You could instead use a OpenSessionInViewFilter (which you can
blatently copy from Spring) that opens a hibernate session for you and
you can use that in both your wicket app and legacy app.
Martijn
On 12/22/06, ChuckDeal <[EMAIL PROTECTED]> wrote:
>
> I have a legacy app that I am replacing with Wicket. It has to be done over
> time, so I can't do a wholesale rewrite of the app. I have Wicket as the
> "main" framework and my legacy, homemade framework will be the secondary.
> The few Wicket/Databinder pages that I have work pretty well. My legacy
> pages are data-oriented as well and I was planning on a partial rewrite of
> the legacy data tier to use Hibernate instead of pure JDBC.
>
> My problem comes in when I try and access the Hibernate Session from my
> legacy data-tier. I call DataStaticService.getHibernateSession();, but I
> get this exception:
>
> [code]
> org.hibernate.HibernateException: No session currently bound to execution
> context
> at
> org.hibernate.context.ManagedSessionContext.currentSession(ManagedSessionContext.java:50)
> at
> org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:542)
> at
> net.databinder.DataStaticService.getHibernateSession(DataStaticService.java:45)
> [/code]
>
> I know on the surface this looks like a Datbinder question, but I think it
> may be deeper than that. I believe I am getting this because the
> WicketFilter (and therefore the RequestCycle processing) isn't happening for
> my legacy pages. So I thought that I could write my own filter that would
> attempt to do the RequestCycle stuff, but I'm afraid it is currently a
> little overwhelming. Before I really dig in, does that seem to be a good
> approach? I am thinking that if I can use Wicket to somehow process the
> requests of my legacy app I can get the benefits of Wicket without having to
> rewrite everything upfront.
>
> When I made my first attempt at my own filter, it literally was a capture of
> the WicketFilter doGet method (with some minor mods.
>
> public void doFilter(ServletRequest servletRequest, ServletResponse
> servletResponse,
> FilterChain chain) throws IOException, ServletException {
> HttpServletRequest httpServletRequest = (HttpServletRequest)
> servletRequest;
> HttpServletResponse httpServletResponse = (HttpServletResponse)
> servletResponse;
>
> String url = httpServletRequest.getRequestURI();
> if (url.contains(".jsp")) {
> log.info("AIMSFilter.doFilter(): " + url);
>
> final WebApplication webApplication = (WebApplication)
> Application.get("aimsWicket");
>
> // Create a new webrequest
> final WebRequest request =
> webApplication.newWebRequest(httpServletRequest);
>
> // First, set the webapplication for this thread
> Application.set(webApplication);
>
> // Get session for request
> final WebSession session = webApplication.getSession(request);
>
> RequestCycle cycle = RequestCycle.get();
> if (cycle == null) {
> // Create a response object and set the output encoding
> according to
> // wicket's application setttings.
> final WebResponse response =
> webApplication.newWebResponse(httpServletResponse);
> response.setAjax(request.isAjax());
>
> response.setCharacterEncoding(webApplication.getRequestCycleSettings().getResponseRequestEncoding());
>
> try {
> cycle = session.newRequestCycle(request, response);
> try {
> // Process request
> cycle.request();
> }
> catch (AbortException e) {
> // noop
> }
> }
> finally {
> // Close response
> response.close();
>
> // Clean up thread local session
> Session.unset();
>
> // Clean up thread local application
> Application.unset();
> }
> }
> }
>
> chain.doFilter(servletRequest, servletResponse);
> }
>
> What ended up happening was the MainPage/getHomePage() class was included in
> the response. I'm not comepletely sure that that description is accurate
> because I don't have a lot of scenarios to test for proof, but that is what
> I see on the screen and that was the pageClass that I saw in
> DefaultResponseStrategy.respond on the requestCycle.getRequestTarget().
>
> Ultimately, I want to be able to do similar processing that takes place for
> Wicket Pages when I request one of my legacy pages. Where should I even
> start?
>
> Thanks!
> Chuck
> --
> View this message in context:
> http://www.nabble.com/Legacy-apps-tf2871064.html#a8024672
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
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