diff options
Diffstat (limited to 'src/main/scala/xyz/driver/pdsuicommon/concurrent/MdcThreadFactory.scala')
-rw-r--r-- | src/main/scala/xyz/driver/pdsuicommon/concurrent/MdcThreadFactory.scala | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/main/scala/xyz/driver/pdsuicommon/concurrent/MdcThreadFactory.scala b/src/main/scala/xyz/driver/pdsuicommon/concurrent/MdcThreadFactory.scala new file mode 100644 index 0000000..d1dc3ae --- /dev/null +++ b/src/main/scala/xyz/driver/pdsuicommon/concurrent/MdcThreadFactory.scala @@ -0,0 +1,33 @@ +package xyz.driver.pdsuicommon.concurrent + +import java.util.concurrent.ThreadFactory + +import org.slf4j.MDC + +object MdcThreadFactory { + def from(orig: ThreadFactory): ThreadFactory = new MdcThreadFactory(orig) +} + +class MdcThreadFactory(orig: ThreadFactory) extends ThreadFactory { + + override def newThread(runnable: Runnable): Thread = { + val parentMdcContext = MDC.getCopyOfContextMap + + orig.newThread(new Runnable { + def run(): Unit = { + val saveMdcContext = MDC.getCopyOfContextMap + setContextMap(parentMdcContext) + + try { + runnable.run() + } finally { + setContextMap(saveMdcContext) + } + } + }) + } + + private[this] def setContextMap(context: java.util.Map[String, String]): Unit = + Option(context).fold(MDC.clear())(MDC.setContextMap) + +} |