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Posted to users@wicket.apache.org by James Eliyezar <ja...@mcruncher.com> on 2012/08/29 06:37:49 UTC
Unable to get response page from PageRequestHandlerTracker
Hi,
We recently migrated our application to wicket-1.5.8.
We have an audit aspect based on Spring AOP that shall log the actions
performed in the current page.
In wicket 1.4 we use to get that like
"RequestCycle.get().getResponsePage()".
This has changed and I know that wicket 1.5 doesn't support this anymore.
The suggested method as per the wiki is to "use a custom
RequestCycleListener<https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
".
Fortunately, as highlighted in the mailing list, there is a new class in
wicket 1.5.8 named
PageRequestHandlerTracker<http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html>to
meet this common requirement.
However, when we use
PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
and then attempt to call #getPage(), a null pointer exception is thrown.
Am I doing something wrong here? Please give your suggestions.
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
I second that Vineet.
On Wed, Aug 29, 2012 at 4:12 PM, vineet semwal <vi...@gmail.com>wrote:
> passing Requestcycle is kind of useless.., PageRequestHandlerTracker
> can itself get the current requestcycle,i think separate methods like
> getLastHandler() and getFirstHandler() can be added , they can just
> delegate to the respectve getMethod(RequestCycle)
>
> On Wed, Aug 29, 2012 at 1:32 PM, Martin Grigorov <mg...@apache.org>
> wrote:
> > Thanks !
> >
> > On Wed, Aug 29, 2012 at 10:00 AM, James Eliyezar <ja...@mcruncher.com>
> wrote:
> >> Updated the wiki "Request Cycle in Wicket
> >> 1.5<
> https://cwiki.apache.org/confluence/display/WICKET/RequestCycle+in+Wicket+1.5
> >
> >> "
> >>
> >> On Wed, Aug 29, 2012 at 3:31 PM, James Eliyezar <ja...@mcruncher.com>
> wrote:
> >>
> >>> That was fast Martin. I'm working on the wiki now.
> >>>
> >>>
> >>> On Wed, Aug 29, 2012 at 3:27 PM, Martin Grigorov <mgrigorov@apache.org
> >wrote:
> >>>
> >>>>
> >>>>
> https://git-wip-us.apache.org/repos/asf/wicket/repo?p=wicket.git;a=commitdiff;h=a5a1fe98e3b76110c6827b5744bf83f45ab0aac4
> >>>>
> >>>> On Wed, Aug 29, 2012 at 9:19 AM, James Eliyezar <ja...@mcruncher.com>
> >>>> wrote:
> >>>> > I like that deal.. :-)
> >>>> >
> >>>> > On Wed, Aug 29, 2012 at 3:09 PM, Martin Grigorov <
> mgrigorov@apache.org
> >>>> >wrote:
> >>>> >
> >>>> >> I'll improve the javadoc. You improve the wiki page ;-)
> >>>> >>
> >>>> >> On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <
> james@mcruncher.com>
> >>>> >> wrote:
> >>>> >> > Thanks Martin for the info.
> >>>> >> > A note in PageRequestHandlerTracker's javadoc can be very useful.
> >>>> >> > And it will be great if this is reflected in the wiki page
> "Request
> >>>> Cycle
> >>>> >> > in wicket 1.5<
> >>>> >> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> >>>> >> > ".
> >>>> >> >
> >>>> >> > On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <
> >>>> mgrigorov@apache.org
> >>>> >> >wrote:
> >>>> >> >
> >>>> >> >> Hi,
> >>>> >> >>
> >>>> >> >> Yes, you have to register it.
> >>>> >> >> It is not registered by default because not everyone needs it.
> >>>> >> >>
> >>>> >> >> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <
> >>>> james@mcruncher.com>
> >>>> >> >> wrote:
> >>>> >> >> > Guys,
> >>>> >> >> >
> >>>> >> >> > From the javadoc of IRequestCycleListener, I found that we
> have to
> >>>> >> >> > explicitly register the implementations.
> >>>> >> >> > I thought PageRequestHandlerTracker would have been
> registered by
> >>>> >> default
> >>>> >> >> > as that's from wicket.
> >>>> >> >> > So, when I registered it manually, it worked as expected.
> This is
> >>>> how
> >>>> >> I
> >>>> >> >> > registered it in the wicket application's "init" method.
> >>>> >> >> >
> >>>> >> >> > @Override
> >>>> >> >> >> public void init()
> >>>> >> >> >> {
> >>>> >> >> >> super.init();
> >>>> >> >> >> getRequestCycleListeners().add(new
> >>>> >> PageRequestHandlerTracker());
> >>>> >> >> >> }
> >>>> >> >> >>
> >>>> >> >> >
> >>>> >> >> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <
> >>>> james@mcruncher.com>
> >>>> >> >> wrote:
> >>>> >> >> >
> >>>> >> >> >> Should I register PageRequestHandlerTracker anywhere?
> >>>> >> >> >>
> >>>> >> >> >>
> >>>> >> >> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <
> >>>> james@mcruncher.com
> >>>> >> >> >wrote:
> >>>> >> >> >>
> >>>> >> >> >>> Alright Paul.
> >>>> >> >> >>>
> >>>> >> >> >>> This is my code:
> >>>> >> >> >>>
> >>>> >> >> >>> public class HomePage extends WebPage
> >>>> >> >> >>>> {
> >>>> >> >> >>>> private static Logger logger =
> >>>> >> >> >>>> LoggerFactory.getLogger(HomePage.class);
> >>>> >> >> >>>> private static final long serialVersionUID = 1L;
> >>>> >> >> >>>>
> >>>> >> >> >>>> public HomePage(final PageParameters parameters)
> >>>> >> >> >>>> {
> >>>> >> >> >>>> add(new Label("version",
> >>>> >> >> >>>> getApplication().getFrameworkSettings().getVersion()));
> >>>> >> >> >>>> try {
> >>>> >> >> >>>> IPageRequestHandler lastHandler =
> >>>> >> >> >>>>
> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
> >>>> >> >> >>>> logger.debug("Last handler: {}", lastHandler);
> >>>> >> >> >>>> logger.debug("Requested page",
> >>>> lastHandler.getPage());
> >>>> >> >> >>>> } catch (Exception ex) {
> >>>> >> >> >>>> logger.error("Error", ex);
> >>>> >> >> >>>> }
> >>>> >> >> >>>> }
> >>>> >> >> >>>> }
> >>>> >> >> >>>>
> >>>> >> >> >>>>
> >>>> >> >> >>> This is the log with exception stack trace:
> >>>> >> >> >>>
> >>>> >> >> >>> [INFO] Started Jetty Server
> >>>> >> >> >>>> DEBUG - HomePage - Last handler: null
> >>>> >> >> >>>> ERROR - DefaultExceptionMapper - Unexpected error
> occurred
> >>>> >> >> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate
> >>>> page
> >>>> >> using
> >>>> >> >> >>>> constructor 'public
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
> >>>> >> >> >>>> and argument ''. Might be it doesn't exist, may be it is
> not
> >>>> >> visible
> >>>> >> >> >>>> (public).
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
> >>>> >> >> >>>> at
> org.eclipse.jetty.server.Server.handle(Server.java:349)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
> >>>> >> >> >>>> at
> >>>> >> >> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >>
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
> >>>> >> >> >>>> at java.lang.Thread.run(Thread.java:662)
> >>>> >> >> >>>> Caused by: java.lang.reflect.InvocationTargetException
> >>>> >> >> >>>> at
> >>>> >> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >>>> >> >> >>>> Method)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> >>>> >> >> >>>> at
> >>>> >> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> >>>> >> >> >>>> at
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
> >>>> >> >> >>>> ... 41 more
> >>>> >> >> >>>> Caused by: java.lang.NullPointerException
> >>>> >> >> >>>> at
> >>>> >> org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
> >>>> >> >> >>>> ... 46 more
> >>>> >> >> >>>>
> >>>> >> >> >>>>
> >>>> >> >> >>> I've attached a quickstart project to recreate the problem.
> >>>> >> >> >>>
> >>>> >> >> >>> - Unzip it
> >>>> >> >> >>> - mvn clean package jetty:run
> >>>> >> >> >>> - Point your browser to http://localhost:8080
> >>>> >> >> >>> - Watch out the console for the exception.
> >>>> >> >> >>>
> >>>> >> >> >>>
> >>>> >> >> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws>
> >>>> wrote:
> >>>> >> >> >>>
> >>>> >> >> >>>> Might help if you provide a stack trace for the NPE :)
> >>>> >> >> >>>>
> >>>> >> >> >>>> Have a great day,
> >>>> >> >> >>>> Paul Borș
> >>>> >> >> >>>>
> >>>> >> >> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <
> james@mcruncher.com>
> >>>> >> wrote:
> >>>> >> >> >>>>
> >>>> >> >> >>>> > Hi,
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > We recently migrated our application to wicket-1.5.8.
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > We have an audit aspect based on Spring AOP that shall
> log
> >>>> the
> >>>> >> >> actions
> >>>> >> >> >>>> > performed in the current page.
> >>>> >> >> >>>> > In wicket 1.4 we use to get that like
> >>>> >> >> >>>> > "RequestCycle.get().getResponsePage()".
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > This has changed and I know that wicket 1.5 doesn't
> support
> >>>> this
> >>>> >> >> >>>> anymore.
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > The suggested method as per the wiki is to "use a custom
> >>>> >> >> >>>> > RequestCycleListener<
> >>>> >> >> >>>>
> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html
> >>>> >
> >>>> >> >> >>>> > ".
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > Fortunately, as highlighted in the mailing list, there
> is a
> >>>> new
> >>>> >> >> class
> >>>> >> >> >>>> in
> >>>> >> >> >>>> > wicket 1.5.8 named
> >>>> >> >> >>>> > PageRequestHandlerTracker<
> >>>> >> >> >>>>
> >>>> >> >>
> >>>> >>
> >>>>
> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
> >>>> >> >> >>>> >to
> >>>> >> >> >>>> > meet this common requirement.
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > However, when we use
> >>>> >> >> >>>> >
> PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
> >>>> >> >> >>>> > and then attempt to call #getPage(), a null pointer
> >>>> exception is
> >>>> >> >> >>>> thrown.
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > Am I doing something wrong here? Please give your
> >>>> suggestions.
> >>>> >> >> >>>> >
> >>>> >> >> >>>> > --
> >>>> >> >> >>>> > Thanks & regards
> >>>> >> >> >>>> > James Selvakumar
> >>>> >> >> >>>> > mcruncher.com
> >>>> >> >> >>>>
> >>>> >> >> >>>>
> >>>> >>
> ---------------------------------------------------------------------
> >>>> >> >> >>>> To unsubscribe, e-mail:
> users-unsubscribe@wicket.apache.org
> >>>> >> >> >>>> For additional commands, e-mail:
> users-help@wicket.apache.org
> >>>> >> >> >>>>
> >>>> >> >> >>>>
> >>>> >> >> >>>
> >>>> >> >> >>>
> >>>> >> >> >>> --
> >>>> >> >> >>> Thanks & regards
> >>>> >> >> >>> James Selvakumar
> >>>> >> >> >>> mcruncher.com
> >>>> >> >> >>>
> >>>> >> >> >>>
> >>>> >> >> >>
> >>>> >> >> >>
> >>>> >> >> >> --
> >>>> >> >> >> Thanks & regards
> >>>> >> >> >> James Selvakumar
> >>>> >> >> >> mcruncher.com
> >>>> >> >> >>
> >>>> >> >> >>
> >>>> >> >> >
> >>>> >> >> >
> >>>> >> >> > --
> >>>> >> >> > Thanks & regards
> >>>> >> >> > James Selvakumar
> >>>> >> >> > mcruncher.com
> >>>> >> >>
> >>>> >> >>
> >>>> >> >>
> >>>> >> >> --
> >>>> >> >> Martin Grigorov
> >>>> >> >> jWeekend
> >>>> >> >> Training, Consulting, Development
> >>>> >> >> http://jWeekend.com
> >>>> >> >>
> >>>> >> >>
> >>>> ---------------------------------------------------------------------
> >>>> >> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >>>> >> >> For additional commands, e-mail: users-help@wicket.apache.org
> >>>> >> >>
> >>>> >> >>
> >>>> >> >
> >>>> >> >
> >>>> >> > --
> >>>> >> > Thanks & regards
> >>>> >> > James Selvakumar
> >>>> >> > mcruncher.com
> >>>> >>
> >>>> >>
> >>>> >>
> >>>> >> --
> >>>> >> Martin Grigorov
> >>>> >> jWeekend
> >>>> >> Training, Consulting, Development
> >>>> >> http://jWeekend.com
> >>>> >>
> >>>> >>
> ---------------------------------------------------------------------
> >>>> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >>>> >> For additional commands, e-mail: users-help@wicket.apache.org
> >>>> >>
> >>>> >>
> >>>> >
> >>>> >
> >>>> > --
> >>>> > Thanks & regards
> >>>> > James Selvakumar
> >>>> > mcruncher.com
> >>>>
> >>>>
> >>>>
> >>>> --
> >>>> Martin Grigorov
> >>>> jWeekend
> >>>> Training, Consulting, Development
> >>>> http://jWeekend.com
> >>>>
> >>>> ---------------------------------------------------------------------
> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >>>> For additional commands, e-mail: users-help@wicket.apache.org
> >>>>
> >>>>
> >>>
> >>>
> >>> --
> >>> Thanks & regards
> >>> James Selvakumar
> >>> mcruncher.com
> >>>
> >>>
> >>
> >>
> >> --
> >> Thanks & regards
> >> James Selvakumar
> >> mcruncher.com
> >
> >
> >
> > --
> > Martin Grigorov
> > jWeekend
> > Training, Consulting, Development
> > http://jWeekend.com
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > For additional commands, e-mail: users-help@wicket.apache.org
> >
>
>
>
> --
> regards,
>
> Vineet Semwal
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by vineet semwal <vi...@gmail.com>.
passing Requestcycle is kind of useless.., PageRequestHandlerTracker
can itself get the current requestcycle,i think separate methods like
getLastHandler() and getFirstHandler() can be added , they can just
delegate to the respectve getMethod(RequestCycle)
On Wed, Aug 29, 2012 at 1:32 PM, Martin Grigorov <mg...@apache.org> wrote:
> Thanks !
>
> On Wed, Aug 29, 2012 at 10:00 AM, James Eliyezar <ja...@mcruncher.com> wrote:
>> Updated the wiki "Request Cycle in Wicket
>> 1.5<https://cwiki.apache.org/confluence/display/WICKET/RequestCycle+in+Wicket+1.5>
>> "
>>
>> On Wed, Aug 29, 2012 at 3:31 PM, James Eliyezar <ja...@mcruncher.com> wrote:
>>
>>> That was fast Martin. I'm working on the wiki now.
>>>
>>>
>>> On Wed, Aug 29, 2012 at 3:27 PM, Martin Grigorov <mg...@apache.org>wrote:
>>>
>>>>
>>>> https://git-wip-us.apache.org/repos/asf/wicket/repo?p=wicket.git;a=commitdiff;h=a5a1fe98e3b76110c6827b5744bf83f45ab0aac4
>>>>
>>>> On Wed, Aug 29, 2012 at 9:19 AM, James Eliyezar <ja...@mcruncher.com>
>>>> wrote:
>>>> > I like that deal.. :-)
>>>> >
>>>> > On Wed, Aug 29, 2012 at 3:09 PM, Martin Grigorov <mgrigorov@apache.org
>>>> >wrote:
>>>> >
>>>> >> I'll improve the javadoc. You improve the wiki page ;-)
>>>> >>
>>>> >> On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <ja...@mcruncher.com>
>>>> >> wrote:
>>>> >> > Thanks Martin for the info.
>>>> >> > A note in PageRequestHandlerTracker's javadoc can be very useful.
>>>> >> > And it will be great if this is reflected in the wiki page "Request
>>>> Cycle
>>>> >> > in wicket 1.5<
>>>> >> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>>>> >> > ".
>>>> >> >
>>>> >> > On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <
>>>> mgrigorov@apache.org
>>>> >> >wrote:
>>>> >> >
>>>> >> >> Hi,
>>>> >> >>
>>>> >> >> Yes, you have to register it.
>>>> >> >> It is not registered by default because not everyone needs it.
>>>> >> >>
>>>> >> >> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <
>>>> james@mcruncher.com>
>>>> >> >> wrote:
>>>> >> >> > Guys,
>>>> >> >> >
>>>> >> >> > From the javadoc of IRequestCycleListener, I found that we have to
>>>> >> >> > explicitly register the implementations.
>>>> >> >> > I thought PageRequestHandlerTracker would have been registered by
>>>> >> default
>>>> >> >> > as that's from wicket.
>>>> >> >> > So, when I registered it manually, it worked as expected. This is
>>>> how
>>>> >> I
>>>> >> >> > registered it in the wicket application's "init" method.
>>>> >> >> >
>>>> >> >> > @Override
>>>> >> >> >> public void init()
>>>> >> >> >> {
>>>> >> >> >> super.init();
>>>> >> >> >> getRequestCycleListeners().add(new
>>>> >> PageRequestHandlerTracker());
>>>> >> >> >> }
>>>> >> >> >>
>>>> >> >> >
>>>> >> >> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <
>>>> james@mcruncher.com>
>>>> >> >> wrote:
>>>> >> >> >
>>>> >> >> >> Should I register PageRequestHandlerTracker anywhere?
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <
>>>> james@mcruncher.com
>>>> >> >> >wrote:
>>>> >> >> >>
>>>> >> >> >>> Alright Paul.
>>>> >> >> >>>
>>>> >> >> >>> This is my code:
>>>> >> >> >>>
>>>> >> >> >>> public class HomePage extends WebPage
>>>> >> >> >>>> {
>>>> >> >> >>>> private static Logger logger =
>>>> >> >> >>>> LoggerFactory.getLogger(HomePage.class);
>>>> >> >> >>>> private static final long serialVersionUID = 1L;
>>>> >> >> >>>>
>>>> >> >> >>>> public HomePage(final PageParameters parameters)
>>>> >> >> >>>> {
>>>> >> >> >>>> add(new Label("version",
>>>> >> >> >>>> getApplication().getFrameworkSettings().getVersion()));
>>>> >> >> >>>> try {
>>>> >> >> >>>> IPageRequestHandler lastHandler =
>>>> >> >> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>>>> >> >> >>>> logger.debug("Last handler: {}", lastHandler);
>>>> >> >> >>>> logger.debug("Requested page",
>>>> lastHandler.getPage());
>>>> >> >> >>>> } catch (Exception ex) {
>>>> >> >> >>>> logger.error("Error", ex);
>>>> >> >> >>>> }
>>>> >> >> >>>> }
>>>> >> >> >>>> }
>>>> >> >> >>>>
>>>> >> >> >>>>
>>>> >> >> >>> This is the log with exception stack trace:
>>>> >> >> >>>
>>>> >> >> >>> [INFO] Started Jetty Server
>>>> >> >> >>>> DEBUG - HomePage - Last handler: null
>>>> >> >> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>>>> >> >> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate
>>>> page
>>>> >> using
>>>> >> >> >>>> constructor 'public
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>>>> >> >> >>>> and argument ''. Might be it doesn't exist, may be it is not
>>>> >> visible
>>>> >> >> >>>> (public).
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>>>> >> >> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>>>> >> >> >>>> at
>>>> >> >> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>>>> >> >> >>>> at java.lang.Thread.run(Thread.java:662)
>>>> >> >> >>>> Caused by: java.lang.reflect.InvocationTargetException
>>>> >> >> >>>> at
>>>> >> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>>>> >> >> >>>> Method)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>>>> >> >> >>>> at
>>>> >> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>>>> >> >> >>>> at
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>>>> >> >> >>>> ... 41 more
>>>> >> >> >>>> Caused by: java.lang.NullPointerException
>>>> >> >> >>>> at
>>>> >> org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>>>> >> >> >>>> ... 46 more
>>>> >> >> >>>>
>>>> >> >> >>>>
>>>> >> >> >>> I've attached a quickstart project to recreate the problem.
>>>> >> >> >>>
>>>> >> >> >>> - Unzip it
>>>> >> >> >>> - mvn clean package jetty:run
>>>> >> >> >>> - Point your browser to http://localhost:8080
>>>> >> >> >>> - Watch out the console for the exception.
>>>> >> >> >>>
>>>> >> >> >>>
>>>> >> >> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws>
>>>> wrote:
>>>> >> >> >>>
>>>> >> >> >>>> Might help if you provide a stack trace for the NPE :)
>>>> >> >> >>>>
>>>> >> >> >>>> Have a great day,
>>>> >> >> >>>> Paul Borș
>>>> >> >> >>>>
>>>> >> >> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com>
>>>> >> wrote:
>>>> >> >> >>>>
>>>> >> >> >>>> > Hi,
>>>> >> >> >>>> >
>>>> >> >> >>>> > We recently migrated our application to wicket-1.5.8.
>>>> >> >> >>>> >
>>>> >> >> >>>> > We have an audit aspect based on Spring AOP that shall log
>>>> the
>>>> >> >> actions
>>>> >> >> >>>> > performed in the current page.
>>>> >> >> >>>> > In wicket 1.4 we use to get that like
>>>> >> >> >>>> > "RequestCycle.get().getResponsePage()".
>>>> >> >> >>>> >
>>>> >> >> >>>> > This has changed and I know that wicket 1.5 doesn't support
>>>> this
>>>> >> >> >>>> anymore.
>>>> >> >> >>>> >
>>>> >> >> >>>> > The suggested method as per the wiki is to "use a custom
>>>> >> >> >>>> > RequestCycleListener<
>>>> >> >> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html
>>>> >
>>>> >> >> >>>> > ".
>>>> >> >> >>>> >
>>>> >> >> >>>> > Fortunately, as highlighted in the mailing list, there is a
>>>> new
>>>> >> >> class
>>>> >> >> >>>> in
>>>> >> >> >>>> > wicket 1.5.8 named
>>>> >> >> >>>> > PageRequestHandlerTracker<
>>>> >> >> >>>>
>>>> >> >>
>>>> >>
>>>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>>>> >> >> >>>> >to
>>>> >> >> >>>> > meet this common requirement.
>>>> >> >> >>>> >
>>>> >> >> >>>> > However, when we use
>>>> >> >> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>>>> >> >> >>>> > and then attempt to call #getPage(), a null pointer
>>>> exception is
>>>> >> >> >>>> thrown.
>>>> >> >> >>>> >
>>>> >> >> >>>> > Am I doing something wrong here? Please give your
>>>> suggestions.
>>>> >> >> >>>> >
>>>> >> >> >>>> > --
>>>> >> >> >>>> > Thanks & regards
>>>> >> >> >>>> > James Selvakumar
>>>> >> >> >>>> > mcruncher.com
>>>> >> >> >>>>
>>>> >> >> >>>>
>>>> >> ---------------------------------------------------------------------
>>>> >> >> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> >> >> >>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>> >> >> >>>>
>>>> >> >> >>>>
>>>> >> >> >>>
>>>> >> >> >>>
>>>> >> >> >>> --
>>>> >> >> >>> Thanks & regards
>>>> >> >> >>> James Selvakumar
>>>> >> >> >>> mcruncher.com
>>>> >> >> >>>
>>>> >> >> >>>
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >> --
>>>> >> >> >> Thanks & regards
>>>> >> >> >> James Selvakumar
>>>> >> >> >> mcruncher.com
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > --
>>>> >> >> > Thanks & regards
>>>> >> >> > James Selvakumar
>>>> >> >> > mcruncher.com
>>>> >> >>
>>>> >> >>
>>>> >> >>
>>>> >> >> --
>>>> >> >> Martin Grigorov
>>>> >> >> jWeekend
>>>> >> >> Training, Consulting, Development
>>>> >> >> http://jWeekend.com
>>>> >> >>
>>>> >> >>
>>>> ---------------------------------------------------------------------
>>>> >> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> >> >> For additional commands, e-mail: users-help@wicket.apache.org
>>>> >> >>
>>>> >> >>
>>>> >> >
>>>> >> >
>>>> >> > --
>>>> >> > Thanks & regards
>>>> >> > James Selvakumar
>>>> >> > mcruncher.com
>>>> >>
>>>> >>
>>>> >>
>>>> >> --
>>>> >> Martin Grigorov
>>>> >> jWeekend
>>>> >> Training, Consulting, Development
>>>> >> http://jWeekend.com
>>>> >>
>>>> >> ---------------------------------------------------------------------
>>>> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> >> For additional commands, e-mail: users-help@wicket.apache.org
>>>> >>
>>>> >>
>>>> >
>>>> >
>>>> > --
>>>> > Thanks & regards
>>>> > James Selvakumar
>>>> > mcruncher.com
>>>>
>>>>
>>>>
>>>> --
>>>> Martin Grigorov
>>>> jWeekend
>>>> Training, Consulting, Development
>>>> http://jWeekend.com
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>
>>>>
>>>
>>>
>>> --
>>> Thanks & regards
>>> James Selvakumar
>>> mcruncher.com
>>>
>>>
>>
>>
>> --
>> Thanks & regards
>> James Selvakumar
>> mcruncher.com
>
>
>
> --
> Martin Grigorov
> jWeekend
> Training, Consulting, Development
> http://jWeekend.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
--
regards,
Vineet Semwal
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Unable to get response page from PageRequestHandlerTracker
Posted by Martin Grigorov <mg...@apache.org>.
Thanks !
On Wed, Aug 29, 2012 at 10:00 AM, James Eliyezar <ja...@mcruncher.com> wrote:
> Updated the wiki "Request Cycle in Wicket
> 1.5<https://cwiki.apache.org/confluence/display/WICKET/RequestCycle+in+Wicket+1.5>
> "
>
> On Wed, Aug 29, 2012 at 3:31 PM, James Eliyezar <ja...@mcruncher.com> wrote:
>
>> That was fast Martin. I'm working on the wiki now.
>>
>>
>> On Wed, Aug 29, 2012 at 3:27 PM, Martin Grigorov <mg...@apache.org>wrote:
>>
>>>
>>> https://git-wip-us.apache.org/repos/asf/wicket/repo?p=wicket.git;a=commitdiff;h=a5a1fe98e3b76110c6827b5744bf83f45ab0aac4
>>>
>>> On Wed, Aug 29, 2012 at 9:19 AM, James Eliyezar <ja...@mcruncher.com>
>>> wrote:
>>> > I like that deal.. :-)
>>> >
>>> > On Wed, Aug 29, 2012 at 3:09 PM, Martin Grigorov <mgrigorov@apache.org
>>> >wrote:
>>> >
>>> >> I'll improve the javadoc. You improve the wiki page ;-)
>>> >>
>>> >> On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <ja...@mcruncher.com>
>>> >> wrote:
>>> >> > Thanks Martin for the info.
>>> >> > A note in PageRequestHandlerTracker's javadoc can be very useful.
>>> >> > And it will be great if this is reflected in the wiki page "Request
>>> Cycle
>>> >> > in wicket 1.5<
>>> >> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>>> >> > ".
>>> >> >
>>> >> > On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <
>>> mgrigorov@apache.org
>>> >> >wrote:
>>> >> >
>>> >> >> Hi,
>>> >> >>
>>> >> >> Yes, you have to register it.
>>> >> >> It is not registered by default because not everyone needs it.
>>> >> >>
>>> >> >> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <
>>> james@mcruncher.com>
>>> >> >> wrote:
>>> >> >> > Guys,
>>> >> >> >
>>> >> >> > From the javadoc of IRequestCycleListener, I found that we have to
>>> >> >> > explicitly register the implementations.
>>> >> >> > I thought PageRequestHandlerTracker would have been registered by
>>> >> default
>>> >> >> > as that's from wicket.
>>> >> >> > So, when I registered it manually, it worked as expected. This is
>>> how
>>> >> I
>>> >> >> > registered it in the wicket application's "init" method.
>>> >> >> >
>>> >> >> > @Override
>>> >> >> >> public void init()
>>> >> >> >> {
>>> >> >> >> super.init();
>>> >> >> >> getRequestCycleListeners().add(new
>>> >> PageRequestHandlerTracker());
>>> >> >> >> }
>>> >> >> >>
>>> >> >> >
>>> >> >> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <
>>> james@mcruncher.com>
>>> >> >> wrote:
>>> >> >> >
>>> >> >> >> Should I register PageRequestHandlerTracker anywhere?
>>> >> >> >>
>>> >> >> >>
>>> >> >> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <
>>> james@mcruncher.com
>>> >> >> >wrote:
>>> >> >> >>
>>> >> >> >>> Alright Paul.
>>> >> >> >>>
>>> >> >> >>> This is my code:
>>> >> >> >>>
>>> >> >> >>> public class HomePage extends WebPage
>>> >> >> >>>> {
>>> >> >> >>>> private static Logger logger =
>>> >> >> >>>> LoggerFactory.getLogger(HomePage.class);
>>> >> >> >>>> private static final long serialVersionUID = 1L;
>>> >> >> >>>>
>>> >> >> >>>> public HomePage(final PageParameters parameters)
>>> >> >> >>>> {
>>> >> >> >>>> add(new Label("version",
>>> >> >> >>>> getApplication().getFrameworkSettings().getVersion()));
>>> >> >> >>>> try {
>>> >> >> >>>> IPageRequestHandler lastHandler =
>>> >> >> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>>> >> >> >>>> logger.debug("Last handler: {}", lastHandler);
>>> >> >> >>>> logger.debug("Requested page",
>>> lastHandler.getPage());
>>> >> >> >>>> } catch (Exception ex) {
>>> >> >> >>>> logger.error("Error", ex);
>>> >> >> >>>> }
>>> >> >> >>>> }
>>> >> >> >>>> }
>>> >> >> >>>>
>>> >> >> >>>>
>>> >> >> >>> This is the log with exception stack trace:
>>> >> >> >>>
>>> >> >> >>> [INFO] Started Jetty Server
>>> >> >> >>>> DEBUG - HomePage - Last handler: null
>>> >> >> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>>> >> >> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate
>>> page
>>> >> using
>>> >> >> >>>> constructor 'public
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>>> >> >> >>>> and argument ''. Might be it doesn't exist, may be it is not
>>> >> visible
>>> >> >> >>>> (public).
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>>> >> >> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>>> >> >> >>>> at
>>> >> >> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>>> >> >> >>>> at java.lang.Thread.run(Thread.java:662)
>>> >> >> >>>> Caused by: java.lang.reflect.InvocationTargetException
>>> >> >> >>>> at
>>> >> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>>> >> >> >>>> Method)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>>> >> >> >>>> at
>>> >> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>>> >> >> >>>> at
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>>> >> >> >>>> ... 41 more
>>> >> >> >>>> Caused by: java.lang.NullPointerException
>>> >> >> >>>> at
>>> >> org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>>> >> >> >>>> ... 46 more
>>> >> >> >>>>
>>> >> >> >>>>
>>> >> >> >>> I've attached a quickstart project to recreate the problem.
>>> >> >> >>>
>>> >> >> >>> - Unzip it
>>> >> >> >>> - mvn clean package jetty:run
>>> >> >> >>> - Point your browser to http://localhost:8080
>>> >> >> >>> - Watch out the console for the exception.
>>> >> >> >>>
>>> >> >> >>>
>>> >> >> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws>
>>> wrote:
>>> >> >> >>>
>>> >> >> >>>> Might help if you provide a stack trace for the NPE :)
>>> >> >> >>>>
>>> >> >> >>>> Have a great day,
>>> >> >> >>>> Paul Borș
>>> >> >> >>>>
>>> >> >> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com>
>>> >> wrote:
>>> >> >> >>>>
>>> >> >> >>>> > Hi,
>>> >> >> >>>> >
>>> >> >> >>>> > We recently migrated our application to wicket-1.5.8.
>>> >> >> >>>> >
>>> >> >> >>>> > We have an audit aspect based on Spring AOP that shall log
>>> the
>>> >> >> actions
>>> >> >> >>>> > performed in the current page.
>>> >> >> >>>> > In wicket 1.4 we use to get that like
>>> >> >> >>>> > "RequestCycle.get().getResponsePage()".
>>> >> >> >>>> >
>>> >> >> >>>> > This has changed and I know that wicket 1.5 doesn't support
>>> this
>>> >> >> >>>> anymore.
>>> >> >> >>>> >
>>> >> >> >>>> > The suggested method as per the wiki is to "use a custom
>>> >> >> >>>> > RequestCycleListener<
>>> >> >> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html
>>> >
>>> >> >> >>>> > ".
>>> >> >> >>>> >
>>> >> >> >>>> > Fortunately, as highlighted in the mailing list, there is a
>>> new
>>> >> >> class
>>> >> >> >>>> in
>>> >> >> >>>> > wicket 1.5.8 named
>>> >> >> >>>> > PageRequestHandlerTracker<
>>> >> >> >>>>
>>> >> >>
>>> >>
>>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>>> >> >> >>>> >to
>>> >> >> >>>> > meet this common requirement.
>>> >> >> >>>> >
>>> >> >> >>>> > However, when we use
>>> >> >> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>>> >> >> >>>> > and then attempt to call #getPage(), a null pointer
>>> exception is
>>> >> >> >>>> thrown.
>>> >> >> >>>> >
>>> >> >> >>>> > Am I doing something wrong here? Please give your
>>> suggestions.
>>> >> >> >>>> >
>>> >> >> >>>> > --
>>> >> >> >>>> > Thanks & regards
>>> >> >> >>>> > James Selvakumar
>>> >> >> >>>> > mcruncher.com
>>> >> >> >>>>
>>> >> >> >>>>
>>> >> ---------------------------------------------------------------------
>>> >> >> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> >> >> >>>> For additional commands, e-mail: users-help@wicket.apache.org
>>> >> >> >>>>
>>> >> >> >>>>
>>> >> >> >>>
>>> >> >> >>>
>>> >> >> >>> --
>>> >> >> >>> Thanks & regards
>>> >> >> >>> James Selvakumar
>>> >> >> >>> mcruncher.com
>>> >> >> >>>
>>> >> >> >>>
>>> >> >> >>
>>> >> >> >>
>>> >> >> >> --
>>> >> >> >> Thanks & regards
>>> >> >> >> James Selvakumar
>>> >> >> >> mcruncher.com
>>> >> >> >>
>>> >> >> >>
>>> >> >> >
>>> >> >> >
>>> >> >> > --
>>> >> >> > Thanks & regards
>>> >> >> > James Selvakumar
>>> >> >> > mcruncher.com
>>> >> >>
>>> >> >>
>>> >> >>
>>> >> >> --
>>> >> >> Martin Grigorov
>>> >> >> jWeekend
>>> >> >> Training, Consulting, Development
>>> >> >> http://jWeekend.com
>>> >> >>
>>> >> >>
>>> ---------------------------------------------------------------------
>>> >> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> >> >> For additional commands, e-mail: users-help@wicket.apache.org
>>> >> >>
>>> >> >>
>>> >> >
>>> >> >
>>> >> > --
>>> >> > Thanks & regards
>>> >> > James Selvakumar
>>> >> > mcruncher.com
>>> >>
>>> >>
>>> >>
>>> >> --
>>> >> Martin Grigorov
>>> >> jWeekend
>>> >> Training, Consulting, Development
>>> >> http://jWeekend.com
>>> >>
>>> >> ---------------------------------------------------------------------
>>> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> >> For additional commands, e-mail: users-help@wicket.apache.org
>>> >>
>>> >>
>>> >
>>> >
>>> > --
>>> > Thanks & regards
>>> > James Selvakumar
>>> > mcruncher.com
>>>
>>>
>>>
>>> --
>>> Martin Grigorov
>>> jWeekend
>>> Training, Consulting, Development
>>> http://jWeekend.com
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>
>>>
>>
>>
>> --
>> Thanks & regards
>> James Selvakumar
>> mcruncher.com
>>
>>
>
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
Updated the wiki "Request Cycle in Wicket
1.5<https://cwiki.apache.org/confluence/display/WICKET/RequestCycle+in+Wicket+1.5>
"
On Wed, Aug 29, 2012 at 3:31 PM, James Eliyezar <ja...@mcruncher.com> wrote:
> That was fast Martin. I'm working on the wiki now.
>
>
> On Wed, Aug 29, 2012 at 3:27 PM, Martin Grigorov <mg...@apache.org>wrote:
>
>>
>> https://git-wip-us.apache.org/repos/asf/wicket/repo?p=wicket.git;a=commitdiff;h=a5a1fe98e3b76110c6827b5744bf83f45ab0aac4
>>
>> On Wed, Aug 29, 2012 at 9:19 AM, James Eliyezar <ja...@mcruncher.com>
>> wrote:
>> > I like that deal.. :-)
>> >
>> > On Wed, Aug 29, 2012 at 3:09 PM, Martin Grigorov <mgrigorov@apache.org
>> >wrote:
>> >
>> >> I'll improve the javadoc. You improve the wiki page ;-)
>> >>
>> >> On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <ja...@mcruncher.com>
>> >> wrote:
>> >> > Thanks Martin for the info.
>> >> > A note in PageRequestHandlerTracker's javadoc can be very useful.
>> >> > And it will be great if this is reflected in the wiki page "Request
>> Cycle
>> >> > in wicket 1.5<
>> >> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>> >> > ".
>> >> >
>> >> > On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <
>> mgrigorov@apache.org
>> >> >wrote:
>> >> >
>> >> >> Hi,
>> >> >>
>> >> >> Yes, you have to register it.
>> >> >> It is not registered by default because not everyone needs it.
>> >> >>
>> >> >> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <
>> james@mcruncher.com>
>> >> >> wrote:
>> >> >> > Guys,
>> >> >> >
>> >> >> > From the javadoc of IRequestCycleListener, I found that we have to
>> >> >> > explicitly register the implementations.
>> >> >> > I thought PageRequestHandlerTracker would have been registered by
>> >> default
>> >> >> > as that's from wicket.
>> >> >> > So, when I registered it manually, it worked as expected. This is
>> how
>> >> I
>> >> >> > registered it in the wicket application's "init" method.
>> >> >> >
>> >> >> > @Override
>> >> >> >> public void init()
>> >> >> >> {
>> >> >> >> super.init();
>> >> >> >> getRequestCycleListeners().add(new
>> >> PageRequestHandlerTracker());
>> >> >> >> }
>> >> >> >>
>> >> >> >
>> >> >> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <
>> james@mcruncher.com>
>> >> >> wrote:
>> >> >> >
>> >> >> >> Should I register PageRequestHandlerTracker anywhere?
>> >> >> >>
>> >> >> >>
>> >> >> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <
>> james@mcruncher.com
>> >> >> >wrote:
>> >> >> >>
>> >> >> >>> Alright Paul.
>> >> >> >>>
>> >> >> >>> This is my code:
>> >> >> >>>
>> >> >> >>> public class HomePage extends WebPage
>> >> >> >>>> {
>> >> >> >>>> private static Logger logger =
>> >> >> >>>> LoggerFactory.getLogger(HomePage.class);
>> >> >> >>>> private static final long serialVersionUID = 1L;
>> >> >> >>>>
>> >> >> >>>> public HomePage(final PageParameters parameters)
>> >> >> >>>> {
>> >> >> >>>> add(new Label("version",
>> >> >> >>>> getApplication().getFrameworkSettings().getVersion()));
>> >> >> >>>> try {
>> >> >> >>>> IPageRequestHandler lastHandler =
>> >> >> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>> >> >> >>>> logger.debug("Last handler: {}", lastHandler);
>> >> >> >>>> logger.debug("Requested page",
>> lastHandler.getPage());
>> >> >> >>>> } catch (Exception ex) {
>> >> >> >>>> logger.error("Error", ex);
>> >> >> >>>> }
>> >> >> >>>> }
>> >> >> >>>> }
>> >> >> >>>>
>> >> >> >>>>
>> >> >> >>> This is the log with exception stack trace:
>> >> >> >>>
>> >> >> >>> [INFO] Started Jetty Server
>> >> >> >>>> DEBUG - HomePage - Last handler: null
>> >> >> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>> >> >> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate
>> page
>> >> using
>> >> >> >>>> constructor 'public
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>> >> >> >>>> and argument ''. Might be it doesn't exist, may be it is not
>> >> visible
>> >> >> >>>> (public).
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>> >> >> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>> >> >> >>>> at
>> >> >> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>> >> >> >>>> at
>> >> >> >>>>
>> >> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>> >> >> >>>> at java.lang.Thread.run(Thread.java:662)
>> >> >> >>>> Caused by: java.lang.reflect.InvocationTargetException
>> >> >> >>>> at
>> >> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>> >> >> >>>> Method)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>> >> >> >>>> at
>> >> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>> >> >> >>>> at
>> >> >> >>>>
>> >> >>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>> >> >> >>>> ... 41 more
>> >> >> >>>> Caused by: java.lang.NullPointerException
>> >> >> >>>> at
>> >> org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>> >> >> >>>> ... 46 more
>> >> >> >>>>
>> >> >> >>>>
>> >> >> >>> I've attached a quickstart project to recreate the problem.
>> >> >> >>>
>> >> >> >>> - Unzip it
>> >> >> >>> - mvn clean package jetty:run
>> >> >> >>> - Point your browser to http://localhost:8080
>> >> >> >>> - Watch out the console for the exception.
>> >> >> >>>
>> >> >> >>>
>> >> >> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws>
>> wrote:
>> >> >> >>>
>> >> >> >>>> Might help if you provide a stack trace for the NPE :)
>> >> >> >>>>
>> >> >> >>>> Have a great day,
>> >> >> >>>> Paul Borș
>> >> >> >>>>
>> >> >> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com>
>> >> wrote:
>> >> >> >>>>
>> >> >> >>>> > Hi,
>> >> >> >>>> >
>> >> >> >>>> > We recently migrated our application to wicket-1.5.8.
>> >> >> >>>> >
>> >> >> >>>> > We have an audit aspect based on Spring AOP that shall log
>> the
>> >> >> actions
>> >> >> >>>> > performed in the current page.
>> >> >> >>>> > In wicket 1.4 we use to get that like
>> >> >> >>>> > "RequestCycle.get().getResponsePage()".
>> >> >> >>>> >
>> >> >> >>>> > This has changed and I know that wicket 1.5 doesn't support
>> this
>> >> >> >>>> anymore.
>> >> >> >>>> >
>> >> >> >>>> > The suggested method as per the wiki is to "use a custom
>> >> >> >>>> > RequestCycleListener<
>> >> >> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html
>> >
>> >> >> >>>> > ".
>> >> >> >>>> >
>> >> >> >>>> > Fortunately, as highlighted in the mailing list, there is a
>> new
>> >> >> class
>> >> >> >>>> in
>> >> >> >>>> > wicket 1.5.8 named
>> >> >> >>>> > PageRequestHandlerTracker<
>> >> >> >>>>
>> >> >>
>> >>
>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>> >> >> >>>> >to
>> >> >> >>>> > meet this common requirement.
>> >> >> >>>> >
>> >> >> >>>> > However, when we use
>> >> >> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>> >> >> >>>> > and then attempt to call #getPage(), a null pointer
>> exception is
>> >> >> >>>> thrown.
>> >> >> >>>> >
>> >> >> >>>> > Am I doing something wrong here? Please give your
>> suggestions.
>> >> >> >>>> >
>> >> >> >>>> > --
>> >> >> >>>> > Thanks & regards
>> >> >> >>>> > James Selvakumar
>> >> >> >>>> > mcruncher.com
>> >> >> >>>>
>> >> >> >>>>
>> >> ---------------------------------------------------------------------
>> >> >> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> >> >> >>>> For additional commands, e-mail: users-help@wicket.apache.org
>> >> >> >>>>
>> >> >> >>>>
>> >> >> >>>
>> >> >> >>>
>> >> >> >>> --
>> >> >> >>> Thanks & regards
>> >> >> >>> James Selvakumar
>> >> >> >>> mcruncher.com
>> >> >> >>>
>> >> >> >>>
>> >> >> >>
>> >> >> >>
>> >> >> >> --
>> >> >> >> Thanks & regards
>> >> >> >> James Selvakumar
>> >> >> >> mcruncher.com
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >> >
>> >> >> > --
>> >> >> > Thanks & regards
>> >> >> > James Selvakumar
>> >> >> > mcruncher.com
>> >> >>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> Martin Grigorov
>> >> >> jWeekend
>> >> >> Training, Consulting, Development
>> >> >> http://jWeekend.com
>> >> >>
>> >> >>
>> ---------------------------------------------------------------------
>> >> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> >> >> For additional commands, e-mail: users-help@wicket.apache.org
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> > --
>> >> > Thanks & regards
>> >> > James Selvakumar
>> >> > mcruncher.com
>> >>
>> >>
>> >>
>> >> --
>> >> Martin Grigorov
>> >> jWeekend
>> >> Training, Consulting, Development
>> >> http://jWeekend.com
>> >>
>> >> ---------------------------------------------------------------------
>> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> >> For additional commands, e-mail: users-help@wicket.apache.org
>> >>
>> >>
>> >
>> >
>> > --
>> > Thanks & regards
>> > James Selvakumar
>> > mcruncher.com
>>
>>
>>
>> --
>> Martin Grigorov
>> jWeekend
>> Training, Consulting, Development
>> http://jWeekend.com
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
>
>
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
That was fast Martin. I'm working on the wiki now.
On Wed, Aug 29, 2012 at 3:27 PM, Martin Grigorov <mg...@apache.org>wrote:
>
> https://git-wip-us.apache.org/repos/asf/wicket/repo?p=wicket.git;a=commitdiff;h=a5a1fe98e3b76110c6827b5744bf83f45ab0aac4
>
> On Wed, Aug 29, 2012 at 9:19 AM, James Eliyezar <ja...@mcruncher.com>
> wrote:
> > I like that deal.. :-)
> >
> > On Wed, Aug 29, 2012 at 3:09 PM, Martin Grigorov <mgrigorov@apache.org
> >wrote:
> >
> >> I'll improve the javadoc. You improve the wiki page ;-)
> >>
> >> On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <ja...@mcruncher.com>
> >> wrote:
> >> > Thanks Martin for the info.
> >> > A note in PageRequestHandlerTracker's javadoc can be very useful.
> >> > And it will be great if this is reflected in the wiki page "Request
> Cycle
> >> > in wicket 1.5<
> >> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> >> > ".
> >> >
> >> > On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <
> mgrigorov@apache.org
> >> >wrote:
> >> >
> >> >> Hi,
> >> >>
> >> >> Yes, you have to register it.
> >> >> It is not registered by default because not everyone needs it.
> >> >>
> >> >> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <james@mcruncher.com
> >
> >> >> wrote:
> >> >> > Guys,
> >> >> >
> >> >> > From the javadoc of IRequestCycleListener, I found that we have to
> >> >> > explicitly register the implementations.
> >> >> > I thought PageRequestHandlerTracker would have been registered by
> >> default
> >> >> > as that's from wicket.
> >> >> > So, when I registered it manually, it worked as expected. This is
> how
> >> I
> >> >> > registered it in the wicket application's "init" method.
> >> >> >
> >> >> > @Override
> >> >> >> public void init()
> >> >> >> {
> >> >> >> super.init();
> >> >> >> getRequestCycleListeners().add(new
> >> PageRequestHandlerTracker());
> >> >> >> }
> >> >> >>
> >> >> >
> >> >> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <
> james@mcruncher.com>
> >> >> wrote:
> >> >> >
> >> >> >> Should I register PageRequestHandlerTracker anywhere?
> >> >> >>
> >> >> >>
> >> >> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <
> james@mcruncher.com
> >> >> >wrote:
> >> >> >>
> >> >> >>> Alright Paul.
> >> >> >>>
> >> >> >>> This is my code:
> >> >> >>>
> >> >> >>> public class HomePage extends WebPage
> >> >> >>>> {
> >> >> >>>> private static Logger logger =
> >> >> >>>> LoggerFactory.getLogger(HomePage.class);
> >> >> >>>> private static final long serialVersionUID = 1L;
> >> >> >>>>
> >> >> >>>> public HomePage(final PageParameters parameters)
> >> >> >>>> {
> >> >> >>>> add(new Label("version",
> >> >> >>>> getApplication().getFrameworkSettings().getVersion()));
> >> >> >>>> try {
> >> >> >>>> IPageRequestHandler lastHandler =
> >> >> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
> >> >> >>>> logger.debug("Last handler: {}", lastHandler);
> >> >> >>>> logger.debug("Requested page",
> lastHandler.getPage());
> >> >> >>>> } catch (Exception ex) {
> >> >> >>>> logger.error("Error", ex);
> >> >> >>>> }
> >> >> >>>> }
> >> >> >>>> }
> >> >> >>>>
> >> >> >>>>
> >> >> >>> This is the log with exception stack trace:
> >> >> >>>
> >> >> >>> [INFO] Started Jetty Server
> >> >> >>>> DEBUG - HomePage - Last handler: null
> >> >> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
> >> >> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page
> >> using
> >> >> >>>> constructor 'public
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
> >> >> >>>> and argument ''. Might be it doesn't exist, may be it is not
> >> visible
> >> >> >>>> (public).
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
> >> >> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
> >> >> >>>> at
> >> >> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
> >> >> >>>> at
> >> >> >>>>
> >> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
> >> >> >>>> at java.lang.Thread.run(Thread.java:662)
> >> >> >>>> Caused by: java.lang.reflect.InvocationTargetException
> >> >> >>>> at
> >> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >> >> >>>> Method)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> >> >> >>>> at
> >> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> >> >> >>>> at
> >> >> >>>>
> >> >>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
> >> >> >>>> ... 41 more
> >> >> >>>> Caused by: java.lang.NullPointerException
> >> >> >>>> at
> >> org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
> >> >> >>>> ... 46 more
> >> >> >>>>
> >> >> >>>>
> >> >> >>> I've attached a quickstart project to recreate the problem.
> >> >> >>>
> >> >> >>> - Unzip it
> >> >> >>> - mvn clean package jetty:run
> >> >> >>> - Point your browser to http://localhost:8080
> >> >> >>> - Watch out the console for the exception.
> >> >> >>>
> >> >> >>>
> >> >> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws>
> wrote:
> >> >> >>>
> >> >> >>>> Might help if you provide a stack trace for the NPE :)
> >> >> >>>>
> >> >> >>>> Have a great day,
> >> >> >>>> Paul Borș
> >> >> >>>>
> >> >> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com>
> >> wrote:
> >> >> >>>>
> >> >> >>>> > Hi,
> >> >> >>>> >
> >> >> >>>> > We recently migrated our application to wicket-1.5.8.
> >> >> >>>> >
> >> >> >>>> > We have an audit aspect based on Spring AOP that shall log the
> >> >> actions
> >> >> >>>> > performed in the current page.
> >> >> >>>> > In wicket 1.4 we use to get that like
> >> >> >>>> > "RequestCycle.get().getResponsePage()".
> >> >> >>>> >
> >> >> >>>> > This has changed and I know that wicket 1.5 doesn't support
> this
> >> >> >>>> anymore.
> >> >> >>>> >
> >> >> >>>> > The suggested method as per the wiki is to "use a custom
> >> >> >>>> > RequestCycleListener<
> >> >> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> >> >> >>>> > ".
> >> >> >>>> >
> >> >> >>>> > Fortunately, as highlighted in the mailing list, there is a
> new
> >> >> class
> >> >> >>>> in
> >> >> >>>> > wicket 1.5.8 named
> >> >> >>>> > PageRequestHandlerTracker<
> >> >> >>>>
> >> >>
> >>
> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
> >> >> >>>> >to
> >> >> >>>> > meet this common requirement.
> >> >> >>>> >
> >> >> >>>> > However, when we use
> >> >> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
> >> >> >>>> > and then attempt to call #getPage(), a null pointer exception
> is
> >> >> >>>> thrown.
> >> >> >>>> >
> >> >> >>>> > Am I doing something wrong here? Please give your suggestions.
> >> >> >>>> >
> >> >> >>>> > --
> >> >> >>>> > Thanks & regards
> >> >> >>>> > James Selvakumar
> >> >> >>>> > mcruncher.com
> >> >> >>>>
> >> >> >>>>
> >> ---------------------------------------------------------------------
> >> >> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> >> >>>> For additional commands, e-mail: users-help@wicket.apache.org
> >> >> >>>>
> >> >> >>>>
> >> >> >>>
> >> >> >>>
> >> >> >>> --
> >> >> >>> Thanks & regards
> >> >> >>> James Selvakumar
> >> >> >>> mcruncher.com
> >> >> >>>
> >> >> >>>
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> Thanks & regards
> >> >> >> James Selvakumar
> >> >> >> mcruncher.com
> >> >> >>
> >> >> >>
> >> >> >
> >> >> >
> >> >> > --
> >> >> > Thanks & regards
> >> >> > James Selvakumar
> >> >> > mcruncher.com
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> Martin Grigorov
> >> >> jWeekend
> >> >> Training, Consulting, Development
> >> >> http://jWeekend.com
> >> >>
> >> >> ---------------------------------------------------------------------
> >> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> >> For additional commands, e-mail: users-help@wicket.apache.org
> >> >>
> >> >>
> >> >
> >> >
> >> > --
> >> > Thanks & regards
> >> > James Selvakumar
> >> > mcruncher.com
> >>
> >>
> >>
> >> --
> >> Martin Grigorov
> >> jWeekend
> >> Training, Consulting, Development
> >> http://jWeekend.com
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> For additional commands, e-mail: users-help@wicket.apache.org
> >>
> >>
> >
> >
> > --
> > Thanks & regards
> > James Selvakumar
> > mcruncher.com
>
>
>
> --
> Martin Grigorov
> jWeekend
> Training, Consulting, Development
> http://jWeekend.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by Martin Grigorov <mg...@apache.org>.
https://git-wip-us.apache.org/repos/asf/wicket/repo?p=wicket.git;a=commitdiff;h=a5a1fe98e3b76110c6827b5744bf83f45ab0aac4
On Wed, Aug 29, 2012 at 9:19 AM, James Eliyezar <ja...@mcruncher.com> wrote:
> I like that deal.. :-)
>
> On Wed, Aug 29, 2012 at 3:09 PM, Martin Grigorov <mg...@apache.org>wrote:
>
>> I'll improve the javadoc. You improve the wiki page ;-)
>>
>> On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <ja...@mcruncher.com>
>> wrote:
>> > Thanks Martin for the info.
>> > A note in PageRequestHandlerTracker's javadoc can be very useful.
>> > And it will be great if this is reflected in the wiki page "Request Cycle
>> > in wicket 1.5<
>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>> > ".
>> >
>> > On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <mgrigorov@apache.org
>> >wrote:
>> >
>> >> Hi,
>> >>
>> >> Yes, you have to register it.
>> >> It is not registered by default because not everyone needs it.
>> >>
>> >> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <ja...@mcruncher.com>
>> >> wrote:
>> >> > Guys,
>> >> >
>> >> > From the javadoc of IRequestCycleListener, I found that we have to
>> >> > explicitly register the implementations.
>> >> > I thought PageRequestHandlerTracker would have been registered by
>> default
>> >> > as that's from wicket.
>> >> > So, when I registered it manually, it worked as expected. This is how
>> I
>> >> > registered it in the wicket application's "init" method.
>> >> >
>> >> > @Override
>> >> >> public void init()
>> >> >> {
>> >> >> super.init();
>> >> >> getRequestCycleListeners().add(new
>> PageRequestHandlerTracker());
>> >> >> }
>> >> >>
>> >> >
>> >> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <ja...@mcruncher.com>
>> >> wrote:
>> >> >
>> >> >> Should I register PageRequestHandlerTracker anywhere?
>> >> >>
>> >> >>
>> >> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <james@mcruncher.com
>> >> >wrote:
>> >> >>
>> >> >>> Alright Paul.
>> >> >>>
>> >> >>> This is my code:
>> >> >>>
>> >> >>> public class HomePage extends WebPage
>> >> >>>> {
>> >> >>>> private static Logger logger =
>> >> >>>> LoggerFactory.getLogger(HomePage.class);
>> >> >>>> private static final long serialVersionUID = 1L;
>> >> >>>>
>> >> >>>> public HomePage(final PageParameters parameters)
>> >> >>>> {
>> >> >>>> add(new Label("version",
>> >> >>>> getApplication().getFrameworkSettings().getVersion()));
>> >> >>>> try {
>> >> >>>> IPageRequestHandler lastHandler =
>> >> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>> >> >>>> logger.debug("Last handler: {}", lastHandler);
>> >> >>>> logger.debug("Requested page", lastHandler.getPage());
>> >> >>>> } catch (Exception ex) {
>> >> >>>> logger.error("Error", ex);
>> >> >>>> }
>> >> >>>> }
>> >> >>>> }
>> >> >>>>
>> >> >>>>
>> >> >>> This is the log with exception stack trace:
>> >> >>>
>> >> >>> [INFO] Started Jetty Server
>> >> >>>> DEBUG - HomePage - Last handler: null
>> >> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>> >> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page
>> using
>> >> >>>> constructor 'public
>> >> >>>>
>> >>
>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>> >> >>>> and argument ''. Might be it doesn't exist, may be it is not
>> visible
>> >> >>>> (public).
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>> >> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>> >> >>>> at
>> >> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>> >> >>>> at
>> >> >>>>
>> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>> >> >>>> at java.lang.Thread.run(Thread.java:662)
>> >> >>>> Caused by: java.lang.reflect.InvocationTargetException
>> >> >>>> at
>> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>> >> >>>> Method)
>> >> >>>> at
>> >> >>>>
>> >>
>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>> >> >>>> at
>> >> >>>>
>> >>
>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>> >> >>>> at
>> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>> >> >>>> at
>> >> >>>>
>> >>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>> >> >>>> ... 41 more
>> >> >>>> Caused by: java.lang.NullPointerException
>> >> >>>> at
>> org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>> >> >>>> ... 46 more
>> >> >>>>
>> >> >>>>
>> >> >>> I've attached a quickstart project to recreate the problem.
>> >> >>>
>> >> >>> - Unzip it
>> >> >>> - mvn clean package jetty:run
>> >> >>> - Point your browser to http://localhost:8080
>> >> >>> - Watch out the console for the exception.
>> >> >>>
>> >> >>>
>> >> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
>> >> >>>
>> >> >>>> Might help if you provide a stack trace for the NPE :)
>> >> >>>>
>> >> >>>> Have a great day,
>> >> >>>> Paul Borș
>> >> >>>>
>> >> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com>
>> wrote:
>> >> >>>>
>> >> >>>> > Hi,
>> >> >>>> >
>> >> >>>> > We recently migrated our application to wicket-1.5.8.
>> >> >>>> >
>> >> >>>> > We have an audit aspect based on Spring AOP that shall log the
>> >> actions
>> >> >>>> > performed in the current page.
>> >> >>>> > In wicket 1.4 we use to get that like
>> >> >>>> > "RequestCycle.get().getResponsePage()".
>> >> >>>> >
>> >> >>>> > This has changed and I know that wicket 1.5 doesn't support this
>> >> >>>> anymore.
>> >> >>>> >
>> >> >>>> > The suggested method as per the wiki is to "use a custom
>> >> >>>> > RequestCycleListener<
>> >> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>> >> >>>> > ".
>> >> >>>> >
>> >> >>>> > Fortunately, as highlighted in the mailing list, there is a new
>> >> class
>> >> >>>> in
>> >> >>>> > wicket 1.5.8 named
>> >> >>>> > PageRequestHandlerTracker<
>> >> >>>>
>> >>
>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>> >> >>>> >to
>> >> >>>> > meet this common requirement.
>> >> >>>> >
>> >> >>>> > However, when we use
>> >> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>> >> >>>> > and then attempt to call #getPage(), a null pointer exception is
>> >> >>>> thrown.
>> >> >>>> >
>> >> >>>> > Am I doing something wrong here? Please give your suggestions.
>> >> >>>> >
>> >> >>>> > --
>> >> >>>> > Thanks & regards
>> >> >>>> > James Selvakumar
>> >> >>>> > mcruncher.com
>> >> >>>>
>> >> >>>>
>> ---------------------------------------------------------------------
>> >> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> >> >>>> For additional commands, e-mail: users-help@wicket.apache.org
>> >> >>>>
>> >> >>>>
>> >> >>>
>> >> >>>
>> >> >>> --
>> >> >>> Thanks & regards
>> >> >>> James Selvakumar
>> >> >>> mcruncher.com
>> >> >>>
>> >> >>>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> Thanks & regards
>> >> >> James Selvakumar
>> >> >> mcruncher.com
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> > --
>> >> > Thanks & regards
>> >> > James Selvakumar
>> >> > mcruncher.com
>> >>
>> >>
>> >>
>> >> --
>> >> Martin Grigorov
>> >> jWeekend
>> >> Training, Consulting, Development
>> >> http://jWeekend.com
>> >>
>> >> ---------------------------------------------------------------------
>> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> >> For additional commands, e-mail: users-help@wicket.apache.org
>> >>
>> >>
>> >
>> >
>> > --
>> > Thanks & regards
>> > James Selvakumar
>> > mcruncher.com
>>
>>
>>
>> --
>> Martin Grigorov
>> jWeekend
>> Training, Consulting, Development
>> http://jWeekend.com
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
I like that deal.. :-)
On Wed, Aug 29, 2012 at 3:09 PM, Martin Grigorov <mg...@apache.org>wrote:
> I'll improve the javadoc. You improve the wiki page ;-)
>
> On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <ja...@mcruncher.com>
> wrote:
> > Thanks Martin for the info.
> > A note in PageRequestHandlerTracker's javadoc can be very useful.
> > And it will be great if this is reflected in the wiki page "Request Cycle
> > in wicket 1.5<
> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> > ".
> >
> > On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <mgrigorov@apache.org
> >wrote:
> >
> >> Hi,
> >>
> >> Yes, you have to register it.
> >> It is not registered by default because not everyone needs it.
> >>
> >> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <ja...@mcruncher.com>
> >> wrote:
> >> > Guys,
> >> >
> >> > From the javadoc of IRequestCycleListener, I found that we have to
> >> > explicitly register the implementations.
> >> > I thought PageRequestHandlerTracker would have been registered by
> default
> >> > as that's from wicket.
> >> > So, when I registered it manually, it worked as expected. This is how
> I
> >> > registered it in the wicket application's "init" method.
> >> >
> >> > @Override
> >> >> public void init()
> >> >> {
> >> >> super.init();
> >> >> getRequestCycleListeners().add(new
> PageRequestHandlerTracker());
> >> >> }
> >> >>
> >> >
> >> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <ja...@mcruncher.com>
> >> wrote:
> >> >
> >> >> Should I register PageRequestHandlerTracker anywhere?
> >> >>
> >> >>
> >> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <james@mcruncher.com
> >> >wrote:
> >> >>
> >> >>> Alright Paul.
> >> >>>
> >> >>> This is my code:
> >> >>>
> >> >>> public class HomePage extends WebPage
> >> >>>> {
> >> >>>> private static Logger logger =
> >> >>>> LoggerFactory.getLogger(HomePage.class);
> >> >>>> private static final long serialVersionUID = 1L;
> >> >>>>
> >> >>>> public HomePage(final PageParameters parameters)
> >> >>>> {
> >> >>>> add(new Label("version",
> >> >>>> getApplication().getFrameworkSettings().getVersion()));
> >> >>>> try {
> >> >>>> IPageRequestHandler lastHandler =
> >> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
> >> >>>> logger.debug("Last handler: {}", lastHandler);
> >> >>>> logger.debug("Requested page", lastHandler.getPage());
> >> >>>> } catch (Exception ex) {
> >> >>>> logger.error("Error", ex);
> >> >>>> }
> >> >>>> }
> >> >>>> }
> >> >>>>
> >> >>>>
> >> >>> This is the log with exception stack trace:
> >> >>>
> >> >>> [INFO] Started Jetty Server
> >> >>>> DEBUG - HomePage - Last handler: null
> >> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
> >> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page
> using
> >> >>>> constructor 'public
> >> >>>>
> >>
> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
> >> >>>> and argument ''. Might be it doesn't exist, may be it is not
> visible
> >> >>>> (public).
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
> >> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
> >> >>>> at
> >> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
> >> >>>> at
> >> >>>>
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
> >> >>>> at
> >> >>>>
> >>
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
> >> >>>> at java.lang.Thread.run(Thread.java:662)
> >> >>>> Caused by: java.lang.reflect.InvocationTargetException
> >> >>>> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >> >>>> Method)
> >> >>>> at
> >> >>>>
> >>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> >> >>>> at
> >> >>>>
> >>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> >> >>>> at
> java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> >> >>>> at
> >> >>>>
> >>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
> >> >>>> ... 41 more
> >> >>>> Caused by: java.lang.NullPointerException
> >> >>>> at
> org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
> >> >>>> ... 46 more
> >> >>>>
> >> >>>>
> >> >>> I've attached a quickstart project to recreate the problem.
> >> >>>
> >> >>> - Unzip it
> >> >>> - mvn clean package jetty:run
> >> >>> - Point your browser to http://localhost:8080
> >> >>> - Watch out the console for the exception.
> >> >>>
> >> >>>
> >> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
> >> >>>
> >> >>>> Might help if you provide a stack trace for the NPE :)
> >> >>>>
> >> >>>> Have a great day,
> >> >>>> Paul Borș
> >> >>>>
> >> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com>
> wrote:
> >> >>>>
> >> >>>> > Hi,
> >> >>>> >
> >> >>>> > We recently migrated our application to wicket-1.5.8.
> >> >>>> >
> >> >>>> > We have an audit aspect based on Spring AOP that shall log the
> >> actions
> >> >>>> > performed in the current page.
> >> >>>> > In wicket 1.4 we use to get that like
> >> >>>> > "RequestCycle.get().getResponsePage()".
> >> >>>> >
> >> >>>> > This has changed and I know that wicket 1.5 doesn't support this
> >> >>>> anymore.
> >> >>>> >
> >> >>>> > The suggested method as per the wiki is to "use a custom
> >> >>>> > RequestCycleListener<
> >> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> >> >>>> > ".
> >> >>>> >
> >> >>>> > Fortunately, as highlighted in the mailing list, there is a new
> >> class
> >> >>>> in
> >> >>>> > wicket 1.5.8 named
> >> >>>> > PageRequestHandlerTracker<
> >> >>>>
> >>
> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
> >> >>>> >to
> >> >>>> > meet this common requirement.
> >> >>>> >
> >> >>>> > However, when we use
> >> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
> >> >>>> > and then attempt to call #getPage(), a null pointer exception is
> >> >>>> thrown.
> >> >>>> >
> >> >>>> > Am I doing something wrong here? Please give your suggestions.
> >> >>>> >
> >> >>>> > --
> >> >>>> > Thanks & regards
> >> >>>> > James Selvakumar
> >> >>>> > mcruncher.com
> >> >>>>
> >> >>>>
> ---------------------------------------------------------------------
> >> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> >>>> For additional commands, e-mail: users-help@wicket.apache.org
> >> >>>>
> >> >>>>
> >> >>>
> >> >>>
> >> >>> --
> >> >>> Thanks & regards
> >> >>> James Selvakumar
> >> >>> mcruncher.com
> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >> --
> >> >> Thanks & regards
> >> >> James Selvakumar
> >> >> mcruncher.com
> >> >>
> >> >>
> >> >
> >> >
> >> > --
> >> > Thanks & regards
> >> > James Selvakumar
> >> > mcruncher.com
> >>
> >>
> >>
> >> --
> >> Martin Grigorov
> >> jWeekend
> >> Training, Consulting, Development
> >> http://jWeekend.com
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> For additional commands, e-mail: users-help@wicket.apache.org
> >>
> >>
> >
> >
> > --
> > Thanks & regards
> > James Selvakumar
> > mcruncher.com
>
>
>
> --
> Martin Grigorov
> jWeekend
> Training, Consulting, Development
> http://jWeekend.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by Martin Grigorov <mg...@apache.org>.
I'll improve the javadoc. You improve the wiki page ;-)
On Wed, Aug 29, 2012 at 9:07 AM, James Eliyezar <ja...@mcruncher.com> wrote:
> Thanks Martin for the info.
> A note in PageRequestHandlerTracker's javadoc can be very useful.
> And it will be great if this is reflected in the wiki page "Request Cycle
> in wicket 1.5<https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> ".
>
> On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <mg...@apache.org>wrote:
>
>> Hi,
>>
>> Yes, you have to register it.
>> It is not registered by default because not everyone needs it.
>>
>> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <ja...@mcruncher.com>
>> wrote:
>> > Guys,
>> >
>> > From the javadoc of IRequestCycleListener, I found that we have to
>> > explicitly register the implementations.
>> > I thought PageRequestHandlerTracker would have been registered by default
>> > as that's from wicket.
>> > So, when I registered it manually, it worked as expected. This is how I
>> > registered it in the wicket application's "init" method.
>> >
>> > @Override
>> >> public void init()
>> >> {
>> >> super.init();
>> >> getRequestCycleListeners().add(new PageRequestHandlerTracker());
>> >> }
>> >>
>> >
>> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <ja...@mcruncher.com>
>> wrote:
>> >
>> >> Should I register PageRequestHandlerTracker anywhere?
>> >>
>> >>
>> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <james@mcruncher.com
>> >wrote:
>> >>
>> >>> Alright Paul.
>> >>>
>> >>> This is my code:
>> >>>
>> >>> public class HomePage extends WebPage
>> >>>> {
>> >>>> private static Logger logger =
>> >>>> LoggerFactory.getLogger(HomePage.class);
>> >>>> private static final long serialVersionUID = 1L;
>> >>>>
>> >>>> public HomePage(final PageParameters parameters)
>> >>>> {
>> >>>> add(new Label("version",
>> >>>> getApplication().getFrameworkSettings().getVersion()));
>> >>>> try {
>> >>>> IPageRequestHandler lastHandler =
>> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>> >>>> logger.debug("Last handler: {}", lastHandler);
>> >>>> logger.debug("Requested page", lastHandler.getPage());
>> >>>> } catch (Exception ex) {
>> >>>> logger.error("Error", ex);
>> >>>> }
>> >>>> }
>> >>>> }
>> >>>>
>> >>>>
>> >>> This is the log with exception stack trace:
>> >>>
>> >>> [INFO] Started Jetty Server
>> >>>> DEBUG - HomePage - Last handler: null
>> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page using
>> >>>> constructor 'public
>> >>>>
>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>> >>>> and argument ''. Might be it doesn't exist, may be it is not visible
>> >>>> (public).
>> >>>> at
>> >>>>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>> >>>> at
>> >>>>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>> >>>> at
>> >>>>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>> >>>> at
>> >>>>
>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>> >>>> at
>> >>>>
>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>> >>>> at
>> >>>>
>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>> >>>> at
>> >>>>
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>> >>>> at
>> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>> >>>> at
>> >>>> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>> >>>> at
>> >>>>
>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>> >>>> at java.lang.Thread.run(Thread.java:662)
>> >>>> Caused by: java.lang.reflect.InvocationTargetException
>> >>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>> >>>> Method)
>> >>>> at
>> >>>>
>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>> >>>> at
>> >>>>
>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>> >>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>> >>>> at
>> >>>>
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>> >>>> ... 41 more
>> >>>> Caused by: java.lang.NullPointerException
>> >>>> at org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>> >>>> ... 46 more
>> >>>>
>> >>>>
>> >>> I've attached a quickstart project to recreate the problem.
>> >>>
>> >>> - Unzip it
>> >>> - mvn clean package jetty:run
>> >>> - Point your browser to http://localhost:8080
>> >>> - Watch out the console for the exception.
>> >>>
>> >>>
>> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
>> >>>
>> >>>> Might help if you provide a stack trace for the NPE :)
>> >>>>
>> >>>> Have a great day,
>> >>>> Paul Borș
>> >>>>
>> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com> wrote:
>> >>>>
>> >>>> > Hi,
>> >>>> >
>> >>>> > We recently migrated our application to wicket-1.5.8.
>> >>>> >
>> >>>> > We have an audit aspect based on Spring AOP that shall log the
>> actions
>> >>>> > performed in the current page.
>> >>>> > In wicket 1.4 we use to get that like
>> >>>> > "RequestCycle.get().getResponsePage()".
>> >>>> >
>> >>>> > This has changed and I know that wicket 1.5 doesn't support this
>> >>>> anymore.
>> >>>> >
>> >>>> > The suggested method as per the wiki is to "use a custom
>> >>>> > RequestCycleListener<
>> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>> >>>> > ".
>> >>>> >
>> >>>> > Fortunately, as highlighted in the mailing list, there is a new
>> class
>> >>>> in
>> >>>> > wicket 1.5.8 named
>> >>>> > PageRequestHandlerTracker<
>> >>>>
>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>> >>>> >to
>> >>>> > meet this common requirement.
>> >>>> >
>> >>>> > However, when we use
>> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>> >>>> > and then attempt to call #getPage(), a null pointer exception is
>> >>>> thrown.
>> >>>> >
>> >>>> > Am I doing something wrong here? Please give your suggestions.
>> >>>> >
>> >>>> > --
>> >>>> > Thanks & regards
>> >>>> > James Selvakumar
>> >>>> > mcruncher.com
>> >>>>
>> >>>> ---------------------------------------------------------------------
>> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> >>>> For additional commands, e-mail: users-help@wicket.apache.org
>> >>>>
>> >>>>
>> >>>
>> >>>
>> >>> --
>> >>> Thanks & regards
>> >>> James Selvakumar
>> >>> mcruncher.com
>> >>>
>> >>>
>> >>
>> >>
>> >> --
>> >> Thanks & regards
>> >> James Selvakumar
>> >> mcruncher.com
>> >>
>> >>
>> >
>> >
>> > --
>> > Thanks & regards
>> > James Selvakumar
>> > mcruncher.com
>>
>>
>>
>> --
>> Martin Grigorov
>> jWeekend
>> Training, Consulting, Development
>> http://jWeekend.com
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
Thanks Martin for the info.
A note in PageRequestHandlerTracker's javadoc can be very useful.
And it will be great if this is reflected in the wiki page "Request Cycle
in wicket 1.5<https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
".
On Wed, Aug 29, 2012 at 3:03 PM, Martin Grigorov <mg...@apache.org>wrote:
> Hi,
>
> Yes, you have to register it.
> It is not registered by default because not everyone needs it.
>
> On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <ja...@mcruncher.com>
> wrote:
> > Guys,
> >
> > From the javadoc of IRequestCycleListener, I found that we have to
> > explicitly register the implementations.
> > I thought PageRequestHandlerTracker would have been registered by default
> > as that's from wicket.
> > So, when I registered it manually, it worked as expected. This is how I
> > registered it in the wicket application's "init" method.
> >
> > @Override
> >> public void init()
> >> {
> >> super.init();
> >> getRequestCycleListeners().add(new PageRequestHandlerTracker());
> >> }
> >>
> >
> > On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <ja...@mcruncher.com>
> wrote:
> >
> >> Should I register PageRequestHandlerTracker anywhere?
> >>
> >>
> >> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <james@mcruncher.com
> >wrote:
> >>
> >>> Alright Paul.
> >>>
> >>> This is my code:
> >>>
> >>> public class HomePage extends WebPage
> >>>> {
> >>>> private static Logger logger =
> >>>> LoggerFactory.getLogger(HomePage.class);
> >>>> private static final long serialVersionUID = 1L;
> >>>>
> >>>> public HomePage(final PageParameters parameters)
> >>>> {
> >>>> add(new Label("version",
> >>>> getApplication().getFrameworkSettings().getVersion()));
> >>>> try {
> >>>> IPageRequestHandler lastHandler =
> >>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
> >>>> logger.debug("Last handler: {}", lastHandler);
> >>>> logger.debug("Requested page", lastHandler.getPage());
> >>>> } catch (Exception ex) {
> >>>> logger.error("Error", ex);
> >>>> }
> >>>> }
> >>>> }
> >>>>
> >>>>
> >>> This is the log with exception stack trace:
> >>>
> >>> [INFO] Started Jetty Server
> >>>> DEBUG - HomePage - Last handler: null
> >>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
> >>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page using
> >>>> constructor 'public
> >>>>
> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
> >>>> and argument ''. Might be it doesn't exist, may be it is not visible
> >>>> (public).
> >>>> at
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
> >>>> at
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
> >>>> at
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
> >>>> at
> >>>>
> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
> >>>> at
> >>>>
> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
> >>>> at
> >>>>
> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
> >>>> at
> >>>>
> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
> >>>> at
> >>>>
> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
> >>>> at
> >>>>
> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
> >>>> at
> >>>>
> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
> >>>> at
> >>>>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
> >>>> at
> >>>>
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> >>>> at
> >>>>
> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
> >>>> at
> >>>>
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
> >>>> at
> >>>>
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
> >>>> at
> >>>>
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
> >>>> at
> >>>>
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
> >>>> at
> >>>>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
> >>>> at
> >>>>
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
> >>>> at
> >>>>
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
> >>>> at
> >>>>
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
> >>>> at
> >>>>
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
> >>>> at
> >>>>
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
> >>>> at
> >>>>
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
> >>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
> >>>> at
> >>>>
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
> >>>> at
> >>>>
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
> >>>> at
> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
> >>>> at
> >>>> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
> >>>> at
> >>>>
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
> >>>> at
> >>>>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
> >>>> at
> >>>>
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
> >>>> at
> >>>>
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
> >>>> at
> >>>>
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
> >>>> at java.lang.Thread.run(Thread.java:662)
> >>>> Caused by: java.lang.reflect.InvocationTargetException
> >>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >>>> Method)
> >>>> at
> >>>>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> >>>> at
> >>>>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> >>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> >>>> at
> >>>>
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
> >>>> ... 41 more
> >>>> Caused by: java.lang.NullPointerException
> >>>> at org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
> >>>> ... 46 more
> >>>>
> >>>>
> >>> I've attached a quickstart project to recreate the problem.
> >>>
> >>> - Unzip it
> >>> - mvn clean package jetty:run
> >>> - Point your browser to http://localhost:8080
> >>> - Watch out the console for the exception.
> >>>
> >>>
> >>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
> >>>
> >>>> Might help if you provide a stack trace for the NPE :)
> >>>>
> >>>> Have a great day,
> >>>> Paul Borș
> >>>>
> >>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com> wrote:
> >>>>
> >>>> > Hi,
> >>>> >
> >>>> > We recently migrated our application to wicket-1.5.8.
> >>>> >
> >>>> > We have an audit aspect based on Spring AOP that shall log the
> actions
> >>>> > performed in the current page.
> >>>> > In wicket 1.4 we use to get that like
> >>>> > "RequestCycle.get().getResponsePage()".
> >>>> >
> >>>> > This has changed and I know that wicket 1.5 doesn't support this
> >>>> anymore.
> >>>> >
> >>>> > The suggested method as per the wiki is to "use a custom
> >>>> > RequestCycleListener<
> >>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> >>>> > ".
> >>>> >
> >>>> > Fortunately, as highlighted in the mailing list, there is a new
> class
> >>>> in
> >>>> > wicket 1.5.8 named
> >>>> > PageRequestHandlerTracker<
> >>>>
> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
> >>>> >to
> >>>> > meet this common requirement.
> >>>> >
> >>>> > However, when we use
> >>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
> >>>> > and then attempt to call #getPage(), a null pointer exception is
> >>>> thrown.
> >>>> >
> >>>> > Am I doing something wrong here? Please give your suggestions.
> >>>> >
> >>>> > --
> >>>> > Thanks & regards
> >>>> > James Selvakumar
> >>>> > mcruncher.com
> >>>>
> >>>> ---------------------------------------------------------------------
> >>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >>>> For additional commands, e-mail: users-help@wicket.apache.org
> >>>>
> >>>>
> >>>
> >>>
> >>> --
> >>> Thanks & regards
> >>> James Selvakumar
> >>> mcruncher.com
> >>>
> >>>
> >>
> >>
> >> --
> >> Thanks & regards
> >> James Selvakumar
> >> mcruncher.com
> >>
> >>
> >
> >
> > --
> > Thanks & regards
> > James Selvakumar
> > mcruncher.com
>
>
>
> --
> Martin Grigorov
> jWeekend
> Training, Consulting, Development
> http://jWeekend.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by Martin Grigorov <mg...@apache.org>.
Hi,
Yes, you have to register it.
It is not registered by default because not everyone needs it.
On Wed, Aug 29, 2012 at 9:01 AM, James Eliyezar <ja...@mcruncher.com> wrote:
> Guys,
>
> From the javadoc of IRequestCycleListener, I found that we have to
> explicitly register the implementations.
> I thought PageRequestHandlerTracker would have been registered by default
> as that's from wicket.
> So, when I registered it manually, it worked as expected. This is how I
> registered it in the wicket application's "init" method.
>
> @Override
>> public void init()
>> {
>> super.init();
>> getRequestCycleListeners().add(new PageRequestHandlerTracker());
>> }
>>
>
> On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <ja...@mcruncher.com> wrote:
>
>> Should I register PageRequestHandlerTracker anywhere?
>>
>>
>> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <ja...@mcruncher.com>wrote:
>>
>>> Alright Paul.
>>>
>>> This is my code:
>>>
>>> public class HomePage extends WebPage
>>>> {
>>>> private static Logger logger =
>>>> LoggerFactory.getLogger(HomePage.class);
>>>> private static final long serialVersionUID = 1L;
>>>>
>>>> public HomePage(final PageParameters parameters)
>>>> {
>>>> add(new Label("version",
>>>> getApplication().getFrameworkSettings().getVersion()));
>>>> try {
>>>> IPageRequestHandler lastHandler =
>>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>>>> logger.debug("Last handler: {}", lastHandler);
>>>> logger.debug("Requested page", lastHandler.getPage());
>>>> } catch (Exception ex) {
>>>> logger.error("Error", ex);
>>>> }
>>>> }
>>>> }
>>>>
>>>>
>>> This is the log with exception stack trace:
>>>
>>> [INFO] Started Jetty Server
>>>> DEBUG - HomePage - Last handler: null
>>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page using
>>>> constructor 'public
>>>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>>>> and argument ''. Might be it doesn't exist, may be it is not visible
>>>> (public).
>>>> at
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>>>> at
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>>>> at
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>>>> at
>>>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>>>> at
>>>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>>>> at
>>>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>>>> at
>>>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>>>> at
>>>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>>>> at
>>>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>>>> at
>>>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>>>> at
>>>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>>>> at
>>>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>>>> at
>>>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>>>> at
>>>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>>>> at
>>>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>>>> at
>>>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>>>> at
>>>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>>>> at
>>>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>>>> at
>>>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>>>> at
>>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>>>> at
>>>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>>>> at
>>>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>>>> at
>>>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>>>> at
>>>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>>>> at
>>>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>>>> at
>>>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>>>> at
>>>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>>>> at
>>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>>>> at
>>>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>>>> at
>>>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>>>> at
>>>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>>>> at
>>>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>>>> at
>>>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>>>> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>>>> at
>>>> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>>>> at
>>>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>>>> at
>>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>>>> at
>>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>>>> at
>>>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>>>> at
>>>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>>>> at java.lang.Thread.run(Thread.java:662)
>>>> Caused by: java.lang.reflect.InvocationTargetException
>>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>>>> Method)
>>>> at
>>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>>>> at
>>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>>>> at
>>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>>>> ... 41 more
>>>> Caused by: java.lang.NullPointerException
>>>> at org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>>>> ... 46 more
>>>>
>>>>
>>> I've attached a quickstart project to recreate the problem.
>>>
>>> - Unzip it
>>> - mvn clean package jetty:run
>>> - Point your browser to http://localhost:8080
>>> - Watch out the console for the exception.
>>>
>>>
>>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
>>>
>>>> Might help if you provide a stack trace for the NPE :)
>>>>
>>>> Have a great day,
>>>> Paul Borș
>>>>
>>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com> wrote:
>>>>
>>>> > Hi,
>>>> >
>>>> > We recently migrated our application to wicket-1.5.8.
>>>> >
>>>> > We have an audit aspect based on Spring AOP that shall log the actions
>>>> > performed in the current page.
>>>> > In wicket 1.4 we use to get that like
>>>> > "RequestCycle.get().getResponsePage()".
>>>> >
>>>> > This has changed and I know that wicket 1.5 doesn't support this
>>>> anymore.
>>>> >
>>>> > The suggested method as per the wiki is to "use a custom
>>>> > RequestCycleListener<
>>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>>>> > ".
>>>> >
>>>> > Fortunately, as highlighted in the mailing list, there is a new class
>>>> in
>>>> > wicket 1.5.8 named
>>>> > PageRequestHandlerTracker<
>>>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>>>> >to
>>>> > meet this common requirement.
>>>> >
>>>> > However, when we use
>>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>>>> > and then attempt to call #getPage(), a null pointer exception is
>>>> thrown.
>>>> >
>>>> > Am I doing something wrong here? Please give your suggestions.
>>>> >
>>>> > --
>>>> > Thanks & regards
>>>> > James Selvakumar
>>>> > mcruncher.com
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>
>>>>
>>>
>>>
>>> --
>>> Thanks & regards
>>> James Selvakumar
>>> mcruncher.com
>>>
>>>
>>
>>
>> --
>> Thanks & regards
>> James Selvakumar
>> mcruncher.com
>>
>>
>
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
Guys,
>From the javadoc of IRequestCycleListener, I found that we have to
explicitly register the implementations.
I thought PageRequestHandlerTracker would have been registered by default
as that's from wicket.
So, when I registered it manually, it worked as expected. This is how I
registered it in the wicket application's "init" method.
@Override
> public void init()
> {
> super.init();
> getRequestCycleListeners().add(new PageRequestHandlerTracker());
> }
>
On Wed, Aug 29, 2012 at 2:41 PM, James Eliyezar <ja...@mcruncher.com> wrote:
> Should I register PageRequestHandlerTracker anywhere?
>
>
> On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <ja...@mcruncher.com>wrote:
>
>> Alright Paul.
>>
>> This is my code:
>>
>> public class HomePage extends WebPage
>>> {
>>> private static Logger logger =
>>> LoggerFactory.getLogger(HomePage.class);
>>> private static final long serialVersionUID = 1L;
>>>
>>> public HomePage(final PageParameters parameters)
>>> {
>>> add(new Label("version",
>>> getApplication().getFrameworkSettings().getVersion()));
>>> try {
>>> IPageRequestHandler lastHandler =
>>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>>> logger.debug("Last handler: {}", lastHandler);
>>> logger.debug("Requested page", lastHandler.getPage());
>>> } catch (Exception ex) {
>>> logger.error("Error", ex);
>>> }
>>> }
>>> }
>>>
>>>
>> This is the log with exception stack trace:
>>
>> [INFO] Started Jetty Server
>>> DEBUG - HomePage - Last handler: null
>>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page using
>>> constructor 'public
>>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>>> and argument ''. Might be it doesn't exist, may be it is not visible
>>> (public).
>>> at
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>>> at
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>>> at
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>>> at
>>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>>> at
>>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>>> at
>>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>>> at
>>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>>> at
>>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>>> at
>>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>>> at
>>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>>> at
>>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>>> at
>>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>>> at
>>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>>> at
>>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>>> at
>>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>>> at
>>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>>> at
>>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>>> at
>>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>>> at
>>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>>> at
>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>>> at
>>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>>> at
>>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>>> at
>>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>>> at
>>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>>> at
>>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>>> at
>>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>>> at
>>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>>> at
>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>>> at
>>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>>> at
>>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>>> at
>>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>>> at
>>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>>> at
>>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>>> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>>> at
>>> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>>> at
>>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>>> at
>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>>> at
>>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>>> at
>>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>>> at
>>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>>> at java.lang.Thread.run(Thread.java:662)
>>> Caused by: java.lang.reflect.InvocationTargetException
>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>>> Method)
>>> at
>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>>> at
>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>>> at
>>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>>> ... 41 more
>>> Caused by: java.lang.NullPointerException
>>> at org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>>> ... 46 more
>>>
>>>
>> I've attached a quickstart project to recreate the problem.
>>
>> - Unzip it
>> - mvn clean package jetty:run
>> - Point your browser to http://localhost:8080
>> - Watch out the console for the exception.
>>
>>
>> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
>>
>>> Might help if you provide a stack trace for the NPE :)
>>>
>>> Have a great day,
>>> Paul Borș
>>>
>>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com> wrote:
>>>
>>> > Hi,
>>> >
>>> > We recently migrated our application to wicket-1.5.8.
>>> >
>>> > We have an audit aspect based on Spring AOP that shall log the actions
>>> > performed in the current page.
>>> > In wicket 1.4 we use to get that like
>>> > "RequestCycle.get().getResponsePage()".
>>> >
>>> > This has changed and I know that wicket 1.5 doesn't support this
>>> anymore.
>>> >
>>> > The suggested method as per the wiki is to "use a custom
>>> > RequestCycleListener<
>>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>>> > ".
>>> >
>>> > Fortunately, as highlighted in the mailing list, there is a new class
>>> in
>>> > wicket 1.5.8 named
>>> > PageRequestHandlerTracker<
>>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>>> >to
>>> > meet this common requirement.
>>> >
>>> > However, when we use
>>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>>> > and then attempt to call #getPage(), a null pointer exception is
>>> thrown.
>>> >
>>> > Am I doing something wrong here? Please give your suggestions.
>>> >
>>> > --
>>> > Thanks & regards
>>> > James Selvakumar
>>> > mcruncher.com
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>
>>>
>>
>>
>> --
>> Thanks & regards
>> James Selvakumar
>> mcruncher.com
>>
>>
>
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
>
>
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
Should I register PageRequestHandlerTracker anywhere?
On Wed, Aug 29, 2012 at 2:40 PM, James Eliyezar <ja...@mcruncher.com> wrote:
> Alright Paul.
>
> This is my code:
>
> public class HomePage extends WebPage
>> {
>> private static Logger logger =
>> LoggerFactory.getLogger(HomePage.class);
>> private static final long serialVersionUID = 1L;
>>
>> public HomePage(final PageParameters parameters)
>> {
>> add(new Label("version",
>> getApplication().getFrameworkSettings().getVersion()));
>> try {
>> IPageRequestHandler lastHandler =
>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
>> logger.debug("Last handler: {}", lastHandler);
>> logger.debug("Requested page", lastHandler.getPage());
>> } catch (Exception ex) {
>> logger.error("Error", ex);
>> }
>> }
>> }
>>
>>
> This is the log with exception stack trace:
>
> [INFO] Started Jetty Server
>> DEBUG - HomePage - Last handler: null
>> ERROR - DefaultExceptionMapper - Unexpected error occurred
>> org.apache.wicket.WicketRuntimeException: Can't instantiate page using
>> constructor 'public
>> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>> and argument ''. Might be it doesn't exist, may be it is not visible
>> (public).
>> at
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
>> at
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
>> at
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
>> at
>> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
>> at
>> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
>> at
>> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
>> at
>> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>> at
>> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
>> at
>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
>> at
>> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
>> at
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>> at
>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>> at
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>> at
>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>> at
>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>> at
>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>> at
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
>> at org.eclipse.jetty.server.Server.handle(Server.java:349)
>> at
>> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
>> at
>> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
>> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
>> at
>> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
>> at
>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
>> at
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
>> at
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
>> at java.lang.Thread.run(Thread.java:662)
>> Caused by: java.lang.reflect.InvocationTargetException
>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>> Method)
>> at
>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>> at
>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>> at
>> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
>> ... 41 more
>> Caused by: java.lang.NullPointerException
>> at org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
>> ... 46 more
>>
>>
> I've attached a quickstart project to recreate the problem.
>
> - Unzip it
> - mvn clean package jetty:run
> - Point your browser to http://localhost:8080
> - Watch out the console for the exception.
>
>
> On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
>
>> Might help if you provide a stack trace for the NPE :)
>>
>> Have a great day,
>> Paul Borș
>>
>> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com> wrote:
>>
>> > Hi,
>> >
>> > We recently migrated our application to wicket-1.5.8.
>> >
>> > We have an audit aspect based on Spring AOP that shall log the actions
>> > performed in the current page.
>> > In wicket 1.4 we use to get that like
>> > "RequestCycle.get().getResponsePage()".
>> >
>> > This has changed and I know that wicket 1.5 doesn't support this
>> anymore.
>> >
>> > The suggested method as per the wiki is to "use a custom
>> > RequestCycleListener<
>> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
>> > ".
>> >
>> > Fortunately, as highlighted in the mailing list, there is a new class in
>> > wicket 1.5.8 named
>> > PageRequestHandlerTracker<
>> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
>> >to
>> > meet this common requirement.
>> >
>> > However, when we use
>> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
>> > and then attempt to call #getPage(), a null pointer exception is thrown.
>> >
>> > Am I doing something wrong here? Please give your suggestions.
>> >
>> > --
>> > Thanks & regards
>> > James Selvakumar
>> > mcruncher.com
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
>
>
--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by James Eliyezar <ja...@mcruncher.com>.
Alright Paul.
This is my code:
public class HomePage extends WebPage
> {
> private static Logger logger = LoggerFactory.getLogger(HomePage.class);
> private static final long serialVersionUID = 1L;
>
> public HomePage(final PageParameters parameters)
> {
> add(new Label("version",
> getApplication().getFrameworkSettings().getVersion()));
> try {
> IPageRequestHandler lastHandler =
> PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
> logger.debug("Last handler: {}", lastHandler);
> logger.debug("Requested page", lastHandler.getPage());
> } catch (Exception ex) {
> logger.error("Error", ex);
> }
> }
> }
>
>
This is the log with exception stack trace:
[INFO] Started Jetty Server
> DEBUG - HomePage - Last handler: null
> ERROR - DefaultExceptionMapper - Unexpected error occurred
> org.apache.wicket.WicketRuntimeException: Can't instantiate page using
> constructor 'public
> org.apache.wicket.quickstart.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
> and argument ''. Might be it doesn't exist, may be it is not visible
> (public).
> at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:193)
> at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:76)
> at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:46)
> at
> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:103)
> at
> org.apache.wicket.request.handler.PageProvider.resolvePageInstance(PageProvider.java:274)
> at
> org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:165)
> at
> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
> at
> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:93)
> at
> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:237)
> at
> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
> at
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
> at
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> at
> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
> at
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
> at
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
> at
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
> at
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
> at
> org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:940)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
> at org.eclipse.jetty.server.Server.handle(Server.java:349)
> at
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
> at
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565)
> at
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:217)
> at
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:46)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:545)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:43)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
> at java.lang.Thread.run(Thread.java:662)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:170)
> ... 41 more
> Caused by: java.lang.NullPointerException
> at org.apache.wicket.quickstart.HomePage.<init>(HomePage.java:22)
> ... 46 more
>
>
I've attached a quickstart project to recreate the problem.
- Unzip it
- mvn clean package jetty:run
- Point your browser to http://localhost:8080
- Watch out the console for the exception.
On Wed, Aug 29, 2012 at 12:53 PM, Paul Borș <pa...@bors.ws> wrote:
> Might help if you provide a stack trace for the NPE :)
>
> Have a great day,
> Paul Borș
>
> On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com> wrote:
>
> > Hi,
> >
> > We recently migrated our application to wicket-1.5.8.
> >
> > We have an audit aspect based on Spring AOP that shall log the actions
> > performed in the current page.
> > In wicket 1.4 we use to get that like
> > "RequestCycle.get().getResponsePage()".
> >
> > This has changed and I know that wicket 1.5 doesn't support this anymore.
> >
> > The suggested method as per the wiki is to "use a custom
> > RequestCycleListener<
> https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> > ".
> >
> > Fortunately, as highlighted in the mailing list, there is a new class in
> > wicket 1.5.8 named
> > PageRequestHandlerTracker<
> http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html
> >to
> > meet this common requirement.
> >
> > However, when we use
> > PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
> > and then attempt to call #getPage(), a null pointer exception is thrown.
> >
> > Am I doing something wrong here? Please give your suggestions.
> >
> > --
> > Thanks & regards
> > James Selvakumar
> > mcruncher.com
>
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--
Thanks & regards
James Selvakumar
mcruncher.com
Re: Unable to get response page from PageRequestHandlerTracker
Posted by Paul Borș <pa...@bors.ws>.
Might help if you provide a stack trace for the NPE :)
Have a great day,
Paul Borș
On Aug 29, 2012, at 0:37, James Eliyezar <ja...@mcruncher.com> wrote:
> Hi,
>
> We recently migrated our application to wicket-1.5.8.
>
> We have an audit aspect based on Spring AOP that shall log the actions
> performed in the current page.
> In wicket 1.4 we use to get that like
> "RequestCycle.get().getResponsePage()".
>
> This has changed and I know that wicket 1.5 doesn't support this anymore.
>
> The suggested method as per the wiki is to "use a custom
> RequestCycleListener<https://cwiki.apache.org/WICKET/requestcycle-in-wicket-15.html>
> ".
>
> Fortunately, as highlighted in the mailing list, there is a new class in
> wicket 1.5.8 named
> PageRequestHandlerTracker<http://apache-wicket.1842946.n4.nabble.com/Interpolate-response-with-IResponseFilter-td4651476.html>to
> meet this common requirement.
>
> However, when we use
> PageRequestHandlerTracker.getLastHandler(RequestCycle.get()),
> and then attempt to call #getPage(), a null pointer exception is thrown.
>
> Am I doing something wrong here? Please give your suggestions.
>
> --
> Thanks & regards
> James Selvakumar
> mcruncher.com
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