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RE: Serialization with SAX

  • From: Johannes Lichtenberger <Johannes.Lichtenberger@u...>
  • To: Michael Kay <mike@s...>
  • Date: Fri, 16 Jan 2009 00:41:40 +0100

RE:  Serialization with SAX
Am Donnerstag, den 15.01.2009, 22:03 +0000 schrieb Michael Kay:
> You don't want to get the source of a serializer and modify it. You want to
> add a SAX filter into a pipeline. Your filter should simply call the next
> stage in the pipeline (that is, the serializer) for every event until the
> threshold is reached, and do nothing for events after that threshold (except
> of course for closing the outermost element and the document tidily).
> You can write a SAX filter by subclassing XMLFilterImpl, and you can see how
> to use it from a tutorial at
> http://www.cafeconleche.org/slides/sd2000east/sax/74.html 

So I'm not really sure how to use it, something like:

  public ExtractArticles(XMLReader parent) {
  public void parse(InputSource input) throws IOException, SAXException
  public void parse(String systemId) throws IOException, SAXException {
    parse(new InputSource(systemId)); 

   * {@inheritDoc}
  public void startElement(String namespaceURI, String localName, String
      Attributes atts) throws SAXException {

    if (localName.equalsIgnoreCase("page")) {

    if (counter < ARTICLES) {
      super.startElement(namespaceURI, localName, qName, atts);


  public final static void main(final String args[]) {

    try {
      XMLReader r = XMLReaderFactory.createXMLReader();
      new ExtractArticles(r).parse(new InputSource(new
    } catch (IOException e) {
      System.err.println("I/O exception reading XML document");
    } catch (SAXException e) {
      System.err.println("XML exception reading document.");


But how do I specify the output document?


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