X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.scl.runtime%2Fscl%2FLoggingMDC.scl;fp=bundles%2Forg.simantics.scl.runtime%2Fscl%2FLoggingMDC.scl;h=a8babda3513cc318149b90c979dcfc4a06cb7385;hp=0000000000000000000000000000000000000000;hb=9845a372968046da2f1e99a37ca550ce8f38fb31;hpb=1d887773b04e7fa984a2c3da4699faea17f9c872

diff --git a/bundles/org.simantics.scl.runtime/scl/LoggingMDC.scl b/bundles/org.simantics.scl.runtime/scl/LoggingMDC.scl
new file mode 100644
index 000000000..a8babda35
--- /dev/null
+++ b/bundles/org.simantics.scl.runtime/scl/LoggingMDC.scl
@@ -0,0 +1,19 @@
+include "LoggingJava"
+
+importJava "org.slf4j.MDC" where
+    get    :: String -> <Proc> Maybe String
+    put    :: String -> String -> <Proc> ()
+    remove :: String -> <Proc> ()
+
+putOrRemove :: String -> Maybe String -> <Proc> ()
+putOrRemove key (Just value) = put key value
+putOrRemove key Nothing      = remove key
+
+@inline
+withContext :: String -> String -> (<e> a) -> <e,Proc> a
+withContext key value procedure = result
+  where
+    oldValue = get key
+    put key value
+    result = procedure
+    putOrRemove key oldValue
\ No newline at end of file