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package kamon.trace
import kamon.Kamon
import scala.util.DynamicVariable
import akka.actor._
import scala.Some
import kamon.trace.Trace.Register
import scala.concurrent.duration._
object Trace extends ExtensionId[TraceExtension] with ExtensionIdProvider {
def lookup(): ExtensionId[_ <: Extension] = Trace
def createExtension(system: ExtendedActorSystem): TraceExtension = new TraceExtension(system)
/*** Protocol */
case object Register
}
class TraceExtension(system: ExtendedActorSystem) extends Kamon.Extension {
def manager: ActorRef = ???
}
class TraceManager extends Actor {
var listeners: Seq[ActorRef] = Seq.empty
def receive = {
case Register => listeners = sender +: listeners
case segment: UowSegment =>
context.child(segment.id.toString) match {
case Some(agreggator) => agreggator ! segment
case None => context.actorOf(UowTraceAggregator.props(self, 30 seconds))
}
case trace: UowTrace =>
listeners foreach(_ ! trace)
}
}
object Tracer {
val traceContext = new DynamicVariable[Option[TraceContext]](None)
def context() = traceContext.value
def set(ctx: TraceContext) = traceContext.value = Some(ctx)
def start = set(newTraceContext)
def newTraceContext(): TraceContext = TraceContext()(Kamon.actorSystem)
}
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