diff options
Diffstat (limited to 'kamon-spray/src/main/scala/kamon/spray')
-rw-r--r-- | kamon-spray/src/main/scala/kamon/spray/UowDirectives.scala | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/kamon-spray/src/main/scala/kamon/spray/UowDirectives.scala b/kamon-spray/src/main/scala/kamon/spray/UowDirectives.scala new file mode 100644 index 00000000..6f913a67 --- /dev/null +++ b/kamon-spray/src/main/scala/kamon/spray/UowDirectives.scala @@ -0,0 +1,27 @@ +package kamon.spray + +import spray.routing.directives.BasicDirectives +import spray.routing._ +import java.util.concurrent.atomic.AtomicLong +import scala.util.Try +import java.net.InetAddress +import kamon.trace.Trace + +trait UowDirectives extends BasicDirectives { + def uow: Directive0 = mapRequest { request => + val uowHeader = request.headers.find(_.name == "X-UOW") + + val generatedUow = uowHeader.map(_.value).getOrElse(UowDirectives.newUow) + // TODO: Tracer will always have a context at this point, just rename the uow. + //Tracer.set(Tracer.context().getOrElse(Tracer.newTraceContext()).copy(uow = generatedUow)) + + request + } +} + +object UowDirectives { + val uowCounter = new AtomicLong + val hostnamePrefix = Try(InetAddress.getLocalHost.getHostName).getOrElse("unknown-localhost") + def newUow = "%s-%s".format(hostnamePrefix, uowCounter.incrementAndGet()) + +}
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