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Code Issues Pull requests Projects Releases 6 Packages Wiki Activity Actions 11

Improved priority mailbox usage, and documentation. See #1458

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This commit is contained in:
Patrik Nordwall 2011-12-21 20:34:46 +01:00
parent c4401f1ca8
commit 817c3c5ee7
6 changed files with 115 additions and 118 deletions
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47
akka-docs/scala/code/akka/docs/dispatcher/DispatcherDocSpec.scala
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@ -6,10 +6,8 @@ package akka.docs.dispatcher
import org.scalatest.{ BeforeAndAfterAll, WordSpec }
import org.scalatest.matchers.MustMatchers
import akka.testkit.AkkaSpec
import akka.dispatch.PriorityGenerator
import akka.actor.Props
import akka.actor.Actor
import akka.dispatch.UnboundedPriorityMailbox
import akka.event.Logging
import akka.event.LoggingAdapter
import akka.util.duration._
@ -56,8 +54,36 @@ object DispatcherDocSpec {
type = BalancingDispatcher
}
//#my-balancing-config
//#prio-dispatcher-config
prio-dispatcher {
mailboxType = "akka.docs.dispatcher.DispatcherDocSpec$PrioMailbox"
}
//#prio-dispatcher-config
//#prio-dispatcher-config-java
prio-dispatcher-java {
mailboxType = "akka.docs.dispatcher.DispatcherDocTestBase$PrioMailbox"
}
//#prio-dispatcher-config-java
"""
//#prio-mailbox
import akka.dispatch.PriorityGenerator
import akka.dispatch.UnboundedPriorityMailbox
import com.typesafe.config.Config
val generator = PriorityGenerator { // Create a new PriorityGenerator, lower prio means more important
case 'highpriority ⇒ 0 // 'highpriority messages should be treated first if possible
case 'lowpriority ⇒ 100 // 'lowpriority messages should be treated last if possible
case PoisonPill ⇒ 1000 // PoisonPill when no other left
case otherwise ⇒ 50 // We default to 50
}
// We create a new Priority dispatcher and seed it with the priority generator
class PrioMailbox(config: Config) extends UnboundedPriorityMailbox(generator)
//#prio-mailbox
class MyActor extends Actor {
def receive = {
case x ⇒
@ -90,21 +116,6 @@ class DispatcherDocSpec extends AkkaSpec(DispatcherDocSpec.config) {
"defining priority dispatcher" in {
//#prio-dispatcher
val gen = PriorityGenerator { // Create a new PriorityGenerator, lower prio means more important
case 'highpriority ⇒ 0 // 'highpriority messages should be treated first if possible
case 'lowpriority ⇒ 100 // 'lowpriority messages should be treated last if possible
case PoisonPill ⇒ 1000 // PoisonPill when no other left
case otherwise ⇒ 50 // We default to 50
}
// FIXME #1458: how should we make it easy to configure prio mailbox?
// We create a new Priority dispatcher and seed it with the priority generator
val dispatcherKey = "prio-dispatcher"
val dispatcherConfigurator = new MessageDispatcherConfigurator(system.dispatchers.defaultDispatcherConfig, system.dispatchers.prerequisites) {
val instance = system.dispatchers.newDispatcher(dispatcherKey, 5, UnboundedPriorityMailbox(gen)).build
override def dispatcher(): MessageDispatcher = instance
}
system.dispatchers.register(dispatcherKey, dispatcherConfigurator)
val a = system.actorOf( // We create a new Actor that just prints out what it processes
Props(new Actor {
@ -122,7 +133,7 @@ class DispatcherDocSpec extends AkkaSpec(DispatcherDocSpec.config) {
def receive = {
case x ⇒ log.info(x.toString)
}
}).withDispatcher(dispatcherKey))
}).withDispatcher("prio-dispatcher"))
/*
Logs: