import org.opendaylight.controller.cluster.raft.base.messages.ApplyJournalEntries;
import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
import org.opendaylight.controller.cluster.raft.base.messages.InitiateCaptureSnapshot;
+import org.opendaylight.controller.cluster.raft.base.messages.LeaderTransitioning;
import org.opendaylight.controller.cluster.raft.base.messages.Replicate;
import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior;
import org.opendaylight.controller.cluster.raft.behaviors.AbstractLeader;
captureSnapshot();
} else if(message instanceof SwitchBehavior){
switchBehavior(((SwitchBehavior) message));
+ } else if(message instanceof LeaderTransitioning) {
+ onLeaderTransitioning();
} else if(!snapshotSupport.handleSnapshotMessage(message, getSender())) {
switchBehavior(reusableSwitchBehaviorSupplier.handleMessage(getSender(), message));
}
}
+ private void onLeaderTransitioning() {
+ LOG.debug("{}: onLeaderTransitioning", persistenceId());
+ Optional<ActorRef> roleChangeNotifier = getRoleChangeNotifier();
+ if(currentBehavior.state() == RaftState.Follower && roleChangeNotifier.isPresent()) {
+ roleChangeNotifier.get().tell(newLeaderStateChanged(getId(), null,
+ currentBehavior.getLeaderPayloadVersion()), getSelf());
+ }
+ }
+
private void switchBehavior(SwitchBehavior message) {
if(!getRaftActorContext().getRaftPolicy().automaticElectionsEnabled()) {
RaftState newState = message.getNewState();
--- /dev/null
+/*
+ * Copyright (c) 2015 Brocade Communications Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.cluster.raft.base.messages;
+
+import java.io.Serializable;
+
+/**
+ * Message sent from a leader to its followers to indicate leadership transfer is starting.
+ *
+ * @author Thomas Pantelis
+ */
+public class LeaderTransitioning implements Serializable {
+ private static final long serialVersionUID = 1L;
+}
import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshot;
import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
import org.opendaylight.controller.cluster.raft.base.messages.DeleteEntries;
+import org.opendaylight.controller.cluster.raft.base.messages.LeaderTransitioning;
import org.opendaylight.controller.cluster.raft.base.messages.SendHeartBeat;
import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior;
import org.opendaylight.controller.cluster.raft.base.messages.UpdateElectionTerm;
TEST_LOG.info("testNonVotingOnRecovery ending");
}
+
+ @Test
+ public void testLeaderTransitioning() throws Exception {
+ TEST_LOG.info("testLeaderTransitioning starting");
+
+ TestActorRef<MessageCollectorActor> notifierActor = factory.createTestActor(
+ Props.create(MessageCollectorActor.class));
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
+
+ String persistenceId = factory.generateActorId("test-actor-");
+
+ TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).roleChangeNotifier(notifierActor).props().withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+ MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
+
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ raftActorRef.tell(new AppendEntries(1L, "leader", 0L, 1L, Collections.<ReplicatedLogEntry>emptyList(),
+ 0L, -1L, (short)1), ActorRef.noSender());
+ LeaderStateChanged leaderStateChange = MessageCollectorActor.expectFirstMatching(
+ notifierActor, LeaderStateChanged.class);
+ assertEquals("getLeaderId", "leader", leaderStateChange.getLeaderId());
+
+ MessageCollectorActor.clearMessages(notifierActor);
+
+ raftActorRef.tell(new LeaderTransitioning(), ActorRef.noSender());
+
+ leaderStateChange = MessageCollectorActor.expectFirstMatching(notifierActor, LeaderStateChanged.class);
+ assertEquals("getMemberId", persistenceId, leaderStateChange.getMemberId());
+ assertEquals("getLeaderId", null, leaderStateChange.getLeaderId());
+
+ TEST_LOG.info("testLeaderTransitioning ending");
+ }
}