+
+ public <T extends Object> Object toSerializable(){
+ AppendEntriesMessages.AppendEntries.Builder to = AppendEntriesMessages.AppendEntries.newBuilder();
+ to.setTerm(this.getTerm())
+ .setLeaderId(this.getLeaderId())
+ .setPrevLogTerm(this.getPrevLogTerm())
+ .setPrevLogIndex(this.getPrevLogIndex())
+ .setLeaderCommit(this.getLeaderCommit());
+
+ for (ReplicatedLogEntry logEntry : this.getEntries()) {
+
+ AppendEntriesMessages.AppendEntries.ReplicatedLogEntry.Builder arBuilder =
+ AppendEntriesMessages.AppendEntries.ReplicatedLogEntry.newBuilder();
+
+ AppendEntriesMessages.AppendEntries.ReplicatedLogEntry.Payload.Builder arpBuilder =
+ AppendEntriesMessages.AppendEntries.ReplicatedLogEntry.Payload.newBuilder();
+
+ //get the client specific payload extensions and add them to the payload builder
+ Map<GeneratedMessage.GeneratedExtension, T> map = logEntry.getData().encode();
+ Iterator<Map.Entry<GeneratedMessage.GeneratedExtension, T>> iter = map.entrySet().iterator();
+
+ while (iter.hasNext()) {
+ Map.Entry<GeneratedMessage.GeneratedExtension, T> entry = iter.next();
+ arpBuilder.setExtension(entry.getKey(), entry.getValue());
+ }
+
+ arpBuilder.setClientPayloadClassName(logEntry.getData().getClientPayloadClassName());
+
+ arBuilder.setData(arpBuilder).setIndex(logEntry.getIndex()).setTerm(logEntry.getTerm());
+ to.addLogEntries(arBuilder);
+ }
+
+ return to.build();
+ }
+
+ public static AppendEntries fromSerializable(Object o){
+ AppendEntriesMessages.AppendEntries from = (AppendEntriesMessages.AppendEntries) o;
+
+ List<ReplicatedLogEntry> logEntryList = new ArrayList<>();
+ for (AppendEntriesMessages.AppendEntries.ReplicatedLogEntry leProtoBuff : from.getLogEntriesList()) {
+
+ Payload payload = null ;
+ try {
+ if(leProtoBuff.getData() != null && leProtoBuff.getData().getClientPayloadClassName() != null) {
+ String clientPayloadClassName = leProtoBuff.getData().getClientPayloadClassName();
+ payload = (Payload)Class.forName(clientPayloadClassName).newInstance();
+ payload = payload.decode(leProtoBuff.getData());
+ payload.setClientPayloadClassName(clientPayloadClassName);
+ } else {
+ LOG.error("Payload is null or payload does not have client payload class name");
+ }
+
+ } catch (InstantiationException e) {
+ LOG.error("InstantiationException when instantiating "+leProtoBuff.getData().getClientPayloadClassName(), e);
+ } catch (IllegalAccessException e) {
+ LOG.error("IllegalAccessException when accessing "+leProtoBuff.getData().getClientPayloadClassName(), e);
+ } catch (ClassNotFoundException e) {
+ LOG.error("ClassNotFoundException when loading "+leProtoBuff.getData().getClientPayloadClassName(), e);
+ }
+ ReplicatedLogEntry logEntry = new ReplicatedLogImplEntry(
+ leProtoBuff.getIndex(), leProtoBuff.getTerm(), payload);
+ logEntryList.add(logEntry);
+ }
+
+ AppendEntries to = new AppendEntries(from.getTerm(),
+ from.getLeaderId(),
+ from.getPrevLogIndex(),
+ from.getPrevLogTerm(),
+ logEntryList,
+ from.getLeaderCommit());
+
+ return to;
+ }