even though it is session specific it still sets application threadlocal.
-igor
2009/8/30 Uwe Schäfer <u...@thomas-daily.de>:
>> Igor Vaynberg schrieb:
>
>>> map WicketSessionFilter in front of those servlets, you will get both
>>> Session.get() and Session.get().getApplication(), and
>>> Application.get()
>
> actually, (as the name implies), this is quite session centric. my current
> use case is web services where i don´t have a session.
>
> subclassing WicketFilter is not too easy as well, because it does not reveal
> the application reference (private, no getter).
>
> this makes me do nasty reflection tricks to get it, which - while it works -
> feels even much more dirty than using the singleton approach to get an
> application reference.
>
> any idea, how this could be done with a cleaner approach?
> or would
> WicketFilter: protected WebApplication getApplication()
> be an alternative?
>
> cu uwe
>
> ------- current nasty impl:
>
> �...@override
> public void doFilter(final ServletRequest request, final ServletResponse
> response, final FilterChain chain)
> throws IOException, ServletException {
> super.doFilter(request, response, new ModifiedChain(chain,
> getApplication()));
> }
>
> private Application getApplication() {
> // very very nasty
> return (Application) getFieldValue(this, "webApplication");
> }
>
> public static Object getFieldValue(final Object obj, final String string)
> {
> // did i say nasty?
> try {
> final Field declaredField =
> obj.getClass().getSuperclass().getDeclaredField(string);
> declaredField.setAccessible(true);
> return declaredField.get(obj);
> }
> catch (final Throwable e) {
> throw new RuntimeException(e);
> }
> }
> }
>
> class ModifiedChain implements FilterChain
> {
> private FilterChain orgChain;
> private final Application application;
>
> public ModifiedChain(final FilterChain chain, final Application
> application) {
> this.orgChain = chain;
> this.application = application;
> }
>
> public void doFilter(final ServletRequest request, final ServletResponse
> response) throws IOException,
> ServletException {
> Application.set(this.application);
> try {
> this.orgChain.doFilter(request, response);
> }
> finally {
> Application.unset();
> }
> }
>
> }
>
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