cbe5dd2cf5
Previously know as [patriknw/akka-data-replication](https://github.com/patriknw/akka-data-replication), which was originally inspired by [jboner/akka-crdt](https://github.com/jboner/akka-crdt). The functionality is very similar to akka-data-replication 0.11. Here is a list of the most important changes: * The package name changed to `akka.cluster.ddata` * The extension was renamed to `DistributedData` * The keys changed from strings to classes with unique identifiers and type information of the data values, e.g. `ORSetKey[Int]("set2")` * The optional read consistency parameter was removed from the `Update` message. If you need to read from other replicas before performing the update you have to first send a `Get` message and then continue with the ``Update`` when the ``GetSuccess`` is received. * `BigInt` is used in `GCounter` and `PNCounter` instead of `Long` * Improvements of java api * Better documentation
59 lines
1.9 KiB
Scala
59 lines
1.9 KiB
Scala
/**
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* Copyright (C) 2015 Typesafe Inc. <http://www.typesafe.com>
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*/
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package docs.ddata.protobuf
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//#serializer
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import scala.collection.JavaConverters._
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import akka.actor.ExtendedActorSystem
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import akka.cluster.ddata.GSet
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import akka.cluster.ddata.protobuf.ReplicatedDataSerializer
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import akka.cluster.ddata.protobuf.SerializationSupport
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import akka.serialization.Serializer
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import docs.ddata.TwoPhaseSet
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import docs.ddata.protobuf.msg.TwoPhaseSetMessages
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class TwoPhaseSetSerializer2(val system: ExtendedActorSystem)
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extends Serializer with SerializationSupport {
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override def includeManifest: Boolean = false
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override def identifier = 99999
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val replicatedDataSerializer = new ReplicatedDataSerializer(system)
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override def toBinary(obj: AnyRef): Array[Byte] = obj match {
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case m: TwoPhaseSet ⇒ twoPhaseSetToProto(m).toByteArray
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case _ ⇒ throw new IllegalArgumentException(
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s"Can't serialize object of type ${obj.getClass}")
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}
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override def fromBinary(bytes: Array[Byte], clazz: Option[Class[_]]): AnyRef = {
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twoPhaseSetFromBinary(bytes)
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}
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def twoPhaseSetToProto(twoPhaseSet: TwoPhaseSet): TwoPhaseSetMessages.TwoPhaseSet2 = {
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val b = TwoPhaseSetMessages.TwoPhaseSet2.newBuilder()
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if (!twoPhaseSet.adds.isEmpty)
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b.setAdds(otherMessageToProto(twoPhaseSet.adds).toByteString())
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if (!twoPhaseSet.removals.isEmpty)
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b.setRemovals(otherMessageToProto(twoPhaseSet.removals).toByteString())
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b.build()
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}
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def twoPhaseSetFromBinary(bytes: Array[Byte]): TwoPhaseSet = {
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val msg = TwoPhaseSetMessages.TwoPhaseSet2.parseFrom(bytes)
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val adds =
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if (msg.hasAdds)
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otherMessageFromBinary(msg.getAdds.toByteArray).asInstanceOf[GSet[String]]
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else
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GSet.empty[String]
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val removals =
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if (msg.hasRemovals)
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otherMessageFromBinary(msg.getRemovals.toByteArray).asInstanceOf[GSet[String]]
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else
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GSet.empty[String]
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TwoPhaseSet(adds, removals)
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}
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}
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//#serializer
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