1 /**
2 * Copyright (c) 2004-2011 QOS.ch
3 * All rights reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25 package org.slf4j.impl;
26
27 import org.slf4j.ILoggerFactory;
28 import org.slf4j.LoggerFactory;
29 import org.slf4j.spi.LoggerFactoryBinder;
30
31 /**
32 * The binding of {@link LoggerFactory} class with an actual instance of
33 * {@link ILoggerFactory} is performed using information returned by this class.
34 *
35 * @author Ceki Gülcü
36 */
37 public class StaticLoggerBinder implements LoggerFactoryBinder {
38
39 /**
40 * The unique instance of this class.
41 */
42 private static final StaticLoggerBinder SINGLETON = new StaticLoggerBinder();
43
44 /**
45 * Return the singleton of this class.
46 *
47 * @return the StaticLoggerBinder singleton
48 */
49 public static final StaticLoggerBinder getSingleton() {
50 return SINGLETON;
51 }
52
53 /**
54 * Version tag used to check compatibility. The value of this field is
55 * modified with each release.
56 */
57
58 //to avoid constant folding by the compiler, this field must *not* be final
59 public static String REQUESTED_API_VERSION = "1.6";
60
61 // Binding specific code:
62 private static final String loggerFactoryClassStr = JCLLoggerFactory.class
63 .getName();
64
65 /**
66 * The ILoggerFactory instance returned by the {@link #getLoggerFactory}
67 * method should always be the same object
68 */
69 private final ILoggerFactory loggerFactory;
70
71 private StaticLoggerBinder() {
72 // Binding specific code:
73 loggerFactory = new JCLLoggerFactory();
74 }
75
76 public ILoggerFactory getLoggerFactory() {
77 return loggerFactory;
78 }
79
80 public String getLoggerFactoryClassStr() {
81 return loggerFactoryClassStr;
82 }
83 }