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feat: Reintroduced `ChatRoom.shard`, becaus it is needed as a routing-hint
[demos/kafka/chat]
/
src
/
main
/
java
/
de
/
juplo
/
kafka
/
chat
/
backend
/
persistence
/
inmemory
/
InMemoryChatHomeService.java
diff --git
a/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryChatHomeService.java
b/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryChatHomeService.java
index
95a30db
..
fd54d34
100644
(file)
--- a/
src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryChatHomeService.java
+++ b/
src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryChatHomeService.java
@@
-2,7
+2,6
@@
package de.juplo.kafka.chat.backend.persistence.inmemory;
import de.juplo.kafka.chat.backend.domain.ChatRoom;
import de.juplo.kafka.chat.backend.domain.ChatHomeService;
import de.juplo.kafka.chat.backend.domain.ChatRoom;
import de.juplo.kafka.chat.backend.domain.ChatHomeService;
-import de.juplo.kafka.chat.backend.domain.ShardingStrategy;
import lombok.extern.slf4j.Slf4j;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import lombok.extern.slf4j.Slf4j;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
@@
-13,18
+12,15
@@
import java.util.*;
@Slf4j
public class InMemoryChatHomeService implements ChatHomeService
{
@Slf4j
public class InMemoryChatHomeService implements ChatHomeService
{
- private final ShardingStrategy shardingStrategy;
private final Map<UUID, ChatRoom>[] chatrooms;
public InMemoryChatHomeService(
private final Map<UUID, ChatRoom>[] chatrooms;
public InMemoryChatHomeService(
- ShardingStrategy shardingStrategy,
int numShards,
int[] ownedShards,
Flux<ChatRoom> chatroomFlux)
{
log.debug("Creating InMemoryChatHomeService");
int numShards,
int[] ownedShards,
Flux<ChatRoom> chatroomFlux)
{
log.debug("Creating InMemoryChatHomeService");
- this.shardingStrategy = shardingStrategy;
this.chatrooms = new Map[numShards];
Set<Integer> owned = Arrays
.stream(ownedShards)
this.chatrooms = new Map[numShards];
Set<Integer> owned = Arrays
.stream(ownedShards)
@@
-41,8
+37,7
@@
public class InMemoryChatHomeService implements ChatHomeService
chatroomFlux
.filter(chatRoom ->
{
chatroomFlux
.filter(chatRoom ->
{
- int shard = shardingStrategy.selectShard(chatRoom.getId());
- if (owned.contains(shard))
+ if (owned.contains(chatRoom.getShard()))
{
return true;
}
{
return true;
}
@@
-53,16
+48,13
@@
public class InMemoryChatHomeService implements ChatHomeService
}
})
.toStream()
}
})
.toStream()
- .forEach(chatRoom ->
- {
- getChatRoomMapFor(chatRoom).put(chatRoom.getId(), chatRoom);
- });
+ .forEach(chatroom -> chatrooms[chatroom.getShard()].put(chatroom.getId(), chatroom));
}
@Override
public Mono<ChatRoom> putChatRoom(ChatRoom chatRoom)
{
}
@Override
public Mono<ChatRoom> putChatRoom(ChatRoom chatRoom)
{
-
getChatRoomMapFor(chatRoom)
.put(chatRoom.getId(), chatRoom);
+
chatrooms[chatRoom.getShard()]
.put(chatRoom.getId(), chatRoom);
return Mono.just(chatRoom);
}
return Mono.just(chatRoom);
}
@@
-77,11
+69,4
@@
public class InMemoryChatHomeService implements ChatHomeService
{
return Flux.fromStream(chatrooms[shard].values().stream());
}
{
return Flux.fromStream(chatrooms[shard].values().stream());
}
-
-
- private Map<UUID, ChatRoom> getChatRoomMapFor(ChatRoom chatRoom)
- {
- int shard = shardingStrategy.selectShard(chatRoom.getId());
- return chatrooms[shard];
- }
}
}