X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fchat%2Fbackend%2Fpersistence%2Fkafka%2FKafkaChatHomeService.java;h=a5d63fd8193ecaa5dbd1f0e8e63b0a6823bab8e5;hb=ffb82f75797ba93bc61c3de97d90611b21236038;hp=2e3b42f6f8693339481c8f1f8bbfaf5ef5223433;hpb=3921344eb0c5b56ed571175f5a5b0690b5aa1f85;p=demos%2Fkafka%2Fchat 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 2e3b42f6..a5d63fd8 100644 --- 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 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[] 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); }); }