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author | Ivan Topolnjak <ivantopo@gmail.com> | 2014-03-24 12:42:18 -0300 |
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committer | Ivan Topolnjak <ivantopo@gmail.com> | 2014-03-24 12:42:18 -0300 |
commit | 8ed58faae77db3773ded06ccb8e8529cfb9031d6 (patch) | |
tree | 80a511fc42d81e21c17bdd919e4700953c8a0714 /kamon-spray/src/test/scala/kamon/spray/ClientRequestInstrumentationSpec.scala | |
parent | 1b7442f20d65e4a4b43b995acf8a7af538714913 (diff) | |
download | Kamon-8ed58faae77db3773ded06ccb8e8529cfb9031d6.tar.gz Kamon-8ed58faae77db3773ded06ccb8e8529cfb9031d6.tar.bz2 Kamon-8ed58faae77db3773ded06ccb8e8529cfb9031d6.zip |
complete automatic trace token propagation for spray-client, closes #14
Diffstat (limited to 'kamon-spray/src/test/scala/kamon/spray/ClientRequestInstrumentationSpec.scala')
-rw-r--r-- | kamon-spray/src/test/scala/kamon/spray/ClientRequestInstrumentationSpec.scala | 251 |
1 files changed, 183 insertions, 68 deletions
diff --git a/kamon-spray/src/test/scala/kamon/spray/ClientRequestInstrumentationSpec.scala b/kamon-spray/src/test/scala/kamon/spray/ClientRequestInstrumentationSpec.scala index 0b1db1b7..9469924a 100644 --- a/kamon-spray/src/test/scala/kamon/spray/ClientRequestInstrumentationSpec.scala +++ b/kamon-spray/src/test/scala/kamon/spray/ClientRequestInstrumentationSpec.scala @@ -1,27 +1,49 @@ +/* + * ========================================================================================= + * Copyright © 2013 the kamon project <http://kamon.io/> + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the + * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, + * either express or implied. See the License for the specific language governing permissions + * and limitations under the License. + * ========================================================================================= + */ + package kamon.spray import akka.testkit.{ TestKitBase, TestProbe } import akka.actor.ActorSystem -import org.scalatest.WordSpecLike +import org.scalatest.{ Matchers, 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.http.HttpHeaders.RawHeader +import kamon.Kamon +import kamon.metrics.{ TraceMetrics, Metrics } import spray.client.pipelining +import kamon.metrics.Subscriptions.TickMetricSnapshot +import spray.can.client.ClientRequestInstrumentation import scala.concurrent.duration._ +import akka.pattern.pipe +import kamon.metrics.TraceMetrics.TraceMetricSnapshot -class ClientRequestInstrumentationSpec extends TestKitBase with WordSpecLike with RequestBuilding with TestServer { - implicit lazy val system: ActorSystem = ActorSystem("server-request-tracing-spec", ConfigFactory.parseString( +class ClientRequestInstrumentationSpec extends TestKitBase with WordSpecLike with Matchers with RequestBuilding with TestServer { + implicit lazy val system: ActorSystem = ActorSystem("client-request-instrumentation-spec", ConfigFactory.parseString( """ + |akka { + | loglevel = ERROR + |} + | |kamon { | metrics { - | tick-interval = 1 second + | tick-interval = 2 seconds | | filters = [ | { @@ -37,79 +59,172 @@ class ClientRequestInstrumentationSpec extends TestKitBase with WordSpecLike wit 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 { + "the client instrumentation" when { + "configured to do automatic-trace-token-propagation" should { + "include the trace token header on spray-client requests" in { + enableAutomaticTraceTokenPropagation() - val metricListener = TestProbe() - Kamon(Metrics)(system).subscribe(TraceMetrics, "*", metricListener.ref, permanently = true) + val (hostConnector, server) = buildSHostConnectorAndServer + val client = TestProbe() - val (hostConnector, server) = buildSHostConnectorAndServer - val client = TestProbe() + // Initiate a request within the context of a trace + val testContext = TraceRecorder.withNewTraceContext("include-trace-token-header-on-http-client-request") { + client.send(hostConnector, Get("/dummy-path")) + TraceRecorder.currentContext + } - // 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 + val request = server.expectMsgType[HttpRequest] + request.headers should contain(RawHeader(Kamon(Spray).traceTokenHeaderName, testContext.get.token)) - // 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 + // Finish the request cycle, just to avoid error messages on the logs. + server.reply(HttpResponse(entity = "ok")) + client.expectMsgType[HttpResponse] + testContext.map(_.finish(Map.empty)) } } - "record the elapsed time for a http request when using the pipelining sendReceive and tag it as UserTime" in { + "not configured to do automatic-trace-token-propagation" should { + "not include the trace token header on spray-client requests" in { + disableAutomaticTraceTokenPropagation() - val metricListener = TestProbe() - Kamon(Metrics)(system).subscribe(TraceMetrics, "*", metricListener.ref, permanently = true) + val (hostConnector, server) = buildSHostConnectorAndServer + val client = TestProbe() - 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("not-include-trace-token-header-on-http-client-request") { + client.send(hostConnector, Get("/dummy-path")) + TraceRecorder.currentContext + } - // 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 + val request = server.expectMsgType[HttpRequest] + request.headers should not contain (RawHeader(Kamon(Spray).traceTokenHeaderName, testContext.get.token)) + + // Finish the request cycle, just to avoid error messages on the logs. + server.reply(HttpResponse(entity = "ok")) + client.expectMsgType[HttpResponse] + testContext.map(_.finish(Map.empty)) } + } - // 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 + "configured to use pipelining segment collection strategy" should { + "open a segment when sendReceive is called and close it when the resulting Future[HttpResponse] is completed" in { + enablePipeliningSegmentCollectionStrategy() + + val (hostConnector, server) = buildSHostConnectorAndServer + val client = TestProbe() + val pipeline = pipelining.sendReceive(hostConnector)(system.dispatcher, 3 seconds) + + val metricListener = TestProbe() + Kamon(Metrics)(system).subscribe(TraceMetrics, "*", metricListener.ref, permanently = true) + metricListener.expectMsgType[TickMetricSnapshot] + + // Initiate a request within the context of a trace + val testContext = TraceRecorder.withNewTraceContext("pipelining-strategy-client-request") { + pipeline(Get("/dummy-path")) 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 + val req = server.expectMsgType[HttpRequest] + server.reply(HttpResponse(entity = "ok")) + client.expectMsgType[HttpResponse] + + // Finish the trace + testContext.map(_.finish(Map.empty)) + + val traceMetrics = expectTraceMetrics("pipelining-strategy-client-request", metricListener, 3 seconds) + traceMetrics.elapsedTime.numberOfMeasurements should be(1L) + traceMetrics.segments should not be empty + val recordedSegment = traceMetrics.segments.find { case (k, v) ⇒ k.tag == ClientRequestInstrumentation.UserTime } map (_._2) + recordedSegment should not be empty + recordedSegment map { segmentMetrics ⇒ + segmentMetrics.numberOfMeasurements should be(1L) + } } } + + "configured to use internal segment collection strategy" should { + "open a segment upon reception of a request by the HttpHostConnector and close it when sending the response" in { + enableInternalSegmentCollectionStrategy() + + val (hostConnector, server) = buildSHostConnectorAndServer + val client = TestProbe() + val pipeline = pipelining.sendReceive(hostConnector)(system.dispatcher, 3 seconds) + + val metricListener = TestProbe() + Kamon(Metrics)(system).subscribe(TraceMetrics, "*", metricListener.ref, permanently = true) + metricListener.expectMsgType[TickMetricSnapshot] + + // Initiate a request within the context of a trace + val testContext = TraceRecorder.withNewTraceContext("internal-strategy-client-request") { + pipeline(Get("/dummy-path")) 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)) + + val traceMetrics = expectTraceMetrics("internal-strategy-client-request", metricListener, 3 seconds) + traceMetrics.elapsedTime.numberOfMeasurements should be(1L) + traceMetrics.segments should not be empty + val recordedSegment = traceMetrics.segments.find { case (k, v) ⇒ k.tag == ClientRequestInstrumentation.SprayTime } map (_._2) + recordedSegment should not be empty + recordedSegment map { segmentMetrics ⇒ + segmentMetrics.numberOfMeasurements should be(1L) + } + } + } + } + + def expectTraceMetrics(traceName: String, listener: TestProbe, timeout: FiniteDuration): TraceMetricSnapshot = { + val tickSnapshot = within(timeout) { + listener.expectMsgType[TickMetricSnapshot] + } + + val metricsOption = tickSnapshot.metrics.get(TraceMetrics(traceName)) + metricsOption should not be empty + metricsOption.get.asInstanceOf[TraceMetricSnapshot] } + def enableInternalSegmentCollectionStrategy(): Unit = setSegmentCollectionStrategy(ClientSegmentCollectionStrategy.Internal) + def enablePipeliningSegmentCollectionStrategy(): Unit = setSegmentCollectionStrategy(ClientSegmentCollectionStrategy.Pipelining) + def enableAutomaticTraceTokenPropagation(): Unit = setIncludeTraceToken(true) + def disableAutomaticTraceTokenPropagation(): Unit = setIncludeTraceToken(false) + + def setSegmentCollectionStrategy(strategy: ClientSegmentCollectionStrategy.Strategy): Unit = { + val target = Kamon(Spray)(system) + val field = target.getClass.getDeclaredField("clientSegmentCollectionStrategy") + field.setAccessible(true) + field.set(target, strategy) + } + + def setIncludeTraceToken(include: Boolean): Unit = { + val target = Kamon(Spray)(system) + val field = target.getClass.getDeclaredField("includeTraceToken") + field.setAccessible(true) + field.set(target, include) + } } |