WIP:mongodb map vs subscribe - subscribe rausgezogen

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / implementation / StorageStrategy.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/implementation/StorageStrategy.java b/src/main/java/de/juplo/kafka/chat/backend/implementation/StorageStrategy.java
index 019db65..990d001 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/implementation/StorageStrategy.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/implementation/StorageStrategy.java
@@ -16,20 +16,20 @@ public interface StorageStrategy
 {
   Logger log = LoggerFactory.getLogger(StorageStrategy.class.getCanonicalName());
 
-  default void write(ChatHomeService chatHomeService)
+  default Flux<ChatRoomInfo> write(ChatHomeService chatHomeService)
   {
-    write(
+    return write(
         chatHomeService,
         this::logSuccessChatHomeService,
         this::logFailureChatHomeService);
   }
 
-  default void write(
+  default Flux<ChatRoomInfo> write(
       ChatHomeService chatHomeService,
       ChatHomeServiceWrittenSuccessCallback successCallback,
       ChatHomeServiceWrittenFailureCallback failureCallback)
   {
-    writeChatRoomInfo(
+    return writeChatRoomInfo(
         chatHomeService
             .getChatRoomInfo()
             .doOnComplete(() -> successCallback.accept(chatHomeService))
@@ -40,25 +40,26 @@ public interface StorageStrategy
                     chatHomeService
                         .getChatRoomData(chatRoomInfo.getId())
                         .flatMapMany(chatRoomData -> chatRoomData.getMessages()),
+
                     this::logSuccessChatRoom,
-                    this::logFailureChatRoom)));
+                    this::logFailureChatRoom).subscribe()));
   }
 
-  void writeChatRoomInfo(Flux<ChatRoomInfo> chatRoomInfoFlux);
+  Flux<ChatRoomInfo> writeChatRoomInfo(Flux<ChatRoomInfo> chatRoomInfoFlux);
   Flux<ChatRoomInfo> readChatRoomInfo();
-  default void writeChatRoomData(
+  default Flux<Message> writeChatRoomData(
       UUID chatRoomId,
       Flux<Message> messageFlux,
       ChatRoomWrittenSuccessCallback successCallback,
       ChatRoomWrittenFailureCallback failureCallback)
   {
-    writeChatRoomData(
+    return writeChatRoomData(
         chatRoomId,
         messageFlux
             .doOnComplete(() -> successCallback.accept(chatRoomId))
             .doOnError(throwable -> failureCallback.accept(chatRoomId, throwable)));
   }
-  void writeChatRoomData(UUID chatRoomId, Flux<Message> messageFlux);
+  Flux<Message> writeChatRoomData(UUID chatRoomId, Flux<Message> messageFlux);
   Flux<Message> readChatRoomData(UUID chatRoomId);
 
   interface ChatHomeServiceWrittenSuccessCallback extends Consumer<ChatHomeService> {}