package org.opendaylight.controller.cluster.raft.messages;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import org.opendaylight.controller.cluster.raft.RaftVersions;
+
/**
- * Reply for the AppendEntriesRpc message
+ * Reply for the AppendEntries message.
*/
-public class AppendEntriesReply extends AbstractRaftRPC{
+public class AppendEntriesReply extends AbstractRaftRPC {
+ private static final long serialVersionUID = -7487547356392536683L;
// true if follower contained entry matching
// prevLogIndex and prevLogTerm
// responding
private final String followerId;
- public AppendEntriesReply(String followerId, long term, boolean success, long logLastIndex, long logLastTerm) {
+ private final short payloadVersion;
+
+ private final short raftVersion;
+
+ private final boolean forceInstallSnapshot;
+
+ public AppendEntriesReply(String followerId, long term, boolean success, long logLastIndex, long logLastTerm,
+ short payloadVersion) {
+ this(followerId, term, success, logLastIndex, logLastTerm, payloadVersion, false);
+ }
+
+ public AppendEntriesReply(String followerId, long term, boolean success, long logLastIndex, long logLastTerm,
+ short payloadVersion, boolean forceInstallSnapshot) {
+ this(followerId, term, success, logLastIndex, logLastTerm, payloadVersion, forceInstallSnapshot,
+ RaftVersions.CURRENT_VERSION);
+
+ }
+
+ private AppendEntriesReply(String followerId, long term, boolean success, long logLastIndex, long logLastTerm,
+ short payloadVersion, boolean forceInstallSnapshot, short raftVersion) {
super(term);
this.followerId = followerId;
this.success = success;
this.logLastIndex = logLastIndex;
this.logLastTerm = logLastTerm;
- }
-
- public long getTerm() {
- return term;
+ this.payloadVersion = payloadVersion;
+ this.forceInstallSnapshot = forceInstallSnapshot;
+ this.raftVersion = raftVersion;
}
public boolean isSuccess() {
public String getFollowerId() {
return followerId;
}
+
+ public short getPayloadVersion() {
+ return payloadVersion;
+ }
+
+ public short getRaftVersion() {
+ return raftVersion;
+ }
+
+ public boolean isForceInstallSnapshot() {
+ return forceInstallSnapshot;
+ }
+
+ @Override
+ public String toString() {
+ return "AppendEntriesReply [term=" + getTerm() + ", success=" + success + ", followerId=" + followerId
+ + ", logLastIndex=" + logLastIndex + ", logLastTerm=" + logLastTerm + ", forceInstallSnapshot="
+ + forceInstallSnapshot + ", payloadVersion=" + payloadVersion + ", raftVersion=" + raftVersion + "]";
+ }
+
+ private Object writeReplace() {
+ return new Proxy(this);
+ }
+
+ private static class Proxy implements Externalizable {
+ private static final long serialVersionUID = 1L;
+
+ private AppendEntriesReply appendEntriesReply;
+
+ // checkstyle flags the public modifier as redundant which really doesn't make sense since it clearly isn't
+ // redundant. It is explicitly needed for Java serialization to be able to create instances via reflection.
+ @SuppressWarnings("checkstyle:RedundantModifier")
+ public Proxy() {
+ }
+
+ Proxy(AppendEntriesReply appendEntriesReply) {
+ this.appendEntriesReply = appendEntriesReply;
+ }
+
+ @Override
+ public void writeExternal(ObjectOutput out) throws IOException {
+ out.writeShort(appendEntriesReply.raftVersion);
+ out.writeLong(appendEntriesReply.getTerm());
+ out.writeObject(appendEntriesReply.followerId);
+ out.writeBoolean(appendEntriesReply.success);
+ out.writeLong(appendEntriesReply.logLastIndex);
+ out.writeLong(appendEntriesReply.logLastTerm);
+ out.writeShort(appendEntriesReply.payloadVersion);
+ out.writeBoolean(appendEntriesReply.forceInstallSnapshot);
+ }
+
+ @Override
+ public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
+ short raftVersion = in.readShort();
+ long term = in.readLong();
+ String followerId = (String) in.readObject();
+ boolean success = in.readBoolean();
+ long logLastIndex = in.readLong();
+ long logLastTerm = in.readLong();
+ short payloadVersion = in.readShort();
+ boolean forceInstallSnapshot = in.readBoolean();
+
+ appendEntriesReply = new AppendEntriesReply(followerId, term, success, logLastIndex, logLastTerm,
+ payloadVersion, forceInstallSnapshot, raftVersion);
+ }
+
+ private Object readResolve() {
+ return appendEntriesReply;
+ }
+ }
}