JSF2 internationalization example - jsf-2

Question

Taking as a start point the JSF2 internationalization example of this link:
http://www.mkyong.com/jsf2/jsf-2-internationalization-example/
I want this example to display the language of the combos in the actual language selected.
Could somebody point me how this can be done?
Thanks!

Answer 1

It's just a matter of setting the proper labels in the static variable countries:
static {
countries = new LinkedHashMap<String,Object>();
countries.put("English", Locale.ENGLISH); //label, value
countries.put("Deutsch", Locale.GERMAN);
countries.put("Français", Locale.FRENCH);
// ... fill in with additional languages/locales as needed
}
You can get a bigger list of language names in their original language here: http://www.omniglot.com/language/names.htm
UPDATE: According to OP's comment, he needs the language names translated to every language. For that, one could come up with a solution simply making a map of language maps (that's quite a few maps), like this:
// set a default value for localeCode
private String localeCode = Locale.ENGLISH.toString();
// ...
static {
countries = new LinkedHashMap<Object, <String,Object>>();
englishCountries = new LinkedHashMap<String,Object>();
englishCountries.put("English", Locale.ENGLISH); //label, value
englishCountries.put("German", Locale.GERMAN);
englishCountries.put("French", Locale.FRENCH);
countries.put(Locale.ENGLISH, englishCountries);
germanCountries = new LinkedHashMap<String,Object>();
germanCountries.put("Englisch", Locale.ENGLISH);
germanCountries.put("Deutsch", Locale.GERMAN);
germanCountries.put("Französisch", Locale.FRENCH);
countries.put(Locale.GERMAN, germanCountries);
frenchCountries = new LinkedHashMap<String,Object>();
frenchCountries.put("Anglais", Locale.ENGLISH);
frenchCountries.put("Allemand", Locale.GERMAN);
frenchCountries.put("Français", Locale.FRENCH);
countries.put(Locale.FRENCH, frenchCountries);
// ... fill in with additional languages/locales as needed
}
public Map<Object, <String,Object>> getCountriesInMap() {
return countries;
}
// adapted value change listener from original:
public void countryLocaleCodeChanged(ValueChangeEvent e){
String newLocaleValue = e.getNewValue().toString();
//loop country map to compare the locale code
for (Object key : countries.keySet()) {
if (key.toString().equals(newLocaleValue)) {
FacesContext.getCurrentInstance().getViewRoot()
.setLocale((Locale) key);
}
}
}
and then you would choose the proper map to be used for the selectItems, with something like this:
<h:selectOneMenu value="#{language.localeCode}" onchange="submit()"
valueChangeListener="#{language.countryLocaleCodeChanged}">
<f:selectItems value="#{language.countriesInMap[language.localeCode]}" />
</h:selectOneMenu>
Note: Don't forget to set a default value for language.localeCode, or the dropdown won't show any options
Please note, though, that this is probably NOT a good idea for usability, since a user who chooses a foreign language by mistake may have a hard time to get back to a known language for her (that's why it's a good practice to make the lists have the language names in each own language).