ROT: Erwartungen an SumBusinessLogic.addToSum(String, Integer)

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

diff --git a/src/main/java/de/juplo/kafka/SumBusinessLogic.java b/src/main/java/de/juplo/kafka/SumBusinessLogic.java
index 5cb906a..f7bf09f 100644 (file)
--- a/src/main/java/de/juplo/kafka/SumBusinessLogic.java
+++ b/src/main/java/de/juplo/kafka/SumBusinessLogic.java
@@ -31,6 +31,18 @@ public class SumBusinessLogic
 
   public synchronized Optional<Long> getSum(String user)
   {
-    return Optional.empty();
+    return Optional.ofNullable(state.get(user));
+  }
+
+  public synchronized void addToSum(String user, Integer value)
+  {
+  }
+
+  public synchronized Long endSum(String user)
+  {
+    if (!state.containsKey(user))
+      throw new IllegalStateException("No sumation for " + user + " in progress");
+
+    return state.get(user);
   }
 }