Fix incorrect spelling of fileBackedStreamFactory

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

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
index 8aee8c1af88c31da507bede83065d3d457b76428..11fa23748e776c11372b74e8e885117db0f06fd1 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
@@ -26,6 +26,7 @@ import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import javax.annotation.Nullable;
+import org.opendaylight.controller.cluster.messaging.MessageAssembler;
 import org.opendaylight.controller.cluster.raft.RaftActorContext;
 import org.opendaylight.controller.cluster.raft.RaftState;
 import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
@@ -56,6 +57,8 @@ public class Follower extends AbstractRaftActorBehavior {
 
     private final SyncStatusTracker initialSyncStatusTracker;
 
+    private final MessageAssembler appendEntriesMessageAssembler;
+
     private final Stopwatch lastLeaderMessageTimer = Stopwatch.createStarted();
     private SnapshotTracker snapshotTracker = null;
     private String leaderId;
@@ -74,6 +77,10 @@ public class Follower extends AbstractRaftActorBehavior {
         initialSyncStatusTracker = new SyncStatusTracker(context.getActor(), getId(), context.getConfigParams()
             .getSyncIndexThreshold());
 
+        appendEntriesMessageAssembler = MessageAssembler.builder().logContext(logName())
+                .fileBackedStreamFactory(context.getFileBackedOutputStreamFactory())
+                .assembledMessageCallback((message, sender) -> handleMessage(sender, message)).build();
+
         if (context.getPeerIds().isEmpty() && getLeaderId() == null) {
             actor().tell(TimeoutNow.INSTANCE, actor());
         } else {
@@ -126,7 +133,7 @@ public class Follower extends AbstractRaftActorBehavior {
     @Override
     protected RaftActorBehavior handleAppendEntries(final ActorRef sender, final AppendEntries appendEntries) {
 
-        int numLogEntries = appendEntries.getEntries() != null ? appendEntries.getEntries().size() : 0;
+        int numLogEntries = appendEntries.getEntries().size();
         if (log.isTraceEnabled()) {
             log.trace("{}: handleAppendEntries: {}", logName(), appendEntries);
         } else if (log.isDebugEnabled() && numLogEntries > 0) {
@@ -174,10 +181,8 @@ public class Follower extends AbstractRaftActorBehavior {
             return this;
         }
 
-        if (appendEntries.getEntries() != null && appendEntries.getEntries().size() > 0) {
-
-            log.debug("{}: Number of entries to be appended = {}", logName(),
-                        appendEntries.getEntries().size());
+        if (numLogEntries > 0) {
+            log.debug("{}: Number of entries to be appended = {}", logName(), numLogEntries);
 
             // 3. If an existing entry conflicts with a new one (same index
             // but different terms), delete the existing entry and all that
@@ -186,7 +191,7 @@ public class Follower extends AbstractRaftActorBehavior {
             if (context.getReplicatedLog().size() > 0) {
 
                 // Find the entry up until the one that is not in the follower's log
-                for (int i = 0;i < appendEntries.getEntries().size(); i++, addEntriesFrom++) {
+                for (int i = 0;i < numLogEntries; i++, addEntriesFrom++) {
                     ReplicatedLogEntry matchEntry = appendEntries.getEntries().get(i);
 
                     if (!isLogEntryPresent(matchEntry.getIndex())) {
@@ -246,15 +251,15 @@ public class Follower extends AbstractRaftActorBehavior {
             // purged from the persisted log as well.
             final AtomicBoolean shouldCaptureSnapshot = new AtomicBoolean(false);
             final Procedure<ReplicatedLogEntry> appendAndPersistCallback = logEntry -> {
-                final ReplicatedLogEntry lastEntryToAppend = appendEntries.getEntries().get(
-                        appendEntries.getEntries().size() - 1);
+                final List<ReplicatedLogEntry> entries = appendEntries.getEntries();
+                final ReplicatedLogEntry lastEntryToAppend = entries.get(entries.size() - 1);
                 if (shouldCaptureSnapshot.get() && logEntry == lastEntryToAppend) {
                     context.getSnapshotManager().capture(context.getReplicatedLog().last(), getReplicatedToAllIndex());
                 }
             };
 
             // 4. Append any new entries not already in the log
-            for (int i = addEntriesFrom; i < appendEntries.getEntries().size(); i++) {
+            for (int i = addEntriesFrom; i < numLogEntries; i++) {
                 ReplicatedLogEntry entry = appendEntries.getEntries().get(i);
 
                 log.debug("{}: Append entry to log {}", logName(), entry.getData());
@@ -317,6 +322,8 @@ public class Follower extends AbstractRaftActorBehavior {
             super.performSnapshotWithoutCapture(appendEntries.getReplicatedToAllIndex());
         }
 
+        appendEntriesMessageAssembler.checkExpiredAssembledMessageState();
+
         return this;
     }
 
@@ -370,7 +377,7 @@ public class Follower extends AbstractRaftActorBehavior {
             }
 
             final List<ReplicatedLogEntry> entries = appendEntries.getEntries();
-            if (entries != null && entries.size() > 0 && !isLogEntryPresent(entries.get(0).getIndex() - 1)) {
+            if (entries.size() > 0 && !isLogEntryPresent(entries.get(0).getIndex() - 1)) {
                 log.info("{}: Cannot append entries because the calculated previousIndex {} was not found in the "
                         + "in-memory journal", logName(), entries.get(0).getIndex() - 1);
                 return true;
@@ -398,6 +405,10 @@ public class Follower extends AbstractRaftActorBehavior {
             return handleElectionTimeout(message);
         }
 
+        if (appendEntriesMessageAssembler.handleMessage(message, actor())) {
+            return this;
+        }
+
         if (!(message instanceof RaftRPC)) {
             // The rest of the processing requires the message to be a RaftRPC
             return null;
@@ -598,6 +609,7 @@ public class Follower extends AbstractRaftActorBehavior {
     public void close() {
         closeSnapshotTracker();
         stopElection();
+        appendEntriesMessageAssembler.close();
     }
 
     @VisibleForTesting