Vorlage für den 1. Teil der Summenformel-Übung

[demos/kafka/training] / src / main / java / de / juplo / kafka / ApplicationRecordHandler.java

diff --git a/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java b/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java
index 51d524f..e5e40ed 100644 (file)
--- a/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java
+++ b/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java
@@ -28,6 +28,9 @@ public class ApplicationRecordHandler implements RecordHandler<String, String>
     String user = record.key();
     String message = record.value();
 
+    if (!state.containsKey(partition))
+      state.put(partition, new AdderBusinessLogic());
+
     if (message.equals("CALCULATE"))
     {
       AdderResult result = state.get(partition).calculate(user);