Merge pull request #28290 from pascal-ayotte

* pr/28290:
  Polish "Add support for IdlePartitionEventInterval"
  Add support for IdlePartitionEventInterval

Closes gh-28290

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/kafka/ConcurrentKafkaListenerContainerFactoryConfigurer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -199,6 +199,8 @@ public class ConcurrentKafkaListenerContainerFactoryConfigurer {
 		map.from(properties::getNoPollThreshold).to(container::setNoPollThreshold);
 		map.from(properties.getIdleBetweenPolls()).as(Duration::toMillis).to(container::setIdleBetweenPolls);
 		map.from(properties::getIdleEventInterval).as(Duration::toMillis).to(container::setIdleEventInterval);
+		map.from(properties::getIdlePartitionEventInterval).as(Duration::toMillis)
+				.to(container::setIdlePartitionEventInterval);
 		map.from(properties::getMonitorInterval).as(Duration::getSeconds).as(Number::intValue)
 				.to(container::setMonitorInterval);
 		map.from(properties::getLogContainerConfig).to(container::setLogContainerConfig);

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/kafka/KafkaProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -902,6 +902,12 @@ public class KafkaProperties {
 		 */
 		private Duration idleEventInterval;
 
+		/**
+		 * Time between publishing idle partition consumer events (no data received for
+		 * partition).
+		 */
+		private Duration idlePartitionEventInterval;
+
 		/**
 		 * Time between checks for non-responsive consumers. If a duration suffix is not
 		 * specified, seconds will be used.
@@ -1006,6 +1012,14 @@ public class KafkaProperties {
 			this.idleEventInterval = idleEventInterval;
 		}
 
+		public Duration getIdlePartitionEventInterval() {
+			return this.idlePartitionEventInterval;
+		}
+
+		public void setIdlePartitionEventInterval(Duration idlePartitionEventInterval) {
+			this.idlePartitionEventInterval = idlePartitionEventInterval;
+		}
+
 		public Duration getMonitorInterval() {
 			return this.monitorInterval;
 		}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/kafka/KafkaAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -389,6 +389,7 @@ class KafkaAutoConfigurationTests {
 						"spring.kafka.listener.concurrency=3", "spring.kafka.listener.poll-timeout=2000",
 						"spring.kafka.listener.no-poll-threshold=2.5", "spring.kafka.listener.type=batch",
 						"spring.kafka.listener.idle-between-polls=1s", "spring.kafka.listener.idle-event-interval=1s",
+						"spring.kafka.listener.idle-partition-event-interval=1s",
 						"spring.kafka.listener.monitor-interval=45", "spring.kafka.listener.log-container-config=true",
 						"spring.kafka.listener.only-log-record-metadata=true",
 						"spring.kafka.listener.missing-topics-fatal=true", "spring.kafka.jaas.enabled=true",
@@ -415,6 +416,7 @@ class KafkaAutoConfigurationTests {
 					assertThat(containerProperties.getNoPollThreshold()).isEqualTo(2.5f);
 					assertThat(containerProperties.getIdleBetweenPolls()).isEqualTo(1000L);
 					assertThat(containerProperties.getIdleEventInterval()).isEqualTo(1000L);
+					assertThat(containerProperties.getIdlePartitionEventInterval()).isEqualTo(1000L);
 					assertThat(containerProperties.getMonitorInterval()).isEqualTo(45);
 					assertThat(containerProperties.isLogContainerConfig()).isTrue();
 					assertThat(containerProperties.isOnlyLogRecordMetadata()).isTrue();