package org.opendaylight.controller.cluster.raft;
+import com.google.common.base.Preconditions;
import com.google.common.base.Stopwatch;
import java.util.concurrent.TimeUnit;
public class FollowerLogInformationImpl implements FollowerLogInformation {
- private final String id;
-
private final Stopwatch stopwatch = Stopwatch.createUnstarted();
private final RaftActorContext context;
private short payloadVersion = -1;
- private FollowerState state = FollowerState.VOTING;
+ // Assume the HELIUM_VERSION version initially for backwards compatibility until we obtain the follower's
+ // actual version via AppendEntriesReply. Although we no longer support the Helium version, a pre-Boron
+ // follower will not have the version field in AppendEntriesReply so it will be set to 0 which is
+ // HELIUM_VERSION.
+ private short raftVersion = RaftVersions.HELIUM_VERSION;
+
+ private final PeerInfo peerInfo;
- public FollowerLogInformationImpl(String id, long matchIndex, RaftActorContext context) {
- this.id = id;
+ public FollowerLogInformationImpl(PeerInfo peerInfo, long matchIndex, RaftActorContext context) {
this.nextIndex = context.getCommitIndex();
this.matchIndex = matchIndex;
this.context = context;
+ this.peerInfo = Preconditions.checkNotNull(peerInfo);
}
@Override
@Override
public String getId() {
- return id;
+ return peerInfo.getId();
}
@Override
@Override
public boolean isFollowerActive() {
- if(state == FollowerState.VOTING_NOT_INITIALIZED) {
+ if(peerInfo.getVotingState() == VotingState.VOTING_NOT_INITIALIZED) {
return false;
}
@Override
public boolean okToReplicate() {
- if(state == FollowerState.VOTING_NOT_INITIALIZED) {
+ if(peerInfo.getVotingState() == VotingState.VOTING_NOT_INITIALIZED) {
return false;
}
}
@Override
- public boolean canParticipateInConsensus() {
- return state == FollowerState.VOTING;
- }
-
- @Override
- public void setFollowerState(FollowerState state) {
- this.state = state;
+ public short getRaftVersion() {
+ return raftVersion;
}
@Override
- public FollowerState getFollowerState() {
- return state;
+ public void setRaftVersion(short raftVersion) {
+ this.raftVersion = raftVersion;
}
@Override
public String toString() {
- return "FollowerLogInformationImpl [id=" + id + ", nextIndex=" + nextIndex + ", matchIndex=" + matchIndex
- + ", lastReplicatedIndex=" + lastReplicatedIndex + ", state=" + state + ", stopwatch="
- + stopwatch.elapsed(TimeUnit.MILLISECONDS) + ", followerTimeoutMillis="
+ return "FollowerLogInformationImpl [id=" + getId() + ", nextIndex=" + nextIndex + ", matchIndex=" + matchIndex
+ + ", lastReplicatedIndex=" + lastReplicatedIndex + ", votingState=" + peerInfo.getVotingState()
+ + ", stopwatch=" + stopwatch.elapsed(TimeUnit.MILLISECONDS) + ", followerTimeoutMillis="
+ context.getConfigParams().getElectionTimeOutInterval().toMillis() + "]";
}
}