From 20f9920d4704e28ee8aa066d151b522c0d14e166 Mon Sep 17 00:00:00 2001 From: Ivan Topolnak Date: Fri, 4 Oct 2013 16:12:29 -0300 Subject: Simplify logging instrumentation and integrate it with kamon-core, kamon-ouw is gone. --- .../src/main/scala/kamon/trace/UowDirectives.scala | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 kamon-core/src/main/scala/kamon/trace/UowDirectives.scala (limited to 'kamon-core/src/main/scala/kamon/trace') diff --git a/kamon-core/src/main/scala/kamon/trace/UowDirectives.scala b/kamon-core/src/main/scala/kamon/trace/UowDirectives.scala new file mode 100644 index 00000000..392f53b8 --- /dev/null +++ b/kamon-core/src/main/scala/kamon/trace/UowDirectives.scala @@ -0,0 +1,28 @@ +package kamon.trace + +import spray.routing.directives.BasicDirectives +import spray.routing._ +import kamon.Tracer +import java.util.concurrent.atomic.AtomicLong +import scala.util.Try +import java.net.InetAddress + +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) + 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()) + +} \ No newline at end of file -- cgit v1.2.3