Move null check from getTotalMemory()

[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 66059b5d62c1b756517cb691ab53f938b42006b0..e00ed896ec7700db78ecaced86337759679b5e91 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
@@ -13,9 +13,8 @@ import akka.actor.ActorRef;
 import akka.actor.ActorSelection;
 import akka.actor.ActorSystem;
 import akka.actor.Props;
-
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Supplier;
+import com.google.common.base.Preconditions;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
@@ -23,12 +22,15 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.function.LongSupplier;
 import org.opendaylight.controller.cluster.DataPersistenceProvider;
-import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
 import org.opendaylight.controller.cluster.raft.ServerConfigurationPayload.ServerInfo;
+import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
+import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
 import org.slf4j.Logger;
 
 public class RaftActorContextImpl implements RaftActorContext {
+    private static final LongSupplier JVM_MEMORY_RETRIEVER = () -> Runtime.getRuntime().totalMemory();
 
     private final ActorRef actor;
 
@@ -53,7 +55,7 @@ public class RaftActorContextImpl implements RaftActorContext {
     private boolean dynamicServerConfiguration = false;
 
     @VisibleForTesting
-    private Supplier<Long> totalMemoryRetriever;
+    private LongSupplier totalMemoryRetriever = JVM_MEMORY_RETRIEVER;
 
     // Snapshot manager will need to be created on demand as it needs raft actor context which cannot
     // be passed to it in the constructor
@@ -63,6 +65,10 @@ public class RaftActorContextImpl implements RaftActorContext {
 
     private short payloadVersion;
 
+    private boolean votingMember = true;
+
+    private RaftActorBehavior currentBehavior;
+
     public RaftActorContextImpl(ActorRef actor, ActorContext context, String id,
             ElectionTerm termInformation, long commitIndex, long lastApplied, Map<String, String> peerAddresses,
             ConfigParams configParams, DataPersistenceProvider persistenceProvider, Logger logger) {
@@ -81,6 +87,7 @@ public class RaftActorContextImpl implements RaftActorContext {
         }
     }
 
+    @VisibleForTesting
     public void setPayloadVersion(short payloadVersion) {
         this.payloadVersion = payloadVersion;
     }
@@ -181,6 +188,8 @@ public class RaftActorContextImpl implements RaftActorContext {
                 peerAddress = configParams.getPeerAddressResolver().resolve(peerId);
                 peerInfo.setAddress(peerAddress);
             }
+        } else {
+            peerAddress = configParams.getPeerAddressResolver().resolve(peerId);
         }
 
         return peerAddress;
@@ -188,10 +197,16 @@ public class RaftActorContextImpl implements RaftActorContext {
 
     @Override
     public void updatePeerIds(ServerConfigurationPayload serverConfig){
-
+        votingMember = true;
+        boolean foundSelf = false;
         Set<String> currentPeers = new HashSet<>(this.getPeerIds());
         for(ServerInfo server: serverConfig.getServerConfig()) {
-            if(!getId().equals(server.getId())) {
+            if(getId().equals(server.getId())) {
+                foundSelf = true;
+                if(!server.isVoting()) {
+                    votingMember = false;
+                }
+            } else {
                 VotingState votingState = server.isVoting() ? VotingState.VOTING: VotingState.NON_VOTING;
                 if(!currentPeers.contains(server.getId())) {
                     this.addToPeers(server.getId(), null, votingState);
@@ -205,6 +220,11 @@ public class RaftActorContextImpl implements RaftActorContext {
         for(String peerIdToRemove: currentPeers) {
             this.removePeer(peerIdToRemove);
         }
+
+        if(!foundSelf) {
+            votingMember = false;
+        }
+
         setDynamicServerConfigurationInUse();
     }
 
@@ -217,8 +237,13 @@ public class RaftActorContextImpl implements RaftActorContext {
         peerInfoMap.put(id, new PeerInfo(id, address, votingState));
     }
 
-    @Override public void removePeer(String name) {
-        peerInfoMap.remove(name);
+    @Override
+    public void removePeer(String name) {
+        if(getId().equals(name)) {
+            votingMember = false;
+        } else {
+            peerInfoMap.remove(name);
+        }
     }
 
     @Override public ActorSelection getPeerActorSelection(String peerId) {
@@ -248,12 +273,12 @@ public class RaftActorContextImpl implements RaftActorContext {
 
     @Override
     public long getTotalMemory() {
-        return totalMemoryRetriever != null ? totalMemoryRetriever.get() : Runtime.getRuntime().totalMemory();
+        return totalMemoryRetriever.getAsLong();
     }
 
     @Override
-    public void setTotalMemoryRetriever(Supplier<Long> retriever) {
-        totalMemoryRetriever = retriever;
+    public void setTotalMemoryRetriever(LongSupplier retriever) {
+        totalMemoryRetriever = retriever == null ? JVM_MEMORY_RETRIEVER : retriever;
     }
 
     @Override
@@ -283,7 +308,7 @@ public class RaftActorContextImpl implements RaftActorContext {
     }
 
     @Override
-    public ServerConfigurationPayload getPeerServerInfo() {
+    public ServerConfigurationPayload getPeerServerInfo(boolean includeSelf) {
         if (!isDynamicServerConfigurationInUse()) {
             return null;
         }
@@ -293,7 +318,34 @@ public class RaftActorContextImpl implements RaftActorContext {
             newConfig.add(new ServerInfo(peer.getId(), peer.isVoting()));
         }
 
-        newConfig.add(new ServerInfo(getId(), true));
+        if(includeSelf) {
+            newConfig.add(new ServerInfo(getId(), votingMember));
+        }
+
         return (new ServerConfigurationPayload(newConfig));
     }
+
+    @Override
+    public boolean isVotingMember() {
+        return votingMember;
+    }
+
+    @Override
+    public RaftActorBehavior getCurrentBehavior() {
+        return currentBehavior;
+    }
+
+    void setCurrentBehavior(final RaftActorBehavior behavior) {
+        this.currentBehavior = Preconditions.checkNotNull(behavior);
+    }
+
+    void close() {
+        if (currentBehavior != null) {
+            try {
+                currentBehavior.close();
+            } catch (Exception e) {
+                LOG.debug("{}: Error closing behavior {}", getId(), currentBehavior.state());
+            }
+        }
+    }
 }