78 lines
1.8 KiB
Scala
78 lines
1.8 KiB
Scala
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/**
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* Copyright (C) 2009-2012 Typesafe Inc. <http://www.typesafe.com>
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*/
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package akka.docs.extension
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//#imports
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import akka.actor.Extension
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import akka.actor.ExtensionId
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import akka.actor.ExtensionIdProvider
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import akka.actor.ActorSystemImpl
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import akka.util.Duration
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import com.typesafe.config.Config
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import java.util.concurrent.TimeUnit
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//#imports
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import akka.actor.Actor
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import akka.testkit.AkkaSpec
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//#extension
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class SettingsImpl(config: Config) extends Extension {
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val DbUri: String = config.getString("myapp.db.uri")
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val CircuitBreakerTimeout: Duration = Duration(config.getMilliseconds("myapp.circuit-breaker.timeout"), TimeUnit.MILLISECONDS)
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}
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//#extension
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//#extensionid
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object Settings extends ExtensionId[SettingsImpl] with ExtensionIdProvider {
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override def lookup = Settings
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override def createExtension(system: ActorSystemImpl) = new SettingsImpl(system.settings.config)
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}
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//#extensionid
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object SettingsExtensionDocSpec {
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val config = """
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//#config
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myapp {
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db {
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uri = "mongodb://example1.com:27017,example2.com:27017"
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}
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circuit-breaker {
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timeout = 30 seconds
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}
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}
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//#config
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"""
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//#extension-usage-actor
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class MyActor extends Actor {
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val connection = connect(Settings(context.system).DbUri, Settings(context.system).CircuitBreakerTimeout)
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//#extension-usage-actor
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def receive = {
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case someMessage ⇒
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}
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def connect(dbUri: String, circuitBreakerTimeout: Duration) = {
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"dummy"
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}
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}
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}
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class SettingsExtensionDocSpec extends AkkaSpec(SettingsExtensionDocSpec.config) {
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"demonstrate how to create application specific settings extension in Scala" in {
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//#extension-usage
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val dbUri = Settings(system).DbUri
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val circuitBreakerTimeout = Settings(system).CircuitBreakerTimeout
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//#extension-usage
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}
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}
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