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.log;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.log.LogWrapper;
020    
021    import org.apache.log4j.Level;
022    import org.apache.log4j.Logger;
023    
024    /**
025     * @author Shuyang Zhou
026     */
027    public class Log4JLoggerTestUtil {
028    
029            public static CaptureAppender configureLog4JLogger(
030                    String name, Level level) {
031    
032                    LogWrapper logWrapper = (LogWrapper)LogFactoryUtil.getLog(name);
033    
034                    Log log = logWrapper.getWrappedLog();
035    
036                    if (!(log instanceof Log4jLogImpl)) {
037                            throw new IllegalStateException(
038                                    "Log " + name + " is not a Log4j logger");
039                    }
040    
041                    Log4jLogImpl log4jLogImpl = (Log4jLogImpl)log;
042    
043                    Logger logger = log4jLogImpl.getWrappedLogger();
044    
045                    CaptureAppender captureAppender = new CaptureAppender(logger);
046    
047                    logger.addAppender(captureAppender);
048    
049                    logger.setLevel(level);
050    
051                    return captureAppender;
052            }
053    
054            public static Level setLoggerLevel(String name, Level level) {
055                    LogWrapper logWrapper = (LogWrapper)LogFactoryUtil.getLog(name);
056    
057                    Log log = logWrapper.getWrappedLog();
058    
059                    if (!(log instanceof Log4jLogImpl)) {
060                            throw new IllegalStateException(
061                                    "Log " + name + " is not a Log4j logger");
062                    }
063    
064                    Log4jLogImpl log4jLogImpl = (Log4jLogImpl)log;
065    
066                    Logger logger = log4jLogImpl.getWrappedLogger();
067    
068                    Level oldLevel = logger.getLevel();
069    
070                    logger.setLevel(level);
071    
072                    return oldLevel;
073            }
074    
075    }