internal static void CasLeaders(HazelcastInstance hazelcastInstance, LeaderInfo leaderInfo, string dbName, Log log)
{
IAtomicReference <LeaderInfo> leaderRef = hazelcastInstance.getAtomicReference(DB_NAME_LEADER_TERM_PREFIX + dbName);
LeaderInfo current = leaderRef.get();
Optional <LeaderInfo> currentOpt = Optional.ofNullable(current);
//JAVA TO C# CONVERTER TODO TASK: Method reference arbitrary object instance method syntax is not converted by Java to C# Converter:
bool sameLeader = currentOpt.map(LeaderInfo::memberId).Equals(Optional.ofNullable(leaderInfo.MemberId()));
int termComparison = currentOpt.map(l => Long.compare(l.term(), leaderInfo.Term())).orElse(-1);
bool greaterTermExists = termComparison > 0;
bool sameTermButNoStepdown = termComparison == 0 && !leaderInfo.SteppingDown;
if (sameLeader || greaterTermExists || sameTermButNoStepdown)
{
return;
}
bool success = leaderRef.compareAndSet(current, leaderInfo);
if (!success)
{
log.Warn("Fail to set new leader info: %s. Latest leader info: %s.", leaderInfo, leaderRef.get());
}
}
public override void SetLeader(LeaderInfo newLeader, string dbName)
{
LeaderInfo currentLeaderInfo = Leader;
if (currentLeaderInfo.Term() < newLeader.Term() && LocalDBName().Equals(dbName))
{
Log.info("Leader %s updating leader info for database %s and term %s", MyselfConflict, dbName, newLeader.Term());
Leader0 = newLeader;
}
}
internal void CasLeaders(LeaderInfo leaderInfo, string dbName)
{
lock ( _leaderMap )
{
Optional <LeaderInfo> current = Optional.ofNullable(_leaderMap.get(dbName));
//JAVA TO C# CONVERTER TODO TASK: Method reference arbitrary object instance method syntax is not converted by Java to C# Converter:
bool sameLeader = current.map(LeaderInfo::memberId).Equals(Optional.ofNullable(leaderInfo.MemberId()));
int termComparison = current.map(l => Long.compare(l.term(), leaderInfo.Term())).orElse(-1);
bool greaterTermExists = termComparison > 0;
bool sameTermButNoStepDown = termComparison == 0 && !leaderInfo.SteppingDown;
if (!(greaterTermExists || sameTermButNoStepDown || sameLeader))
{
_leaderMap.put(dbName, leaderInfo);
}
}
}
public override void HandleStepDown(long term, string dbName)
{
LeaderInfo localLeaderInfo = Leader;
bool wasLeaderForDbAndTerm = Objects.Equals(MyselfConflict, localLeaderInfo.MemberId()) && LocalDBName().Equals(dbName) && term == localLeaderInfo.Term();
if (wasLeaderForDbAndTerm)
{
Log.info("Step down event detected. This topology member, with MemberId %s, was leader in term %s, now moving " + "to follower.", MyselfConflict, localLeaderInfo.Term());
HandleStepDown0(localLeaderInfo.StepDown());
}
}