Method for transforming XML to XML using XSLT for Java/Android

Data.java

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.StringReader;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import android.util.Log;

public class Data {
    public static final Document transformXmlDocument(Document sourceDocument, InputStream xsltFile) {
        DOMSource xmlSource = new DOMSource(sourceDocument);
        StreamSource xsltSource = new StreamSource(xsltFile);
        
        Document transformedData = null;
        
        try {        
            TransformerFactory factory = TransformerFactory.newInstance();
            Transformer transformer = factory.newTransformer(xsltSource);
            
            ByteArrayOutputStream output = new ByteArrayOutputStream();
            StreamResult result = new StreamResult(output);
            
            transformer.transform(xmlSource, result);
            
            DocumentBuilder resultBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
            transformedData = resultBuilder.parse(
                new InputSource(
                    new StringReader(
                        new String(output.toByteArray())
                    )
                )
            );
        } catch (Exception e) {
            Log.e("XSLT Transformation", e.getMessage());
        }
        
        return transformedData;
    }
}

Sample.java

Document filteredData = Data.transformXmlDocument(
    myXmlDocument, 
    this.getResources().openRawResource(R.raw.xsltfile)
);