Spring/spring-framework
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

AcceptHeaderLocaleResolver keeps language match among supported locales

Browse Source 
Issue: SPR-16599
This commit is contained in:
Juergen Hoeller
2018-03-16 14:17:50 +01:00
parent 7de2650a70
commit f8588e364a
4 changed files with 44 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
spring-webmvc/src/main/java/org/springframework/web/servlet/i18n/AcceptHeaderLocaleResolver.java
View File

@@ -98,38 +98,36 @@ public class AcceptHeaderLocaleResolver implements LocaleResolver {
return defaultLocale;
}
Locale requestLocale = request.getLocale();
if (isSupportedLocale(requestLocale)) {
List<Locale> supportedLocales = getSupportedLocales();
if (supportedLocales.isEmpty() || supportedLocales.contains(requestLocale)) {
return requestLocale;
}
Locale supportedLocale = findSupportedLocale(request);
Locale supportedLocale = findSupportedLocale(request, supportedLocales);
if (supportedLocale != null) {
return supportedLocale;
}
return (defaultLocale != null ? defaultLocale : requestLocale);
}
private boolean isSupportedLocale(Locale locale) {
List<Locale> supportedLocales = getSupportedLocales();
return (supportedLocales.isEmpty() || supportedLocales.contains(locale));
}
@Nullable
private Locale findSupportedLocale(HttpServletRequest request) {
private Locale findSupportedLocale(HttpServletRequest request, List<Locale> supportedLocales) {
Enumeration<Locale> requestLocales = request.getLocales();
List<Locale> supported = getSupportedLocales();
Locale languageMatch = null;
while (requestLocales.hasMoreElements()) {
Locale locale = requestLocales.nextElement();
if (supported.contains(locale)) {
// Full match: typically language + country
return locale;
if (supportedLocales.contains(locale)) {
if (languageMatch == null || languageMatch.getLanguage().equals(locale.getLanguage())) {
// Full match: language + country, possibly narrowed from earlier language-only match
return locale;
}
}
else if (languageMatch == null) {
// Let's try to find a language-only match as a fallback
for (Locale candidate : supported) {
for (Locale candidate : supportedLocales) {
if (!StringUtils.hasLength(candidate.getCountry()) &&
candidate.getLanguage().equals(locale.getLanguage())) {
languageMatch = candidate;
break;
}
}
}