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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/* ===================================================
* 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 test
import akka.actor._
import akka.routing.RoundRobinPool
import akka.util.Timeout
import kamon.Kamon
import kamon.metric.SubscriptionsDispatcher.TickMetricSnapshot
import kamon.metric._
import kamon.spray.KamonTraceDirectives
import kamon.trace.{ Tracer, TraceContext, SegmentCategory }
import spray.http.{ StatusCodes, Uri }
import spray.httpx.RequestBuilding
import spray.routing.SimpleRoutingApp
import scala.concurrent.{ Await, Future }
import scala.util.Random
object SimpleRequestProcessor extends App with SimpleRoutingApp with RequestBuilding with KamonTraceDirectives {
import akka.pattern.ask
import spray.client.pipelining._
import scala.concurrent.duration._
//Kamon.start()
implicit val system = ActorSystem("test")
import test.SimpleRequestProcessor.system.dispatcher
val printer = system.actorOf(Props[PrintWhatever])
val act = system.actorOf(Props(new Actor {
def receive: Actor.Receive = { case any ⇒ sender ! any }
}), "com")
implicit val timeout = Timeout(30 seconds)
val counter = Kamon.metrics.counter("requests")
val pipeline = sendReceive
val replier = system.actorOf(Props[Replier].withRouter(RoundRobinPool(nrOfInstances = 4)), "replier")
val random = new Random()
startServer(interface = "localhost", port = 9090) {
get {
path("test") {
traceName("test") {
complete {
val futures = pipeline(Get("http://10.254.209.14:8000/")).map(r ⇒ "Ok") :: pipeline(Get("http://10.254.209.14:8000/")).map(r ⇒ "Ok") :: Nil
Future.sequence(futures).map(l ⇒ "Ok")
}
}
} ~
path("site") {
traceName("FinalGetSite-3") {
complete {
for (
f1 ← pipeline(Get("http://127.0.0.1:9090/ok"));
f2 ← pipeline(Get("http://www.google.com/search?q=mkyong"))
) yield "Ok Double Future"
}
}
} ~
path("site-redirect") {
redirect(Uri("http://localhost:4000/"), StatusCodes.MovedPermanently)
} ~
path("reply" / Segment) { reqID ⇒
traceName("reply") {
complete {
(replier ? reqID).mapTo[String]
}
}
} ~
path("ok") {
traceName("RespondWithOK-3") {
complete {
"ok"
}
}
} ~
path("future") {
traceName("OKFuture") {
dynamic {
counter.increment()
complete(Future { "OK" })
}
}
} ~
path("kill") {
dynamic {
replier ! PoisonPill
complete(Future { "OK" })
}
} ~
path("error") {
complete {
throw new NullPointerException
"okk"
}
} ~
path("segment") {
complete {
val segment = Tracer.currentContext.startSegment("hello-world", SegmentCategory.HttpClient, "none")
(replier ? "hello").mapTo[String].onComplete { t ⇒
segment.finish()
}
"segment"
}
}
}
}
}
class PrintWhatever extends Actor {
def receive = {
case TickMetricSnapshot(from, to, metrics) ⇒
println(metrics.map { case (key, value) ⇒ key.name + " => " + value.metrics.mkString(",") }.mkString("|"))
case anything ⇒ println(anything)
}
}
object Verifier extends App {
def go: Unit = {
import spray.client.pipelining._
import scala.concurrent.duration._
implicit val system = ActorSystem("test")
import system.dispatcher
implicit val timeout = Timeout(30 seconds)
val pipeline = sendReceive
val futures = Future.sequence(for (i ← 1 to 500) yield {
pipeline(Get("http://127.0.0.1:9090/reply/" + i)).map(r ⇒ r.entity.asString == i.toString)
})
println("Everything is: " + Await.result(futures, 10 seconds).forall(a ⇒ a == true))
}
}
class Replier extends Actor with ActorLogging {
def receive = {
case anything ⇒
if (Tracer.currentContext.isEmpty)
log.warning("PROCESSING A MESSAGE WITHOUT CONTEXT")
//log.info("Processing at the Replier, and self is: {}", self)
sender ! anything
}
}
object PingPong extends App {
val system = ActorSystem()
val pinger = system.actorOf(Props(new Actor {
def receive: Actor.Receive = { case "pong" ⇒ sender ! "ping" }
}))
val ponger = system.actorOf(Props(new Actor {
def receive: Actor.Receive = { case "ping" ⇒ sender ! "pong" }
}))
//pinger.tell("pong", ponger)
}
|