XSLT transformation in Java

2012-12-13

XSLT transformation in Java

Command-line XSLT transformation with Xalan

Create a script:

CURPATH=$(dirname $(which $0));
CP=$(echo `ls $CURPATH/*.jar` | sed -e 's/ /:/g' )
echo java -cp $CP org.apache.xalan.xslt.Process -IN $1 -XSL $2 -OUT $3
java -cp $CP org.apache.xalan.xslt.Process -IN $1 -XSL $2 -OUT $3

Then call it:

~/scripts/xslt pom.xml test.xsl pom2.xml -PARAM grp net.sourceforge.htmlunit -PARAM art htmlunit -PARAM ver 666

Sources: http://xml.apache.org/…andline.html

Simple class for XSLT conversion using JDK's XSLT

import javax.xml.transform.ErrorListener;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

public class Xslt {

    static public void main(String[] arg) {
        if(arg.length != 3) {
            System.err.println("Usage: SimpleXMLTransform " +
                "<input.xml> <input.xsl> <output>");
            System.exit(1);
        }
        String inXML = arg[0];
        String inXSL = arg[1];
        String outTXT = arg[2];

        Xslt st = new Xslt();
        try {
            st.transform(inXML,inXSL,outTXT);
        } catch(TransformerConfigurationException e) {
            System.err.println("Invalid factory configuration");
            System.err.println(e);
        } catch(TransformerException e) {
            System.err.println("Error during transformation");
            System.err.println(e);
        }
    }

    public void transform(String inXML,String inXSL,String outTXT)
                throws TransformerConfigurationException,
                    TransformerException {

        TransformerFactory factory = TransformerFactory.newInstance();

        StreamSource xslStream = new StreamSource(inXSL);
        Transformer transformer = factory.newTransformer(xslStream);
        transformer.setErrorListener(new MyErrorListener());

        StreamSource in = new StreamSource(inXML);
        StreamResult out = new StreamResult(outTXT);
        transformer.transform(in,out);
    System.out.println("The generated HTML file is:" + outTXT);
    }

}// class


class MyErrorListener implements ErrorListener {
    public void warning(TransformerException e)
                throws TransformerException {
        show("Warning",e);
        throw(e);
    }
    public void error(TransformerException e)
                throws TransformerException {
        show("Error",e);
        throw(e);
    }
    public void fatalError(TransformerException e)
                throws TransformerException {
        show("Fatal Error",e);
        throw(e);
    }
    private void show(String type,TransformerException e) {
        System.out.println(type + ": " + e.getMessage());
        if(e.getLocationAsString() != null)
            System.out.println(e.getLocationAsString());
    }
}
javac Xslt.java
java Xslt data.xml template.xslt output.xml

Template which does some change and copies all other data

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="xml" encoding="UTF-8" omit-xml-declaration="no" indent="yes"/>

    <!-- Find the matching MBean and skip it, but put out a message -->
    <xsl:template match="/myRoot/myElement">
                All myElement elements were replaced with this text.
    </xsl:template>

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

</xsl:stylesheet>
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