| package org.apache.maven.surefire.api.util.internal; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Creates new daemon Thread. |
| */ |
| public final class DaemonThreadFactory |
| implements ThreadFactory |
| { |
| private static final ThreadFactory DEFAULT_THREAD_FACTORY = Executors.defaultThreadFactory(); |
| |
| private static final AtomicInteger POOL_NUMBER = new AtomicInteger( 1 ); |
| |
| private final AtomicInteger threadNumber = new AtomicInteger( 1 ); |
| |
| private final String namePrefix; |
| |
| private DaemonThreadFactory() |
| { |
| namePrefix = "pool-" + POOL_NUMBER.getAndIncrement() + "-thread-"; |
| } |
| |
| @Override |
| public Thread newThread( Runnable r ) |
| { |
| Thread t = DEFAULT_THREAD_FACTORY.newThread( r ); |
| t.setName( namePrefix + threadNumber.getAndIncrement() ); |
| t.setDaemon( true ); |
| return t; |
| } |
| |
| /** |
| * Should be used by thread pools. |
| * @return new instance of {@link ThreadFactory} where each {@link Thread thread} is daemon |
| */ |
| public static ThreadFactory newDaemonThreadFactory() |
| { |
| return new DaemonThreadFactory(); |
| } |
| |
| public static ThreadFactory newDaemonThreadFactory( String name ) |
| { |
| return new NamedThreadFactory( name ); |
| } |
| |
| public static Thread newDaemonThread( Runnable r ) |
| { |
| return new DaemonThreadFactory().newThread( r ); |
| } |
| |
| public static Thread newDaemonThread( Runnable r, String name ) |
| { |
| Thread t = new DaemonThreadFactory().newThread( r ); |
| t.setName( name ); |
| return t; |
| } |
| |
| private static class NamedThreadFactory |
| implements ThreadFactory |
| { |
| private final String name; |
| |
| private NamedThreadFactory( String name ) |
| { |
| this.name = name; |
| } |
| |
| @Override |
| public Thread newThread( Runnable r ) |
| { |
| return newDaemonThread( r, name ); |
| } |
| } |
| } |