RCInheritedThreadFactory.java

/*
 * Copyright (c) 2020 Alibaba Group Holding Limited. All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation. Alibaba designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 */

package demo;

import com.alibaba.rcm.internal.AbstractResourceContainer;
import sun.misc.JavaLangAccess;
import sun.misc.SharedSecrets;

import java.util.concurrent.ThreadFactory;

public class RCInheritedThreadFactory implements ThreadFactory {
    public final static ThreadFactory INSTANCE = new RCInheritedThreadFactory();
    private final static JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();

    @Override
    public Thread newThread(Runnable r) {
        return new Thread(() -> {
            AbstractResourceContainer irc = JLA.getInheritedResourceContainer(Thread.currentThread());
            if (irc != null) {
                irc.run(r);
            } else {
                r.run();
            }
        });
    }
}