1 /*********************************************************************
2 *
3 * Copyright (C) 2003 Andrew Khan
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ***************************************************************************/
19
20 package common.log;
21
22 import org.apache.log4j.Logger;
23
24 /**
25 * A logger which uses the log4j library from jakarta. Each instance
26 * of this class acts as a wrapper to the log4j Logger class
27 */
28 public class Log4JLogger extends common.Logger
29 {
30 /**
31 * The log4j logger
32 */
33 private Logger log4jLogger;
34
35 /**
36 * Default constructor. This constructor is
37 */
38 public Log4JLogger()
39 {
40 super();
41 }
42
43 /**
44 * Constructor invoked by the getLoggerImpl method to return a logger
45 * for a particular class
46 */
47 private Log4JLogger(Logger l)
48 {
49 super();
50 log4jLogger = l;
51 }
52
53 /**
54 * Log a debug message
55 */
56 public void debug(Object message)
57 {
58 log4jLogger.debug(message);
59 }
60
61 /**
62 * Log a debug message and exception
63 */
64 public void debug(Object message, Throwable t)
65 {
66 log4jLogger.debug(message, t);
67 }
68
69 /**
70 * Log an error message
71 */
72 public void error(Object message)
73 {
74 log4jLogger.error(message);
75 }
76
77 /**
78 * Log an error message object and exception
79 */
80 public void error(Object message, Throwable t)
81 {
82 log4jLogger.error(message, t);
83 }
84
85 /**
86 * Log a fatal message
87 */
88 public void fatal(Object message)
89 {
90 log4jLogger.fatal(message);
91 }
92
93 /**
94 * Log a fatal message and exception
95 */
96 public void fatal(Object message, Throwable t)
97 {
98 log4jLogger.fatal(message,t);
99 }
100
101 /**
102 * Log an information message
103 */
104 public void info(Object message)
105 {
106 log4jLogger.info(message);
107 }
108
109 /**
110 * Logs an information message and an exception
111 */
112
113 public void info(Object message, Throwable t)
114 {
115 log4jLogger.info(message, t);
116 }
117
118 /**
119 * Log a warning message object
120 */
121 public void warn(Object message)
122 {
123 log4jLogger.warn(message);
124 }
125
126 /**
127 * Log a warning message with exception
128 */
129 public void warn(Object message, Throwable t)
130 {
131 log4jLogger.warn(message, t);
132 }
133
134 /**
135 * Accessor to the logger implementation
136 */
137 protected common.Logger getLoggerImpl(Class cl)
138 {
139 Logger l = Logger.getLogger(cl);
140 return new Log4JLogger(l);
141 }
142 }
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