kafka NoopApplicationEvent 源码
kafka NoopApplicationEvent 代码
文件路径：/clients/src/main/java/org/apache/kafka/clients/consumer/internals/events/NoopApplicationEvent.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.
*/
package org.apache.kafka.clients.consumer.internals.events;
import org.apache.kafka.clients.consumer.internals.NoopBackgroundEvent;
import java.util.concurrent.BlockingQueue;
/**
* The event is NoOp. This is intentionally left here for demonstration purpose.
*/
public class NoopApplicationEvent extends ApplicationEvent {
public final String message;
private final BlockingQueue<BackgroundEvent> backgroundEventQueue;
public NoopApplicationEvent(final BlockingQueue<BackgroundEvent> backgroundEventQueue,
final String message) {
this.message = message;
this.backgroundEventQueue = backgroundEventQueue;
}
@Override
public boolean process() {
return backgroundEventQueue.add(new NoopBackgroundEvent(message));
}
@Override
public String toString() {
return getClass() + "_" + this.message;
}
}
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