X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FApplicationRecordHandler.java;h=28291579fd85c7efeb885344bce3e9c76fc13db1;hb=ce92719ebd18b3c34a3aa8ca60cf67f6c3fbd8b2;hp=d0d385ca9f3ed0f94da4a5af058f1da0adc8a19e;hpb=a2e8fc924e5b472d6b90c42d311514f91ea452f1;p=demos%2Fkafka%2Ftraining

diff --git a/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java b/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java
index d0d385c..2829157 100644
--- a/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java
+++ b/src/main/java/de/juplo/kafka/ApplicationRecordHandler.java
@@ -1,47 +1,81 @@
 package de.juplo.kafka;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
 
+import java.time.Duration;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Optional;
 
 
+@RequiredArgsConstructor
 @Slf4j
-public class ApplicationRecordHandler implements RecordHandler<String, String>
+public class ApplicationRecordHandler implements RecordHandler<String, Message>
 {
+  private final AdderResults results;
+  private final Optional<Duration> throttle;
+  private final String id;
+
   private final Map<Integer, AdderBusinessLogic> state = new HashMap<>();
 
 
+  public void addNumber(
+      Integer partition,
+      String user,
+      MessageAddNumber message)
+  {
+    state.get(partition).addToSum(user, message.getNext());
+  }
+
+  public void calculateSum(
+      Integer partition,
+      String user,
+      MessageCalculateSum message)
+  {
+    AdderResult result = state.get(partition).calculate(user);
+    log.info("{} - New result for {}: {}", id, user, result);
+    results.addResults(partition, user, result);
+  }
+
   @Override
-  public void accept(ConsumerRecord<String, String> record)
+  public void accept(ConsumerRecord<String, Message> record)
   {
     Integer partition = record.partition();
     String user = record.key();
-    String message = record.value();
-    switch (message)
+    Message message = record.value();
+
+    switch(message.getType())
     {
-      case "START":
-        state.get(partition).startSum(user);
+      case ADD:
+        addNumber(partition, user, (MessageAddNumber) message);
         break;
 
-      case "END":
-        Long result = state.get(partition).endSum(user);
-        log.info("New result for {}: {}", user, result);
+      case CALC:
+        calculateSum(partition, user, (MessageCalculateSum) message);
         break;
+    }
 
-      default:
-        state.get(partition).addToSum(user, Integer.parseInt(message));
-        break;
+    if (throttle.isPresent())
+    {
+      try
+      {
+        Thread.sleep(throttle.get().toMillis());
+      }
+      catch (InterruptedException e)
+      {
+        log.warn("{} - Intrerrupted while throttling: {}", id, e);
+      }
     }
   }
 
-  protected void addPartition(Integer partition, Map<String, Long> state)
+  protected void addPartition(Integer partition, Map<String, AdderResult> state)
   {
     this.state.put(partition, new AdderBusinessLogic(state));
   }
 
-  protected Map<String, Long> removePartition(Integer partition)
+  protected Map<String, AdderResult> removePartition(Integer partition)
   {
     return this.state.remove(partition).getState();
   }
@@ -51,4 +85,9 @@ public class ApplicationRecordHandler implements RecordHandler<String, String>
   {
     return state;
   }
+
+  public AdderBusinessLogic getState(Integer partition)
+  {
+    return state.get(partition);
+  }
 }