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/*
* =========================================================================================
* Copyright © 2013-2015 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.spm
import java.net.InetAddress
import java.util.concurrent.TimeUnit
import akka.actor._
import akka.event.Logging
import akka.io.IO
import akka.util.Timeout
import kamon.Kamon
import kamon.util.ConfigTools.Syntax
import spray.can.Http
import scala.concurrent.duration._
import scala.collection.JavaConverters._
object SPM extends ExtensionId[SPMExtension] with ExtensionIdProvider {
override def createExtension(system: ExtendedActorSystem): SPMExtension = new SPMExtension(system)
override def lookup(): ExtensionId[_ <: Extension] = SPM
}
class SPMExtension(system: ExtendedActorSystem) extends Kamon.Extension {
implicit val s: ActorSystem = system
val log = Logging(system, classOf[SPMExtension])
log.info("Starting kamon-spm extension.")
val config = system.settings.config.getConfig("kamon.spm")
val maxQueueSize = config.getInt("max-queue-size")
val retryInterval: FiniteDuration = config.getDuration("retry-interval", TimeUnit.MILLISECONDS) millis
val sendTimeout: FiniteDuration = config.getDuration("send-timeout", TimeUnit.MILLISECONDS) millis
val url = config.getString("receiver-url")
val token = config.getString("token")
val hostname = if (config.hasPath("hostname-alias")) {
config.getString("hostname-alias")
} else {
InetAddress.getLocalHost.getHostName
}
val subscriptionsConf = config.getConfig("subscriptions")
val subscriptions = subscriptionsConf.firstLevelKeys.flatMap { category ⇒
subscriptionsConf.getStringList(category).asScala.map { pattern ⇒
category -> pattern
}
}.toList
val sender = system.actorOf(SPMMetricsSender.props(IO(Http), retryInterval, Timeout(sendTimeout), maxQueueSize, url, hostname, token), "spm-metrics-sender")
var subscriber = system.actorOf(SPMMetricsSubscriber.props(sender, 50 seconds, subscriptions), "spm-metrics-subscriber")
log.info(s"kamon-spm extension started. Hostname = ${hostname}, url = ${url}.")
}
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