X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fchat%2Fbackend%2Fimplementation%2FStorageStrategy.java;h=87208dce32132b4815368eddf68c1c864577f85c;hb=8300dcd98f681893a077051560151a8f1b94e38d;hp=2913efef8e3a3add93752a8b391d69b1883d93d5;hpb=c0b341d3e1ad8eb2ba374d4d21c127b701a726bd;p=demos%2Fkafka%2Fchat

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 2913efef..87208dce 100644
--- a/src/main/java/de/juplo/kafka/chat/backend/implementation/StorageStrategy.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/implementation/StorageStrategy.java
@@ -1,29 +1,40 @@
-package de.juplo.kafka.chat.backend.persistence;
+package de.juplo.kafka.chat.backend.implementation;
 
 import de.juplo.kafka.chat.backend.domain.ChatHomeService;
 import de.juplo.kafka.chat.backend.domain.ChatRoomInfo;
 import de.juplo.kafka.chat.backend.domain.Message;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
 
 import java.util.UUID;
 
 
 public interface StorageStrategy
 {
-  default void write(ChatHomeService chatHomeService)
+  Logger log = LoggerFactory.getLogger(StorageStrategy.class.getCanonicalName());
+
+  default Mono<Void> write(ChatHomeService chatHomeService)
   {
-    writeChatRoomInfo(
-        chatHomeService
-            .getChatRoomInfo()
-            .doOnNext(chatRoomInfo -> writeChatRoomData(
-                chatRoomInfo.getId(),
-                chatHomeService
-                    .getChatRoomData(chatRoomInfo.getId())
-                    .flatMapMany(chatRoomData -> chatRoomData.getMessages()))));
+    return writeChatRoomInfo(chatHomeService.getChatRoomInfo())
+        .flatMap(chatRoomInfo -> writeChatRoomData(
+            chatRoomInfo.getId(),
+            chatHomeService
+                .getChatRoomData(chatRoomInfo.getId())
+                .flatMapMany(chatRoomData -> chatRoomData.getMessages())
+            )
+            .count()
+            .doOnSuccess(count -> log.info("Stored {} messages for {}", count, chatRoomInfo))
+            .doOnError(throwable -> log.error("Could not store {}: {}", chatRoomInfo, throwable)))
+        .count()
+        .doOnSuccess(count -> log.info("Stored {} chat-rooms for {}", count, chatHomeService))
+        .doOnError(throwable -> log.error("Could not store {}: {}", chatHomeService, throwable))
+        .then();
   }
 
-  void writeChatRoomInfo(Flux<ChatRoomInfo> chatRoomInfoFlux);
+  Flux<ChatRoomInfo> writeChatRoomInfo(Flux<ChatRoomInfo> chatRoomInfoFlux);
   Flux<ChatRoomInfo> readChatRoomInfo();
-  void writeChatRoomData(UUID chatRoomId, Flux<Message> messageFlux);
+  Flux<Message> writeChatRoomData(UUID chatRoomId, Flux<Message> messageFlux);
   Flux<Message> readChatRoomData(UUID chatRoomId);
 }