Change msg service: Acknowledge Response iff Backend Succeeds

- Before: Upon receipt of a message via the msg/ endpoint, MOA ZS
  would immediately acknowledge the receipt without verifying that the
  message was successfully processed by the backend.
- Now: MOA ZS receives a message via the msg/ endpoint, forwards it to
  the sinks, and acknowledges the receipt if and only if the
  processing succeeded.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/main/java/at/gv/egiz/moazs/service/MzsService.java b/src/main/java/at/gv/egiz/moazs/service/MzsService.java
index ee14af8..caaa251 100644
--- a/src/main/java/at/gv/egiz/moazs/service/MzsService.java
+++ b/src/main/java/at/gv/egiz/moazs/service/MzsService.java
@@ -142,7 +142,8 @@ public class MzsService implements App2MzsPortType {
 
         log.info(SERVICE_TIME_OUT_REACHED_MSG, appDeliveryID);
         var sinkParams = request.getConfig().getMsgResponseSinks();
-        requestProcessed.thenAcceptAsync(response -> hub.applySinks(response, sinkParams), taskExecutor);
+
+        requestProcessed.thenCompose(response -> hub.applySinks(response, sinkParams));
 
         return generatePartialSuccessResponse(appDeliveryID);
     }