import akka.japi.Procedure;
import akka.persistence.SaveSnapshotFailure;
import akka.persistence.SaveSnapshotSuccess;
-import org.opendaylight.controller.cluster.DataPersistenceProvider;
import org.opendaylight.controller.cluster.raft.base.messages.ApplySnapshot;
-import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshot;
import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
import org.slf4j.Logger;
class RaftActorSnapshotMessageSupport {
static final String COMMIT_SNAPSHOT = "commit_snapshot";
- private final DataPersistenceProvider persistence;
private final RaftActorContext context;
private final RaftActorBehavior currentBehavior;
private final RaftActorSnapshotCohort cohort;
private final Procedure<Void> createSnapshotProcedure = new Procedure<Void>() {
@Override
- public void apply(Void notUsed) throws Exception {
+ public void apply(Void notUsed) {
cohort.createSnapshot(context.getActor());
}
};
- RaftActorSnapshotMessageSupport(DataPersistenceProvider persistence, RaftActorContext context,
- RaftActorBehavior currentBehavior, RaftActorSnapshotCohort cohort) {
- this.persistence = persistence;
+ private final Procedure<byte[]> applySnapshotProcedure = new Procedure<byte[]>() {
+ @Override
+ public void apply(byte[] state) {
+ cohort.applySnapshot(state);
+ }
+ };
+
+ RaftActorSnapshotMessageSupport(RaftActorContext context, RaftActorBehavior currentBehavior,
+ RaftActorSnapshotCohort cohort) {
this.context = context;
this.currentBehavior = currentBehavior;
this.cohort = cohort;
this.log = context.getLogger();
+
+ context.getSnapshotManager().setCreateSnapshotCallable(createSnapshotProcedure);
+ context.getSnapshotManager().setApplySnapshotProcedure(applySnapshotProcedure);
}
boolean handleSnapshotMessage(Object message) {
if(message instanceof ApplySnapshot ) {
- onApplySnapshot(((ApplySnapshot) message).getSnapshot());
+ onApplySnapshot((ApplySnapshot) message);
return true;
} else if (message instanceof SaveSnapshotSuccess) {
onSaveSnapshotSuccess((SaveSnapshotSuccess) message);
} else if (message instanceof SaveSnapshotFailure) {
onSaveSnapshotFailure((SaveSnapshotFailure) message);
return true;
- } else if (message instanceof CaptureSnapshot) {
- onCaptureSnapshot(message);
- return true;
} else if (message instanceof CaptureSnapshotReply) {
onCaptureSnapshotReply(((CaptureSnapshotReply) message).getSnapshot());
return true;
} else if (message.equals(COMMIT_SNAPSHOT)) {
- context.getSnapshotManager().commit(persistence, -1);
+ context.getSnapshotManager().commit(-1, currentBehavior);
return true;
} else {
return false;
private void onCaptureSnapshotReply(byte[] snapshotBytes) {
log.debug("{}: CaptureSnapshotReply received by actor: snapshot size {}", context.getId(), snapshotBytes.length);
- context.getSnapshotManager().persist(persistence, snapshotBytes, currentBehavior, context.getTotalMemory());
- }
-
- private void onCaptureSnapshot(Object message) {
- log.debug("{}: CaptureSnapshot received by actor: {}", context.getId(), message);
-
- context.getSnapshotManager().create(createSnapshotProcedure);
+ context.getSnapshotManager().persist(snapshotBytes, currentBehavior, context.getTotalMemory());
}
private void onSaveSnapshotFailure(SaveSnapshotFailure saveSnapshotFailure) {
long sequenceNumber = success.metadata().sequenceNr();
- context.getSnapshotManager().commit(persistence, sequenceNumber);
+ context.getSnapshotManager().commit(sequenceNumber, currentBehavior);
}
- private void onApplySnapshot(Snapshot snapshot) {
- if(log.isDebugEnabled()) {
- log.debug("{}: ApplySnapshot called on Follower Actor " +
- "snapshotIndex:{}, snapshotTerm:{}", context.getId(), snapshot.getLastAppliedIndex(),
- snapshot.getLastAppliedTerm());
- }
-
- cohort.applySnapshot(snapshot.getState());
+ private void onApplySnapshot(ApplySnapshot message) {
+ log.info("{}: Applying snapshot on follower with snapshotIndex: {}, snapshotTerm: {}", context.getId(),
+ message.getSnapshot().getLastAppliedIndex(), message.getSnapshot().getLastAppliedTerm());
- //clears the followers log, sets the snapshot index to ensure adjusted-index works
- context.setReplicatedLog(ReplicatedLogImpl.newInstance(snapshot, context, persistence,
- currentBehavior));
- context.setLastApplied(snapshot.getLastAppliedIndex());
+ context.getSnapshotManager().apply(message);
}
}