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Diffstat (limited to 'kamon-core/src/main/scala/kamon/trace/Tracer.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/trace/Tracer.scala | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/kamon-core/src/main/scala/kamon/trace/Tracer.scala b/kamon-core/src/main/scala/kamon/trace/Tracer.scala deleted file mode 100644 index 472c1d65..00000000 --- a/kamon-core/src/main/scala/kamon/trace/Tracer.scala +++ /dev/null @@ -1,132 +0,0 @@ -/* - * ========================================================================================= - * 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 kamon.trace - -import java.net.InetAddress -import java.util.concurrent.atomic.AtomicLong - -import akka.actor._ -import com.typesafe.config.Config -import kamon.metric.Metrics -import kamon.util._ - -import scala.util.Try - -trait Tracer { - 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 - - def subscribe(subscriber: ActorRef): Unit - def unsubscribe(subscriber: ActorRef): Unit -} - -object Tracer { - private[kamon] val _traceContextStorage = new ThreadLocal[TraceContext] { - override def initialValue(): TraceContext = EmptyTraceContext - } - - def currentContext: TraceContext = - _traceContextStorage.get() - - def setCurrentContext(context: TraceContext): Unit = - _traceContextStorage.set(context) - - def clearCurrentContext: Unit = - _traceContextStorage.remove() - - def withContext[T](context: TraceContext)(code: ⇒ T): T = { - val oldContext = _traceContextStorage.get() - _traceContextStorage.set(context) - - try code finally _traceContextStorage.set(oldContext) - } -} - -private[kamon] class TracerImpl(metricsExtension: Metrics, config: Config) extends Tracer { - private val _settings = TraceSettings(config) - private val _hostnamePrefix = Try(InetAddress.getLocalHost.getHostName).getOrElse("unknown-localhost") - private val _tokenCounter = new AtomicLong - - private val _subscriptions = new LazyActorRef - private val _incubator = new LazyActorRef - - private def newToken: String = - _hostnamePrefix + "-" + String.valueOf(_tokenCounter.incrementAndGet()) - - def newContext(name: String): TraceContext = - createTraceContext(name) - - def newContext(name: String, token: String): TraceContext = - createTraceContext(name, token) - - def newContext(name: String, token: String, timestamp: RelativeNanoTimestamp, isOpen: Boolean, isLocal: Boolean): TraceContext = - createTraceContext(name, token, timestamp, isOpen, isLocal) - - 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) - - if (_settings.levelOfDetail == LevelOfDetail.MetricsOnly || !isLocal) - newMetricsOnlyContext - else { - if (!_settings.sampler.shouldTrace) - newMetricsOnlyContext - else - new TracingContext(traceName, token, true, _settings.levelOfDetail, isLocal, startTimestamp, null, dispatchTracingContext) - } - } - - 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.tell(trace) - else - _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 TracerImpl { - - def apply(metricsExtension: Metrics, config: Config) = - new TracerImpl(metricsExtension, config) -} - -case class TraceInfo(name: String, token: String, timestamp: NanoTimestamp, elapsedTime: NanoInterval, metadata: Map[String, String], segments: List[SegmentInfo]) -case class SegmentInfo(name: String, category: String, library: String, timestamp: NanoTimestamp, elapsedTime: NanoInterval, metadata: Map[String, String])
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