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 88eecfe705b4f39f4c577e340154d28e81671b67..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
@@ -8,22 +8,101 @@
 
 package org.opendaylight.controller.cluster.raft.utils;
 
+import akka.actor.ActorRef;
 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;
 
 
 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);
+
+        return (List<Object>) Await.result(future, operationDuration);
+    }
+
+    /**
+     * Get the first message that matches the specified class
+     * @param actor
+     * @param clazz
+     * @return
+     */
+    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 {
+        List<Object> allMessages = getAllMessages(actor);
+
+        List<Object> output = Lists.newArrayList();
+
+        for(Object message : allMessages){
+            if(message.getClass().equals(clazz)){
+                output.add(message);
+            }
+        }
+
+        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.");
+    }
 }