1 /*
2 * Copyright 2006-2012 smartics, Kronseder & Reiner GmbH
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package de.smartics.maven.util.log4j;
17
18 import org.apache.log4j.Level;
19 import org.apache.log4j.Logger;
20 import org.apache.maven.plugin.logging.Log;
21
22 /**
23 * Configures the log4j framework with the logging information.
24 *
25 * @author <a href="mailto:robert.reiner@smartics.de">Robert Reiner</a>
26 * @version $Revision:591 $
27 */
28 public class Log4jConfigurator
29 {
30 // ********************************* Fields *********************************
31
32 // --- constants ------------------------------------------------------------
33
34 /**
35 * Default constructor.
36 *
37 */
38 public Log4jConfigurator()
39 {
40 }
41
42 // --- members --------------------------------------------------------------
43
44 // ****************************** Initializer *******************************
45
46 // ****************************** Constructors ******************************
47
48 /**
49 * Configures the log4j logger.
50 *
51 * @param log the Maven logger to use for logging.
52 * @param level the new level to set the log4j logging system to.
53 */
54 public void configure(final Log log, final String level)
55 {
56 try
57 {
58 final Logger root = Logger.getRootLogger();
59 final Level log4jLevel = determineLog4jLevel(level);
60 root.setLevel(log4jLevel);
61 }
62 catch (final Exception e)
63 {
64 if (log.isWarnEnabled())
65 {
66 log.warn("Cannot configure log4j logger.", e);
67 }
68 }
69 }
70
71 private Level determineLog4jLevel(final String level)
72 {
73 if("FINEST".equals(level))
74 {
75 return Level.TRACE;
76 }
77 else if("FINER".equals(level) || "FINE".equals(level))
78 {
79 return Level.DEBUG;
80 }
81 else if("WARNING".equals(level))
82 {
83 return Level.WARN;
84 }
85 else
86 {
87 return Level.toLevel(level);
88 }
89 }
90
91 // ****************************** Inner Classes *****************************
92
93 // ********************************* Methods ********************************
94
95 // --- init -----------------------------------------------------------------
96
97 // --- get&set --------------------------------------------------------------
98
99 // --- business -------------------------------------------------------------
100
101 // --- object basics --------------------------------------------------------
102
103 }