package org.opendaylight.controller.cluster.raft.messages;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+
/**
* Invoked by candidates to gather votes (§5.2).
*/
-public class RequestVote {
-
- // candidate’s term
- private final long term;
+public class RequestVote extends AbstractRaftRPC {
+ private static final long serialVersionUID = -6967509186297108657L;
// candidate requesting vote
private final String candidateId;
// term of candidate’s last log entry (§5.4)
private final long lastLogTerm;
- public RequestVote(long term, String candidateId, long lastLogIndex,
- long lastLogTerm) {
- this.term = term;
+ public RequestVote(long term, String candidateId, long lastLogIndex, long lastLogTerm) {
+ super(term);
this.candidateId = candidateId;
this.lastLogIndex = lastLogIndex;
this.lastLogTerm = lastLogTerm;
}
- public long getTerm() {
- return term;
- }
-
public String getCandidateId() {
return candidateId;
}
public long getLastLogTerm() {
return lastLogTerm;
}
+
+ @Override
+ public String toString() {
+ StringBuilder builder = new StringBuilder();
+ builder.append("RequestVote [term=").append(getTerm()).append(", candidateId=").append(candidateId)
+ .append(", lastLogIndex=").append(lastLogIndex).append(", lastLogTerm=").append(lastLogTerm)
+ .append("]");
+ return builder.toString();
+ }
+
+ private Object writeReplace() {
+ return new Proxy(this);
+ }
+
+ private static class Proxy implements Externalizable {
+ private static final long serialVersionUID = 1L;
+
+ private RequestVote requestVote;
+
+ // 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(RequestVote requestVote) {
+ this.requestVote = requestVote;
+ }
+
+ @Override
+ public void writeExternal(ObjectOutput out) throws IOException {
+ out.writeLong(requestVote.getTerm());
+ out.writeObject(requestVote.candidateId);
+ out.writeLong(requestVote.lastLogIndex);
+ out.writeLong(requestVote.lastLogTerm);
+ }
+
+ @Override
+ public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
+ long term = in.readLong();
+ String candidateId = (String) in.readObject();
+ long lastLogIndex = in.readLong();
+ long lastLogTerm = in.readLong();
+
+ requestVote = new RequestVote(term, candidateId, lastLogIndex, lastLogTerm);
+ }
+
+ private Object readResolve() {
+ return requestVote;
+ }
+ }
}