[XML] fichier plat vers xml

J'ai eu besoin de faire ce que je préconisais, donc voila une classe qui parse un fichier text et en fait un fichier xml.
Code:
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import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
 
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
 
import org.w3c.dom.Document;
import org.w3c.dom.Element;
 
public class SLParser
{
    InputStream is;
    String codePage;
    static String NS = "http://apache.org/cocoon/slop/parser/1.0";
    private Document xmlDoc;
 
    public SLParser(InputStream is, String codePage)
    {
        this.is = is;
        this.codePage = codePage;
        xmlDoc = null;
    }
 
    public void parse() throws IOException, ParserConfigurationException, TransformerException
    {
        if(is.markSupported())
            is.reset();
        InputStreamReader isr = new InputStreamReader(is, codePage);
        BufferedReader input = new BufferedReader(isr,100);
 
 
        Document doc= prepareDocument();
        Element root = doc.getDocumentElement();
        String line = null; 
        int lineNumber =0; 
 
        while(( line = input.readLine()) != null)
        {
            lineNumber++;
            Element lineElt;
            if(line.length()>0)
                lineElt = doc.createElement("sl:line");
            else
                lineElt = doc.createElement( "sl:empty-line");
 
            lineElt.setTextContent(line);
            lineElt.setAttribute( "line-number", String.valueOf(lineNumber));
            root.appendChild(lineElt);            
        }
 
        isr.close();
        input.close();
    }
 
    public Document getDocument() throws Exception
    {
        if(xmlDoc==null)
            throw new Exception("Document null: you need to parse() first");
        return xmlDoc;
    }
 
    private Document prepareDocument() throws ParserConfigurationException 
    {
//      Création d'un nouveau DOM
        DocumentBuilderFactory fabrique = DocumentBuilderFactory.newInstance();
        DocumentBuilder constructeur = fabrique.newDocumentBuilder();
        xmlDoc = constructeur.newDocument();
        // Propriétés du DOM
        xmlDoc.setXmlVersion("1.0");
        xmlDoc.setXmlStandalone(true);
 
        // Création de l'arborescence du DOM
        Element racine = xmlDoc.createElementNS(NS, "sl:parsed-text");
 
        xmlDoc.appendChild(racine);
 
        return xmlDoc;
    }
 
    public void writeToOutputStream(OutputStream out) throws Exception
    {
        if(xmlDoc==null)
            throw new Exception("Document null: you need to parse() first");
        DOMSource domSource = new DOMSource(xmlDoc);
        StreamResult result = new StreamResult(out);
        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty(OutputKeys.ENCODING, codePage);
        transformer.transform(domSource, result);
    }
 
    public static void main(String []args)
    {
        try {
            SLParser bp = new SLParser(new FileInputStream("C:\\2006_AOUT_00014439.lst"), "ISO-8859-1");
            bp.parse();
            bp.writeToOutputStream(new FileOutputStream("C:\\2006_AOUT_00014439.xml"));
        } catch (FileNotFoundException e){
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
        } catch (TransformerException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}