Einfacher geht es nicht mehr

[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
deleted file mode 100644 (file)
index d525182..0000000
--- a/src/main/java/de/juplo/kafka/AdderBusinessLogic.java
+++ /dev/null
@@ -1,55 +0,0 @@
-package de.juplo.kafka;
-
-
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Optional;
-
-
-public class AdderBusinessLogic
-{
-  private final Map<String, AdderResult> state;
-
-
-  public AdderBusinessLogic()
-  {
-    this(new HashMap<>());
-  }
-
-  public AdderBusinessLogic(Map<String, AdderResult> state)
-  {
-    this.state = state;
-  }
-
-
-  public synchronized Optional<Long> getSum(String user)
-  {
-    return Optional.ofNullable(state.get(user)).map(result -> result.sum);
-  }
-
-  public synchronized void addToSum(String user, Integer value)
-  {
-    if (value == null || value < 1)
-      throw new IllegalArgumentException("Not a positive number: " + value);
-
-    long sum =
-        Optional
-            .ofNullable(state.get(user))
-            .map(result -> result.sum)
-            .orElse(0l);
-    state.put(user, new AdderResult(value, sum + value));
-  }
-
-  public synchronized AdderResult calculate(String user)
-  {
-    if (!state.containsKey(user))
-      throw new IllegalStateException("No sumation for " + user + " in progress");
-
-    return state.remove(user);
-  }
-
-  protected Map<String, AdderResult> getState()
-  {
-    return state;
-  }
-}