ThirdPartyThreadLocalRegistry.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.util;

import com.liferay.portal.kernel.util.InitialThreadLocal;

import java.util.HashSet;
import java.util.Set;

/**
 * <p>
 * See https://issues.liferay.com/browse/LPS-7864.
 * </p>
 *
 * @author Brian Wing Shun Chan
 */
public class ThirdPartyThreadLocalRegistry {

	public static void registerThreadLocal(ThreadLocal<?> threadLocal) {
		Set<ThreadLocal<?>> threadLocalSet = _threadLocalSet.get();

		threadLocalSet.add(threadLocal);
	}

	public static void resetThreadLocals() {
		Set<ThreadLocal<?>> threadLocalSet = _threadLocalSet.get();

		if (threadLocalSet == null) {
			return;
		}

		for (ThreadLocal<?> threadLocal : threadLocalSet) {
			threadLocal.remove();
		}
	}

	private static final ThreadLocal<Set<ThreadLocal<?>>> _threadLocalSet =
		new InitialThreadLocal<>(
			ThirdPartyThreadLocalRegistry.class + "._threadLocalSet",
			HashSet::new);

}