[SOLVED] Select specific localization of Wicket message in HTML

Select specific localization of Wicket message in HTML

Is it possible to force the language of a Wicket message in HTML?

I have a few wicket pages and generic components that are used both when the user's locale is known and when it is not known. When the locale is not known, I am required to show messages in two official languages (english and german in this example). For now I have made language specific pages for the two languages and a default page for the "unknown" case:

MyComponent.html
MyComponent_en.hmtl
MyComponent_de.html

The "unknown" page (MyComponent.html) contains message-elements for both languages. At the moment, one of the laguages is the default one and for the common components I have had to duplicate the messages in other languages by appending the language code to the message key:

MyComponent.html:

<span lang="en"><wicket:message key="myMessageKey"/></span>
<span lang="de"><wicket:message key="myMessageKey.de"/></span>

wicket_package.properties:

myMessageKey=My hovercraft is full of eels
myMessageKey.de=Mein Luftkissenfahrzeug ist voller Aale

wicket_package_de.properties:

myMessageKey=Mein Luftkissenfahrzeug ist voller Aale

Clearly this duplication of localizations is insanity. Is there a way where I could force the language of the wicket:message in the HTML and save myself from duplicating the localizations? What I am looking for is something like <wicket:message key="myMessageKey" lang="de"/> or anything similar.

One option seems to be making my own WicketMessageResolver but I'd rather not do that work if I can avoid it.

Solution

There is no such functionality in current Wicket (9.8.0).

I'd also be hesitant to implement something like WicketMessageResolver! But it would be quite simple to implement with non-auto component (auto-components are all created from markup - <wicket:xyz>), i.e. with a custom Panel that has two Labels which models use Localizer.get() to get the localized values.