| /* |
| * 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.ignite.thread; |
| |
| import java.lang.Thread.UncaughtExceptionHandler; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.RejectedExecutionException; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * An {@link ExecutorService} that executes submitted tasks using pooled grid threads. |
| */ |
| public class IgniteStripedThreadPoolExecutor implements ExecutorService { |
| /** */ |
| private final ExecutorService[] execs; |
| |
| /** |
| * Create striped thread pool. |
| * |
| * @param concurrentLvl Concurrency level. |
| * @param igniteInstanceName Node name. |
| * @param threadNamePrefix Thread name prefix. |
| * @param allowCoreThreadTimeOut Sets the policy governing whether core threads may time out and |
| * terminate if no tasks arrive within the keep-alive time. |
| * @param keepAliveTime When the number of threads is greater than the core, this is the maximum time |
| * that excess idle threads will wait for new tasks before terminating. |
| * @param eHnd Uncaught exception handler. |
| */ |
| public IgniteStripedThreadPoolExecutor( |
| int concurrentLvl, |
| String igniteInstanceName, |
| String threadNamePrefix, |
| UncaughtExceptionHandler eHnd, |
| boolean allowCoreThreadTimeOut, |
| long keepAliveTime) { |
| execs = new ExecutorService[concurrentLvl]; |
| |
| ThreadFactory factory = new IgniteThreadFactory(igniteInstanceName, threadNamePrefix, eHnd); |
| |
| for (int i = 0; i < concurrentLvl; i++) { |
| IgniteThreadPoolExecutor executor = new IgniteThreadPoolExecutor( |
| 1, |
| 1, |
| keepAliveTime, |
| new LinkedBlockingQueue<>(), |
| factory); |
| |
| executor.allowCoreThreadTimeOut(allowCoreThreadTimeOut); |
| |
| execs[i] = executor; |
| } |
| } |
| |
| /** |
| * Executes the given command at some time in the future. The command with the same {@code index} |
| * will be executed in the same thread. |
| * |
| * @param task the runnable task |
| * @param idx Striped index. |
| * @throws RejectedExecutionException if this task cannot be |
| * accepted for execution. |
| * @throws NullPointerException If command is null |
| */ |
| public void execute(Runnable task, int idx) { |
| execs[threadId(idx)].execute(task); |
| } |
| |
| /** |
| * @param idx Index. |
| * @return Stripped thread ID. |
| */ |
| public int threadId(int idx) { |
| return idx < execs.length ? idx : idx % execs.length; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void shutdown() { |
| for (ExecutorService exec : execs) |
| exec.shutdown(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public List<Runnable> shutdownNow() { |
| if (execs.length == 0) |
| return Collections.emptyList(); |
| |
| List<Runnable> res = new ArrayList<>(execs.length); |
| |
| for (ExecutorService exec : execs) { |
| for (Runnable r : exec.shutdownNow()) |
| res.add(r); |
| } |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean isShutdown() { |
| for (ExecutorService exec : execs) { |
| if (!exec.isShutdown()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean isTerminated() { |
| for (ExecutorService exec : execs) { |
| if (!exec.isTerminated()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException { |
| boolean res = true; |
| |
| for (ExecutorService exec : execs) |
| res &= exec.awaitTermination(timeout, unit); |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> Future<T> submit(Callable<T> task) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> Future<T> submit(Runnable task, T res) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public Future<?> submit(Runnable task) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, |
| long timeout, |
| TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> T invokeAny(Collection<? extends Callable<T>> tasks) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public <T> T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void execute(Runnable cmd) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(IgniteStripedThreadPoolExecutor.class, this); |
| } |
| } |