[OmniFaces utilities (2.3)] Parsing the given object representing the locale to a Locale object

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[OmniFaces utilities] The parseLocale() method parses the given object representing the locale to a Locale object. If it is null, then return null. Else if it is already an instance of Locale, then just return it. Else if it is in pattern ISO 639 alpha-2/3, optionally followed by "_" and ISO 3166-1 alpha-2 country code, then split the language/country and construct a new Locale with it. Else parse it via Locale#forLanguageTag(String) and return it.

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Method

Usage

We will pass to Utils#parseLocale() a string of type xxx_yy. The xxx part represents the ISO 639 alpha-2/3 code, and the yy represents the ISO 3166-1 alpha-2 country code. For example for Japan we have, jpn_JP.

<h:form>

 <h:outputText value="Country: #{localeBean.locale.country}"/>

 <h:outputText value="Display Country: #{localeBean.locale.displayCountry}"/>

 <h:outputText value="Display Language: #{localeBean.locale.displayLanguage}"/>

 <h:commandButton value="Japan" action="#{localeBean.localeAction('jpn_JP')}"/>

 <h:commandButton value="Italy" action="#{localeBean.localeAction('ita_IT')}"/>

 <h:commandButton value="Lule Sami" action="#{localeBean.localeAction('smj')}"/>

</h:form>

import org.omnifaces.util.Faces;

import org.omnifaces.util.Utils;

import java.util.Locale;

...

@Named

@RequestScoped

public class LocaleBean {

 

 private Locale locale;

 

 @PostConstruct

 public void init(){       

  // init with the current locale

  locale=Faces.getLocale();

 }

 public void localeAction(String code) {

  locale =  Utils.parseLocale(code);               

 }

 public Locale getLocale() {

  return locale;

 }       

}

The output will be:

// initial

Country: US

Display Country: United States

Display Language: English

// after pressing Japan button

Country: JP

Display Country: the Japan

Display Language: Japanese

// after pressing the Italy button

Country: IT

Display Country: Italy

Display Language: Italian

// after pressing the Lule Sami button

Country:

Display Country:

Display Language: Lule Sami

API GH