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author | Ivan Topolnjak <ivantopo@gmail.com> | 2015-02-12 11:30:06 +0100 |
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committer | Ivan Topolnjak <ivantopo@gmail.com> | 2015-02-13 05:15:30 +0100 |
commit | c6bb65535bcc3cc1ff3834a91473ee8dfa6145e8 (patch) | |
tree | d7dbe6a1007b168998f167ac74a98744542c6fa8 /kamon-core/src/main/scala/kamon/trace/TracerExtension.scala | |
parent | 6729c9632245328a007332cdcce7d362584d735a (diff) | |
download | Kamon-c6bb65535bcc3cc1ff3834a91473ee8dfa6145e8.tar.gz Kamon-c6bb65535bcc3cc1ff3834a91473ee8dfa6145e8.tar.bz2 Kamon-c6bb65535bcc3cc1ff3834a91473ee8dfa6145e8.zip |
! all: Kamon now works as a single instance in a companion object.
Diffstat (limited to 'kamon-core/src/main/scala/kamon/trace/TracerExtension.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/trace/TracerExtension.scala | 62 |
1 files changed, 39 insertions, 23 deletions
diff --git a/kamon-core/src/main/scala/kamon/trace/TracerExtension.scala b/kamon-core/src/main/scala/kamon/trace/TracerExtension.scala index 41dcd6bc..be565154 100644 --- a/kamon-core/src/main/scala/kamon/trace/TracerExtension.scala +++ b/kamon-core/src/main/scala/kamon/trace/TracerExtension.scala @@ -20,20 +20,13 @@ import java.net.InetAddress import java.util.concurrent.atomic.AtomicLong import akka.actor._ -import akka.actor -import kamon.Kamon -import kamon.metric.{ Metrics, MetricsExtension } -import kamon.util.{ NanoInterval, RelativeNanoTimestamp, NanoTimestamp, GlobPathFilter } +import com.typesafe.config.Config +import kamon.metric.MetricsExtension +import kamon.util._ import scala.util.Try -object Tracer extends ExtensionId[TracerExtension] with ExtensionIdProvider { - override def get(system: ActorSystem): TracerExtension = super.get(system) - def lookup(): ExtensionId[_ <: actor.Extension] = Tracer - def createExtension(system: ExtendedActorSystem): TracerExtension = new TracerExtensionImpl(system) -} - -trait TracerExtension extends Kamon.Extension { +trait TracerExtension { def newContext(name: String): TraceContext def newContext(name: String, token: String): TraceContext def newContext(name: String, token: String, timestamp: RelativeNanoTimestamp, isOpen: Boolean, isLocal: Boolean): TraceContext @@ -42,14 +35,13 @@ trait TracerExtension extends Kamon.Extension { def unsubscribe(subscriber: ActorRef): Unit } -class TracerExtensionImpl(system: ExtendedActorSystem) extends TracerExtension { - private val _settings = TraceSettings(system) - private val _metricsExtension = Metrics.get(system) - +private[kamon] class TracerExtensionImpl(metricsExtension: MetricsExtension, config: Config) extends TracerExtension { + private val _settings = TraceSettings(config) private val _hostnamePrefix = Try(InetAddress.getLocalHost.getHostName).getOrElse("unknown-localhost") private val _tokenCounter = new AtomicLong - private val _subscriptions = system.actorOf(Props[TraceSubscriptions], "trace-subscriptions") - private val _incubator = system.actorOf(Incubator.props(_subscriptions)) + + private val _subscriptions = new LazyActorRef + private val _incubator = new LazyActorRef private def newToken: String = _hostnamePrefix + "-" + String.valueOf(_tokenCounter.incrementAndGet()) @@ -66,7 +58,7 @@ class TracerExtensionImpl(system: ExtendedActorSystem) extends TracerExtension { private def createTraceContext(traceName: String, token: String = newToken, startTimestamp: RelativeNanoTimestamp = RelativeNanoTimestamp.now, isOpen: Boolean = true, isLocal: Boolean = true): TraceContext = { - def newMetricsOnlyContext = new MetricsOnlyContext(traceName, token, isOpen, _settings.levelOfDetail, startTimestamp, null, _metricsExtension, system) + def newMetricsOnlyContext = new MetricsOnlyContext(traceName, token, isOpen, _settings.levelOfDetail, startTimestamp, null, metricsExtension) if (_settings.levelOfDetail == LevelOfDetail.MetricsOnly || !isLocal) newMetricsOnlyContext @@ -74,20 +66,44 @@ class TracerExtensionImpl(system: ExtendedActorSystem) extends TracerExtension { if (!_settings.sampler.shouldTrace) newMetricsOnlyContext else - new TracingContext(traceName, token, true, _settings.levelOfDetail, isLocal, startTimestamp, null, _metricsExtension, this, system, dispatchTracingContext) + new TracingContext(traceName, token, true, _settings.levelOfDetail, isLocal, startTimestamp, null, metricsExtension, this, dispatchTracingContext) } } - def subscribe(subscriber: ActorRef): Unit = _subscriptions ! TraceSubscriptions.Subscribe(subscriber) - def unsubscribe(subscriber: ActorRef): Unit = _subscriptions ! TraceSubscriptions.Unsubscribe(subscriber) + def subscribe(subscriber: ActorRef): Unit = + _subscriptions.tell(TraceSubscriptions.Subscribe(subscriber)) + + def unsubscribe(subscriber: ActorRef): Unit = + _subscriptions.tell(TraceSubscriptions.Unsubscribe(subscriber)) private[kamon] def dispatchTracingContext(trace: TracingContext): Unit = if (_settings.sampler.shouldReport(trace.elapsedTime)) if (trace.shouldIncubate) - _incubator ! trace + _incubator.tell(trace) else - _subscriptions ! trace.generateTraceInfo + _subscriptions.tell(trace.generateTraceInfo) + + /** + * Tracer Extension initialization. + */ + private var _system: ActorSystem = null + private lazy val _start = { + val subscriptions = _system.actorOf(Props[TraceSubscriptions], "trace-subscriptions") + _subscriptions.point(subscriptions) + _incubator.point(_system.actorOf(Incubator.props(subscriptions))) + } + + def start(system: ActorSystem): Unit = synchronized { + _system = system + _start + _system = null + } +} + +private[kamon] object TracerExtensionImpl { + def apply(metricsExtension: MetricsExtension, config: Config) = + new TracerExtensionImpl(metricsExtension, config) } case class TraceInfo(name: String, token: String, timestamp: NanoTimestamp, elapsedTime: NanoInterval, metadata: Map[String, String], segments: List[SegmentInfo]) |