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package javax.servlet.jsp.jstl.fmt;
import java.util.Locale;
import java.util.ResourceBundle;
/**
* Class representing an I18N localization context.
*
* An I18N localization context has two components: a resource bundle and
* the locale that led to the resource bundle match.
*
*
The resource bundle component is used by <fmt:message> for mapping
* message keys to localized messages, and the locale component is used by the
* <fmt:message>, <fmt:formatNumber>, <fmt:parseNumber>, <fmt:formatDate>,
* and <fmt:parseDate> actions as their formatting or parsing locale, respectively.
*
* @author Jan Luehe
*/
public class LocalizationContext {
// the localization context's resource bundle
final private ResourceBundle bundle;
// the localization context's locale
final private Locale locale;
/**
* Constructs an empty I18N localization context.
*/
public LocalizationContext() {
bundle = null;
locale = null;
}
/**
* Constructs an I18N localization context from the given resource bundle
* and locale.
*
*
The specified locale is the application- or browser-based preferred
* locale that led to the resource bundle match.
*
* @param bundle The localization context's resource bundle
* @param locale The localization context's locale
*/
public LocalizationContext(ResourceBundle bundle, Locale locale) {
this.bundle = bundle;
this.locale = locale;
}
/**
* Constructs an I18N localization context from the given resource bundle.
*
*
The localization context's locale is taken from the given
* resource bundle.
*
* @param bundle The resource bundle
*/
public LocalizationContext(ResourceBundle bundle) {
this.bundle = bundle;
this.locale = bundle.getLocale();
}
/**
* Gets the resource bundle of this I18N localization context.
*
* @return The resource bundle of this I18N localization context, or null
* if this I18N localization context is empty
*/
public ResourceBundle getResourceBundle() {
return bundle;
}
/**
* Gets the locale of this I18N localization context.
*
* @return The locale of this I18N localization context, or null if this
* I18N localization context is empty, or its resource bundle is a
* (locale-less) root resource bundle.
*/
public Locale getLocale() {
return locale;
}
}