BotAdapter updates for locale.

libraries/bot-builder/src/main/java/com/microsoft/bot/builder/BotAdapter.java

@@ -10,6 +10,7 @@
 import com.microsoft.bot.schema.ResourceResponse;
 
 import java.util.List;
+import java.util.Locale;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionException;
 import org.apache.commons.lang3.NotImplementedException;
@@ -196,6 +197,9 @@ protected CompletableFuture<Void> runPipeline(
         // Call any registered Middleware Components looking for ReceiveActivity()
         if (context.getActivity() != null) {
             if (!StringUtils.isEmpty(context.getActivity().getLocale())) {
+
+                Locale.setDefault(Locale.forLanguageTag(context.getActivity().getLocale()));
+
                 context.setLocale(context.getActivity().getLocale());
             }
 

libraries/bot-builder/src/test/java/com/microsoft/bot/builder/BotAdapterTests.java

@@ -47,6 +47,27 @@ public void PassResourceResponsesThrough() {
         );
     }
 
+    @Test
+    public void GetLocaleFromActivity() {
+        Consumer<List<Activity>> validateResponse = (activities) -> {
+            // no need to do anything.
+        };
+        SimpleAdapter a = new SimpleAdapter(validateResponse);
+        TurnContextImpl c = new TurnContextImpl(a, new Activity(ActivityTypes.MESSAGE));
+
+        String activityId = UUID.randomUUID().toString();
+        Activity activity = TestMessage.Message();
+        activity.setId(activityId);
+        activity.setLocale("de-DE");
+        BotCallbackHandler callback = (turnContext) -> {
+            Assert.assertEquals("de-DE", turnContext.getActivity().getLocale());
+            return CompletableFuture.completedFuture(null);
+        };
+
+        a.processRequest(activity, callback).join();
+    }
+
+
     @Test
     public void ContinueConversation_DirectMsgAsync() {
         boolean[] callbackInvoked = new boolean[] { false };