Reduce use of scala.concurrent.duration.Duration
[controller.git] / opendaylight / md-sal / sal-akka-raft / src / test / java / org / opendaylight / controller / cluster / raft / behaviors / AbstractLeaderElectionScenarioTest.java
index 5d445bc6a556dd22c6bc1f1b8137bdf8e66a92c7..8f0cc998030b66b2d19157da6df197812f240a3f 100644 (file)
@@ -14,14 +14,20 @@ import static org.junit.Assert.assertTrue;
 import akka.actor.ActorRef;
 import akka.actor.ActorSystem;
 import akka.actor.Props;
+import akka.actor.Status;
+import akka.dispatch.ControlMessage;
 import akka.dispatch.Dispatchers;
-import akka.testkit.JavaTestKit;
+import akka.dispatch.Mailboxes;
+import akka.pattern.Patterns;
 import akka.testkit.TestActorRef;
+import akka.testkit.javadsl.TestKit;
+import akka.util.Timeout;
 import com.google.common.util.concurrent.Uninterruptibles;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
 import org.junit.After;
 import org.junit.Before;
 import org.opendaylight.controller.cluster.raft.DefaultConfigParamsImpl;
@@ -33,6 +39,7 @@ import org.opendaylight.controller.cluster.raft.messages.AppendEntriesReply;
 import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import scala.concurrent.Await;
 import scala.concurrent.duration.FiniteDuration;
 
 /**
@@ -44,14 +51,14 @@ public class AbstractLeaderElectionScenarioTest {
     static final int HEARTBEAT_INTERVAL = 50;
 
     static class MemberActor extends MessageCollectorActor {
-
-        volatile RaftActorBehavior behavior;
+        private volatile RaftActorBehavior behavior;
         Map<Class<?>, CountDownLatch> messagesReceivedLatches = new ConcurrentHashMap<>();
         Map<Class<?>, Boolean> dropMessagesToBehavior = new ConcurrentHashMap<>();
         CountDownLatch behaviorStateChangeLatch;
 
         public static Props props() {
-            return Props.create(MemberActor.class).withDispatcher(Dispatchers.DefaultDispatcherId());
+            return Props.create(MemberActor.class).withDispatcher(Dispatchers.DefaultDispatcherId())
+                    .withMailbox(Mailboxes.DefaultMailboxId());
         }
 
         @Override
@@ -61,6 +68,25 @@ public class AbstractLeaderElectionScenarioTest {
                 return;
             }
 
+            if (message instanceof SetBehavior) {
+                behavior = ((SetBehavior)message).behavior;
+                ((SetBehavior)message).context.setCurrentBehavior(behavior);
+                return;
+            }
+
+            if (message instanceof GetBehaviorState) {
+                if (behavior != null) {
+                    getSender().tell(behavior.state(), self());
+                } else {
+                    getSender().tell(new Status.Failure(new IllegalStateException(
+                            "RaftActorBehavior is not set in MemberActor")), self());
+                }
+            }
+
+            if (message instanceof SendImmediateHeartBeat) {
+                message = SendHeartBeat.INSTANCE;
+            }
+
             try {
                 if (behavior != null && !dropMessagesToBehavior.containsKey(message.getClass())) {
                     final RaftActorBehavior nextBehavior = behavior.handleMessage(getSender(), message);
@@ -82,6 +108,15 @@ public class AbstractLeaderElectionScenarioTest {
             }
         }
 
+        @Override
+        public void postStop() throws Exception {
+            super.postStop();
+
+            if (behavior != null) {
+                behavior.close();
+            }
+        }
+
         void expectBehaviorStateChange() {
             behaviorStateChangeLatch = new CountDownLatch(1);
         }
@@ -91,22 +126,22 @@ public class AbstractLeaderElectionScenarioTest {
                     Uninterruptibles.awaitUninterruptibly(behaviorStateChangeLatch, 5, TimeUnit.SECONDS));
         }
 
-        void expectMessageClass(Class<?> expClass, int expCount) {
+        void expectMessageClass(final Class<?> expClass, final int expCount) {
             messagesReceivedLatches.put(expClass, new CountDownLatch(expCount));
         }
 
-        void waitForExpectedMessages(Class<?> expClass) {
+        void waitForExpectedMessages(final Class<?> expClass) {
             CountDownLatch latch = messagesReceivedLatches.get(expClass);
             assertNotNull("No messages received for " + expClass, latch);
             assertTrue("Missing messages of type " + expClass,
                     Uninterruptibles.awaitUninterruptibly(latch, 5, TimeUnit.SECONDS));
         }
 
-        void dropMessagesToBehavior(Class<?> msgClass) {
+        void dropMessagesToBehavior(final Class<?> msgClass) {
             dropMessagesToBehavior(msgClass, 1);
         }
 
-        void dropMessagesToBehavior(Class<?> msgClass, int expCount) {
+        void dropMessagesToBehavior(final Class<?> msgClass, final int expCount) {
             expectMessageClass(msgClass, expCount);
             dropMessagesToBehavior.put(msgClass, Boolean.TRUE);
         }
@@ -115,33 +150,56 @@ public class AbstractLeaderElectionScenarioTest {
             dropMessagesToBehavior.clear();
         }
 
-        @Override
         public void clear() {
             behaviorStateChangeLatch = null;
             clearDropMessagesToBehavior();
             messagesReceivedLatches.clear();
-            super.clear();
+            clearMessages(getSelf());
         }
 
-        void forwardCapturedMessageToBehavior(Class<?> msgClass, ActorRef sender) throws Exception {
+        void forwardCapturedMessageToBehavior(final Class<?> msgClass, final ActorRef sender) {
             Object message = getFirstMatching(getSelf(), msgClass);
             assertNotNull("Message of type " + msgClass + " not received", message);
             getSelf().tell(message, sender);
         }
 
-        void forwardCapturedMessagesToBehavior(Class<?> msgClass, ActorRef sender) throws Exception {
+        void forwardCapturedMessagesToBehavior(final Class<?> msgClass, final ActorRef sender) {
             for (Object m: getAllMatching(getSelf(), msgClass)) {
                 getSelf().tell(m, sender);
             }
         }
 
-        <T> T getCapturedMessage(Class<T> msgClass) throws Exception {
+        <T> T getCapturedMessage(final Class<T> msgClass) {
             T message = getFirstMatching(getSelf(), msgClass);
             assertNotNull("Message of type " + msgClass + " not received", message);
             return message;
         }
     }
 
+    static final class SendImmediateHeartBeat implements ControlMessage {
+        static final SendImmediateHeartBeat INSTANCE = new SendImmediateHeartBeat();
+
+        private SendImmediateHeartBeat() {
+        }
+    }
+
+    static final class GetBehaviorState implements ControlMessage {
+        static final GetBehaviorState INSTANCE = new GetBehaviorState();
+
+        private GetBehaviorState() {
+        }
+    }
+
+    static class SetBehavior implements ControlMessage {
+        RaftActorBehavior behavior;
+        MockRaftActorContext context;
+
+        SetBehavior(final RaftActorBehavior behavior, final MockRaftActorContext context) {
+            this.behavior = behavior;
+            this.context = context;
+        }
+    }
+
     protected final Logger testLog = LoggerFactory.getLogger(MockRaftActorContext.class);
     protected final ActorSystem system = ActorSystem.create("test");
     protected final TestActorFactory factory = new TestActorFactory(system);
@@ -167,19 +225,8 @@ public class AbstractLeaderElectionScenarioTest {
     }
 
     @After
-    public void tearDown() throws Exception {
-
-        if (member1Actor.behavior != null) {
-            member1Actor.behavior.close();
-        }
-        if (member2Actor.behavior != null) {
-            member2Actor.behavior.close();
-        }
-        if (member3Actor.behavior != null) {
-            member3Actor.behavior.close();
-        }
-
-        JavaTestKit.shutdownActorSystem(system);
+    public void tearDown() {
+        TestKit.shutdownActorSystem(system);
     }
 
     DefaultConfigParamsImpl newConfigParams() {
@@ -190,20 +237,30 @@ public class AbstractLeaderElectionScenarioTest {
         return configParams;
     }
 
-    MockRaftActorContext newRaftActorContext(String id, ActorRef actor,
-            Map<String, String> peerAddresses) {
+    MockRaftActorContext newRaftActorContext(final String id, final ActorRef actor,
+            final Map<String, String> peerAddresses) {
         MockRaftActorContext context = new MockRaftActorContext(id, system, actor);
         context.setPeerAddresses(peerAddresses);
         context.getTermInformation().updateAndPersist(1, "");
         return context;
     }
 
-    void verifyBehaviorState(String name, MemberActor actor, RaftState expState) {
-        assertEquals(name + " behavior state", expState, actor.behavior.state());
+    @SuppressWarnings("checkstyle:IllegalCatch")
+    void verifyBehaviorState(final String name, final MemberActor actor, final RaftState expState) {
+        RaftState actualState;
+        try {
+            actualState = (RaftState) Await.result(Patterns.ask(actor.self(), GetBehaviorState.INSTANCE,
+                Timeout.apply(5, TimeUnit.SECONDS)), FiniteDuration.create(5, TimeUnit.SECONDS));
+        } catch (RuntimeException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+        assertEquals(name + " behavior state", expState, actualState);
     }
 
-    void initializeLeaderBehavior(MemberActor actor, MockRaftActorContext context, int numActiveFollowers)
-            throws Exception {
+    void initializeLeaderBehavior(final MemberActor actor, final MockRaftActorContext context,
+            final int numActiveFollowers) {
         // Leader sends immediate heartbeats - we don't care about it so ignore it.
         // Sometimes the initial AppendEntries messages go to dead letters, probably b/c the follower actors
         // haven't been fully created/initialized by akka. So we try up to 3 times to create the Leader as
@@ -230,23 +287,23 @@ public class AbstractLeaderElectionScenarioTest {
 
         context.setCurrentBehavior(leader);
 
-        // Delay assignment here so the AppendEntriesReply isn't forwarded to the behavior.
-        actor.behavior = leader;
+        // Delay assignment of the leader behavior so the AppendEntriesReply isn't forwarded to the behavior.
+        actor.self().tell(new SetBehavior(leader, context), ActorRef.noSender());
 
         actor.forwardCapturedMessagesToBehavior(AppendEntriesReply.class, ActorRef.noSender());
         actor.clear();
 
     }
 
-    TestActorRef<MemberActor> newMemberActor(String name) throws Exception {
+    TestActorRef<MemberActor> newMemberActor(final String name) throws TimeoutException, InterruptedException {
         TestActorRef<MemberActor> actor = factory.createTestActor(MemberActor.props()
                 .withDispatcher(Dispatchers.DefaultDispatcherId()), name);
         MessageCollectorActor.waitUntilReady(actor);
         return actor;
     }
 
-    void sendHeartbeat(TestActorRef<MemberActor> leaderActor) {
+    void sendHeartbeat(final TestActorRef<MemberActor> leaderActor) {
         Uninterruptibles.sleepUninterruptibly(HEARTBEAT_INTERVAL, TimeUnit.MILLISECONDS);
-        leaderActor.underlyingActor().behavior.handleMessage(leaderActor, SendHeartBeat.INSTANCE);
+        leaderActor.tell(SendImmediateHeartBeat.INSTANCE, ActorRef.noSender());
     }
 }