| /* |
| * 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.tomcat.util.threads; |
| |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.tomcat.util.security.PrivilegedSetTccl; |
| |
| /** |
| * Simple task thread factory to use to create threads for an executor |
| * implementation. |
| */ |
| public class TaskThreadFactory implements ThreadFactory { |
| |
| private final ThreadGroup group; |
| private final AtomicInteger threadNumber = new AtomicInteger(1); |
| private final String namePrefix; |
| private final boolean daemon; |
| private final int threadPriority; |
| |
| public TaskThreadFactory(String namePrefix, boolean daemon, int priority) { |
| SecurityManager s = System.getSecurityManager(); |
| group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup(); |
| this.namePrefix = namePrefix; |
| this.daemon = daemon; |
| this.threadPriority = priority; |
| } |
| |
| @Override |
| public Thread newThread(Runnable r) { |
| TaskThread t = new TaskThread(group, r, namePrefix + threadNumber.getAndIncrement()); |
| t.setDaemon(daemon); |
| t.setPriority(threadPriority); |
| |
| // Set the context class loader of newly created threads to be the class |
| // loader that loaded this factory. This avoids retaining references to |
| // web application class loaders and similar. |
| if (Constants.IS_SECURITY_ENABLED) { |
| PrivilegedAction<Void> pa = new PrivilegedSetTccl( |
| t, getClass().getClassLoader()); |
| AccessController.doPrivileged(pa); |
| } else { |
| t.setContextClassLoader(getClass().getClassLoader()); |
| } |
| |
| return t; |
| } |
| } |