rename UOW to TraceToken and generate it by default when a Trace starts

1 files changed, 24 insertions, 0 deletions

diff --git a/kamon-core/src/main/scala/kamon/trace/logging/LogbackTraceTokenConverter.scala b/kamon-core/src/main/scala/kamon/trace/logging/LogbackTraceTokenConverter.scala
new file mode 100644
index 00000000..403e4ee7
--- /dev/null
+++ b/kamon-core/src/main/scala/kamon/trace/logging/LogbackTraceTokenConverter.scala
@@ -0,0 +1,24 @@
+/* ===================================================
+ * Copyright © 2013 the kamon project <http://kamon.io/>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ========================================================== */
+package kamon.trace.logging
+
+import ch.qos.logback.classic.pattern.ClassicConverter
+import ch.qos.logback.classic.spi.ILoggingEvent
+import kamon.trace.Trace
+
+class LogbackTraceTokenConverter extends ClassicConverter {
+  def convert(event: ILoggingEvent): String = Trace.context().map(_.token).getOrElse("undefined")
+}