pekko/akka-docs/rst/common/code/docs/circuitbreaker/CircuitBreakerDocSpec.scala

46 lines
1.1 KiB
Scala

/**
* Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
*/
package docs.circuitbreaker
//#imports1
import scala.concurrent.duration._
import akka.pattern.CircuitBreaker
import akka.pattern.pipe
import akka.actor.Actor
import akka.actor.ActorLogging
import scala.concurrent.Future
import akka.event.Logging
//#imports1
class CircuitBreakerDocSpec {}
//#circuit-breaker-initialization
class DangerousActor extends Actor with ActorLogging {
import context.dispatcher
val breaker =
new CircuitBreaker(context.system.scheduler,
maxFailures = 5,
callTimeout = 10.seconds,
resetTimeout = 1.minute).onOpen(notifyMeOnOpen())
def notifyMeOnOpen(): Unit =
log.warning("My CircuitBreaker is now open, and will not close for one minute")
//#circuit-breaker-initialization
//#circuit-breaker-usage
def dangerousCall: String = "This really isn't that dangerous of a call after all"
def receive = {
case "is my middle name"
breaker.withCircuitBreaker(Future(dangerousCall)) pipeTo sender
case "block for me"
sender ! breaker.withSyncCircuitBreaker(dangerousCall)
}
//#circuit-breaker-usage
}