Internationalization support

[lgpl/argeo-commons.git] / base / runtime / org.argeo.util / src / main / java / org / argeo / util / LocaleUtils.java

diff --git a/base/runtime/org.argeo.util/src/main/java/org/argeo/util/LocaleUtils.java b/base/runtime/org.argeo.util/src/main/java/org/argeo/util/LocaleUtils.java
new file mode 100644 (file)
index 0000000..d23f850
--- /dev/null
+++ b/base/runtime/org.argeo.util/src/main/java/org/argeo/util/LocaleUtils.java
@@ -0,0 +1,27 @@
+package org.argeo.util;
+
+import java.util.Locale;
+
+import org.argeo.ArgeoException;
+
+/** Utilities around internationalization. */
+public class LocaleUtils {
+       /**
+        * The locale of the current thread and its children. Allows to deal with
+        * internationalisation as a cross cutting aspect. Never null.
+        */
+       public final static InheritableThreadLocal<Locale> threadLocale = new InheritableThreadLocal<Locale>() {
+               @Override
+               protected Locale initialValue() {
+                       return Locale.getDefault();
+               }
+
+               @Override
+               public void set(Locale value) {
+                       if (value == null)
+                               throw new ArgeoException("Thread local cannot be null.");
+                       super.set(value);
+               }
+
+       };
+}