Adapt to Java 11

[lgpl/argeo-commons.git] / org.argeo.cms / src / org / argeo / cms / LocaleUtils.java

diff --git a/org.argeo.cms/src/org/argeo/cms/LocaleUtils.java b/org.argeo.cms/src/org/argeo/cms/LocaleUtils.java
new file mode 100644 (file)
index 0000000..c6c932b
--- /dev/null
+++ b/org.argeo.cms/src/org/argeo/cms/LocaleUtils.java
@@ -0,0 +1,70 @@
+package org.argeo.cms;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+import java.util.ResourceBundle;
+
+import org.argeo.cms.auth.CurrentUser;
+
+/** Utilities simplifying the development of localization enums. */
+public class LocaleUtils {
+       public static Object local(Enum<?> en) {
+               return local(en, getCurrentLocale(), "/OSGI-INF/l10n/bundle");
+       }
+
+       public static Object local(Enum<?> en, Locale locale) {
+               return local(en, locale, "/OSGI-INF/l10n/bundle");
+       }
+
+       public static Object local(Enum<?> en, Locale locale, String resource) {
+               return local(en, locale, resource, en.getClass().getClassLoader());
+       }
+
+       public static Object local(Enum<?> en, Locale locale, String resource, ClassLoader classLoader) {
+               ResourceBundle rb = ResourceBundle.getBundle(resource, locale, classLoader);
+               return rb.getString(en.name());
+       }
+
+       public static String lead(String raw, Locale locale) {
+               return raw.substring(0, 1).toUpperCase(locale) + raw.substring(1);
+       }
+
+       public static String lead(Localized localized) {
+               return lead(localized, getCurrentLocale());
+       }
+
+       public static String lead(Localized localized, Locale locale) {
+               return lead(localized.local(locale).toString(), locale);
+       }
+
+       static Locale getCurrentLocale() {
+               return CurrentUser.locale();
+               // return UiContext.getLocale();
+               // FIXME look into Subject or settings
+               // return Locale.getDefault();
+       }
+
+       /** Returns null if argument is null. */
+       public static List<Locale> asLocaleList(Object locales) {
+               if (locales == null)
+                       return null;
+               ArrayList<Locale> availableLocales = new ArrayList<Locale>();
+               String[] codes = locales.toString().split(",");
+               for (int i = 0; i < codes.length; i++) {
+                       String code = codes[i];
+                       // variant not supported
+                       int indexUnd = code.indexOf("_");
+                       Locale locale;
+                       if (indexUnd > 0) {
+                               String language = code.substring(0, indexUnd);
+                               String country = code.substring(indexUnd + 1);
+                               locale = new Locale(language, country);
+                       } else {
+                               locale = new Locale(code);
+                       }
+                       availableLocales.add(locale);
+               }
+               return availableLocales;
+       }
+}