diff options
Diffstat (limited to 'kamon-core/src/main/scala/kamon/trace/Tracer.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/trace/Tracer.scala | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kamon-core/src/main/scala/kamon/trace/Tracer.scala b/kamon-core/src/main/scala/kamon/trace/Tracer.scala index 49ab518f..cf83b36b 100644 --- a/kamon-core/src/main/scala/kamon/trace/Tracer.scala +++ b/kamon-core/src/main/scala/kamon/trace/Tracer.scala @@ -35,6 +35,28 @@ trait Tracer { 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") |