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causal delivery of deltas, #22188

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* keep track of delta interval versions and skip deltas
  that are not consequtive, i.e. when some delta message was lost
* send the delta versions in the full state gossip to sync up the
  expected versions after dropped deltas
* implementation of deltas for ORSet
* refactoring of the delta types to allow for different type for the
  delta and the full state
* extensive tests
* mima filter
* performance optimizations
* simple pruning of deltas
* Java API
* update documentation
* KeyId type alias
* Use InternalApi annotation
This commit is contained in:
Patrik Nordwall 2017-02-07 11:21:56 +01:00
parent 94afbee179
commit b700b840d1
41 changed files with 5010 additions and 1950 deletions
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7
akka-distributed-data/src/main/scala/akka/cluster/ddata/ORMap.scala
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@ -6,6 +6,7 @@ package akka.cluster.ddata
import akka.cluster.Cluster
import akka.cluster.UniqueAddress
import akka.util.HashCode
import akka.annotation.InternalApi
object ORMap {
private val _empty: ORMap[Any, ReplicatedData] = new ORMap(ORSet.empty, Map.empty)
@ -93,7 +94,7 @@ final class ORMap[A, B <: ReplicatedData] private[akka] (
/**
* INTERNAL API
*/
private[akka] def put(node: UniqueAddress, key: A, value: B): ORMap[A, B] =
@InternalApi private[akka] def put(node: UniqueAddress, key: A, value: B): ORMap[A, B] =
if (value.isInstanceOf[ORSet[_]] && values.contains(key))
throw new IllegalArgumentException(
"`ORMap.put` must not be used to replace an existing `ORSet` " +
@ -123,7 +124,7 @@ final class ORMap[A, B <: ReplicatedData] private[akka] (
/**
* INTERNAL API
*/
private[akka] def updated(node: UniqueAddress, key: A, initial: B)(modify: B ⇒ B): ORMap[A, B] = {
@InternalApi private[akka] def updated(node: UniqueAddress, key: A, initial: B)(modify: B ⇒ B): ORMap[A, B] = {
val newValue = values.get(key) match {
case Some(old) ⇒ modify(old)
case _ ⇒ modify(initial)
@ -148,7 +149,7 @@ final class ORMap[A, B <: ReplicatedData] private[akka] (
/**
* INTERNAL API
*/
private[akka] def remove(node: UniqueAddress, key: A): ORMap[A, B] = {
@InternalApi private[akka] def remove(node: UniqueAddress, key: A): ORMap[A, B] = {
new ORMap(keys.remove(node, key), values - key)
}