Scala CurrentClusterState类代码示例

本文整理汇总了Scala中akka.cluster.ClusterEvent.CurrentClusterState类的典型用法代码示例。如果您正苦于以下问题：Scala CurrentClusterState类的具体用法？Scala CurrentClusterState怎么用？Scala CurrentClusterState使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了CurrentClusterState类的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Scala代码示例。

示例1: MetricsListener

//设置package包名称以及导入依赖的类
package sample.cluster.factorial

import akka.actor.ActorLogging
import akka.actor.Actor

//#metrics-listener
import akka.cluster.Cluster
import akka.cluster.ClusterEvent.ClusterMetricsChanged
import akka.cluster.ClusterEvent.CurrentClusterState
import akka.cluster.NodeMetrics
import akka.cluster.StandardMetrics.HeapMemory
import akka.cluster.StandardMetrics.Cpu

class MetricsListener extends Actor with ActorLogging {
  val selfAddress = Cluster(context.system).selfAddress

  // subscribe to ClusterMetricsChanged
  // re-subscribe when restart
  override def preStart(): Unit =
    Cluster(context.system).subscribe(self, classOf[ClusterMetricsChanged])
  override def postStop(): Unit =
    Cluster(context.system).unsubscribe(self)

  def receive = {
    case ClusterMetricsChanged(clusterMetrics) =>
      clusterMetrics.filter(_.address == selfAddress) foreach { nodeMetrics =>
        logHeap(nodeMetrics)
        logCpu(nodeMetrics)
      }
    case state: CurrentClusterState => // ignore
  }

  def logHeap(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case HeapMemory(address, timestamp, used, committed, max) =>
      log.info("Used heap: {} MB", used.doubleValue / 1024 / 1024)
    case _ => // no heap info
  }

  def logCpu(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case Cpu(address, timestamp, Some(systemLoadAverage), cpuCombined, processors) =>
      log.info("Load: {} ({} processors)", systemLoadAverage, processors)
    case _ => // no cpu info
  }
}

//#metrics-listener

开发者ID:love1314sea，项目名称:akka-2.3.16，代码行数:47，代码来源:MetricsListener.scala

示例2: MetricsListener

//设置package包名称以及导入依赖的类
package sample.cluster.factorial

import akka.actor.ActorLogging
import akka.actor.Actor
import akka.cluster.Cluster
import akka.cluster.metrics.ClusterMetricsEvent
import akka.cluster.metrics.ClusterMetricsChanged
import akka.cluster.ClusterEvent.CurrentClusterState
import akka.cluster.metrics.NodeMetrics
import akka.cluster.metrics.StandardMetrics.HeapMemory
import akka.cluster.metrics.StandardMetrics.Cpu
import akka.cluster.metrics.ClusterMetricsExtension

class MetricsListener extends Actor with ActorLogging {
  val selfAddress = Cluster(context.system).selfAddress
  val extension = ClusterMetricsExtension(context.system)

  // Subscribe unto ClusterMetricsEvent events.
  override def preStart(): Unit = extension.subscribe(self)
  
  // Unsubscribe from ClusterMetricsEvent events.
  override def postStop(): Unit = extension.unsubscribe(self)

  def receive = {
    case ClusterMetricsChanged(clusterMetrics) =>
      clusterMetrics.filter(_.address == selfAddress) foreach { nodeMetrics =>
        logHeap(nodeMetrics)
        logCpu(nodeMetrics)
      }
    case state: CurrentClusterState => // Ignore.
  }

  def logHeap(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case HeapMemory(address, timestamp, used, committed, max) =>
      log.info("Used heap: {} MB", used.doubleValue / 1024 / 1024)
    case _ => // No heap info.
  }

  def logCpu(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case Cpu(address, timestamp, Some(systemLoadAverage), cpuCombined, cpuStolen, processors) =>
      log.info("Load: {} ({} processors)", systemLoadAverage, processors)
    case _ => // No cpu info.
  }
}

开发者ID:seglo，项目名称:akka-cluster-conductr，代码行数:45，代码来源:MetricsListener.scala

示例3: MetricsListener

//设置package包名称以及导入依赖的类
package sample.cluster.factorial

//#metrics-listener
import akka.actor.ActorLogging
import akka.actor.Actor
import akka.cluster.Cluster
import akka.cluster.metrics.ClusterMetricsEvent
import akka.cluster.metrics.ClusterMetricsChanged
import akka.cluster.ClusterEvent.CurrentClusterState
import akka.cluster.metrics.NodeMetrics
import akka.cluster.metrics.StandardMetrics.HeapMemory
import akka.cluster.metrics.StandardMetrics.Cpu
import akka.cluster.metrics.ClusterMetricsExtension

class MetricsListener extends Actor with ActorLogging {
  val selfAddress = Cluster(context.system).selfAddress
  val extension = ClusterMetricsExtension(context.system)

  // Subscribe unto ClusterMetricsEvent events.
  override def preStart(): Unit = extension.subscribe(self)
  
  // Unsubscribe from ClusterMetricsEvent events.
  override def postStop(): Unit = extension.unsubscribe(self)

  def receive = {
    case ClusterMetricsChanged(clusterMetrics) =>
      clusterMetrics.filter(_.address == selfAddress) foreach { nodeMetrics =>
        logHeap(nodeMetrics)
        logCpu(nodeMetrics)
      }
    case state: CurrentClusterState => // Ignore.
  }

  def logHeap(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case HeapMemory(address, timestamp, used, committed, max) =>
      log.info("Used heap: {} MB", used.doubleValue / 1024 / 1024)
    case _ => // No heap info.
  }

  def logCpu(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case Cpu(address, timestamp, Some(systemLoadAverage), cpuCombined, cpuStolen, processors) =>
      log.info("Load: {} ({} processors)", systemLoadAverage, processors)
    case _ => // No cpu info.
  }
}
//#metrics-listener

开发者ID:somethingconcon，项目名称:grocer，代码行数:47，代码来源:MetricsListener.scala

示例4: BackendActor

//设置package包名称以及导入依赖的类
package com.example

import akka.actor.{Actor, ActorLogging, RootActorPath}
import akka.cluster.ClusterEvent.{CurrentClusterState, MemberUp}
import akka.cluster.{Cluster, Member, MemberStatus}


class BackendActor extends Actor with ActorLogging {

  val cluster = Cluster(context.system)

  override def preStart(): Unit = {
    cluster.subscribe(self, classOf[MemberUp])
  }

  override def postStop(): Unit = {
    cluster.unsubscribe(self)
  }

  override def receive: Receive = {
    case state: CurrentClusterState =>
      log.info("receive current cluster state")
      state.members.filter(_.status == MemberStatus.Up).foreach(register)
    case MemberUp(member) =>
      log.info("register new member")
      register(member)
    case string: String =>
      log.info(string)
  }

  def register(member: Member): Unit = {
    if (member.hasRole("frontend")) {
      context.actorSelection(RootActorPath(member.address) / "user" / "Frontend") ! "Register"
    }
  }
}

开发者ID:TechResearchID，项目名称:akka-cluster，代码行数:37，代码来源:BackendActor.scala

示例5: MetricsListener

//设置package包名称以及导入依赖的类
package com.example.cluster.metrics

import akka.actor.{Actor, ActorLogging}
import akka.cluster.Cluster
import akka.cluster.ClusterEvent.CurrentClusterState
import akka.cluster.metrics.StandardMetrics.{Cpu, HeapMemory}
import akka.cluster.metrics.{ClusterMetricsChanged, ClusterMetricsExtension, NodeMetrics}

class MetricsListener extends Actor with ActorLogging {
  val selfAddress = Cluster(context.system).selfAddress
  val extension = ClusterMetricsExtension(context.system)

  // Subscribe unto ClusterMetricsEvent events.
  override def preStart(): Unit = extension.subscribe(self)
  // Unsubscribe from ClusterMetricsEvent events.
  override def postStop(): Unit = extension.unsubscribe(self)

  override def receive: Receive = {
    case ClusterMetricsChanged(clusterMetrics) =>
      clusterMetrics.filter(_.address == selfAddress) foreach { nodeMetrics =>
        logHeap(nodeMetrics)
        logCpu(nodeMetrics)
      }
    case state: CurrentClusterState => // Ignore.
  }

  def logHeap(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case HeapMemory(address, timestamp, used, committed, max) =>
      log.info("Used heap: {} MB", used.doubleValue / 1024 / 1024)
    case _ => // No heap info.
  }

  def logCpu(nodeMetrics: NodeMetrics): Unit = nodeMetrics match {
    case Cpu(address, timestamp, Some(systemLoadAverage), cpuCombined, cpuStolen, processors) =>
      log.info("Load: {} ({} processors)", systemLoadAverage, processors)
    case _ => // No cpu info.
  }
}

开发者ID:kalamara，项目名称:akka-cassandra-hazelcast-cluster，代码行数:39，代码来源:MetricsListener.scala

示例6: UserListener

//设置package包名称以及导入依赖的类
package de.chasmo.chat

import akka.actor._
import akka.cluster.{Cluster, MemberStatus}
import akka.cluster.ClusterEvent.{CurrentClusterState, MemberEvent, MemberRemoved, MemberUp}

class UserListener extends Actor with ActorLogging {

  val cluster = Cluster(context.system)

  override def preStart(): Unit =
    cluster.subscribe(self, classOf[MemberEvent])

  override def postStop(): Unit =
    cluster unsubscribe self

  var nodes = Set.empty[Address]

  def receive = {
    case state: CurrentClusterState =>
      nodes = state.members.collect {
        case m if m.status == MemberStatus.Up => m.address
      }
    case MemberUp(member) =>
      nodes += member.address
      log.info("Member is Up: {}. {} nodes in cluster",
        member.address, nodes.size)
    case MemberRemoved(member, _) =>
      nodes -= member.address
      log.info("Member is Removed: {}. {} nodes cluster",
        member.address, nodes.size)
    case _: MemberEvent => // ignore
  }

}

object UserListener {

  def props: Props = Props(classOf[UserListener])

}

开发者ID:MartinSeeler，项目名称:akka-cluster-chat，代码行数:42，代码来源:UserListener.scala

示例7: AlcaudonClient

//设置package包名称以及导入依赖的类
package org.alcaudon.api

import akka.actor.{Actor, ActorLogging, ActorSelection, RootActorPath}
import akka.cluster.ClusterEvent.{CurrentClusterState, MemberUp}
import akka.cluster.{Cluster, Member, MemberStatus}
import org.alcaudon.core.{ActorConfig, DataflowGraph}

object AlcaudonClient {
  case class RegisterDataflowJob(dataflow: DataflowGraph)
  case object UnknownCoordinator
}

class AlcaudonClient extends Actor with ActorLogging with ActorConfig {

  import AlcaudonClient._

  val cluster = Cluster(context.system)

  override def preStart(): Unit = cluster.subscribe(self, classOf[MemberUp])
  override def postStop(): Unit = cluster.unsubscribe(self)

  var coordinator: Option[ActorSelection] = None

  def receive = receiveCoordinatorNode

  def receiveCoordinatorNode: Receive = {
    case state: CurrentClusterState =>
      val coordinator = state.members
        .filter(member =>
          member.status == MemberStatus.Up && member.hasRole("coordinator"))
        .map(getCoordinatorNodePath)
      if (coordinator.size == 1)
        context.become(receiveWithCoordinator(coordinator.head))
    case MemberUp(member) =>
      if (member.hasRole("coordinator"))
        context.become(receiveWithCoordinator(getCoordinatorNodePath(member)))
    case _ =>
      sender() ! UnknownCoordinator
  }

  def receiveWithCoordinator(coordinator: ActorSelection): Receive = {
    case request: RegisterDataflowJob =>
      coordinator ! request

  }

  def getCoordinatorNodePath(member: Member): ActorSelection =
    context.actorSelection(
      RootActorPath(member.address) / "user" / "coordinator")

}

开发者ID:fcofdez，项目名称:alcaudon，代码行数:52，代码来源:AlcaudonClient.scala

注：本文中的akka.cluster.ClusterEvent.CurrentClusterState类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。