Docs for multi-DC features

akka-cluster-tools/src/multi-jvm/scala/akka/cluster/singleton/ClusterSingletonManagerSpec.scala

@@ -228,12 +228,26 @@ class ClusterSingletonManagerSpec extends MultiNodeSpec(ClusterSingletonManagerS
 
   def createSingletonProxy(): ActorRef = {
     //#create-singleton-proxy
-    system.actorOf(
+    val proxy = system.actorOf(
       ClusterSingletonProxy.props(
         singletonManagerPath = "/user/consumer",
         settings = ClusterSingletonProxySettings(system).withRole("worker")),
       name = "consumerProxy")
     //#create-singleton-proxy
+    proxy
+  }
+
+  def createSingletonProxyDc(): ActorRef = {
+    //#create-singleton-proxy-dc
+    val proxyDcB = system.actorOf(
+      ClusterSingletonProxy.props(
+        singletonManagerPath = "/user/consumer",
+        settings = ClusterSingletonProxySettings(system)
+          .withRole("worker")
+          .withDataCenter("B")),
+      name = "consumerProxyDcB")
+    //#create-singleton-proxy-dc
+    proxyDcB
   }
 
   def verifyProxyMsg(oldest: RoleName, proxyNode: RoleName, msg: Int): Unit = {

akka-cluster-tools/src/test/java/akka/cluster/singleton/ClusterSingletonManagerTest.java

@@ -5,6 +5,10 @@
 package akka.cluster.singleton;
 
 import akka.actor.ActorSystem;
+
+import java.util.HashMap;
+import java.util.Map;
+
 import akka.actor.ActorRef;
 import akka.actor.Props;
 
@@ -32,8 +36,17 @@ public class ClusterSingletonManagerTest {
     ClusterSingletonProxySettings proxySettings =
         ClusterSingletonProxySettings.create(system).withRole("worker");
 
-    system.actorOf(ClusterSingletonProxy.props("/user/consumer", proxySettings),
+    ActorRef proxy =
+      system.actorOf(ClusterSingletonProxy.props("/user/consumer", proxySettings),
         "consumerProxy");
     //#create-singleton-proxy
+
+    //#create-singleton-proxy-dc
+    ActorRef proxyDcB =
+      system.actorOf(ClusterSingletonProxy.props("/user/consumer",
+        ClusterSingletonProxySettings.create(system)
+          .withRole("worker")
+          .withDataCenter("B")), "consumerProxyDcB");
+    //#create-singleton-proxy-dc
   }
 }