application.getrequestcyclelisteners().add(new abstractrequestcyclelistener() {
irequsthandler onexception(e) {
Throwable cause = e;
if (cause instanceof WicketRuntimeException) {
cause = cause.getCause();
}
if (cause instanceof InvocationTargetException) {
cause = cause.getCause();
}
if (cause instanceof WicketResourceGoneException
|| cause instanceof ResourceGoneException) {
return new renderpagerequesthandler(new
ResourceGonePage((WicketResourceGoneException)cause));
}
if (cause instanceof ResourceNotFoundException) {
return new renderpagerequesthandler(new
NotFoundPage((ResourceNotFoundException)cause));
}
});
-igor
On Mon, Nov 14, 2011 at 3:34 PM, Nelson Segura <nsegu...@gmail.com> wrote:
> Hello,
> I am starting to migrate from 1.4 to 1.5.
> I am having problems trying to figure out exactly what is the best way
> to do the following.
>
> I have some custom exception and some custom pages for when the code
> throws those exception. In 1.4 this seemed trivial. For example
>
>
> ......
>
> public class MyRequestLifecycle extends WebRequestCycle {
>
> public MyRequestLifecycle(org.apache.wicket.protocol.http.WebApplication
> application,
> WebRequest request,
> Response response) {
> super(application, request, response);
> }
>
> @Override
> public Page onRuntimeException(Page page, RuntimeException e) {
> Throwable cause = e;
> if (cause instanceof WicketRuntimeException) {
> cause = cause.getCause();
> }
>
> if (cause instanceof InvocationTargetException) {
> cause = cause.getCause();
> }
>
> if (cause instanceof WicketResourceGoneException
> || cause instanceof ResourceGoneException) {
> return new ResourceGonePage((WicketResourceGoneException)cause);
> }
>
> if (cause instanceof ResourceNotFoundException) {
> return new NotFoundPage((ResourceNotFoundException)cause);
> }
> return super.onRuntimeException(page, e);
> }
>
> }
>
>
> But I can't figure out a clean / easy way to do this in 1.5. I seems
> that I need to write a lot of code to accomplish this.
>
> I am looking at the following links:
>
> https://cwiki.apache.org/WICKET/migration-to-wicket-15.html
> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html
>
> Problems are:
> - Which class should I be extend or implementing.
> AbstractRequestCycleListener? IExceptionMapper? IRequestHandler?
> - How do I get access to the current page?
> If I return a IRequestHandler, how do I create one. Do I need to
> create one? Can I use the current one? do I need to worry if this is
> part of an AjaxRequest? I have looked at code in
> AbstractRequestCycleListener, SystemMapper, CompoundRequestMapper,
> DefaultExceptionMapper, etc. It all seems too low level compared to
> other Wicket APIs, that makes me think I am missing something.
>
> What should I do?
>
> -Nelson
>
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