I'm using Guice-Servlet, and I have a Localizer object that is request
scoped: this Localizer is built using the locale from the request.
But I also need a default localizer at some places *where I'm not in a
request*. This default Localizer would be a singleton created using the
default Locale of the application.
I currently have a solution, but it involves catching an exception
(ProvisionException) to know if the current scope is "request". I'd like to
know if there is better way to determine the current scope, for the
provider to return the correct Localizer?
My current code :
---------------------------------------------------
protected void bindRequestScopedLocalizer()
{
bind(Key.get(ILocalizer.class,
RequestScopedLocalizer.class)).to(MyLocalizer.class).in(ServletScopes.REQUEST);
}
@Provides
@Singleton
@DefaultLocalizer
public ILocalizer providesDefaultLocalizer()
{
Locale locale = Locale.getDefault();
TimeZone timeZone = TimeZone.getTimeZone("UTC");
return new MyLocalizer(locale, timeZone);
}
@Provides
protected ILocalizer providesLocalizer(Provider<HttpServletRequest>
requestProvider,
@RequestScopedLocalizer
Provider<ILocalizer> requestScopedLocalizerProvider,
@DefaultLocalizer ILocalizer
defaultLocalizer)
{
try
{
@SuppressWarnings("unused")
HttpServletRequest request = requestProvider.get();
}
// If we're not in a Request scope, we use the default Localizer.
catch(ProvisionException ex)
{
return defaultLocalizer;
}
return requestScopedLocalizerProvider.get();
}
---------------------------------------------------
Thanks in advance!
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