Bug 5450: Query akka cluster state on Follower ElectionTimeout

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / main / java / org / opendaylight / controller / cluster / raft / RaftActorContextImpl.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java
index 5b53a27d9682fe8b78e738a483b9e950d5f885d0..926e9748d477d8c54fcbde9265197e97a1369063 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java
@@ -13,6 +13,7 @@ import akka.actor.ActorRef;
 import akka.actor.ActorSelection;
 import akka.actor.ActorSystem;
 import akka.actor.Props;
+import akka.cluster.Cluster;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import java.util.ArrayList;
@@ -21,6 +22,7 @@ import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 import java.util.function.LongSupplier;
 import org.opendaylight.controller.cluster.DataPersistenceProvider;
@@ -72,6 +74,8 @@ public class RaftActorContextImpl implements RaftActorContext {
 
     private int numVotingPeers = -1;
 
+    private Optional<Cluster> cluster;
+
     public RaftActorContextImpl(ActorRef actor, ActorContext context, String id,
             ElectionTerm termInformation, long commitIndex, long lastApplied, Map<String, String> peerAddresses,
             ConfigParams configParams, DataPersistenceProvider persistenceProvider, Logger logger) {
@@ -124,6 +128,21 @@ public class RaftActorContextImpl implements RaftActorContext {
         return actor;
     }
 
+    @Override
+    public Optional<Cluster> getCluster() {
+        if(cluster == null) {
+            try {
+                cluster = Optional.of(Cluster.get(getActorSystem()));
+            } catch(Exception e) {
+                // An exception means there's no cluster configured. This will only happen in unit tests.
+                LOG.debug("{}: Could not obtain Cluster: {}", getId(), e);
+                cluster = Optional.empty();
+            }
+        }
+
+        return cluster;
+    }
+
     @Override
     public ElectionTerm getTermInformation() {
         return termInformation;