001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.backgroundtask;
016    
017    import com.liferay.portal.kernel.util.AutoResetThreadLocal;
018    
019    /**
020     * @author Michael C. Han
021     */
022    public class BackgroundTaskThreadLocal {
023    
024            public static long getBackgroundTaskId() {
025                    return _backgroundTaskId.get();
026            }
027    
028            public static boolean hasBackgroundTask() {
029                    long backgroundTaskId = getBackgroundTaskId();
030    
031                    if (backgroundTaskId > 0) {
032                            return true;
033                    }
034    
035                    return false;
036            }
037    
038            public static void setBackgroundTaskId(long backgroundTaskId) {
039                    if (backgroundTaskId > 0) {
040                            _backgroundTaskId.set(backgroundTaskId);
041                    }
042            }
043    
044            private static ThreadLocal<Long> _backgroundTaskId =
045                    new AutoResetThreadLocal<Long>(
046                            BackgroundTaskThreadLocal.class + "._backgroundTaskId", 0L);
047    
048    }