juplo.de Git - demos/kafka/chat/blob - src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryChatRoomFactory.java

   1 package de.juplo.kafka.chat.backend.persistence.inmemory;
   2
   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;
  11
  12 import java.time.Clock;
  13 import java.util.UUID;
  14
  15
  16 @RequiredArgsConstructor
  17 @Slf4j
  18 public class InMemoryChatRoomFactory implements ChatRoomFactory
  19 {
  20   private final ShardingStrategy shardingStrategy;
  21   private final Clock clock;
  22   private final int bufferSize;
  23
  24
  25   @Override
  26   public Mono<ChatRoom> createChatRoom(UUID id, String name)
  27   {
  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));
  32   }
  33 }