private void doTransform(InputStream istream, File dataFile, File outputFile, String baseUrl)
throws SaxonApiException, TransformerFactoryConfigurationError, TransformerException {
InputStream stylesheetUri = Jats2Spar.class.getResourceAsStream(RESOURCE_JATS2SPAR_XSL);
Processor proc = new Processor(false);
XsltCompiler comp = proc.newXsltCompiler();
XsltExecutable exec;
exec = comp.compile(new StreamSource(stylesheetUri));
XsltTransformer transformer = exec.load();
DocumentBuilder saxBuilder = proc.newDocumentBuilder();
saxBuilder.setLineNumbering(true);
saxBuilder.setDTDValidation(false);
XdmNode source = saxBuilder.build(new StreamSource(istream));
Serializer serializer = new Serializer();
serializer.setOutputProperty(Serializer.Property.INDENT, "yes");
serializer.setOutputFile(outputFile);
transformer.setParameter(new QName("baseUri"), new XdmAtomicValue(baseUrl));
transformer.setInitialContextNode(source);
transformer.setDestination(serializer);
transformer.setMessageListener(
new MessageListener() {
@Override
public void message(XdmNode arg0, boolean arg1, SourceLocator arg2) {
log.warn(
String.format(
"Transformation Error: %s\n Line Number: %s", arg0, arg2.getLineNumber()));
}
});
transformer.transform();
log.info(String.format("Finished xslt transformation for file: %s", dataFile));
}
@Override
public Sequence call(XPathContext context, Sequence[] arguments) throws XPathException {
NodeInfo stylesheet = (NodeInfo) arguments[0].head();
NodeInfo node = (NodeInfo) arguments[1].head();
Evaluator eval = SearchBase.getEvaluator(context);
XsltCompiler xsltCompiler = eval.getCompiler().getXsltCompiler();
xsltCompiler.setErrorListener(eval.getErrorListener());
try {
// TODO: cache compiled xslt somewhere
XsltExecutable xsltexec = xsltCompiler.compile(stylesheet);
transformer = xsltexec.load();
transformer.setSource(node);
transformer.setErrorListener(eval.getErrorListener());
if (arguments.length > 2) {
bindParameters(arguments[2]);
}
XdmDestination dest = new XdmDestination();
transformer.setDestination(dest);
transformer.transform();
ArrayList<TransformerException> runtimeErrors =
((TransformErrorListener) transformer.getErrorListener()).getErrors();
if (!runtimeErrors.isEmpty()) {
throw new XPathException(
runtimeErrors.get(0).getMessage(),
runtimeErrors.get(0).getLocator(),
runtimeErrors.get(0));
}
XdmNode result = dest.getXdmNode();
if (result == null) {
return EmptySequence.getInstance();
}
return result.getUnderlyingNode();
} catch (SaxonApiException e) {
throw new XPathException(e);
}
}
private TransformerHandler createTransformerHandler() {
try {
TransformerHandlerImpl transformerHandler =
(TransformerHandlerImpl) GENERIC_FACTORY.newTransformerHandler(templates);
TransformerImpl impl = (TransformerImpl) transformerHandler.getTransformer();
XsltTransformer xslt = impl.getUnderlyingXsltTransformer();
Controller controller = (Controller) xslt.getUnderlyingController();
if (configuration != null) {
for (Entry<String, Object> entry : configuration.entrySet()) {
String name = entry.getKey();
// is valid XSLT parameter name
if (XSLT_PARAMETER_NAME_PATTERN.matcher(name).matches()) {
xslt.setParameter(new QName(name), new XdmExternalObject(entry.getValue()));
}
}
}
controller.setErrorListener(new TraxErrorListener(LOG, source.toExternalForm()));
if (context != null) {
xslt.setParameter(CoreConstants.APPLICATION_CONTEXT_PARAM, new XdmExternalObject(context));
}
Map<String, Object> model = HttpContextHelper.getModel(parameters);
xslt.setParameter(CoreConstants.MODEL_PARAM, new XdmExternalObject(model));
if (parameters != null)
try {
ServletContext servletContext = HttpContextHelper.getServletContext(parameters);
xslt.setParameter(
CoreConstants.SERVLET_CONTEXT_PARAM, new XdmExternalObject(servletContext));
HttpServletRequest servletRequest = HttpContextHelper.getRequest(parameters);
HttpServletResponse servletResponse = HttpContextHelper.getResponse(parameters);
if (servletRequest != null) {
controller.setURIResolver(new SaxonResolver(servletRequest, servletResponse));
xslt.setParameter(
Message.LOCALE_PARAM,
new XdmExternalObject(RequestContextUtils.getLocale(servletRequest)));
xslt.setParameter(
CoreConstants.SERVLET_REQUEST_PARAM, new XdmExternalObject(servletRequest));
HttpSession session = servletRequest.getSession(false);
if (session != null) {
xslt.setParameter(
CoreConstants.SERVLET_SESSION_PARAM, new XdmExternalObject(session));
}
// add support for form binding
xslt.setParameter(
CoreConstants.REQUEST_CONTEXT_PARAM,
new XdmExternalObject(
new RequestContext(servletRequest, servletResponse, servletContext, model)));
}
if (servletResponse != null) {
xslt.setParameter(
CoreConstants.SERVLET_RESPONSE_PARAM, new XdmExternalObject(servletResponse));
}
} catch (IllegalStateException e) {
LOG.debug("Not a Servlet request!", e);
// @SuppressWarnings({"rawtypes", "unchecked"})
// HashMap<String, Object> model = (HashMap) parameters.get("model");
//
// HttpServletRequest servletRequest = new VirtualRequest();
// servletRequest.setAttribute(DispatcherServlet.WEB_APPLICATION_CONTEXT_ATTRIBUTE,
// context);
// RequestContext requestContext = new RequestContext(servletRequest, model);
//
// transformer.setParameter(CoreConstants.REQUEST_CONTEXT_PARAM, requestContext);
}
return transformerHandler;
} catch (TransformerConfigurationException ex) {
throw new SetupException("Could not initialize transformer handler.", ex);
}
}
@Override
protected void setParameter(StructuredQName name, Item value) {
transformer.getUnderlyingController().setParameter(name, value);
}