Merge pull request #6 from jtjeferreira/master

add support for DoubleSizeIdentifier

project/build.properties

@@ -1 +1 @@
-sbt.version=0.13.17
+sbt.version=1.2.8

project/plugins.sbt

@@ -1,2 +1 @@
-lazy val root: Project = project.in(file(".")).dependsOn(latestSbtUmbrella)
-lazy val latestSbtUmbrella = uri("git://github.com/kamon-io/kamon-sbt-umbrella.git")
+lazy val root: Project = project in file(".") dependsOn(RootProject(uri("git://github.com/kamon-io/kamon-sbt-umbrella.git")))

src/main/scala/kamon/jaeger/JaegerReporter.scala

@@ -88,9 +88,10 @@ class JaegerClient(host: String,
     val duration =
       Math.floorDiv(Clock.nanosBetween(kamonSpan.from, kamonSpan.to), 1000)
 
+    val (traceIdHigh, traceIdLow) = convertDoubleSizeIdentifier(context.traceID)
     val convertedSpan = new JaegerSpan(
-      convertIdentifier(context.traceID),
-      0L,
+      traceIdLow,
+      traceIdHigh,
       convertIdentifier(context.spanID),
       convertIdentifier(context.parentID),
       kamonSpan.operationName,
@@ -136,4 +137,13 @@ class JaegerClient(host: String,
       // Assumes that Kamon was configured to use the default identity generator.
       ByteBuffer.wrap(identifier.bytes).getLong
     }.getOrElse(0L)
+
+  private def convertDoubleSizeIdentifier(
+      identifier: Identifier): (Long, Long) =
+    Try {
+      val buffer = ByteBuffer.wrap(identifier.bytes)
+      (buffer.getLong, buffer.getLong)
+    }.getOrElse {
+      (0L, convertIdentifier(identifier))
+    }
 }