Bug 5740: Change RequestVote(Reply) to externalizable proxy

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / main / java / org / opendaylight / controller / cluster / raft / messages / RequestVoteReply.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java
index bbb1222effccbc5ee276bfc64dd6aff6adcefed7..af208ec85b70040327aaa96e7d0798a1e19375c6 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java
@@ -8,6 +8,11 @@
 
 package org.opendaylight.controller.cluster.raft.messages;
 
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+
 public final class RequestVoteReply extends AbstractRaftRPC {
     private static final long serialVersionUID = 8427899326488775660L;
 
@@ -27,4 +32,42 @@ public final class RequestVoteReply extends AbstractRaftRPC {
     public String toString() {
         return "RequestVoteReply [term=" + getTerm() + ", voteGranted=" + voteGranted + "]";
     }
+
+    private Object writeReplace() {
+        return new Proxy(this);
+    }
+
+    private static class Proxy implements Externalizable {
+        private static final long serialVersionUID = 1L;
+
+        private RequestVoteReply requestVoteReply;
+
+        // 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(RequestVoteReply requestVoteReply) {
+            this.requestVoteReply = requestVoteReply;
+        }
+
+        @Override
+        public void writeExternal(ObjectOutput out) throws IOException {
+            out.writeLong(requestVoteReply.getTerm());
+            out.writeBoolean(requestVoteReply.voteGranted);
+        }
+
+        @Override
+        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
+            long term = in.readLong();
+            boolean voteGranted = in.readBoolean();
+
+            requestVoteReply = new RequestVoteReply(term, voteGranted);
+        }
+
+        private Object readResolve() {
+            return requestVoteReply;
+        }
+    }
 }