Merge "Fixed discard-changes for mdsal netconf, mapping code cleanup."

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

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImpl.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImpl.java
index 6aa76508fc2323094a497895cad4d3d7a2bdd3d0..90e128256132437c5f2acd4cb861e0e74a759d44 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImpl.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImpl.java
@@ -8,41 +8,108 @@
 
 package org.opendaylight.controller.cluster.raft;
 
-import java.util.concurrent.atomic.AtomicLong;
+import com.google.common.base.Stopwatch;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicLongFieldUpdater;
 
-public class FollowerLogInformationImpl implements FollowerLogInformation{
+public class FollowerLogInformationImpl implements FollowerLogInformation {
+    private static final AtomicLongFieldUpdater<FollowerLogInformationImpl> NEXT_INDEX_UPDATER = AtomicLongFieldUpdater.newUpdater(FollowerLogInformationImpl.class, "nextIndex");
+    private static final AtomicLongFieldUpdater<FollowerLogInformationImpl> MATCH_INDEX_UPDATER = AtomicLongFieldUpdater.newUpdater(FollowerLogInformationImpl.class, "matchIndex");
 
     private final String id;
 
-    private final AtomicLong nextIndex;
+    private final Stopwatch stopwatch = Stopwatch.createUnstarted();
 
-    private final AtomicLong matchIndex;
+    private final RaftActorContext context;
 
-    public FollowerLogInformationImpl(String id, AtomicLong nextIndex,
-        AtomicLong matchIndex) {
+    private volatile long nextIndex;
+
+    private volatile long matchIndex;
+
+    public FollowerLogInformationImpl(String id, long matchIndex, RaftActorContext context) {
         this.id = id;
-        this.nextIndex = nextIndex;
+        this.nextIndex = context.getCommitIndex();
         this.matchIndex = matchIndex;
+        this.context = context;
     }
 
+    @Override
     public long incrNextIndex(){
-        return nextIndex.incrementAndGet();
+        return NEXT_INDEX_UPDATER.incrementAndGet(this);
     }
 
+    @Override
+    public long decrNextIndex() {
+        return NEXT_INDEX_UPDATER.decrementAndGet(this);
+    }
+
+    @Override
+    public void setNextIndex(long nextIndex) {
+        this.nextIndex = nextIndex;
+    }
+
+    @Override
     public long incrMatchIndex(){
-        return matchIndex.incrementAndGet();
+        return MATCH_INDEX_UPDATER.incrementAndGet(this);
+    }
+
+    @Override
+    public void setMatchIndex(long matchIndex) {
+        this.matchIndex = matchIndex;
     }
 
+    @Override
     public String getId() {
         return id;
     }
 
-    public AtomicLong getNextIndex() {
+    @Override
+    public long getNextIndex() {
         return nextIndex;
     }
 
-    public AtomicLong getMatchIndex() {
+    @Override
+    public long getMatchIndex() {
         return matchIndex;
     }
 
+    @Override
+    public boolean isFollowerActive() {
+        long elapsed = stopwatch.elapsed(TimeUnit.MILLISECONDS);
+        return (stopwatch.isRunning()) &&
+                (elapsed <= context.getConfigParams().getElectionTimeOutInterval().toMillis());
+    }
+
+    @Override
+    public void markFollowerActive() {
+        if (stopwatch.isRunning()) {
+            stopwatch.reset();
+        }
+        stopwatch.start();
+    }
+
+    @Override
+    public void markFollowerInActive() {
+        if (stopwatch.isRunning()) {
+            stopwatch.stop();
+        }
+    }
+
+    @Override
+    public long timeSinceLastActivity() {
+        return stopwatch.elapsed(TimeUnit.MILLISECONDS);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append("FollowerLogInformationImpl [id=").append(id).append(", nextIndex=").append(nextIndex)
+                .append(", matchIndex=").append(matchIndex).append(", stopwatch=")
+                .append(stopwatch.elapsed(TimeUnit.MILLISECONDS))
+                .append(", followerTimeoutMillis=")
+                .append(context.getConfigParams().getElectionTimeOutInterval().toMillis()).append("]");
+        return builder.toString();
+    }
+
+
 }