method to parse streaming XML?

[riches85]

Has anyone had the experience of parsing streaming XML? I need to be able to parse XML over a socket connection in Java and most parsers expect a whold document at once. Im curious if anyone has found a way to do it and can steer me in the right direction. Thank you in advance.

 

[sedj]

You can just read it like any other input stream, eg :

Socket s = // however you retrieved your Socket
InputStream in = s.getInputStream();
boolean strict = true;

try {
	DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
	DocumentBuilder builder = null;
	if (strict) {
		factory.setNamespaceAware(true);
		factory.setValidating(true);
		builder = factory.newDocumentBuilder();
		builder.setErrorHandler(new XMLErrorHandler());
	} else {
		builder = factory.newDocumentBuilder();
	}

	Document doc = builder.parse(in);
	return doc;
	} catch (SAXException se) {
		se.printStackTrace(System.err);
		//throw new XMLException(se.toString());
	} catch (ParserConfigurationException pce) {
		pce.printStackTrace(System.err);
		//throw new XMLException(pce.toString());
	}

 

[riches85]

will this parse xml as it comes in or will it wait for the end of file marker before it starts partsing?

 

[sedj]

it will read the current data in an input stream until the tcp socket is closed.

 

[sedj]

also please do not crosspost with other forums here (XML forum)