WIP

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / persistence / kafka / KafkaChatHomeService.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHomeService.java b/src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHomeService.java
index 2e3b42f..a5d63fd 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHomeService.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHomeService.java
@@ -17,8 +17,7 @@ public class KafkaChatHomeService implements ChatHomeService, ConsumerRebalanceL
 {
   private final Consumer<String, MessageTo> consumer;
   private final String topic;
-  private final long[] offsets;
-  private final MessageHandler[] handlers;
+  // private final long[] offsets; Erst mal immer alles neu einlesen
   private final Map<UUID, ChatRoom>[] chatrooms;
 
 
@@ -30,13 +29,11 @@ public class KafkaChatHomeService implements ChatHomeService, ConsumerRebalanceL
     log.debug("Creating KafkaChatHomeService");
     this.consumer = consumer;
     this.topic = topic;
-    this.offsets = new long[numShards];
-    this.handlers = new MessageHandler[numShards];
-    for (int i=0; i< numShards; i++)
-    {
-      this.offsets[i] = 0l;
-      this.handlers[i] = new MessageHandler(consumer, new TopicPartition(topic, i));
-    }
+    // this.offsets = new long[numShards];
+    // for (int i=0; i< numShards; i++)
+    // {
+    //   this.offsets[i] = 0l;
+    // }
     this.chatrooms = new Map[numShards];
   }
 
@@ -53,9 +50,18 @@ public class KafkaChatHomeService implements ChatHomeService, ConsumerRebalanceL
       }
 
       int partition = tp.partition();
-      long unseenOffset = offsets[partition];
-
-      log.info("Reading partition {} from {} -> {}", partition, unseenOffset, currentOffset);
+      long unseenOffset = 0; // offsets[partition];
+
+      log.info(
+          "Loading messages from partition {}: start-offset={} -> current-offset={}",
+          partition,
+          unseenOffset,
+          currentOffset);
+
+      consumer.seek(tp, unseenOffset);
+      chatrooms[partition]
+          .values()
+          .stream()
       handlers[partition] = new ChatRoomLoadingMessageHandlingStrategy(tp, currentOffset, unseenOffset);
     });
   }