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=cdd #17779 Create activator template for Distributed Data

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* includes the samples, with tutorial text description
This commit is contained in:
Patrik Nordwall 2015-06-29 21:18:39 +02:00
parent 33bc502c76
commit 252e88c082
29 changed files with 1278 additions and 821 deletions
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17
akka-distributed-data/src/test/scala/akka/cluster/ddata/sample/LotsOfDataBot.scala → akka-distributed-data/src/test/scala/akka/cluster/ddata/LotsOfDataBot.scala
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@ -1,7 +1,7 @@
/**
* Copyright (C) 2015 Typesafe Inc. <http://www.typesafe.com>
*/
package akka.cluster.ddata.sample
package akka.cluster.ddata
import scala.concurrent.duration._
import scala.concurrent.forkjoin.ThreadLocalRandom
@ -10,12 +10,19 @@ import akka.actor.ActorLogging
import akka.actor.ActorSystem
import akka.actor.Props
import akka.cluster.Cluster
import akka.cluster.ddata.DistributedData
import akka.cluster.ddata.ORSet
import akka.cluster.ddata.Replicator.Changed
import akka.cluster.ddata.Replicator.GetKeyIds
import akka.cluster.ddata.Replicator.GetKeyIdsResult
import akka.cluster.ddata.Replicator.Subscribe
import akka.cluster.ddata.Replicator.Update
import akka.cluster.ddata.Replicator.UpdateResponse
import akka.cluster.ddata.Replicator.WriteLocal
import com.typesafe.config.ConfigFactory
import akka.cluster.ddata.Replicator
import akka.cluster.ddata.ORSetKey
/**
* This "sample" simulates lots of data entries, and can be used for
* optimizing replication (e.g. catch-up when adding more nodes).
*/
object LotsOfDataBot {
def main(args: Array[String]): Unit = {

98
akka-distributed-data/src/test/scala/akka/cluster/ddata/sample/DataBot.scala
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@ -1,98 +0,0 @@
/**
* Copyright (C) 2015 Typesafe Inc. <http://www.typesafe.com>
*/
package akka.cluster.ddata.sample
import scala.concurrent.duration._
import scala.concurrent.forkjoin.ThreadLocalRandom
import akka.actor.Actor
import akka.actor.ActorLogging
import akka.actor.ActorSystem
import akka.actor.Props
import akka.cluster.Cluster
import akka.cluster.ddata.DistributedData
import akka.cluster.ddata.ORSet
import com.typesafe.config.ConfigFactory
import akka.cluster.ddata.Replicator
import akka.cluster.ddata.ORSetKey
object DataBot {
def main(args: Array[String]): Unit = {
if (args.isEmpty)
startup(Seq("2551", "2552", "0"))
else
startup(args)
}
def startup(ports: Seq[String]): Unit = {
ports.foreach { port ⇒
// Override the configuration of the port
val config = ConfigFactory.parseString("akka.remote.netty.tcp.port=" + port).
withFallback(ConfigFactory.load(
ConfigFactory.parseString("""
akka.actor.provider = "akka.cluster.ClusterActorRefProvider"
akka.remote {
netty.tcp {
hostname = "127.0.0.1"
port = 0
}
}
akka.cluster {
seed-nodes = [
"akka.tcp://ClusterSystem@127.0.0.1:2551",
"akka.tcp://ClusterSystem@127.0.0.1:2552"]
auto-down-unreachable-after = 10s
}
""")))
// Create an Akka system
val system = ActorSystem("ClusterSystem", config)
// Create an actor that handles cluster domain events
system.actorOf(Props[DataBot], name = "dataBot")
}
}
private case object Tick
}
class DataBot extends Actor with ActorLogging {
import DataBot._
import Replicator._
val replicator = DistributedData(context.system).replicator
implicit val node = Cluster(context.system)
import context.dispatcher
val tickTask = context.system.scheduler.schedule(5.seconds, 5.seconds, self, Tick)
val DataKey = ORSetKey[String]("key")
replicator ! Subscribe(DataKey, self)
def receive = {
case Tick ⇒
val s = ThreadLocalRandom.current().nextInt(97, 123).toChar.toString
if (ThreadLocalRandom.current().nextBoolean()) {
// add
log.info("Adding: {}", s)
replicator ! Update(DataKey, ORSet.empty[String], WriteLocal)(_ + s)
} else {
// remove
log.info("Removing: {}", s)
replicator ! Update(DataKey, ORSet.empty[String], WriteLocal)(_ - s)
}
case _: UpdateResponse[_] ⇒ // ignore
case c @ Changed(DataKey) ⇒
log.info("Current elements: {}", c.get(DataKey).elements)
}
override def postStop(): Unit = tickTask.cancel()
}