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|
/*
* =========================================================================================
* Copyright © 2013-2014 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.newrelic
import java.lang.management.ManagementFactory
import akka.actor.{ ActorRef, ActorSystem, Props }
import akka.io.IO
import akka.testkit._
import com.typesafe.config.ConfigFactory
import kamon.AkkaExtensionSwap
import org.scalatest.{ BeforeAndAfterAll, WordSpecLike }
import spray.can.Http
import spray.http._
import spray.httpx.encoding.Deflate
import spray.httpx.{ SprayJsonSupport, RequestBuilding }
import spray.json.JsArray
import spray.json._
class AgentSpec extends TestKitBase with WordSpecLike with BeforeAndAfterAll with RequestBuilding with SprayJsonSupport {
import JsonProtocol._
implicit lazy val system: ActorSystem = ActorSystem("Agent-Spec", ConfigFactory.parseString(
"""
|akka {
| loggers = ["akka.testkit.TestEventListener"]
| loglevel = "INFO"
|}
|kamon {
| newrelic {
| app-name = kamon
| license-key = 1111111111
| initialize-retry-delay = 1 second
| max-initialize-retries = 3
| }
|}
|
""".stripMargin))
"the New Relic Agent" should {
"try to establish a connection to the collector upon creation" in {
val httpManager = setHttpManager(TestProbe())
val agent = system.actorOf(Props[Agent])
// Request NR for a collector
httpManager.expectMsg(Deflate.encode {
Post(rawMethodUri("collector.newrelic.com", "get_redirect_host"), JsArray())
})
// Receive the assigned collector
httpManager.reply(jsonResponse(
"""
| {
| "return_value": "collector-8.newrelic.com"
| }
| """.stripMargin))
// Connect to the collector
val (host, pid) = getHostAndPid()
httpManager.expectMsg(Deflate.encode {
Post(rawMethodUri("collector-8.newrelic.com", "connect"),
s"""
| [
| {
| "agent_version": "3.1.0",
| "app_name": [ "kamon" ],
| "host": "$host",
| "identifier": "java:kamon",
| "language": "java",
| "pid": $pid
| }
| ]
""".stripMargin.parseJson)(sprayJsonMarshaller(JsValueFormat))
})
// Receive the runID
EventFilter.info(message = "Agent initialized with runID: [161221111] and collector: [collector-8.newrelic.com]", occurrences = 1).intercept {
httpManager.reply(jsonResponse(
"""
| {
| "return_value": {
| "agent_run_id": 161221111
| }
| }
| """.stripMargin))
}
}
"retry the connection in case it fails" in {
val httpManager = setHttpManager(TestProbe())
val agent = system.actorOf(Props[Agent])
// Request NR for a collector
val request = httpManager.expectMsg(Deflate.encode {
Post(rawMethodUri("collector.newrelic.com", "get_redirect_host"), JsArray())
})
// Fail the request.
EventFilter[RuntimeException](start = "Initialization failed, retrying in 1 seconds", occurrences = 1).intercept {
httpManager.reply(Timedout(request))
}
// Request NR for a collector, second attempt
httpManager.expectMsg(Deflate.encode {
Post(rawMethodUri("collector.newrelic.com", "get_redirect_host"), JsArray())
})
// Receive the assigned collector
httpManager.reply(jsonResponse(
"""
| {
| "return_value": "collector-8.newrelic.com"
| }
| """.stripMargin))
// Connect to the collector
val (host, pid) = getHostAndPid()
httpManager.expectMsg(Deflate.encode {
Post(rawMethodUri("collector-8.newrelic.com", "connect"),
s"""
| [
| {
| "agent_version": "3.1.0",
| "app_name": [ "kamon" ],
| "host": "$host",
| "identifier": "java:kamon",
| "language": "java",
| "pid": $pid
| }
| ]
""".stripMargin.parseJson)(sprayJsonMarshaller(JsValueFormat))
})
// Receive the runID
EventFilter.info(
message = "Agent initialized with runID: [161221112] and collector: [collector-8.newrelic.com]", occurrences = 1).intercept {
httpManager.reply(jsonResponse(
"""
| {
| "return_value": {
| "agent_run_id": 161221112
| }
| }
| """.stripMargin))
}
}
"give up the connection after max-initialize-retries" in {
val httpManager = setHttpManager(TestProbe())
val agent = system.actorOf(Props[Agent])
// First attempt and two retries
for (_ ← 1 to 3) {
// Request NR for a collector
val request = httpManager.expectMsg(Deflate.encode {
Post(rawMethodUri("collector.newrelic.com", "get_redirect_host"), JsArray())
})
// Fail the request.
EventFilter[RuntimeException](start = "Initialization failed, retrying in 1 seconds", occurrences = 1).intercept {
httpManager.reply(Timedout(request))
}
}
// Final retry. Request NR for a collector
val request = httpManager.expectMsg(Deflate.encode {
Post(rawMethodUri("collector.newrelic.com", "get_redirect_host"), JsArray())
})
// Give up on connecting.
EventFilter[RuntimeException](message = "Giving up while trying to set up a connection with the New Relic collector.", occurrences = 1).intercept {
httpManager.reply(Timedout(request))
}
}
}
def setHttpManager(probe: TestProbe): TestProbe = {
AkkaExtensionSwap.swap(system, Http, new IO.Extension {
def manager: ActorRef = probe.ref
})
probe
}
def rawMethodUri(host: String, methodName: String): Uri = {
Uri(s"http://$host/agent_listener/invoke_raw_method").withQuery(
"method" -> methodName,
"license_key" -> "1111111111",
"marshal_format" -> "json",
"protocol_version" -> "12")
}
def jsonResponse(json: String): HttpResponse = {
HttpResponse(entity = HttpEntity(ContentTypes.`application/json`, json))
}
def getHostAndPid(): (String, String) = {
val runtimeName = ManagementFactory.getRuntimeMXBean.getName.split('@')
(runtimeName(1), runtimeName(0))
}
implicit def JsValueFormat = new RootJsonFormat[JsValue] {
def write(value: JsValue) = value
def read(value: JsValue) = value
}
}
|
