Develop with I18N

You must first add the <SupportI18N> tag in the widget.xml, as shown below.
```
<Widget name="Widget name">
    ...
    <SupportI18N supported="true" />
    ...
</Widget>
```
This <SupportI18N> xml tag allows all messages*.properties files located in the widget folder to be loaded by the I18NLoader automatically.
Convert JSP pages using the <i18n:message> tag from the i18n tag library.
```
<%@ taglib prefix="i18n" uri="http://www.exalead.com/jspapi/i18n"%>
```
The <i18n:message> tag is a subset of the Spring <spring:message> tag (see http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/web/servlet/tags/MessageTag.html)
```
<i18n:message code="application.name" text="hola mundo" />
```
If the application.namekey is undefined in all properties files, the text=""attribute is used as backup.
By convention, all metas are prefixed by meta_ and facets by facet_. To get consistency when displaying meta and facets between all widgets, you must set the following:
```
<i18n:message code="meta_${metaName)}" text="${metaName}" />
<i18n:message code="facet_${fn:replace(category.path, ' ', '_')}" text="${category.description}" />
```

I18N can be used server-side like in a custom controller. To achieve this, you need the ServletContext and the HttpServletRequest, for example:

import java.util.Locale;
import org.springframework.context.MessageSource;
import org.springframework.web.context.support.WebApplicationContextUtils;
MessageSource messageSource = (MessageSource) WebApplicationContextUtils.getWebApplicationContext
(this.pageContext.getServletContext()).getBean("messageSource");
  Locale locale = RequestContextUtils.getLocale((HttpServletRequest) this.pageContext.getRequest());
  String str = I18NLoader.getMessage(messageSource, "application.name", "hola mundo", locale);
  System.out.println(str);