@Override
public void handle() throws FacesException {
final Iterator<ExceptionQueuedEvent> i = getUnhandledExceptionQueuedEvents().iterator();
while (i.hasNext()) {
ExceptionQueuedEvent event = i.next();
ExceptionQueuedEventContext context = (ExceptionQueuedEventContext) event.getSource();
Throwable t = context.getException();
final FacesContext fc = FacesContext.getCurrentInstance();
final Map<String, Object> requestMap = fc.getExternalContext().getRequestMap();
try {
System.out.printf(">>> Exception caught: %s", t.getMessage());
t.printStackTrace();
requestMap.put("exceptionMessage", t.getMessage());
ExternalContext extContext = fc.getExternalContext();
String url = extContext.encodeActionURL(extContext.getRequestContextPath() + "/500.xhtml");
extContext.redirect(url);
} catch (Exception e) {
String errorPageLocation = "/WEB-INF/500.xhtml";
fc.setViewRoot(fc.getApplication().getViewHandler().createView(fc, errorPageLocation));
fc.getPartialViewContext().setRenderAll(false);
fc.renderResponse();
} finally {
i.remove();
}
}
getWrapped().handle();
}
private void restoreView(FacesContext context) throws FacesException {
Application app = context.getApplication();
if (app instanceof ApplicationImpl) ((ApplicationImpl) app).initRequest();
ViewHandler view = app.getViewHandler();
view.initView(context);
UIViewRoot viewRoot = context.getViewRoot();
if (viewRoot != null) {
ExternalContext extContext = context.getExternalContext();
viewRoot.setLocale(extContext.getRequestLocale());
doSetBindings(context.getELContext(), viewRoot);
return;
}
String viewId = calculateViewId(context);
String renderKitId = view.calculateRenderKitId(context);
RenderKitFactory renderKitFactory =
(RenderKitFactory) FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY);
RenderKit renderKit = renderKitFactory.getRenderKit(context, renderKitId);
ResponseStateManager stateManager = renderKit.getResponseStateManager();
if (stateManager.isPostback(context)) {
viewRoot = view.restoreView(context, viewId);
if (viewRoot != null) {
doSetBindings(context.getELContext(), viewRoot);
} else {
// XXX: backward compat issues with ViewHandler and StateManager
// throw new ViewExpiredException(L.l("{0} is an expired view", viewId));
context.renderResponse();
viewRoot = view.createView(context, viewId);
context.setViewRoot(viewRoot);
}
context.setViewRoot(viewRoot);
} else {
context.renderResponse();
viewRoot = view.createView(context, viewId);
context.setViewRoot(viewRoot);
}
}
/** Decodes the data from the form. */
@Override
public void decode(FacesContext context, UIComponent component) {
String clientId = component.getClientId(context);
ExternalContext ext = context.getExternalContext();
Map<String, String> paramMap = ext.getRequestParameterMap();
String value = paramMap.get(clientId);
if (value != null) ((EditableValueHolder) component).setSubmittedValue(value);
}
@Override
public void afterPhase(PhaseEvent event) {
FacesContext facesContext = event.getFacesContext();
ExternalContext externalContext = facesContext.getExternalContext();
HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();
if (!request.getMethod().equals("POST")) {
Map<?, ?> flashScope =
(Map<?, ?>)
facesContext
.getApplication()
.createValueBinding("#{flashScope}")
.getValue(facesContext);
flashScope.clear();
}
}
private boolean sendError(FacesContext context, String lifecycle, Exception e) {
for (Throwable cause = e; cause != null; cause = cause.getCause()) {
if (cause instanceof DisplayableException) {
if (e instanceof RuntimeException) throw (RuntimeException) e;
else throw new FacesException(e);
} else if (cause instanceof ServletException) throw new FacesException(e);
else if (cause instanceof JspException) throw new FacesException(e);
}
ExternalContext extContext = context.getExternalContext();
Object response = extContext.getResponse();
if (!(response instanceof HttpServletResponse)) {
context.renderResponse();
if (e instanceof RuntimeException) throw (RuntimeException) e;
else throw new RuntimeException(e);
}
log.log(Level.WARNING, e.toString(), e);
HttpServletResponse res = (HttpServletResponse) response;
try {
context.renderResponse();
context.responseComplete();
res.setStatus(500, "JSF Exception");
res.setContentType("text/html");
PrintWriter out = res.getWriter();
out.println("<body>");
out.println("<h3>JSF exception detected in " + lifecycle + " phase</h3>");
String msg = e.getMessage();
out.println("<span style='color:red;font:bold'>" + Html.escapeHtml(msg) + "</span><br/>");
out.println("<h3>Context: " + context.getViewRoot() + "</h3>");
out.println("<code><pre>");
String errorId = null;
if (e instanceof FacesException && msg.startsWith("id=")) {
int p = msg.indexOf(' ');
errorId = msg.substring(3, p);
}
printComponentTree(out, errorId, context, context.getViewRoot(), 0);
out.println("</pre></code>");
if (!Alarm.isTest()) {
out.println("<h3>Stack Trace</h3>");
out.println("<pre>");
if (e.getCause() != null) e.getCause().printStackTrace(out);
else e.printStackTrace(out);
out.println("</pre>");
}
out.println("</body>");
// clear, so we don't just loop
Application app = context.getApplication();
ViewHandler view = app.getViewHandler();
UIViewRoot viewRoot = context.getViewRoot();
viewRoot = view.createView(context, viewRoot.getViewId());
context.setViewRoot(viewRoot);
// view.writeState(context); // XXX: no need to output state, but review.
return true;
} catch (IOException e1) {
throw new RuntimeException(e);
}
}
public static void outputResponseDocument(
final PipelineContext pipelineContext,
final ExternalContext externalContext,
final IndentedLogger indentedLogger,
final SAXStore annotatedDocument,
final XFormsContainingDocument containingDocument,
final XMLReceiver xmlReceiver)
throws SAXException, IOException {
final List<XFormsContainingDocument.Load> loads = containingDocument.getLoadsToRun();
if (containingDocument.isGotSubmissionReplaceAll()) {
// 1. Got a submission with replace="all"
// NOP: Response already sent out by a submission
// TODO: modify XFormsModelSubmission accordingly
indentedLogger.logDebug("", "handling response for submission with replace=\"all\"");
} else if (loads != null && loads.size() > 0) {
// 2. Got at least one xforms:load
// Send redirect out
// Get first load only
final XFormsContainingDocument.Load load = loads.get(0);
// Send redirect
final String redirectResource = load.getResource();
indentedLogger.logDebug(
"", "handling redirect response for xforms:load", "url", redirectResource);
// Set isNoRewrite to true, because the resource is either a relative path or already contains
// the servlet context
externalContext.getResponse().sendRedirect(redirectResource, null, false, false, true);
// Still send out a null document to signal that no further processing must take place
XMLUtils.streamNullDocument(xmlReceiver);
} else {
// 3. Regular case: produce an XHTML document out
final ElementHandlerController controller = new ElementHandlerController();
// Register handlers on controller (the other handlers are registered by the body handler)
{
controller.registerHandler(
XHTMLHeadHandler.class.getName(), XMLConstants.XHTML_NAMESPACE_URI, "head");
controller.registerHandler(
XHTMLBodyHandler.class.getName(), XMLConstants.XHTML_NAMESPACE_URI, "body");
// Register a handler for AVTs on HTML elements
final boolean hostLanguageAVTs =
XFormsProperties
.isHostLanguageAVTs(); // TODO: this should be obtained per document, but we only
// know about this in the extractor
if (hostLanguageAVTs) {
controller.registerHandler(
XXFormsAttributeHandler.class.getName(),
XFormsConstants.XXFORMS_NAMESPACE_URI,
"attribute");
controller.registerHandler(
XHTMLElementHandler.class.getName(), XMLConstants.XHTML_NAMESPACE_URI);
}
// Swallow XForms elements that are unknown
controller.registerHandler(
NullHandler.class.getName(), XFormsConstants.XFORMS_NAMESPACE_URI);
controller.registerHandler(
NullHandler.class.getName(), XFormsConstants.XXFORMS_NAMESPACE_URI);
controller.registerHandler(NullHandler.class.getName(), XFormsConstants.XBL_NAMESPACE_URI);
}
// Set final output
controller.setOutput(new DeferredXMLReceiverImpl(xmlReceiver));
// Set handler context
controller.setElementHandlerContext(
new HandlerContext(
controller, pipelineContext, containingDocument, externalContext, null));
// Process the entire input
annotatedDocument.replay(
new ExceptionWrapperXMLReceiver(controller, "converting XHTML+XForms document to XHTML"));
}
containingDocument.afterInitialResponse();
}
