org.apache.qpid.pool.SuppressingInheritedAccessControlContextThreadFactory Maven / Gradle / Ivy
/*
*
* 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.qpid.pool;
import javax.security.auth.Subject;
import java.security.PrivilegedAction;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
/**
* ThreadFactory to create threads with empty inherited java.security.AccessControlContext
*
* It delegates thread creation to Executors default thread factory.
*/
public class SuppressingInheritedAccessControlContextThreadFactory implements ThreadFactory
{
private final ThreadFactory _defaultThreadFactory = Executors.defaultThreadFactory();
private final String _threadNamePrefix;
private final AtomicInteger _threadId = new AtomicInteger();
private final Subject _subject;
public SuppressingInheritedAccessControlContextThreadFactory(String threadNamePrefix, final Subject subject)
{
_threadNamePrefix = threadNamePrefix;
_subject = subject;
}
@Override
public Thread newThread(final Runnable runnable)
{
return Subject.doAsPrivileged(_subject, new PrivilegedAction()
{
@Override
public Thread run()
{
Thread thread = _defaultThreadFactory.newThread(runnable);
if (_threadNamePrefix != null)
{
thread.setName(_threadNamePrefix + "-" + _threadId.getAndIncrement());
}
return thread;
}
}, null);
}
}