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feat: `UnknownChatroomException` records shard and owned shards
[demos/kafka/chat]
/
src
/
main
/
java
/
de
/
juplo
/
kafka
/
chat
/
backend
/
persistence
/
kafka
/
KafkaChatHome.java
diff --git
a/src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHome.java
b/src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHome.java
index
6799040
..
07fb885
100644
(file)
--- a/
src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHome.java
+++ b/
src/main/java/de/juplo/kafka/chat/backend/persistence/kafka/KafkaChatHome.java
@@
-2,6
+2,7
@@
package de.juplo.kafka.chat.backend.persistence.kafka;
import de.juplo.kafka.chat.backend.domain.ChatHome;
import de.juplo.kafka.chat.backend.domain.ChatRoom;
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.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.common.utils.Utils;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.common.utils.Utils;
@@
-23,7
+24,12
@@
public class KafkaChatHome implements ChatHome
public Mono<ChatRoom> getChatRoom(UUID id)
{
int shard = selectShard(id);
public Mono<ChatRoom> getChatRoom(UUID id)
{
int shard = selectShard(id);
- return chatRoomChannel.getChatRoom(shard, id);
+ return chatRoomChannel
+ .getChatRoom(shard, id)
+ .switchIfEmpty(Mono.error(() -> new UnknownChatroomException(
+ id,
+ shard,
+ chatRoomChannel.getOwnedShards())));
}
int selectShard(UUID chatRoomId)
}
int selectShard(UUID chatRoomId)