NEU
[demos/kafka/chat] / src / test / java / de / juplo / kafka / chat / backend / persistence / kafka / KafkaServicesConfiguration.java
index 55aa6f8..5367fdf 100644 (file)
@@ -9,15 +9,24 @@ import de.juplo.kafka.chat.backend.domain.SimpleChatHome;
 import de.juplo.kafka.chat.backend.persistence.KafkaLikeShardingStrategy;
 import de.juplo.kafka.chat.backend.persistence.inmemory.InMemoryChatHomeService;
 import de.juplo.kafka.chat.backend.persistence.inmemory.InMemoryChatRoomFactory;
+import jakarta.annotation.PreDestroy;
+import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.Consumer;
 import org.apache.kafka.clients.producer.Producer;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.ApplicationArguments;
 import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+import org.springframework.util.concurrent.ListenableFuture;
 
 import java.time.Clock;
 import java.time.ZoneId;
+import java.util.Optional;
+import java.util.concurrent.CompletableFuture;
 
 
 @ConditionalOnProperty(
@@ -25,8 +34,61 @@ import java.time.ZoneId;
     name = "services",
     havingValue = "kafka")
 @Configuration
+@Slf4j
 public class KafkaServicesConfiguration implements ApplicationRunner
 {
+  @Autowired
+  ThreadPoolTaskExecutor taskExecutor;
+  @Autowired
+  ConfigurableApplicationContext context;
+
+  @Autowired
+  ChatMessageChannel chatMessageChannel;
+  @Autowired
+  ChatRoomChannel chatRoomChannel;
+
+  CompletableFuture<Void> chatRoomChannelConsumerJob;
+  CompletableFuture<Void> chatMessageChannelConsumerJob;
+
+
+  @Override
+  public void run(ApplicationArguments args) throws Exception
+  {
+    log.info("Starting the consumer for the ChatRoomChannel");
+    chatRoomChannelConsumerJob = taskExecutor
+        .submitCompletable(chatRoomChannel)
+        .exceptionally(e ->
+        {
+          log.error("The consumer for the ChatRoomChannel exited abnormally!", e);
+          return null;
+        });
+    log.info("Starting the consumer for the ChatMessageChannel");
+    chatMessageChannelConsumerJob = taskExecutor
+        .submitCompletable(chatMessageChannel)
+        .exceptionally(e ->
+        {
+          log.error("The consumer for the ChatMessageChannel exited abnormally!", e);
+          return null;
+        });
+  }
+
+  @PreDestroy
+  public void joinChatRoomChannelConsumerJob()
+  {
+    log.info("Waiting for the consumer of the ChatRoomChannel to finish its work");
+    chatRoomChannelConsumerJob.join();
+    log.info("Joined the consumer of the ChatRoomChannel");
+  }
+
+  @PreDestroy
+  public void joinChatMessageChannelConsumerJob()
+  {
+    log.info("Waiting for the consumer of the ChatMessageChannel to finish its work");
+    chatMessageChannelConsumerJob.join();
+    log.info("Joined the consumer of the ChatMessageChannel");
+  }
+
+
   @Bean
   ChatHome kafkaChatHome(
       ShardingStrategy shardingStrategy,