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package kamon.spray
import akka.testkit.{ TestKitBase, TestProbe }
import akka.actor.ActorSystem
import org.scalatest.WordSpecLike
import spray.httpx.RequestBuilding
import kamon.Kamon
import kamon.metrics.{ TraceMetrics, Metrics }
import spray.http.{ HttpResponse, HttpRequest }
import kamon.metrics.Subscriptions.TickMetricSnapshot
import kamon.trace.TraceRecorder
import spray.can.client.ClientRequestInstrumentation
import com.typesafe.config.ConfigFactory
import spray.can.Http
import akka.pattern.pipe
import spray.client.pipelining
import scala.concurrent.duration._
class ClientRequestInstrumentationSpec extends TestKitBase with WordSpecLike with RequestBuilding with TestServer {
implicit lazy val system: ActorSystem = ActorSystem("server-request-tracing-spec", ConfigFactory.parseString(
"""
|kamon {
| metrics {
| tick-interval = 1 second
|
| filters = [
| {
| trace {
| includes = [ "*" ]
| excludes = []
| }
| }
| ]
| }
|}
""".stripMargin))
implicit def ec = system.dispatcher
"the client instrumentation" should {
"record the elapsed time for a http request when using the Http manager directly and tag it as SprayTime" in {
val metricListener = TestProbe()
Kamon(Metrics)(system).subscribe(TraceMetrics, "*", metricListener.ref, permanently = true)
val (hostConnector, server) = buildSHostConnectorAndServer
val client = TestProbe()
// Initiate a request within the context of a trace
val testContext = TraceRecorder.withNewTraceContext("direct-to-http-manager-request") {
client.send(hostConnector, Get("/direct-to-http-manager-request"))
TraceRecorder.currentContext
}
// Accept the connection at the server side
server.expectMsgType[Http.Connected]
server.reply(Http.Register(server.ref))
// Receive the request and reply back
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "ok"))
client.expectMsgType[HttpResponse]
// Finish the trace
testContext.map(_.finish(Map.empty))
metricListener.fishForMessage() {
case snapshot @ TickMetricSnapshot(_, _, metrics) ⇒
metrics.filterKeys(_.name == "direct-to-http-manager-request").exists {
case (group, snapshot) ⇒
snapshot.metrics.filterKeys(id ⇒ id.name == "" && id.tag == ClientRequestInstrumentation.SprayTime).nonEmpty
}
case other ⇒ false
}
}
"record the elapsed time for a http request when using the pipelining sendReceive and tag it as UserTime" in {
val metricListener = TestProbe()
Kamon(Metrics)(system).subscribe(TraceMetrics, "*", metricListener.ref, permanently = true)
val (hostConnector, server) = buildSHostConnectorAndServer
val client = TestProbe()
val pipeline = pipelining.sendReceive(hostConnector)(system.dispatcher, 10 seconds)
// Initiate a request within the context of a trace
val testContext = TraceRecorder.withNewTraceContext("pipelining-helper-request") {
pipeline(Get("/pipelining-helper-request")) to client.ref
TraceRecorder.currentContext
}
// Accept the connection at the server side
server.expectMsgType[Http.Connected]
server.reply(Http.Register(server.ref))
// Receive the request and reply back
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "ok"))
client.expectMsgType[HttpResponse]
// Finish the trace
testContext.map(_.finish(Map.empty))
metricListener.fishForMessage() {
case snapshot @ TickMetricSnapshot(_, _, metrics) ⇒
metrics.filterKeys(_.name == "pipelining-helper-request").exists {
case (group, snapshot) ⇒
snapshot.metrics.filterKeys(id ⇒ id.name == "" && id.tag == ClientRequestInstrumentation.UserTime).nonEmpty
}
case other ⇒ false
}
}
}
}
|
