Akka/Scala example source code file (DisallowJoinOfTwoClustersSpec.scala)

This example Akka source code file (DisallowJoinOfTwoClustersSpec.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

a, akka, c, cluster, disallowjoinoftwoclustersmultijvmnode1, disallowjoinoftwoclustersmultijvmnode2, disallowjoinoftwoclustersmultijvmnode3, disallowjoinoftwoclustersmultijvmspec, disallowjoinoftwoclustersspec, longrunningtest, multinodeclusterspec, multinodespec, test, testing, testkit, three

The DisallowJoinOfTwoClustersSpec.scala Akka example source code

/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */

package akka.cluster

import com.typesafe.config.ConfigFactory
import akka.remote.testkit.MultiNodeConfig
import akka.remote.testkit.MultiNodeSpec
import akka.testkit._

object DisallowJoinOfTwoClustersMultiJvmSpec extends MultiNodeConfig {
  val a1 = role("a1")
  val a2 = role("a2")
  val b1 = role("b1")
  val b2 = role("b2")
  val c1 = role("c1")

  commonConfig(debugConfig(on = false).withFallback(MultiNodeClusterSpec.clusterConfigWithFailureDetectorPuppet))
}

class DisallowJoinOfTwoClustersMultiJvmNode1 extends DisallowJoinOfTwoClustersSpec
class DisallowJoinOfTwoClustersMultiJvmNode2 extends DisallowJoinOfTwoClustersSpec
class DisallowJoinOfTwoClustersMultiJvmNode3 extends DisallowJoinOfTwoClustersSpec
class DisallowJoinOfTwoClustersMultiJvmNode4 extends DisallowJoinOfTwoClustersSpec
class DisallowJoinOfTwoClustersMultiJvmNode5 extends DisallowJoinOfTwoClustersSpec

abstract class DisallowJoinOfTwoClustersSpec
  extends MultiNodeSpec(DisallowJoinOfTwoClustersMultiJvmSpec)
  with MultiNodeClusterSpec {

  import DisallowJoinOfTwoClustersMultiJvmSpec._

  "Three different clusters (A, B and C)" must {

    "not be able to join" taggedAs LongRunningTest in {
      // make sure that the node-to-join is started before other join
      runOn(a1, b1, c1) {
        startClusterNode()
      }
      enterBarrier("first-started")

      runOn(a1, a2) {
        cluster.join(a1)
      }
      runOn(b1, b2) {
        cluster.join(b1)
      }
      runOn(c1) {
        cluster.join(c1)
      }

      val expectedSize = if (myself == c1) 1 else 2
      awaitMembersUp(numberOfMembers = expectedSize)

      enterBarrier("two-members")

      runOn(b1) {
        cluster.join(a1)
      }
      runOn(b2) {
        cluster.join(c1)
      }
      runOn(c1) {
        cluster.join(a2)
      }

      // no change expected
      1 to 5 foreach { _ ⇒
        clusterView.members.size should be(expectedSize)
        Thread.sleep(1000)
      }

      enterBarrier("after-1")
    }

  }
}