001    /**
002     * Copyright (c) 2000-2010 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.util.log4j;
016    
017    import com.liferay.portal.kernel.util.ServerDetector;
018    
019    import java.net.URL;
020    
021    import java.util.Enumeration;
022    import java.util.HashSet;
023    import java.util.Iterator;
024    import java.util.Set;
025    
026    import org.apache.log4j.Level;
027    import org.apache.log4j.LogManager;
028    import org.apache.log4j.Logger;
029    import org.apache.log4j.xml.DOMConfigurator;
030    
031    import org.dom4j.Document;
032    import org.dom4j.Element;
033    import org.dom4j.io.SAXReader;
034    
035    /**
036     * @author Brian Wing Shun Chan
037     */
038    public class Log4JUtil {
039    
040            public static void configureLog4J(URL url) {
041                    if (url == null) {
042                            return;
043                    }
044    
045                    // See LPS-6029 and LPS-8865
046    
047                    if (!ServerDetector.isJBoss()) {
048                            DOMConfigurator.configure(url);
049                    }
050    
051                    Set<String> currentLoggerNames = new HashSet<String>();
052    
053                    Enumeration<Logger> enu = LogManager.getCurrentLoggers();
054    
055                    while (enu.hasMoreElements()) {
056                            Logger logger = enu.nextElement();
057    
058                            currentLoggerNames.add(logger.getName());
059                    }
060    
061                    try {
062                            SAXReader reader = new SAXReader();
063    
064                            Document doc = reader.read(url);
065    
066                            Element root = doc.getRootElement();
067    
068                            Iterator<Element> itr = root.elements("category").iterator();
069    
070                            while (itr.hasNext()) {
071                                    Element category = itr.next();
072    
073                                    String name = category.attributeValue("name");
074                                    String priority =
075                                            category.element("priority").attributeValue("value");
076    
077                                    setLevel(name, priority);
078                            }
079                    }
080                    catch (Exception e) {
081                            e.printStackTrace();
082                    }
083            }
084    
085            public static void setLevel(String name, String priority) {
086                    Logger logger = Logger.getLogger(name);
087    
088                    logger.setLevel(Level.toLevel(priority));
089    
090                    java.util.logging.Logger jdkLogger = java.util.logging.Logger.getLogger(
091                            name);
092    
093                    jdkLogger.setLevel(_getJdkLevel(priority));
094            }
095    
096            private static java.util.logging.Level _getJdkLevel(String priority) {
097                    if (priority.equalsIgnoreCase(Level.DEBUG.toString())) {
098                            return java.util.logging.Level.FINE;
099                    }
100                    else if (priority.equalsIgnoreCase(Level.ERROR.toString())) {
101                            return java.util.logging.Level.SEVERE;
102                    }
103                    else if (priority.equalsIgnoreCase(Level.WARN.toString())) {
104                            return java.util.logging.Level.WARNING;
105                    }
106                    else {
107                            return java.util.logging.Level.INFO;
108                    }
109            }
110    
111    }