Hi, I don't know if it is a proper way but this is how I did it.
1. Extended WebRequestCycle
@Override
public Page onRuntimeException(Page page, RuntimeException e) {
// if error was during application running e.g. when Home page was
loaded and if it was an ajax request that caused problem
if (page instanceof Home && RequestCycle.get().getRequestTarget()
instanceof AjaxRequestTarget) {
// On my Home page there is a js ModalWindow into which I place
the error text
ModalWindow errorPage = (ModalWindow)page.get("modalErrorPage");
final ResourceModel message = new
ResourceModel("gorillaUrlError");
errorPage.setContent( "... ");
errorPage.show((AjaxRequestTarget)RequestCycle.get().getRequestTarget());
}
return null;
2. Extended WebRequestCycleProcessor to comment out placing 500 error code
into Ajax response.
@Override
public void respond(RuntimeException e, RequestCycle requestCycle)
{
// If application doesn't want debug info showing up for users
final Application application = Application.get();
final IExceptionSettings settings =
application.getExceptionSettings();
final Page responsePage = requestCycle.getResponsePage();
Page override = onRuntimeException(responsePage, e);
if (override != null)
{
throw new RestartResponseException(override);
}
else if (e instanceof AuthorizationException)
{
// are authorization exceptions always thrown before the real
// render?
// else we need to make a page (see below) or set it hard to a
// redirect.
Class<? extends Page> accessDeniedPageClass =
application.getApplicationSettings()
.getAccessDeniedPage();
throw new
RestartResponseAtInterceptPageException(accessDeniedPageClass);
}
else if (e instanceof PageExpiredException)
{
Class<? extends Page> pageExpiredErrorPageClass =
application.getApplicationSettings()
.getPageExpiredErrorPage();
boolean mounted = isPageMounted(pageExpiredErrorPageClass);
RequestCycle.get().setRedirect(mounted);
throw new RestartResponseException(pageExpiredErrorPageClass);
}
else if (settings.getUnexpectedExceptionDisplay() !=
IExceptionSettings.SHOW_NO_EXCEPTION_PAGE)
{
// we do not want to redirect - we want to inline the error
output
// and preserve the url so when the refresh button is pressed we
// rerun the code that caused the error
// However we don't what to do this in a situation where we are
in portlet mode
if (!RequestContext.get().isPortletRequest())
{
requestCycle.setRedirect(false);
}
// figure out which error page to show
Class<? extends Page> internalErrorPageClass =
application.getApplicationSettings()
.getInternalErrorPage();
Class<? extends Page> responseClass = responsePage != null ?
responsePage.getClass()
: null;
if (responseClass != internalErrorPageClass &&
settings.getUnexpectedExceptionDisplay() ==
IExceptionSettings.SHOW_INTERNAL_ERROR_PAGE)
{
throw new RestartResponseException(internalErrorPageClass);
}
else if (responseClass != ExceptionErrorPage.class)
{
// Show full details
throw new RestartResponseException(new ExceptionErrorPage(e,
responsePage));
}
else
{
// give up while we're ahead!
throw new WicketRuntimeException("Internal Error: Could not
render error page " +
internalErrorPageClass, e);
}
}
else if (requestCycle.getResponse() instanceof WebResponse)
{
// commented out so that error code is not set to header
// it was set in case of runtime Java exception and
SHOW_NO_EXCEPTION_PAGE option of application
//
((WebResponse)requestCycle.getResponse()).getHttpServletResponse().setStatus(
// HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
}
3. Overridden 2 methods in WebApplication
public RequestCycle newRequestCycle(Request request, Response response) {
protected IRequestCycleProcessor newRequestCycleProcessor() {
That's it.
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