[jboss-dev] Validating XML documents

[Emmanuel Bernard]

Sorry for the stupid question but how do we validate XML InputStream that are following an XSD?

I've got something like
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
docBuilderFactory.setValidating( true ); //apparently useless cause it's for DTDs only
docBuilderFactory.setNamespaceAware( true );
//this one seems to do nothing either
docBuilderFactory.setSchema(
				SchemaFactory.newInstance( javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI )
						.newSchema( new StreamSource( getStreamFromClasspath( "persistence_1_0.xsd" ) ) ) );

InputSource source = new InputSource( is );
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
docBuilder.setEntityResolver( resolver );
docBuilder.setErrorHandler( new ErrorLogger( "XML InputStream", errors, resolver ) );
Document doc = docBuilder.parse( source );
if ( errors.size() != 0 ) {
	throw new PersistenceException( "invalid persistence.xml", (Throwable) errors.get( 0 ) );
}

But even with illegal elements in the XML (well-formed though), I get no error :(