Dan,
I'm not talking about my application. I'm talking about unittests.
I've followed the Guice recommended way to integrate with servlets
using the GuiceFilter.
Now I'm trying to make the Wicket unittests work and I need the
injector to be available in WicketTester.
Daniel
On Thu, Oct 11, 2012 at 6:10 PM, Dan Retzlaff <dretzl...@gmail.com> wrote:
> For what it's worth, we instantiate our applications through Guice. Having
> your application "go get" its Injector kind of violates the DI concept.
>
> filter("/*").through(WicketFilter.class);
> bind(WebApplication.class).to(CustomWebApplication.class);
> bind(WicketFilter.class).to(CustomWicketFilter.class);
>
> @Singleton
> private static class CustomFilter extends WicketFilter {
> @Inject private Provider<WebApplication> webApplicationProvider;
> @Override
> protected IWebApplicationFactory getApplicationFactory() {
> return new IWebApplicationFactory() {
> @Override
> public WebApplication createApplication(WicketFilter filter) {
> return webApplicationProvider.get();
> }
> @Override
> public void destroy(WicketFilter filter) {
> }
> };
> }
> }
>
> On Thu, Oct 11, 2012 at 11:49 PM, Daniel Watrous
> <daniel.watr...@gmail.com>wrote:
>
>> Dan,
>>
>> I think you're right. Since in the WicketApplication init() function I
>> attempt to get the bootStrapInjector like this:
>> Injector bootStrapInjector = (Injector)
>> this.getServletContext().getAttribute(Injector.class.getName());
>>
>> I just can't figure out how to get the injector into the
>> ServletContext before init() is run in my WicketApplication.
>>
>> Daniel
>>
>> On Wed, Oct 10, 2012 at 6:10 PM, Dan Retzlaff <dretzl...@gmail.com> wrote:
>> > Daniel,
>> >
>> > What you're doing should work, but I think you're giving
>> > your GuiceComponentInjector a null Injector. Unit tests don't go through
>> > web.xml to set up its context listeners, so
>> > your GuiceServletContextListener never has a chance to construct and
>> > register an Injector with the ServletContext.
>> >
>> > Dan
>> >
>> > On Wed, Oct 10, 2012 at 5:30 PM, Daniel Watrous <
>> daniel.watr...@gmail.com>wrote:
>> >
>> >> Hi,
>> >>
>> >> I've integrated Guice into Wicket successfully, but I'm struggling
>> >> with the unittests. I'm not sure how to get the injector into my
>> >> HomePage class. Here's my setup.
>> >>
>> >> I'm using GuiceFilter with a GuiceServletContextListener. That creates
>> >> the injector and a ServletModule which defines the WicketApplication.
>> >> I followed:
>> >> http://code.google.com/p/google-guice/wiki/ServletModule
>> >>
>> >> Here's some of MyGuiceServletConfig extends GuiceServletContextListener
>> >>
>> >> @Override
>> >> protected Injector getInjector() {
>> >> return Guice.createInjector(createServletModule(), new
>> >> MongoHoneybadgerModule());
>> >> }
>> >>
>> >> private ServletModule createServletModule() {
>> >> return new ServletModule() {
>> >> ...
>> >>
>> >> In my WicketApplication extends WebApplication I have this init() method
>> >>
>> >> @Override
>> >> public void init()
>> >> {
>> >> super.init();
>> >> Injector bootStrapInjector = (Injector)
>> >> this.getServletContext().getAttribute(Injector.class.getName());
>> >> getComponentInstantiationListeners().add(new
>> >> GuiceComponentInjector(this, bootStrapInjector));
>> >> }
>> >>
>> >> Now, in my HomePage.java class I have
>> >>
>> >> public class HomePage extends WebPage {
>> >> private static final long serialVersionUID = 1L;
>> >> @Inject private Injector injector;
>> >>
>> >> public HomePage(final PageParameters parameters) {
>> >> super(parameters);
>> >> SomeType myobj = injector.getInstance(SomeType.class);
>> >>
>> >> add(new Label("version", myobj.getValue()));
>> >> }
>> >> }
>> >>
>> >> This all runs great inside a web container as a servlet.
>> >>
>> >> The PROBLEM: I'm getting a NullPointerException on the line where I
>> >> reference the injector:
>> >> SomeType myobj = injector.getInstance(SomeType.class);
>> >>
>> >> My test class is what was generated by the wicket quickstart. I'm not
>> >> sure how to make an injector available in setUp.
>> >>
>> >> @Before
>> >> public void setUp() {
>> >> tester = new WicketTester(new WicketApplication());
>> >> }
>> >>
>> >> Any ideas?
>> >>
>> >> Thanks,
>> >> Daniel
>> >>
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>> >>
>> >>
>>
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