ROT: Erwartungen an SumBusinessLogic.addToSum(String, Integer)
[demos/kafka/training] / src / main / java / de / juplo / kafka / SumBusinessLogic.java
index 73db4cf..f7bf09f 100644 (file)
@@ -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);
   }
 }