* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-
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 extends AbstractRaftRPC {
+public final class RequestVote extends AbstractRaftRPC {
private static final long serialVersionUID = -6967509186297108657L;
// candidate requesting vote
- private String candidateId;
+ private final String candidateId;
// index of candidate’s last log entry (§5.4)
- private long lastLogIndex;
+ private final long lastLogIndex;
// term of candidate’s last log entry (§5.4)
- private long lastLogTerm;
+ private final long lastLogTerm;
- public RequestVote(long term, String candidateId, long lastLogIndex,
- long lastLogTerm) {
+ public RequestVote(final long term, final String candidateId, final long lastLogIndex, final long lastLogTerm) {
super(term);
this.candidateId = candidateId;
this.lastLogIndex = lastLogIndex;
this.lastLogTerm = lastLogTerm;
}
- // added for testing while serialize-messages=on
- public RequestVote() {
- }
-
- @Override
- public long getTerm() {
- return term;
- }
-
public String getCandidateId() {
return candidateId;
}
return lastLogTerm;
}
- public void setCandidateId(String candidateId) {
- this.candidateId = candidateId;
+ @Override
+ public String toString() {
+ return "RequestVote [term=" + getTerm()
+ + ", candidateId=" + candidateId
+ + ", lastLogIndex=" + lastLogIndex
+ + ", lastLogTerm=" + lastLogTerm
+ + "]";
}
- public void setLastLogIndex(long lastLogIndex) {
- this.lastLogIndex = lastLogIndex;
+ @Override
+ Object writeReplace() {
+ return new RV(this);
}
- public void setLastLogTerm(long lastLogTerm) {
- this.lastLogTerm = lastLogTerm;
- }
+ @Deprecated(since = "7.0.0", forRemoval = true)
+ private static class Proxy implements Externalizable {
+ @java.io.Serial
+ private static final long serialVersionUID = 1L;
- @Override
- public String toString() {
- StringBuilder builder = new StringBuilder();
- builder.append("RequestVote [term=").append(term).append(", candidateId=").append(candidateId)
- .append(", lastLogIndex=").append(lastLogIndex).append(", lastLogTerm=").append(lastLogTerm)
- .append("]");
- return builder.toString();
+ 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(final RequestVote requestVote) {
+ this.requestVote = requestVote;
+ }
+
+ @Override
+ public void writeExternal(final ObjectOutput out) throws IOException {
+ out.writeLong(requestVote.getTerm());
+ out.writeObject(requestVote.candidateId);
+ out.writeLong(requestVote.lastLogIndex);
+ out.writeLong(requestVote.lastLogTerm);
+ }
+
+ @Override
+ public void readExternal(final 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);
+ }
+
+ @java.io.Serial
+ private Object readResolve() {
+ return requestVote;
+ }
}
}