1 package de.juplo.kafka.chat.backend.implementation;
3 import de.juplo.kafka.chat.backend.domain.ChatHomeService;
4 import de.juplo.kafka.chat.backend.domain.ChatRoomInfo;
5 import de.juplo.kafka.chat.backend.domain.Message;
6 import org.slf4j.Logger;
7 import org.slf4j.LoggerFactory;
8 import reactor.core.publisher.Flux;
10 import java.util.UUID;
13 public interface StorageStrategy
15 Logger log = LoggerFactory.getLogger(StorageStrategy.class.getCanonicalName());
17 default Flux<ChatRoomInfo> write(ChatHomeService chatHomeService)
19 return writeChatRoomInfo(
22 .doOnNext(chatRoomInfo -> writeChatRoomData(
25 .getChatRoomData(chatRoomInfo.getId())
26 .flatMapMany(chatRoomData -> chatRoomData.getMessages())
28 .doOnComplete(() -> log.info("Stored {}", chatRoomInfo))
29 .doOnError(throwable -> log.error("Could not store {}: {}", chatRoomInfo, throwable))
32 .doOnComplete(() -> log.info("Stored {}", chatHomeService))
33 .doOnError(throwable -> log.error("Could not store {}: {}", chatHomeService, throwable));
36 Flux<ChatRoomInfo> writeChatRoomInfo(Flux<ChatRoomInfo> chatRoomInfoFlux);
37 Flux<ChatRoomInfo> readChatRoomInfo();
38 Flux<Message> writeChatRoomData(UUID chatRoomId, Flux<Message> messageFlux);
39 Flux<Message> readChatRoomData(UUID chatRoomId);