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=clu replace Set -- with diff and ++ with union

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* better performance according to
  https://docs.google.com/presentation/d/1Qjryxoe-fYEM8ZPhM-98LKfbhnRcn5eAEMNlVVnixsA/pub
This commit is contained in:
Patrik Nordwall 2015-10-30 14:59:36 +01:00
parent 9380983d3c
commit c7c187f6b7
24 changed files with 46 additions and 46 deletions
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6
akka-cluster/src/main/scala/akka/cluster/ClusterEvent.scala
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@ -272,7 +272,7 @@ object ClusterEvent {
private[cluster] def diffMemberEvents(oldGossip: Gossip, newGossip: Gossip): immutable.Seq[MemberEvent] =
if (newGossip eq oldGossip) Nil
else {
val newMembers = newGossip.members -- oldGossip.members
val newMembers = newGossip.members diff oldGossip.members
val membersGroupedByAddress = List(newGossip.members, oldGossip.members).flatten.groupBy(_.uniqueAddress)
val changedMembers = membersGroupedByAddress collect {
case (_, newMember :: oldMember :: Nil) if newMember.status != oldMember.status || newMember.upNumber != oldMember.upNumber ⇒
@ -285,7 +285,7 @@ object ClusterEvent {
// no events for other transitions
}
val removedMembers = oldGossip.members -- newGossip.members
val removedMembers = oldGossip.members diff newGossip.members
val removedEvents = removedMembers.map(m ⇒ MemberRemoved(m.copy(status = Removed), m.status))
(new VectorBuilder[MemberEvent]() ++= memberEvents ++= removedEvents).result()
@ -305,7 +305,7 @@ object ClusterEvent {
*/
private[cluster] def diffRolesLeader(oldGossip: Gossip, newGossip: Gossip, selfUniqueAddress: UniqueAddress): Set[RoleLeaderChanged] = {
for {
role ← (oldGossip.allRoles ++ newGossip.allRoles)
role ← (oldGossip.allRoles union newGossip.allRoles)
newLeader = newGossip.roleLeader(role, selfUniqueAddress)
if newLeader != oldGossip.roleLeader(role, selfUniqueAddress)
} yield RoleLeaderChanged(role, newLeader.map(_.address))