WIP

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / persistence / inmemory / ShardedChatHome.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/ShardedChatHome.java b/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/ShardedChatHome.java
index 6d2f079..ab3969f 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/ShardedChatHome.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/ShardedChatHome.java
@@ -1,5 +1,9 @@
-package de.juplo.kafka.chat.backend.domain;
+package de.juplo.kafka.chat.backend.persistence.inmemory;
 
+import de.juplo.kafka.chat.backend.domain.ChatHome;
+import de.juplo.kafka.chat.backend.domain.ChatRoom;
+import de.juplo.kafka.chat.backend.domain.ShardNotOwnedException;
+import de.juplo.kafka.chat.backend.domain.UnknownChatroomException;
 import lombok.extern.slf4j.Slf4j;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
@@ -41,9 +45,13 @@ public class ShardedChatHome implements ChatHome
   public Mono<ChatRoom> getChatRoom(UUID id)
   {
     int shard = selectShard(id);
-    if (chatHomes[shard] == null)
-      throw new ShardNotOwnedException(shard);
-    return chatHomes[shard].getChatRoom(id);
+    return chatHomes[shard] == null
+        ? Mono.error(new ShardNotOwnedException(shard))
+        : chatHomes[shard]
+            .getChatRoom(id)
+            .onErrorMap(throwable -> throwable instanceof UnknownChatroomException
+            ? Mono.error(new UnknownChatroomException(id, shard, ownedShards))
+            : Mono.error(throwable));
   }
 
   @Override