[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Serialization with SAX
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 > -----Original Message----- > From: Johannes Lichtenberger > [mailto:Johannes.Lichtenberger@u...] > Sent: 15 January 2009 21:30 > To: xml-dev@l... > Subject: Serialization with SAX > > Hello, > > I want to be able to serialize an input XML document to an > output document. It seems to be stupid, but I want to read > until the say 2000th page-element and then skip everything. > It seems I can serialize it with something like > > SAXTransformerFactory fac = > (SAXTransformerFactory)TransformerFactory.newInstance(); > handler = fac.newTransformerHandler(); > Transformer t = handler.getTransformer(); > t.setOutputProperty(OutputKeys.METHOD, "xml"); > t.setOutputProperty(OutputKeys.INDENT, "yes"); > handler.setResult(new StreamResult(new FileOutputStream(filename))); > > Now I'm not sure how to implement something like a check > against a counter within every callback-method. Something like > > private long counter = 0; > > /** > * {@inheritdoc} > */ > public void startElement(String namespaceURI, String > localName, String qName, > Attributes atts) throws SAXException { > > if (localName.equalsIgnoreCase("page")) { > counter++; > } > > if (counter < ARTICLES) { > // TODO: everything which really has to be done to > serialize the doc. > } > } > > I'm not sure where to get the source for a full serialization > implemention and add "if (counter < ARTICLES) {" to every > method. Or simply how to add such a check ;-) I simply want > to have 2000 pages (page-Elements with all descendants) in > the output and then skip everything else. > > greetings, > Johannes > > > ______________________________________________________________ > _________ > > XML-DEV is a publicly archived, unmoderated list hosted by > OASIS to support XML implementation and development. To > minimize spam in the archives, you must subscribe before posting. > > [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ > Or unsubscribe: xml-dev-unsubscribe@l... > subscribe: xml-dev-subscribe@l... List archive: > http://lists.xml.org/archives/xml-dev/ > List Guidelines: http://www.oasis-open.org/maillists/guidelines.php >
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] |
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|