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ROT: Zur Summe soll die Zahl ausgegeben werden - Logik + Test angepasst
[demos/kafka/training]
/
src
/
main
/
java
/
de
/
juplo
/
kafka
/
AdderBusinessLogic.java
diff --git
a/src/main/java/de/juplo/kafka/AdderBusinessLogic.java
b/src/main/java/de/juplo/kafka/AdderBusinessLogic.java
index
ecd9590
..
64fdb8c
100644
(file)
--- a/
src/main/java/de/juplo/kafka/AdderBusinessLogic.java
+++ b/
src/main/java/de/juplo/kafka/AdderBusinessLogic.java
@@
-29,21
+29,22
@@
public class AdderBusinessLogic
public synchronized void addToSum(String user, Integer value)
{
public synchronized void addToSum(String user, Integer value)
{
- if (!state.containsKey(user))
- throw new IllegalStateException("No sumation for " + user + " in progress");
if (value == null || value < 1)
throw new IllegalArgumentException("Not a positive number: " + value);
if (value == null || value < 1)
throw new IllegalArgumentException("Not a positive number: " + value);
- long result = state.get(user) + value;
- state.put(user, result);
+ long sum =
+ Optional
+ .ofNullable(state.get(user))
+ .orElse(0l);
+ state.put(user, sum + value);
}
}
- public synchronized
Long
calculate(String user)
+ public synchronized
AdderResult
calculate(String user)
{
if (!state.containsKey(user))
throw new IllegalStateException("No sumation for " + user + " in progress");
{
if (!state.containsKey(user))
throw new IllegalStateException("No sumation for " + user + " in progress");
- return
state.remove(user
);
+ return
new AdderResult(66, state.remove(user)
);
}
protected Map<String, Long> getState()
}
protected Map<String, Long> getState()