X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSumRecordHandler.java;h=b0fd27bfde983a83c94ac52fca894289331e7c98;hb=43be1c56d6205a70bc2740ef105f329d5e7461cc;hp=82ada38855856f66d3381a8ff8ab135aea031fd6;hpb=c808810e9e33afe33b29f7fd3921023ecd15483d;p=demos%2Fkafka%2Ftraining

diff --git a/src/main/java/de/juplo/kafka/SumRecordHandler.java b/src/main/java/de/juplo/kafka/SumRecordHandler.java
index 82ada38..b0fd27b 100644
--- a/src/main/java/de/juplo/kafka/SumRecordHandler.java
+++ b/src/main/java/de/juplo/kafka/SumRecordHandler.java
@@ -4,17 +4,15 @@ import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
 
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
-import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 
 @Slf4j
 public class SumRecordHandler implements RecordHandler<String, String>
 {
-  final static Pattern PATTERN = Pattern.compile("\\W+");
-
-
-  private final Map<Integer, Map<String, Map<String, Long>>> seen = new HashMap<>();
+  private final Map<Integer, SumBusinessLogic> state = new HashMap<>();
 
 
   @Override
@@ -22,43 +20,37 @@ public class SumRecordHandler implements RecordHandler<String, String>
   {
     Integer partition = record.partition();
     String user = record.key();
-    Map<String, Map<String, Long>> users = seen.get(partition);
-
-    Map<String, Long> words = users.get(user);
-    if (words == null)
-    {
-      words = new HashMap<>();
-      users.put(user, words);
-    }
-
-    for (String word : PATTERN.split(record.value()))
+    String message = record.value();
+    switch (message)
     {
-      Long num = words.get(word);
-      if (num == null)
-      {
-        num = 1l;
-      }
-      else
-      {
-        num++;
-      }
-      words.put(word, num);
+      case "START":
+        state.get(partition).startSum(user);
+        break;
+
+      case "END":
+        Long result = state.get(partition).endSum(user);
+        log.info("New result for {}: {}", user, result);
+        break;
+
+      default:
+        state.get(partition).addToSum(user, Integer.parseInt(message));
+        break;
     }
   }
 
-  public void addPartition(Integer partition, Map<String, Map<String, Long>> statistics)
+  protected void addPartition(Integer partition, Map<String, Long> state)
   {
-    seen.put(partition, statistics);
+    this.state.put(partition, new SumBusinessLogic(state));
   }
 
-  public Map<String, Map<String, Long>> removePartition(Integer partition)
+  protected Map<String, Long> removePartition(Integer partition)
   {
-    return seen.remove(partition);
+    return this.state.remove(partition).getState();
   }
 
 
-  public Map<Integer, Map<String, Map<String, Long>>> getSeen()
+  public Map<Integer, SumBusinessLogic> getState()
   {
-    return seen;
+    return state;
   }
 }