cachedXSLT = factory.newTemplates(new StreamSource(new File(SOURCE_XSLT_PATH)));
    Transformer transformer = cachedXSLT.newTransformer();
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    transformer.setOutputProperty(OutputKeys.INDENT, Constants.YES);
    transformer.setOutputProperty(Constants.TRANSFORMER_INDENT_PARAMETER_NAME, Constants.TRANSFORMER_INDENT_PARAMETER_VALUE);
    return transformer;
}

}

I am not able to understand why xmlns is causing the issue while applying the xslt and if attribute is not present everything is working fine.

I have to keep the xmlns (namespace) attribute in input.xml to avoid failures.

Can anybody please help me fix this issue?

Answer 1

This question kind of questions comes back very often. You need to take into account the namespace. Do some reading on namespaces.

It can be done like this:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:ri="http://www.rixml.org/2013/2/RIXML"
    version="1.0">

  <xsl:output method="xml" indent="yes"/>

  <xsl:template match="node()|@*">
    <xsl:copy>
        <xsl:apply-templates select="node()|@*" />
    </xsl:copy>
  </xsl:template>

  <xsl:template match="//ri:Research/ri:Product/ri:StatusInfo">
    <xsl:element name="StatusInfo" namespace="http://www.rixml.org/2013/2/RIXML">
        <xsl:attribute name="statusType">Deleted</xsl:attribute>
    </xsl:element>
  </xsl:template>

</xsl:stylesheet>

See it working here: https://xsltfiddle.liberty-development.net/ehVZvw8

Or you could simplify it to this:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:ri="http://www.rixml.org/2013/2/RIXML"
    version="1.0">

  <xsl:output method="xml" indent="yes"/>

  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="node()|@*" />
    </xsl:copy>
  </xsl:template>

  <xsl:template match="ri:StatusInfo/@statusType">
    <xsl:attribute name="statusType">Deleted</xsl:attribute>
  </xsl:template>

</xsl:stylesheet>

See it working here: https://xsltfiddle.liberty-development.net/ehVZvw8/1