| /* |
| * 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.druid.concurrent; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.locks.LockSupport; |
| |
| public final class Threads |
| { |
| |
| /** |
| * Equivalent of {@link Thread#sleep(long)} with arguments and semantics of timed wait methods in classes from {@link |
| * java.util.concurrent} (like {@link java.util.concurrent.Semaphore#tryAcquire(long, TimeUnit)}, |
| * {@link java.util.concurrent.locks.Lock#tryLock(long, TimeUnit)}, etc.): if the sleepTime argument is negative or |
| * zero, the method returns immediately. {@link Thread#sleep}, on the contrary, throws an IllegalArgumentException if |
| * the argument is negative and attempts to unschedule the thread if the argument is zero. |
| * |
| * @throws InterruptedException if the current thread is interrupted when this method is called or during sleeping. |
| */ |
| public static void sleepFor(long sleepTime, TimeUnit unit) throws InterruptedException |
| { |
| if (Thread.interrupted()) { |
| throw new InterruptedException(); |
| } |
| if (sleepTime <= 0) { |
| return; |
| } |
| long sleepTimeLimitNanos = System.nanoTime() + unit.toNanos(sleepTime); |
| while (true) { |
| long sleepTimeoutNanos = sleepTimeLimitNanos - System.nanoTime(); |
| if (sleepTimeoutNanos <= 0) { |
| return; |
| } |
| LockSupport.parkNanos(sleepTimeoutNanos); |
| if (Thread.interrupted()) { |
| throw new InterruptedException(); |
| } |
| } |
| } |
| |
| private Threads() |
| { |
| } |
| } |