| /* |
| * 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.cassandra.utils; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| import org.apache.cassandra.concurrent.InfiniteLoopExecutor; |
| |
| import static java.util.concurrent.TimeUnit.NANOSECONDS; |
| |
| public class ExecutorUtils |
| { |
| |
| public static Runnable runWithThreadName(Runnable runnable, String threadName) |
| { |
| return () -> { |
| String oldThreadName = Thread.currentThread().getName(); |
| try |
| { |
| Thread.currentThread().setName(threadName); |
| runnable.run(); |
| } |
| finally |
| { |
| Thread.currentThread().setName(oldThreadName); |
| } |
| }; |
| } |
| |
| public static void shutdownNow(Iterable<?> executors) |
| { |
| shutdown(true, executors); |
| } |
| |
| public static void shutdown(Iterable<?> executors) |
| { |
| shutdown(false, executors); |
| } |
| |
| public static void shutdown(boolean interrupt, Iterable<?> executors) |
| { |
| for (Object executor : executors) |
| { |
| if (executor instanceof ExecutorService) |
| { |
| if (interrupt) ((ExecutorService) executor).shutdownNow(); |
| else ((ExecutorService) executor).shutdown(); |
| } |
| else if (executor instanceof InfiniteLoopExecutor) |
| ((InfiniteLoopExecutor) executor).shutdownNow(); |
| else if (executor instanceof Thread) |
| ((Thread) executor).interrupt(); |
| else if (executor != null) |
| throw new IllegalArgumentException(executor.toString()); |
| } |
| } |
| |
| public static void shutdown(ExecutorService ... executors) |
| { |
| shutdown(Arrays.asList(executors)); |
| } |
| |
| public static void shutdownNow(ExecutorService ... executors) |
| { |
| shutdownNow(Arrays.asList(executors)); |
| } |
| |
| public static void awaitTermination(long timeout, TimeUnit unit, ExecutorService ... executors) throws InterruptedException, TimeoutException |
| { |
| awaitTermination(timeout, unit, Arrays.asList(executors)); |
| } |
| |
| public static void awaitTermination(long timeout, TimeUnit unit, Collection<?> executors) throws InterruptedException, TimeoutException |
| { |
| long deadline = System.nanoTime() + unit.toNanos(timeout); |
| awaitTerminationUntil(deadline, executors); |
| } |
| |
| public static void awaitTerminationUntil(long deadline, Collection<?> executors) throws InterruptedException, TimeoutException |
| { |
| for (Object executor : executors) |
| { |
| long wait = deadline - System.nanoTime(); |
| if (executor instanceof ExecutorService) |
| { |
| if (wait <= 0 || !((ExecutorService)executor).awaitTermination(wait, NANOSECONDS)) |
| throw new TimeoutException(executor + " did not terminate on time"); |
| } |
| else if (executor instanceof InfiniteLoopExecutor) |
| { |
| if (wait <= 0 || !((InfiniteLoopExecutor)executor).awaitTermination(wait, NANOSECONDS)) |
| throw new TimeoutException(executor + " did not terminate on time"); |
| } |
| else if (executor instanceof Thread) |
| { |
| Thread t = (Thread) executor; |
| if (wait <= 0) |
| throw new TimeoutException(executor + " did not terminate on time"); |
| t.join((wait + 999999) / 1000000L, (int) (wait % 1000000L)); |
| if (t.isAlive()) |
| throw new TimeoutException(executor + " did not terminate on time"); |
| } |
| else if (executor != null) |
| { |
| throw new IllegalArgumentException(executor.toString()); |
| } |
| } |
| } |
| |
| public static void shutdownAndWait(long timeout, TimeUnit unit, Collection<?> executors) throws TimeoutException, InterruptedException |
| { |
| shutdown(executors); |
| awaitTermination(timeout, unit, executors); |
| } |
| |
| public static void shutdownNowAndWait(long timeout, TimeUnit unit, Collection<?> executors) throws TimeoutException, InterruptedException |
| { |
| shutdownNow(executors); |
| awaitTermination(timeout, unit, executors); |
| } |
| |
| public static void shutdownAndWait(long timeout, TimeUnit unit, Object ... executors) throws TimeoutException, InterruptedException |
| { |
| shutdownAndWait(timeout, unit, Arrays.asList(executors)); |
| } |
| |
| public static void shutdownNowAndWait(long timeout, TimeUnit unit, Object ... executors) throws TimeoutException, InterruptedException |
| { |
| shutdownNowAndWait(timeout, unit, Arrays.asList(executors)); |
| } |
| } |