X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSumBusinessLogic.java;h=f7bf09f683437383f8d3391ba52d175848b201cb;hb=83687565029b7fa3b8707f172b5e53b58fc5bcba;hp=73db4cff6ac96dd4a887c773d999f82e4c010597;hpb=5592437b9ad0caa7c9dd28b6248cc786fae625d3;p=demos%2Fkafka%2Ftraining

diff --git a/src/main/java/de/juplo/kafka/SumBusinessLogic.java b/src/main/java/de/juplo/kafka/SumBusinessLogic.java
index 73db4cf..f7bf09f 100644
--- a/src/main/java/de/juplo/kafka/SumBusinessLogic.java
+++ b/src/main/java/de/juplo/kafka/SumBusinessLogic.java
@@ -34,8 +34,15 @@ public class SumBusinessLogic
     return Optional.ofNullable(state.get(user));
   }
 
+  public synchronized void addToSum(String user, Integer value)
+  {
+  }
+
   public synchronized Long endSum(String user)
   {
-    return null;
+    if (!state.containsKey(user))
+      throw new IllegalStateException("No sumation for " + user + " in progress");
+
+    return state.get(user);
   }
 }