Xsl:output ignored when doing transformation by XMLReader and XMLFilter

Question

I want to make XML transformation via XSL file using XMLReader and filter as described in java tutorial http://java.sun.com/xml/jaxp/dist/1.1/docs/tutorial/xslt/5_chain.html, but it is not working correctly. Transformation is not using encoding and method set in xslfile by <xsl:output method="xml" encoding="ISO-8859-2"/>.
I wrote simple test program whitch has two method doing transformation:
transform_method1 - transforms by XMLReader and filter
transform_method2 - transforms in other manner described in the same tutorial
The second method is working, but first not. Maybe someone has some solution why the first method is not working correctly?
Here is test class:
package xslt;
import javax.xml.parsers.*;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import javax.xml.transform.*;
import javax.xml.transform.sax.*;
import javax.xml.transform.stream.*;
import java.io.*;
public class TestTransform {
    public static void main(String[] args) {
        File xml_file = new File(args[0]);
        File xsl_file = new File(args[1]);
        File output_file_method1 = new File(args[2]);
        File output_file_method2 = new File(args[3]);
        transform_method1(xml_file, xsl_file, output_file_method1);
        transform_method2(xml_file, xsl_file, output_file_method2);
    private static void transform_method1(File xml, File xsl, File output) {
        try {
            BufferedInputStream bis = new BufferedInputStream(new FileInputStream(xml));
            InputSource input = new InputSource(bis);
            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser parser = spf.newSAXParser();
            XMLReader reader = parser.getXMLReader();
            SAXTransformerFactory stf = (SAXTransformerFactory) TransformerFactory.newInstance();
            XMLFilter filter1 = stf.newXMLFilter(new StreamSource(xsl));
            filter1.setParent(reader);
            StreamResult result = new StreamResult(output);
            Transformer transformer = stf.newTransformer();
            SAXSource transformSource = new SAXSource(filter1, input);
            System.out.println("encoding method1="+transformer.getOutputProperty(OutputKeys.ENCODING));
            transformer.transform(transformSource, result);
        } catch (Exception e) {
            e.printStackTrace();
    private static void transform_method2(File xml, File xsl, File output) {
        try {
            TransformerFactory tFactory =   TransformerFactory.newInstance();
            Transformer transformer = tFactory.newTransformer( new StreamSource( xsl) );
            System.out.println("encoding method2="+transformer.getOutputProperty(OutputKeys.ENCODING));
            transformer.transform(new StreamSource(xml), new StreamResult(output));
        } catch (Exception e) {
            e.printStackTrace();
}and here is test xml file:
<?xml version="1.0" encoding="ISO-8859-2"?>
<root>
    <line>Some text line 1</line>
    <line>Some text line 2</line>
    <line>Some text line 3</line>
</root>the test stylesheet:
<?xml version="1.0" encoding="ISO-8859-2"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" encoding="ISO-8859-2"/>
<xsl:template match="root">
     <p><xsl:apply-templates/></p>
</xsl:template>
<xsl:template match="line">
     <div><xsl:apply-templates/></div>
</xsl:template>
</xsl:stylesheet>I get output file from method1:
<?xml version="1.0" encoding="UTF-8"?>
    Some text line 1
    Some text line 2
    Some text line 3and method2 output:
<?xml version="1.0" encoding="ISO-8859-2"?>
<p>
    <div>Some text line 1</div>
    <div>Some text line 2</div>
    <div>Some text line 3</div>
</p>Output on System.out from program is:
encoding method1=UTF-8
encoding method2=ISO-8859-2Can someone help how can I make transformation like transform_method1 style not to ignore <xsl:output method="xml" encoding="ISO-8859-2"/> tag?

Answer 1

You have two transformations chained together. The first is the XMLFilter, which uses your XSLT, and the second is the Transformer, which takes its output and does an identity transformation on it. The second transformation is the one that produces your final XML, so it's the one that controls what encoding it gets.
So your stylesheet should be working. Your only "problem" is that you get a different encoding than you expected. And I put "problem" in quotes because the output you are getting is identical, in XML terms, to the output you want to get.