Actually 5.2 has an HttpError class you can return from the activate
event, thus:
Object onActivate(EventContext context) {
_context = context;
if (_context.getCount() == 0) return null;
return new HttpError(404, "Resource not found.");
}
On Sat, Oct 16, 2010 at 9:45 AM, Josh Canfield <[email protected]> wrote:
>> Can somebody please explain how I can work around this for the novice here?
>
> It depends on what you wan to do.
>
> If you are looking to prevent tapestry from handling specific urls
> then you can contribute to the ignored paths filter as described here:
> http://tapestry.apache.org/tapestry5/guide/conf.html
>
> public static void contributeIgnoredPathsFilter(Configuration<String>
> configuration)
> {
> configuration.add("/dwr/.*");
> }
>
> If you just want to prevent unknown urls from the Index page then you
> can do this really quick:
>
> StreamResponse onActivate(EventContext context) {
> _context = context;
> if (_context.getCount() == 0) return null;
>
> return new StreamResponse() {
>
> public String getContentType() {
> return "";
> }
>
> public InputStream getStream() throws IOException {
> return new ByteArrayInputStream(new byte[]{0});
> }
>
> public void prepareResponse(Response response) {
> try {
> response.sendError(404, "Page not found");
> } catch (IOException e) {
> throw new RuntimeException("Failed to redirect?", e);
> }
> }
> };
> }
>
> If you think you want to do something like this from more places then
> consider creating your own ComponentEventResultProcessor for handling
> a custom http error type.... there is an example floating around
> somewhere but I've run out of time to find it.
>
> Josh
>
> On Sat, Oct 16, 2010 at 2:24 AM, stephanos <[email protected]> wrote:
>>
>>> I think the best approach is to leverage the ignored paths mechanism.
>>> That is early in the response processing pipeline, and will have a
>>> good chance to ignore what should be ignored.
>>
>> Can somebody please explain how I can work around this for the novice here?
>> :)
>>
>> Help very appreciated!
>> --
>> View this message in context:
>> http://tapestry.1045711.n5.nabble.com/No-404-error-is-raised-tp3212773p3214941.html
>> Sent from the Tapestry - User mailing list archive at Nabble.com.
>>
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