juplo.de Git - demos/kafka/chat/blob - src/main/java/de/juplo/kafka/chat/backend/storage/mongodb/MongoDbStorageStrategy.java

   1 package de.juplo.kafka.chat.backend.storage.mongodb;
   2
   3 import de.juplo.kafka.chat.backend.domain.ChatRoomInfo;
   4 import de.juplo.kafka.chat.backend.domain.Message;
   5 import de.juplo.kafka.chat.backend.implementation.StorageStrategy;
   6 import lombok.RequiredArgsConstructor;
   7 import lombok.extern.slf4j.Slf4j;
   8 import reactor.core.publisher.Flux;
   9
  10 import java.util.UUID;
  11 import java.util.logging.Level;
  12
  13
  14 @RequiredArgsConstructor
  15 @Slf4j
  16 public class MongoDbStorageStrategy implements StorageStrategy
  17 {
  18   private final ChatRoomRepository chatRoomRepository;
  19   private final MessageRepository messageRepository;
  20   private final String loggingCategory = MongoDbStorageStrategy.class.getSimpleName();
  21   private final Level loggingLevel;
  22   private final boolean showOperatorLine;
  23
  24
  25   @Override
  26   public Flux<ChatRoomInfo> writeChatRoomInfo(Flux<ChatRoomInfo> chatRoomInfoFlux)
  27   {
  28     return chatRoomInfoFlux
  29         .log(
  30             loggingCategory,
  31             loggingLevel,
  32             showOperatorLine)
  33         .map(ChatRoomTo::from)
  34         .flatMap(chatRoomRepository::save)
  35         .map(ChatRoomTo::toChatRoomInfo);
  36   }
  37
  38   @Override
  39   public Flux<ChatRoomInfo> readChatRoomInfo()
  40   {
  41     return chatRoomRepository
  42         .findAll()
  43         .log(
  44             loggingCategory,
  45             loggingLevel,
  46             showOperatorLine)
  47         .map(ChatRoomTo::toChatRoomInfo);
  48   }
  49
  50   @Override
  51   public Flux<Message> writeChatRoomData(UUID chatRoomId, Flux<Message> messageFlux)
  52   {
  53     return messageFlux
  54         .log(
  55             loggingCategory,
  56             loggingLevel,
  57             showOperatorLine)
  58         .map(message -> MessageTo.from(chatRoomId, message))
  59         .flatMap(messageRepository::save)
  60         .map(MessageTo::toMessage);
  61   }
  62
  63   @Override
  64   public Flux<Message> readChatRoomData(UUID chatRoomId)
  65   {
  66     return messageRepository
  67         .findByChatRoomIdOrderBySerialAsc(chatRoomId.toString())
  68         .log(
  69             loggingCategory,
  70             loggingLevel,
  71             showOperatorLine)
  72         .map(MessageTo::toMessage);
  73   }
  74 }