kafka SystemScheduler 源码
kafka SystemScheduler 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/utils/SystemScheduler.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.common.utils;
import java.util.concurrent.Callable;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
/**
* A scheduler implementation that uses the system clock.
*
* Use Scheduler.SYSTEM instead of constructing an instance of this class.
*/
public class SystemScheduler implements Scheduler {
SystemScheduler() {
}
@Override
public Time time() {
return Time.SYSTEM;
}
@Override
public <T> Future<T> schedule(final ScheduledExecutorService executor,
final Callable<T> callable, long delayMs) {
return executor.schedule(callable, delayMs, TimeUnit.MILLISECONDS);
}
}
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