feat: The chats are stored as local json-files

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / domain / ChatHome.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/domain/ChatHome.java b/src/main/java/de/juplo/kafka/chat/backend/domain/ChatHome.java
index a75a9a1..2b5152c 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/domain/ChatHome.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/domain/ChatHome.java
@@ -8,7 +8,7 @@ import java.util.*;
 @RequiredArgsConstructor
 public class ChatHome
 {
-  private final Map<UUID, Chatroom> chatrooms = new HashMap<>();
+  private final Map<UUID, Chatroom> chatrooms;
   private final ChatroomFactory factory;
 
 
@@ -19,9 +19,9 @@ public class ChatHome
     return chatroom;
   }
 
-  public Chatroom getChatroom(UUID id)
+  public Optional<Chatroom> getChatroom(UUID id)
   {
-    return chatrooms.get(id);
+    return Optional.ofNullable(chatrooms.get(id));
   }
 
   public Collection<Chatroom> list()