1
22
23 package com.liferay.util.log4j;
24
25 import java.net.URL;
26
27 import java.util.Enumeration;
28 import java.util.HashSet;
29 import java.util.Iterator;
30 import java.util.Set;
31
32 import org.apache.log4j.Level;
33 import org.apache.log4j.LogManager;
34 import org.apache.log4j.Logger;
35 import org.apache.log4j.helpers.NullEnumeration;
36 import org.apache.log4j.xml.DOMConfigurator;
37
38 import org.dom4j.Document;
39 import org.dom4j.Element;
40 import org.dom4j.io.SAXReader;
41
42
48 public class Log4JUtil {
49
50 public static void configureLog4J(URL url) {
51 if (url == null) {
52 return;
53 }
54
55 if (Logger.getRootLogger().getAllAppenders() instanceof
56 NullEnumeration) {
57
58 DOMConfigurator.configure(url);
59 }
60 else {
61 Set<String> currentLoggerNames = new HashSet<String>();
62
63 Enumeration<Logger> enu = LogManager.getCurrentLoggers();
64
65 while (enu.hasMoreElements()) {
66 Logger logger = enu.nextElement();
67
68 currentLoggerNames.add(logger.getName());
69 }
70
71 try {
72 SAXReader reader = new SAXReader();
73
74 Document doc = reader.read(url);
75
76 Element root = doc.getRootElement();
77
78 Iterator<Element> itr = root.elements("category").iterator();
79
80 while (itr.hasNext()) {
81 Element category = itr.next();
82
83 String name = category.attributeValue("name");
84 String priority =
85 category.element("priority").attributeValue("value");
86
87 setLevel(name, priority);
88 }
89 }
90 catch (Exception e) {
91 e.printStackTrace();
92 }
93 }
94 }
95
96 public static void setLevel(String name, String priority) {
97 Logger logger = Logger.getLogger(name);
98
99 logger.setLevel(Level.toLevel(priority));
100
101 java.util.logging.Logger jdkLogger = java.util.logging.Logger.getLogger(
102 name);
103
104 jdkLogger.setLevel(_getJdkLevel(priority));
105 }
106
107 private static java.util.logging.Level _getJdkLevel(String priority) {
108 if (priority.equalsIgnoreCase(Level.DEBUG.toString())) {
109 return java.util.logging.Level.FINE;
110 }
111 else if (priority.equalsIgnoreCase(Level.ERROR.toString())) {
112 return java.util.logging.Level.SEVERE;
113 }
114 else if (priority.equalsIgnoreCase(Level.WARN.toString())) {
115 return java.util.logging.Level.WARNING;
116 }
117 else {
118 return java.util.logging.Level.INFO;
119 }
120 }
121
122 }