001    /**
002     * Copyright (c) 2000-present 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.concurrent;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.util.LoggingTimer;
020    
021    /**
022     * @author Michael C. Han
023     */
024    public abstract class ThrowableAwareRunnable implements Runnable {
025    
026            public Throwable getThrowable() {
027                    return _throwable;
028            }
029    
030            public boolean hasException() {
031                    if (_throwable != null) {
032                            return true;
033                    }
034    
035                    return false;
036            }
037    
038            @Override
039            public void run() {
040                    try (LoggingTimer loggingTimer = new LoggingTimer()) {
041                            doRun();
042                    }
043                    catch (Exception e) {
044                            _log.error("Unable to process runnable: " + e.getMessage(), e);
045    
046                            _throwable = e;
047                    }
048            }
049    
050            protected abstract void doRun() throws Exception;
051    
052            private static final Log _log = LogFactoryUtil.getLog(
053                    ThrowableAwareRunnable.class);
054    
055            private Throwable _throwable;
056    
057    }