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Add ListenerContainerNoLongerIdleEvent
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...fka/src/main/java/org/springframework/kafka/event/ListenerContainerNoLongerIdleEvent.java
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/* | ||
* Copyright 2020 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. | ||
* You may obtain a copy of the License at | ||
* | ||
* https://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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package org.springframework.kafka.event; | ||
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import java.util.ArrayList; | ||
import java.util.Collection; | ||
import java.util.Collections; | ||
import java.util.List; | ||
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import org.apache.kafka.clients.consumer.Consumer; | ||
import org.apache.kafka.common.TopicPartition; | ||
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/** | ||
* An event that is emitted when a container is no longer idle if configured to publish | ||
* idle events. | ||
* | ||
* @author Gary Russell | ||
* @since 2.6.2 | ||
*/ | ||
public class ListenerContainerNoLongerIdleEvent extends KafkaEvent { | ||
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private static final long serialVersionUID = 1L; | ||
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private final long idleTime; | ||
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private final String listenerId; | ||
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private final List<TopicPartition> topicPartitions; | ||
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private transient Consumer<?, ?> consumer; | ||
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/** | ||
* Construct an instance with the provided arguments. | ||
* @param source the container instance that generated the event. | ||
* @param container the container or the parent container if the container is a child. | ||
* @param idleTime how long the container was idle. | ||
* @param id the container id. | ||
* @param topicPartitions the topics/partitions currently assigned. | ||
* @param consumer the consumer. | ||
*/ | ||
public ListenerContainerNoLongerIdleEvent(Object source, Object container, long idleTime, String id, | ||
Collection<TopicPartition> topicPartitions, Consumer<?, ?> consumer) { | ||
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super(source, container); | ||
this.idleTime = idleTime; | ||
this.listenerId = id; | ||
this.topicPartitions = topicPartitions == null ? null : new ArrayList<>(topicPartitions); | ||
this.consumer = consumer; | ||
} | ||
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/** | ||
* The TopicPartitions the container is listening to. | ||
* @return the TopicPartition list. | ||
*/ | ||
public Collection<TopicPartition> getTopicPartitions() { | ||
return this.topicPartitions == null ? null : Collections.unmodifiableList(this.topicPartitions); | ||
} | ||
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/** | ||
* How long the container was idle. | ||
* @return the time in milliseconds. | ||
*/ | ||
public long getIdleTime() { | ||
return this.idleTime; | ||
} | ||
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/** | ||
* The id of the listener (if {@code @KafkaListener}) or the container bean name. | ||
* @return the id. | ||
*/ | ||
public String getListenerId() { | ||
return this.listenerId; | ||
} | ||
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/** | ||
* Retrieve the consumer. Only populated if the listener is consumer-aware. | ||
* Allows the listener to resume a paused consumer. | ||
* @return the consumer. | ||
*/ | ||
public Consumer<?, ?> getConsumer() { | ||
return this.consumer; | ||
} | ||
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@Override | ||
public String toString() { | ||
return "ListenerContainerNoLongerIdleEvent [idleTime=" | ||
+ ((float) this.idleTime / 1000) + "s, listenerId=" + this.listenerId // NOSONAR magic # | ||
+ ", container=" + getSource() | ||
+ ", topicPartitions=" + this.topicPartitions + "]"; | ||
} | ||
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} |
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