fileStream = mPackage.getInputStream(mPackagePath);
if (fileStream != null) {
XMLReader xmlReader = mPackage.getXMLReader();
OdfFileSaxHandler odf = new OdfFileSaxHandler(this);
String baseUri = Util.getRDFBaseUri(mPackage.getBaseURI(),mPackagePath);
sink = new JenaSink(this);
odf.setSink(sink);
SAXRDFaParser rdfa = SAXRDFaParser.createInstance(sink);
rdfa.setBase(baseUri);
// the file is parsed by ODF ContentHandler, and then RDFa ContentHandler
MultiContentHandler multi = new MultiContentHandler(odf, rdfa);