package de.juplo.kafka.chat.backend.persistence.kafka;
import de.juplo.kafka.chat.backend.domain.ChatRoomService;
-import de.juplo.kafka.chat.backend.domain.Message;
-import de.juplo.kafka.chat.backend.domain.MessageMutationException;
+import de.juplo.kafka.chat.backend.domain.Message;import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.producer.Producer;
-import org.apache.kafka.clients.producer.ProducerRecord;
-import org.apache.kafka.common.TopicPartition;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import java.time.LocalDateTime;
-import java.time.ZoneOffset;
import java.util.LinkedHashMap;
import java.util.UUID;
+@RequiredArgsConstructor
@Slf4j
public class KafkaChatRoomService implements ChatRoomService
{
- private final Producer<String, MessageTo> producer;
- private final TopicPartition tp;
+ private final ChatMessageChannel chatMessageChannel;
private final UUID chatRoomId;
- private final ZoneOffset zoneOffset;
private final LinkedHashMap<Message.MessageKey, Message> messages = new LinkedHashMap<>();
- private MessageHandlingStrategy strategy;
-
-
- public KafkaChatRoomService(
- Producer<String, MessageTo> producer,
- TopicPartition tp,
- UUID chatRoomId,
- ZoneOffset zoneOffset)
- {
- this.producer = producer;
- this.tp = tp;
- this.chatRoomId = chatRoomId;
- this.zoneOffset = zoneOffset;
- this.strategy = new ChatroomInactiveMessageHandlingStrategy(tp);
- }
-
@Override
public Mono<Message> persistMessage(
LocalDateTime timestamp,
String text)
{
- return strategy.persistMessage(key, timestamp, text);
+ return chatMessageChannel
+ .sendChatMessage(chatRoomId, key, timestamp, text)
+ .doOnSuccess(message -> persistMessage(message));
}
- synchronized protected void addMessage(Message message) throws MessageMutationException
+ void persistMessage(Message message)
{
- Message existingMessage = messages.get(message.getKey());
-
- if (existingMessage == null)
- {
- messages.put(existingMessage.getKey(), existingMessage);
- }
- else
- {
- if (!existingMessage.getMessageText().equals(message.getMessageText()))
- {
- throw new MessageMutationException(existingMessage, message.getMessageText());
- }
-
- // Warn and emit existing message
- log.warn(
- "Keeping existing message with {}@{} for {}",
- existingMessage.getSerialNumber(),
- existingMessage.getTimestamp(),
- existingMessage.getKey());
- }
+ messages.put(message.getKey(), message);
}
@Override