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!clu #3617 API improvements related to CurrentClusterState

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* Getter for CurrentClusterState in Cluster extension, updated via
  ClusterReadView
* Remove lazy init of readView. Otherwise the cluster.state will be
  empty on first access, wich is probably surprising
* Subscribe to several cluster event types at once, to ensure *one*
  CurrentClusterEvent followed by change events
* Deprecate publishCurrentClusterState, was a bad idea, use sendCurrentClusterState
  instead
* Possibility to subscribe with InitialStateAsEvents to receive events corresponding
  to CurrentClusterState
* CurrentClusterState not a ClusterDomainEvent, ticket #3614
This commit is contained in:
Patrik Nordwall 2014-01-08 14:14:48 +01:00
parent bfbee94fec
commit 2e5193347e
19 changed files with 342 additions and 99 deletions
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9
akka-cluster/src/main/scala/akka/cluster/routing/ClusterRouterConfig.scala
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@ -239,7 +239,7 @@ private[akka] trait ClusterRouterConfigBase extends RouterConfig {
// Intercept ClusterDomainEvent and route them to the ClusterRouterActor
override def isManagementMessage(msg: Any): Boolean =
(msg.isInstanceOf[ClusterDomainEvent]) || super.isManagementMessage(msg)
(msg.isInstanceOf[ClusterDomainEvent]) || msg.isInstanceOf[CurrentClusterState] || super.isManagementMessage(msg)
}
/**
@ -373,10 +373,9 @@ private[akka] trait ClusterRouterActor { this: RouterActor ⇒
def cluster: Cluster = Cluster(context.system)
// re-subscribe when restart
override def preStart(): Unit = {
cluster.subscribe(self, classOf[MemberEvent])
cluster.subscribe(self, classOf[ReachabilityEvent])
}
override def preStart(): Unit =
cluster.subscribe(self, classOf[MemberEvent], classOf[ReachabilityEvent])
override def postStop(): Unit = cluster.unsubscribe(self)
var nodes: immutable.SortedSet[Address] = {