public AppendEntriesResponse Handle(AppendEntries appendEntries)
{
var response = _rules.AppendEntriesTermIsLessThanCurrentTerm(appendEntries, CurrentState);
if (response.shouldReturn)
{
return(response.appendEntriesResponse);
}
response = _rules.LogDoesntContainEntryAtPreviousLogIndexWhoseTermMatchesPreviousLogTerm(appendEntries, _log, CurrentState);
if (response.shouldReturn)
{
return(response.appendEntriesResponse);
}
_rules.DeleteAnyConflictsInLog(appendEntries, _log);
_rules.ApplyEntriesToLog(appendEntries, _log);
var commitIndexAndLastApplied = _rules.CommitIndexAndLastApplied(appendEntries, _log, CurrentState);
ApplyToStateMachine(commitIndexAndLastApplied.commitIndex, commitIndexAndLastApplied.lastApplied);
SetLeaderId(appendEntries);
AppendEntriesTermIsGreaterThanCurrentTerm(appendEntries);
return(new AppendEntriesResponse(CurrentState.CurrentTerm, true));
}
public async Task <AppendEntriesResponse> Handle(AppendEntries appendEntries)
{
var response = _rules.AppendEntriesTermIsLessThanCurrentTerm(appendEntries, CurrentState);
if (response.shouldReturn)
{
return(response.appendEntriesResponse);
}
response = await _rules.LogDoesntContainEntryAtPreviousLogIndexWhoseTermMatchesPreviousLogTerm(appendEntries, _log, CurrentState);
if (response.shouldReturn)
{
return(response.appendEntriesResponse);
}
await _rules.DeleteAnyConflictsInLog(appendEntries, _log);
await _rules.ApplyEntriesToLog(appendEntries, _log);
var commitIndexAndLastApplied = await _rules.CommitIndexAndLastApplied(appendEntries, _log, CurrentState);
await ApplyToStateMachine(commitIndexAndLastApplied.commitIndex, commitIndexAndLastApplied.lastApplied, appendEntries);
SetLeaderId(appendEntries);
_messagesSinceLastElectionExpiry++;
return(new AppendEntriesResponse(CurrentState.CurrentTerm, true));
}