refactor: Added success- and failure-callbacks to `StorageStrategy`

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / storage / mongodb / MongoDbStorageStrategy.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/storage/mongodb/MongoDbStorageStrategy.java b/src/main/java/de/juplo/kafka/chat/backend/storage/mongodb/MongoDbStorageStrategy.java
index c87036c..972122e 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/storage/mongodb/MongoDbStorageStrategy.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/storage/mongodb/MongoDbStorageStrategy.java
@@ -36,26 +36,21 @@ public class MongoDbStorageStrategy implements StorageStrategy
         .map(chatRoomTo ->
         {
           UUID chatRoomId = UUID.fromString(chatRoomTo.getId());
-          int shard = shardingStrategy.selectShard(chatRoomId);
-
-          log.info(
-              "{} - old shard: {}, new shard:  {}",
-              chatRoomId,
-              chatRoomTo.getShard(),
-              shard);
-
-          return new ChatRoomInfo(
-              chatRoomId,
-              chatRoomTo.getName(),
-              shard);
+          return new ChatRoomInfo(chatRoomId, chatRoomTo.getName(), null);
         });
   }
 
   @Override
-  public void writeChatRoomData(UUID chatRoomId, Flux<Message> messageFlux)
+  public void writeChatRoomData(
+      UUID chatRoomId,
+      Flux<Message> messageFlux,
+      SuccessCallback successCallback,
+      FailureCallback failureCallback)
   {
     messageFlux
         .map(message -> MessageTo.from(chatRoomId, message))
+        .doOnComplete(() -> successCallback.accept(chatRoomId))
+        .doOnError(throwable -> failureCallback.accept(chatRoomId, throwable))
         .subscribe(messageTo -> messageRepository.save(messageTo));
   }