1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/* ===================================================
* 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.instrumentation.akka
import akka.actor.{ Actor, ActorSystem, Props }
import akka.pattern.{ ask, pipe }
import akka.routing._
import akka.testkit.{ TestKitBase, ImplicitSender, TestKit }
import akka.util.Timeout
import com.typesafe.config.ConfigFactory
import kamon.trace.TraceRecorder
import org.scalatest.{ BeforeAndAfterAll, WordSpecLike }
import scala.concurrent.duration._
class ActorCellInstrumentationSpec extends TestKitBase with WordSpecLike with ImplicitSender with BeforeAndAfterAll {
implicit lazy val system: ActorSystem = ActorSystem("actor-cell-instrumentation-spec")
implicit val executionContext = system.dispatcher
"the message passing instrumentation" should {
"propagate the TraceContext using bang" in new EchoActorFixture {
val testTraceContext = TraceRecorder.withNewTraceContext("bang-reply") {
ctxEchoActor ! "test"
TraceRecorder.currentContext
}
expectMsg(testTraceContext)
}
"propagate the TraceContext using tell" in new EchoActorFixture {
val testTraceContext = TraceRecorder.withNewTraceContext("tell-reply") {
ctxEchoActor.tell("test", testActor)
TraceRecorder.currentContext
}
expectMsg(testTraceContext)
}
"propagate the TraceContext using ask" in new EchoActorFixture {
implicit val timeout = Timeout(1 seconds)
val testTraceContext = TraceRecorder.withNewTraceContext("ask-reply") {
// The pipe pattern use Futures internally, so FutureTracing test should cover the underpinnings of it.
(ctxEchoActor ? "test") pipeTo (testActor)
TraceRecorder.currentContext
}
expectMsg(testTraceContext)
}
"propagate the TraceContext to actors behind a simple router" in new EchoSimpleRouterFixture {
val testTraceContext = TraceRecorder.withNewTraceContext("router-reply") {
router.route("test", testActor)
TraceRecorder.currentContext
}
expectMsg(testTraceContext)
}
"propagate the TraceContext to actors behind a pool router" in new EchoPoolRouterFixture {
val testTraceContext = TraceRecorder.withNewTraceContext("router-reply") {
pool ! "test"
TraceRecorder.currentContext
}
expectMsg(testTraceContext)
}
"propagate the TraceContext to actors behind a group router" in new EchoGroupRouterFixture {
val testTraceContext = TraceRecorder.withNewTraceContext("router-reply") {
group ! "test"
TraceRecorder.currentContext
}
expectMsg(testTraceContext)
}
}
override protected def afterAll(): Unit = shutdown()
trait EchoActorFixture {
val ctxEchoActor = system.actorOf(Props[TraceContextEcho])
}
trait EchoSimpleRouterFixture {
val router = {
val routees = Vector.fill(5) {
val r = system.actorOf(Props[TraceContextEcho])
ActorRefRoutee(r)
}
Router(RoundRobinRoutingLogic(), routees)
}
}
trait EchoPoolRouterFixture {
val pool = system.actorOf(RoundRobinPool(nrOfInstances = 5).props(Props[TraceContextEcho]), "pool-router")
}
trait EchoGroupRouterFixture {
val routees = Vector.fill(5) {
system.actorOf(Props[TraceContextEcho])
}
val group = system.actorOf(RoundRobinGroup(routees.map(_.path.toStringWithoutAddress)).props(), "group-router")
}
}
class TraceContextEcho extends Actor {
def receive = {
case msg: String ⇒ sender ! TraceRecorder.currentContext
}
}
|
