Added LeaderElectionScenariosTest class

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / test / java / org / opendaylight / controller / cluster / raft / utils / MessageCollectorActor.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/MessageCollectorActor.java b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/MessageCollectorActor.java
index 3e2e4a05ea21d5826f81e128a5cf92bcabe69763..79c90cf051cc928ac50e563a136c62030809bbc2 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/MessageCollectorActor.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/MessageCollectorActor.java
@@ -13,39 +13,47 @@ import akka.actor.UntypedActor;
 import akka.pattern.Patterns;
 import akka.util.Timeout;
 import com.google.common.collect.Lists;
+import com.google.common.util.concurrent.Uninterruptibles;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
 import scala.concurrent.Await;
 import scala.concurrent.Future;
 import scala.concurrent.duration.Duration;
 import scala.concurrent.duration.FiniteDuration;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
 
 public class MessageCollectorActor extends UntypedActor {
-    private List<Object> messages = new ArrayList<>();
+    private static final String ARE_YOU_READY = "ARE_YOU_READY";
+
+    private final List<Object> messages = new ArrayList<>();
 
     @Override public void onReceive(Object message) throws Exception {
+        if(message.equals(ARE_YOU_READY)) {
+            getSender().tell("yes", getSelf());
+            return;
+        }
+
         if(message instanceof String){
             if("get-all-messages".equals(message)){
-                getSender().tell(messages, getSelf());
+                getSender().tell(new ArrayList<>(messages), getSelf());
             }
-        } else {
+        } else if(message != null) {
             messages.add(message);
         }
     }
 
+    public void clear() {
+        messages.clear();
+    }
+
     public static List<Object> getAllMessages(ActorRef actor) throws Exception {
         FiniteDuration operationDuration = Duration.create(5, TimeUnit.SECONDS);
         Timeout operationTimeout = new Timeout(operationDuration);
         Future<Object> future = Patterns.ask(actor, "get-all-messages", operationTimeout);
 
-        try {
-            return (List<Object>) Await.result(future, operationDuration);
-        } catch (Exception e) {
-            throw e;
-        }
+        return (List<Object>) Await.result(future, operationDuration);
     }
 
     /**
@@ -54,19 +62,23 @@ public class MessageCollectorActor extends UntypedActor {
      * @param clazz
      * @return
      */
-    public static Object getFirstMatching(ActorRef actor, Class clazz) throws Exception {
-        List<Object> allMessages = getAllMessages(actor);
-
-        for(Object message : allMessages){
-            if(message.getClass().equals(clazz)){
-                return message;
+    public static <T> T getFirstMatching(ActorRef actor, Class<T> clazz) throws Exception {
+        for(int i = 0; i < 50; i++) {
+            List<Object> allMessages = getAllMessages(actor);
+
+            for(Object message : allMessages){
+                if(message.getClass().equals(clazz)){
+                    return (T) message;
+                }
             }
+
+            Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
         }
 
         return null;
     }
 
-    public static List<Object> getAllMatching(ActorRef actor, Class clazz) throws Exception {
+    public static List<Object> getAllMatching(ActorRef actor, Class<?> clazz) throws Exception {
         List<Object> allMessages = getAllMessages(actor);
 
         List<Object> output = Lists.newArrayList();
@@ -80,4 +92,17 @@ public class MessageCollectorActor extends UntypedActor {
         return output;
     }
 
+    public static void waitUntilReady(ActorRef actor) throws Exception {
+        long timeout = 500;
+        FiniteDuration duration = Duration.create(timeout, TimeUnit.MILLISECONDS);
+        for(int i = 0; i < 10; i++) {
+            try {
+                Await.ready(Patterns.ask(actor, ARE_YOU_READY, timeout), duration);
+                return;
+            } catch (TimeoutException e) {
+            }
+        }
+
+        throw new TimeoutException("Actor not ready in time.");
+    }
 }