WIP

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

diff --git a/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/SimpleChatHome.java b/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/SimpleChatHome.java
index 11542ed..2987dd4 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/SimpleChatHome.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/SimpleChatHome.java
@@ -1,5 +1,8 @@
-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.UnknownChatroomException;
 import lombok.extern.slf4j.Slf4j;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
@@ -10,34 +13,54 @@ import java.util.*;
 @Slf4j
 public class SimpleChatHome implements ChatHome
 {
-  private final ChatHomeService service;
-  private final int shard;
+  private final Map<UUID, ChatRoom> chatrooms;
 
 
-  public SimpleChatHome(ChatHomeService service, int shard)
+
+  public SimpleChatHome(Flux<ChatRoom> chatroomFlux)
   {
-    log.info("Created SimpleChatHome for shard {}", shard);
-    this.service = service;
-    this.shard = shard;
+    this(chatroomFlux, null);
   }
 
-  public SimpleChatHome(ChatHomeService service)
+  public SimpleChatHome(
+      Integer shard,
+      Flux<ChatRoom> chatroomFlux)
   {
-    this(service, 0);
+    log.info("Created SimpleChatHome for shard {}", shard);
+
+    this.chatrooms = new HashMap<>();
+    chatroomFlux
+        .filter(chatRoom ->
+        {
+          if (shard == null && chatRoom.getShard() == shard)
+          {
+            return true;
+          }
+          else
+          {
+            log.info(
+                "SimpleChatHome for shard {} ignores not owned chat-room {}",
+                shard,
+                chatRoom);
+            return false;
+          }
+        })
+        .toStream()
+        .forEach(chatroom -> chatrooms.put(chatroom.getId(), chatroom));
   }
 
 
   @Override
   public Mono<ChatRoom> getChatRoom(UUID id)
   {
-    return service
-        .getChatRoom(shard, id)
+    return Mono
+        .justOrEmpty(chatrooms.get(id))
         .switchIfEmpty(Mono.error(() -> new UnknownChatroomException(id)));
   }
 
   @Override
   public Flux<ChatRoom> getChatRooms()
   {
-    return service.getChatRooms(shard);
+    return Flux.fromIterable(chatrooms.values());
   }
 }