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/**
 * 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.portal.kernel.cluster;

import aQute.bnd.annotation.ProviderType;

import com.liferay.portal.kernel.util.MethodHandler;
import com.liferay.portal.kernel.util.ServiceProxyFactory;

import java.util.concurrent.Future;

/**
 * @author Michael C. Han
 */
@ProviderType
public class ClusterMasterExecutorUtil {

	public static void addClusterMasterTokenTransitionListener(
		ClusterMasterTokenTransitionListener
			clusterMasterTokenTransitionListener) {

		_clusterMasterExecutor.addClusterMasterTokenTransitionListener(
			clusterMasterTokenTransitionListener);
	}

	public static  Future executeOnMaster(MethodHandler methodHandler) {
		return _clusterMasterExecutor.executeOnMaster(methodHandler);
	}

	/**
	 * @deprecated As of Judson (7.1.x), with no direct replacement
	 */
	@Deprecated
	public static ClusterMasterExecutor getClusterMasterExecutor() {
		return _clusterMasterExecutor;
	}

	public static boolean isEnabled() {
		return _clusterMasterExecutor.isEnabled();
	}

	public static boolean isMaster() {
		return _clusterMasterExecutor.isMaster();
	}

	public static void removeClusterMasterTokenTransitionListener(
		ClusterMasterTokenTransitionListener
			clusterMasterTokenTransitionListener) {

		_clusterMasterExecutor.removeClusterMasterTokenTransitionListener(
			clusterMasterTokenTransitionListener);
	}

	private static volatile ClusterMasterExecutor _clusterMasterExecutor =
		ServiceProxyFactory.newServiceTrackedInstance(
			ClusterMasterExecutor.class, ClusterMasterExecutorUtil.class,
			"_clusterMasterExecutor", false);

}




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