1 package de.juplo.kafka.chat.backend.persistence.inmemory;
3 import de.juplo.kafka.chat.backend.domain.ShardingStrategy;
4 import de.juplo.kafka.chat.backend.domain.ChatRoom;
5 import de.juplo.kafka.chat.backend.domain.ChatRoomFactory;
6 import de.juplo.kafka.chat.backend.domain.ChatRoomService;
7 import lombok.RequiredArgsConstructor;
8 import lombok.extern.slf4j.Slf4j;
9 import reactor.core.publisher.Flux;
10 import reactor.core.publisher.Mono;
12 import java.time.Clock;
13 import java.util.UUID;
16 @RequiredArgsConstructor
18 public class InMemoryChatRoomFactory implements ChatRoomFactory
20 private final ShardingStrategy shardingStrategy;
21 private final Clock clock;
22 private final int bufferSize;
26 public Mono<ChatRoom> createChatRoom(UUID id, String name)
28 log.info("Creating ChatRoom with buffer-size {}", bufferSize);
29 int shard = shardingStrategy.selectShard(id);
30 ChatRoomService service = new InMemoryChatRoomService(Flux.empty());
31 return Mono.just(new ChatRoom(id, name, shard, clock, service, bufferSize));