X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fchat%2Fbackend%2Fimplementation%2Finmemory%2FInMemoryChatMessageService.java;h=5d5feb87845cfbd536ff6f8364b87583b01d63cc;hb=4f2a6dfe5a1c620ad795328853c1be71a2581771;hp=a4fcec8cc05767d38e4b9050dfbfdf4db4648522;hpb=074ce6ddb63442bf4bacd76ecce4b095e0513e5a;p=demos%2Fkafka%2Fchat

diff --git a/src/main/java/de/juplo/kafka/chat/backend/implementation/inmemory/InMemoryChatMessageService.java b/src/main/java/de/juplo/kafka/chat/backend/implementation/inmemory/InMemoryChatMessageService.java
index a4fcec8c..5d5feb87 100644
--- a/src/main/java/de/juplo/kafka/chat/backend/implementation/inmemory/InMemoryChatMessageService.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/implementation/inmemory/InMemoryChatMessageService.java
@@ -1,26 +1,42 @@
 package de.juplo.kafka.chat.backend.implementation.inmemory;
 
+import de.juplo.kafka.chat.backend.domain.ChatMessageService;
 import de.juplo.kafka.chat.backend.domain.Message;
-import de.juplo.kafka.chat.backend.domain.ChatRoomService;
+import de.juplo.kafka.chat.backend.implementation.StorageStrategy;
 import lombok.extern.slf4j.Slf4j;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
 import java.time.LocalDateTime;
 import java.util.LinkedHashMap;
+import java.util.UUID;
 
 
 @Slf4j
-public class InMemoryChatRoomService implements ChatRoomService
+public class InMemoryChatMessageService implements ChatMessageService
 {
+  private final UUID chatRoomId;
   private final LinkedHashMap<Message.MessageKey, Message> messages;
 
 
-  public InMemoryChatRoomService(Flux<Message> messageFlux)
+  public InMemoryChatMessageService(UUID chatRoomId)
   {
-    log.debug("Creating InMemoryChatRoomService");
+    log.debug("Creating InMemoryChatMessageService");
+    this.chatRoomId = chatRoomId;
     messages = new LinkedHashMap<>();
-    messageFlux.subscribe(message -> messages.put(message.getKey(), message));
+  }
+
+
+  Mono<Void> restore(StorageStrategy storageStrategy)
+  {
+    Flux<Message> messageFlux = storageStrategy.readChatRoomData(chatRoomId);
+
+    return messageFlux
+        .doOnNext(message -> messages.put(message.getKey(), message))
+        .count()
+        .doOnSuccess(count -> log.info("Restored InMemoryChatMessageService with {} messages", count))
+        .doOnError(throwable -> log.error("Could not restore InMemoryChatMessageService"))
+        .then();
   }
 
   @Override