1 /*
2 * Copyright (c) 2004-2005 SLF4J.ORG
3 * Copyright (c) 2004-2005 QOS.ch
4 *
5 * All rights reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, and/or sell copies of the Software, and to permit persons
12 * to whom the Software is furnished to do so, provided that the above
13 * copyright notice(s) and this permission notice appear in all copies of
14 * the Software and that both the above copyright notice(s) and this
15 * permission notice appear in supporting documentation.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
20 * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
21 * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY
22 * SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
23 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
24 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
25 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
26 *
27 * Except as contained in this notice, the name of a copyright holder
28 * shall not be used in advertising or otherwise to promote the sale, use
29 * or other dealings in this Software without prior written authorization
30 * of the copyright holder.
31 */
32
33
34 package org.slf4j.impl;
35
36 import it.imolinfo.jbi4cics.jbi.Messages;
37 import java.util.MissingResourceException;
38 import org.apache.log4j.LogManager;
39 import org.slf4j.ILoggerFactory;
40 import it.imolinfo.jbi4cics.Logger;
41
42 /**
43 * Log4jLoggerFactory is an implementation of
44 * <code>org.slf4j.ILoggerFactory</code> returning
45 * the appropriate named {@link Log4jLoggerAdapter} instance.
46 * <p>
47 *
48 * @author Ceki Gülcü
49 * @author <a href="mailto:acannone@imolinfo.it">Amedeo Cannone</a>
50 * @author <a href="mailto:mcimatti@imolinfo.it">Marco Cimatti</a>
51 */
52 final class Log4jLoggerFactory implements ILoggerFactory {
53
54 /**
55 * Creates a new instance of this class.
56 */
57 Log4jLoggerFactory() {
58 }
59
60 /**
61 * Return an appropriate <code>org.slf4j.Logger</code> instance as specified
62 * by the <code>name</code> parameter.
63 * <p>
64 * If <code>name</code> is equal to the string value <code>"NULL"</code>
65 * (case insensitive), then the root logger of the underlying logging system
66 * is returned.
67 * <p>
68 * Null-valued name arguments are considered invalid.
69 * <p>
70 * Certain extremely simple logging systems, e.g. NOP, may always return the
71 * same logger instance regardless of the requested name.
72 *
73 * @param name the name of the Logger to return.
74 * @return the <code>org.slf4j.Logger</code> instance as specified by
75 * <code>name</code>.
76 */
77 public Logger getLogger(final String name) {
78 org.apache.log4j.Logger log4jLogger;
79 Messages messages;
80
81 if (name.equalsIgnoreCase(Logger.ROOT_LOGGER_NAME)) {
82 log4jLogger = LogManager.getRootLogger();
83 } else {
84 log4jLogger = LogManager.getLogger(name);
85 }
86
87 // If name identifies a Class, there may be an associated resource
88 // bundle to apply I18N
89 try {
90 Class clazz = Class.forName(name);
91
92 messages = Messages.getMessages(clazz);
93 } catch (ClassNotFoundException e) {
94 messages = null;
95 } catch (MissingResourceException e) {
96 messages = null;
97 }
98
99 return new Log4jLoggerAdapter(log4jLogger, messages);
100 }
101 }