Akka/Scala example source code file (UntypedProducerTest.scala)

This example Akka source code file (UntypedProducerTest.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

actor, akka, akkacamelexception, an, camel, camelmessage, concurrent, duration, map, processor, test, testing, testroute, time, untypedproducer, untypedproducertest

The UntypedProducerTest.scala Akka example source code

/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */

package akka.camel

import language.postfixOps

import org.apache.camel.{ Exchange, Processor }
import org.apache.camel.builder.RouteBuilder
import org.apache.camel.component.mock.MockEndpoint

import akka.camel.TestSupport.SharedCamelSystem
import akka.actor.Props
import akka.pattern._
import scala.concurrent.Await
import scala.concurrent.duration._
import org.scalatest._
import akka.testkit._
import matchers.MustMatchers

class UntypedProducerTest extends WordSpec with Matchers with BeforeAndAfterAll with BeforeAndAfterEach with SharedCamelSystem with GivenWhenThen {
  import UntypedProducerTest._
  val timeout = 1 second
  override protected def beforeAll = {
    camel.context.addRoutes(new TestRoute)
  }

  override protected def afterEach = {
    mockEndpoint.reset
  }

  "An UntypedProducer producing a message to a sync Camel route" must {

    "produce a message and receive a normal response" in {
      val producer = system.actorOf(Props[SampleUntypedReplyingProducer], name = "sample-untyped-replying-producer")

      val message = CamelMessage("test", Map(CamelMessage.MessageExchangeId -> "123"))
      val future = producer.ask(message)(timeout)

      val expected = CamelMessage("received test", Map(CamelMessage.MessageExchangeId -> "123"))
      Await.result(future, timeout) match {
        case result: CamelMessage ⇒ result should be(expected)
        case unexpected           ⇒ fail("Actor responded with unexpected message:" + unexpected)
      }

    }

    "produce a message and receive a failure response" in {
      val producer = system.actorOf(Props[SampleUntypedReplyingProducer], name = "sample-untyped-replying-producer-failure")

      val message = CamelMessage("fail", Map(CamelMessage.MessageExchangeId -> "123"))
      filterEvents(EventFilter[AkkaCamelException](occurrences = 1)) {
        val future = producer.ask(message)(timeout).failed

        Await.result(future, timeout) match {
          case e: AkkaCamelException ⇒
            e.getMessage should be("failure")
            e.headers should be(Map(CamelMessage.MessageExchangeId -> "123"))
          case unexpected ⇒ fail("Actor responded with unexpected message:" + unexpected)
        }
      }
    }
  }

  "An UntypedProducer producing a message to a sync Camel route and then forwarding the response" must {

    "produce a message and send a normal response to direct:forward-test-1" in {
      val producer = system.actorOf(Props[SampleUntypedForwardingProducer], name = "sample-untyped-forwarding-producer")

      mockEndpoint.expectedBodiesReceived("received test")
      producer.tell(CamelMessage("test", Map[String, Any]()), producer)
      mockEndpoint.assertIsSatisfied
    }

  }

  private def mockEndpoint = camel.context.getEndpoint("mock:mock", classOf[MockEndpoint])
}

object UntypedProducerTest {
  class TestRoute extends RouteBuilder {
    def configure {
      from("direct:forward-test-1").to("mock:mock")
      from("direct:producer-test-1").process(new Processor() {
        def process(exchange: Exchange) = {
          exchange.getIn.getBody match {
            case "fail" ⇒ throw new Exception("failure")
            case body   ⇒ exchange.getOut.setBody("received %s" format body)
          }
        }
      })
    }
  }
}