1 files changed, 68 insertions, 0 deletions
diff --git a/kamon-spm/src/main/scala/kamon/spm/SPM.scala b/kamon-spm/src/main/scala/kamon/spm/SPM.scala
new file mode 100644
index 00000000..b8bb4eab
--- /dev/null
+++ b/kamon-spm/src/main/scala/kamon/spm/SPM.scala
@@ -0,0 +1,68 @@
+/*
+ * =========================================================================================
+ * 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}.")
+}