final GrammarReaderController controller,
SAXParserFactory factory )
throws SAXException, ParserConfigurationException, java.io.IOException
{
final TRELAXNGReader relaxNg = new TRELAXNGReader(controller,factory);
final TXMLSchemaReader xmlSchema = new TXMLSchemaReader(controller,factory);
final XMLReader parser = factory.newSAXParser().getXMLReader();
final GrammarReader[] winner = new GrammarReader[1];
parser.setContentHandler( new DefaultHandler() {
private Locator locator;
private Vector prefixes = new Vector();
public void setDocumentLocator( Locator loc ) {
this.locator = loc;
}
public void startPrefixMapping( String prefix, String uri ) {
prefixes.add( new String[]{prefix,uri} );
}
public void startElement( String namespaceURI, String localName, String qName, Attributes atts )
throws SAXException {
if( localName.equals("schema") )
winner[0] = xmlSchema; // assume XML Schema
else
winner[0] = relaxNg;
// simulate the start of the document.
winner[0].setDocumentLocator(locator);
winner[0].startDocument();
for( int i=0; i<prefixes.size(); i++ ) {
String[] d = (String[])prefixes.get(i);
winner[0].startPrefixMapping( d[0], d[1] );
}
winner[0].startElement(namespaceURI,localName,qName,atts);
// redirect all successive events to the winner.
parser.setContentHandler(winner[0]);
parser.setErrorHandler(
new GrammarReaderControllerAdaptor(winner[0],controller));
}
});
if( source instanceof String ) parser.parse( (String)source );
else parser.parse( (InputSource)source );
if( relaxNg.hadError || xmlSchema.hadError ) return null;
if(winner[0]==relaxNg) return relaxNg.getAnnotatedResult();
else return xmlSchema.getAnnotatedResult();
}