Merge pull request #7217 from amit2103/BAEL-14274-20

[BAEL-14274] - Fixed article code for https://www.baeldung.com/spring…

spring-kafka/src/main/java/com/baeldung/spring/kafka/KafkaConsumerConfig.java

@@ -29,39 +29,36 @@ public class KafkaConsumerConfig {
         props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
         return new DefaultKafkaConsumerFactory<>(props);
     }
+    
+    public ConcurrentKafkaListenerContainerFactory<String, String> kafkaListenerContainerFactory(String groupId) {
+        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
+        factory.setConsumerFactory(consumerFactory(groupId));
+        return factory;
+    }
 
     @Bean
     public ConcurrentKafkaListenerContainerFactory<String, String> fooKafkaListenerContainerFactory() {
-        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
+        return kafkaListenerContainerFactory("foo");
-        factory.setConsumerFactory(consumerFactory("foo"));
-        return factory;
     }
 
     @Bean
     public ConcurrentKafkaListenerContainerFactory<String, String> barKafkaListenerContainerFactory() {
-        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
+        return kafkaListenerContainerFactory("bar");
-        factory.setConsumerFactory(consumerFactory("bar"));
-        return factory;
     }
 
     @Bean
     public ConcurrentKafkaListenerContainerFactory<String, String> headersKafkaListenerContainerFactory() {
-        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
+        return kafkaListenerContainerFactory("headers");
-        factory.setConsumerFactory(consumerFactory("headers"));
-        return factory;
     }
     
     @Bean
     public ConcurrentKafkaListenerContainerFactory<String, String> partitionsKafkaListenerContainerFactory() {
-        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
+        return kafkaListenerContainerFactory("partitions");
-        factory.setConsumerFactory(consumerFactory("partitions"));
-        return factory;
     }
     
     @Bean
     public ConcurrentKafkaListenerContainerFactory<String, String> filterKafkaListenerContainerFactory() {
-        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
+        ConcurrentKafkaListenerContainerFactory<String, String> factory = kafkaListenerContainerFactory("filter");
-        factory.setConsumerFactory(consumerFactory("filter"));
         factory.setRecordFilterStrategy(record -> record.value()
             .contains("World"));
         return factory;