X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fchat%2Fbackend%2Fdomain%2FChatRoom.java;h=02f5c08c3209e5c9bb58a8758cf1414b6a5d50e5;hb=41e0a7cfd0025d5bea9722c8fc10c3b20a0fcad7;hp=1c21fb979a1f2f4c5a061b2c1243d39f24d4cb5c;hpb=7dc64266c5675ead8214edb36173b80363e08b1f;p=demos%2Fkafka%2Fchat

diff --git a/src/main/java/de/juplo/kafka/chat/backend/domain/ChatRoom.java b/src/main/java/de/juplo/kafka/chat/backend/domain/ChatRoom.java
index 1c21fb97..02f5c08c 100644
--- a/src/main/java/de/juplo/kafka/chat/backend/domain/ChatRoom.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/domain/ChatRoom.java
@@ -7,6 +7,7 @@ import lombok.extern.slf4j.Slf4j;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.core.publisher.Sinks;
+import reactor.core.publisher.SynchronousSink;
 
 import java.time.Clock;
 import java.time.LocalDateTime;
@@ -25,6 +26,8 @@ public class ChatRoom
   private final UUID id;
   @Getter
   private final String name;
+  @Getter
+  private final int shard;
   private final Clock clock;
   private final ChatRoomService service;
   private final int bufferSize;
@@ -34,12 +37,15 @@ public class ChatRoom
   public ChatRoom(
       UUID id,
       String name,
+      int shard,
       Clock clock,
       ChatRoomService service,
       int bufferSize)
   {
+    log.info("Created ChatRoom {} with buffer-size {}", id, bufferSize);
     this.id = id;
     this.name = name;
+    this.shard = shard;
     this.clock = clock;
     this.service = service;
     this.bufferSize = bufferSize;
@@ -62,9 +68,17 @@ public class ChatRoom
     Message.MessageKey key = Message.MessageKey.of(user, id);
     return service
         .getMessage(key)
-        .flatMap(existing -> text.equals(existing.getMessageText())
-            ? Mono.just(existing)
-            : Mono.error(() -> new MessageMutationException(existing, text)))
+        .handle((Message existing, SynchronousSink<Message> sink) ->
+        {
+          if (existing.getMessageText().equals(text))
+          {
+            sink.next(existing);
+          }
+          else
+          {
+            sink.error(new MessageMutationException(existing, text));
+          }
+        })
         .switchIfEmpty(
             Mono
                 .fromSupplier(() ->service.persistMessage(key, LocalDateTime.now(clock), text))