66 lines
2.5 KiB
Java
66 lines
2.5 KiB
Java
/*
|
|
* 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;
|
|
}
|
|
}
|