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Java > Open Source Codes > org > objectweb > easybeans > log > JLogFactory


1 /**
2  * EasyBeans
3  * Copyright (C) 2006 Bull S.A.S.
4  * Contact: easybeans@objectweb.org
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  * USA
20  *
21  * --------------------------------------------------------------------------
22  * $Id: JLogFactory.java 999 2006-08-02 14:07:15Z benoitf $
23  * --------------------------------------------------------------------------
24  */
25
26 package org.objectweb.easybeans.log;
27
28 import org.apache.commons.logging.Log;
29 import org.apache.commons.logging.LogFactory;
30
31 import org.objectweb.easybeans.i18n.I18n;
32
33 /**
34  * This factory delegates to commons logging factory the creation of a logger.
35  * Then, this logger is wrapped into an EasyBeans logger.
36  * @author Florent Benoit
37  */
38 public final class JLogFactory {
39
40     /**
41      * Use of commons logging.
42      */
43     private static final String JavaDoc COMMONS_LOGGING_PROPERTY = "easybeans.logger.commonslogging";
44
45     /**
46      * Use commons logging instead ?
47      */
48     private static boolean useCommonsLogging = false;
49
50     /**
51      * Initialized ?
52      */
53     private static boolean init = false;
54
55     /**
56      * Utility class, no public constructor.
57      */
58     private JLogFactory() {
59
60     }
61
62     /**
63      * Factory method used to return a logger.
64      * @param clazz a class used as a key for the logger
65      * @return an EasyBeans logger.
66      */
67     public static JLog getLog(final Class JavaDoc clazz) {
68         if (!init) {
69             String JavaDoc prop = System.getProperty(COMMONS_LOGGING_PROPERTY, "false");
70             useCommonsLogging = Boolean.getBoolean(prop);
71         }
72
73         if (useCommonsLogging) {
74             Log log = LogFactory.getLog(clazz);
75             return new CommonsLoggerImpl(log, I18n.getInstance(clazz));
76         }
77         // else
78 return new JDKLogger(clazz, I18n.getInstance(clazz));
79
80     }
81 }
82
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