This is a tricky error to fix. At issue is the fact that the page activation context can, theoretically, look like anything: strings, numbers, path-like-stuff, whatever. The layers of conversion from the path in the URL to, ultimately, numbers or entity objects happens very, very late. In theory, the number of values, and their type, may vary from request to request (in practice, this is highly doubtful!).
By the time Tapestry gets to the point where it can figure out if the page activation context is valid, it's actually past the point where it has committed to handling the request. I can imagine fixing this by adding a new event to the page lifecycle that allows the page to look at the event context and decide whether to continue. However, this would either have to be kludged into some existing place it doesn't belong, or will require some changes to public APIs. 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. On Fri, Oct 15, 2010 at 1:27 AM, Moritz Gmelin <moritz.gme...@gmx.de> wrote: > Hi, > > we've been running into this also. > > Fixed this by creating a custom 404 page and setting this as the default > start page. > > FourOhFour.tml > > <html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";> > <head> > <meta http-equiv="Refresh" content="0; url=${starturl}" /> > </head> > <body> > Page not found > </body> > </html> > > > And FourOhFour.java > > import org.apache.tapestry5.Link; > import org.apache.tapestry5.annotations.AfterRender; > import org.apache.tapestry5.ioc.annotations.Inject; > import org.apache.tapestry5.services.PageRenderLinkSource; > import org.apache.tapestry5.services.Response; > > public class FourOhFour > { > > �...@inject > private Response response; > > �...@inject > private PageRenderLinkSource resources; > > > �...@afterrender > public void afterRender() > { > response.setStatus(404); > } > > > public Link getStartURL() > { > return > resources.createPageRenderLink(SomeOtherStartPage.class); > } > > } > > And in AppModule we set the default start page to our FourOhFour page > > public static void contributeApplicationDefaults( > MappedConfiguration<String, String> > configuration) > { > configuration.add(SymbolConstants.START_PAGE_NAME, > "FourOhFour"); > > } > > > Hope this helps. > > M. > > > Am 15.10.2010 um 10:09 schrieb stephanos: > >> >>> As the JIRA ticket says, this is expected behavior. In your case, /blabla >>> is considered a request to / (Index) with one activation context parameter >>> 'blabla' as there's no page named 'blabla'. >> >> I was just wondering why the ticket is still 'Open' and has a patch that >> apparently was never actually used... >> >>> Hmm... that's true, the Start page is "broken" as well in 5.2 - you >>> can't get it to return 404s anymore using Start page the same way as >>> in 5.1. >> >> So the solution should be renaming it 'Start.tml' (could be documented >> somewhere *g*)? I used 5.2 straight away without 5.1 because I needed the >> Spring 3 support. Could you open a JIRA issue then? - it might be better if >> an experienced tapestry user opens it :) >> >> Cheers! >> -- >> View this message in context: >> http://tapestry.1045711.n5.nabble.com/No-404-error-is-raised-tp3212773p3213305.html >> Sent from the Tapestry - User mailing list archive at Nabble.com. >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org >> For additional commands, e-mail: users-h...@tapestry.apache.org >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- Howard M. Lewis Ship Creator of Apache Tapestry The source for Tapestry training, mentoring and support. Contact me to learn how I can get you up and productive in Tapestry fast! (971) 678-5210 http://howardlewisship.com --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
