Apache
/
commons-lang
mirror of https://github.com/apache/commons-lang.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Better concurrency with the Java 8 API ConcurrentMap#computeIfAbsent().

This commit is contained in:
Gary Gregory 2022-03-20 14:06:23 -04:00
parent cb6676b1bb
commit 89bcc5f80e
1 changed files with 5 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/main/java/org/apache/commons/lang3/LocaleUtils.java
View File

@ -100,22 +100,16 @@ public class LocaleUtils {
if (languageCode == null) {
return Collections.emptyList();
}
List<Locale> countries = cCountriesByLanguage.get(languageCode);
if (countries == null) {
countries = new ArrayList<>();
return cCountriesByLanguage.computeIfAbsent(languageCode, lc -> {
List<Locale> countries = new ArrayList<>();
final List<Locale> locales = availableLocaleList();
for (final Locale locale : locales) {
if (languageCode.equals(locale.getLanguage()) &&
!locale.getCountry().isEmpty() &&
locale.getVariant().isEmpty()) {
if (languageCode.equals(locale.getLanguage()) && !locale.getCountry().isEmpty() && locale.getVariant().isEmpty()) {
countries.add(locale);
}
}
countries = Collections.unmodifiableList(countries);
cCountriesByLanguage.putIfAbsent(languageCode, countries);
countries = cCountriesByLanguage.get(languageCode);
}
return countries;
return Collections.unmodifiableList(countries);
});
}
/**