1 /*
2 * This entire file is sublicensed to you under GPLv3 or (at your option) any
3 * later version. The original copyright notice is retained below.
4 */
5 /**
6 * Copyright (c) 2004-2011 QOS.ch
7 * All rights reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining
10 * a copy of this software and associated documentation files (the
11 * "Software"), to deal in the Software without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 */
28 package org.slf4j.impl;
29
30 import org.slf4j.helpers.BasicMDCAdapter;
31 import org.slf4j.spi.MDCAdapter;
32
33 /**
34 * This implementation is bound to {@link BasicMDCAdapter}.
35 *
36 * @author Ceki Gülcü
37 */
38 public class StaticMDCBinder {
39
40 /**
41 * The unique instance of this class.
42 */
43 public static final StaticMDCBinder SINGLETON = new StaticMDCBinder();
44
45 private StaticMDCBinder() {
46 }
47
48 /**
49 * Return the singleton of this class.
50 *
51 * @return the StaticMDCBinder singleton
52 * @since 1.7.14
53 */
54 public static final StaticMDCBinder getSingleton() {
55 return StaticMDCBinder.SINGLETON;
56 }
57
58 /**
59 * Currently this method always returns an instance of {@link BasicMDCAdapter}
60 * .
61 *
62 * @return never null.
63 */
64 public MDCAdapter getMDCA() {
65 // note that this method is invoked only from within the static initializer
66 // of the org.slf4j.MDC class.
67 return new BasicMDCAdapter();
68 }
69
70 public String getMDCAdapterClassStr() {
71 return BasicMDCAdapter.class.getName();
72 }
73
74 }