a4dd6b7547
* Partial function, ConsistentHashRoute, for Scala API * withConsistentHashMapping ConsistentHashMapping for Java API * Updated documentation
63 lines
1.6 KiB
Scala
63 lines
1.6 KiB
Scala
/**
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* Copyright (C) 2009-2012 Typesafe Inc. <http://www.typesafe.com>
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*/
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package docs.routing
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import akka.testkit.AkkaSpec
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import akka.testkit.ImplicitSender
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object ConsistentHashingRouterDocSpec {
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//#cache-actor
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import akka.actor.Actor
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import akka.routing.ConsistentHashingRouter.ConsistentHashable
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import akka.routing.ConsistentHashingRouter.ConsistentHashableEnvelope
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class Cache extends Actor {
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var cache = Map.empty[String, String]
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def receive = {
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case Entry(key, value) ⇒ cache += (key -> value)
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case Get(key) ⇒ sender ! cache.get(key)
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case Evict(key) => cache -= key
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}
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}
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case class Evict(key: String)
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case class Get(key: String) extends ConsistentHashable {
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override def consistentHashKey: Any = key
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}
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case class Entry(key: String, value: String)
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case class EntryEnvelope(entry: Entry) extends ConsistentHashableEnvelope {
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override def consistentHashKey: Any = entry.key
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override def message: Any = entry
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}
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//#cache-actor
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}
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class ConsistentHashingRouterDocSpec extends AkkaSpec with ImplicitSender {
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import ConsistentHashingRouterDocSpec._
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"demonstrate usage of ConsistentHashableRouter" in {
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//#consistent-hashing-router
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import akka.actor.Props
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import akka.routing.ConsistentHashingRouter
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val cache = system.actorOf(Props[Cache].withRouter(ConsistentHashingRouter(10)), "cache")
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cache ! EntryEnvelope(Entry("hello", "HELLO"))
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cache ! EntryEnvelope(Entry("hi", "HI"))
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cache ! Get("hello")
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cache ! Get("hi")
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expectMsg(Some("HELLO"))
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expectMsg(Some("HI"))
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//#consistent-hashing-router
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}
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}
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