1 /*
2 * Copyright (c) 2012-2022, jcabi.com
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met: 1) Redistributions of source code must retain the above
8 * copyright notice, this list of conditions and the following
9 * disclaimer. 2) Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials provided
12 * with the distribution. 3) Neither the name of the jcabi.com nor
13 * the names of its contributors may be used to endorse or promote
14 * products derived from this software without specific prior written
15 * permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
19 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28 * OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 package com.jcabi.slf4j;
31
32 import lombok.EqualsAndHashCode;
33 import lombok.ToString;
34 import org.slf4j.ILoggerFactory;
35 import org.slf4j.IMarkerFactory;
36 import org.slf4j.helpers.BasicMDCAdapter;
37 import org.slf4j.helpers.BasicMarkerFactory;
38 import org.slf4j.impl.StaticLoggerBinder;
39 import org.slf4j.spi.MDCAdapter;
40 import org.slf4j.spi.SLF4JServiceProvider;
41
42 /**
43 * Service provider.
44 *
45 * <p>The class is thread-safe.
46 *
47 * @since 0.12
48 */
49 @ToString
50 @EqualsAndHashCode
51 public final class MavenSlf4j implements SLF4JServiceProvider {
52
53 /**
54 * Declare the version of the SLF4J API this implementation is compiled
55 * against. The value of this field is usually modified with each release.
56 */
57 @SuppressWarnings("PMD.LongVariable")
58 public static final String REQUESTED_API_VERSION = "2.0.99";
59
60 @Override
61 public void initialize() {
62 // nothing here
63 }
64
65 @Override
66 public ILoggerFactory getLoggerFactory() {
67 return StaticLoggerBinder.getSingleton().getLoggerFactory();
68 }
69
70 @Override
71 public IMarkerFactory getMarkerFactory() {
72 return new BasicMarkerFactory();
73 }
74
75 @Override
76 public MDCAdapter getMDCAdapter() {
77 return new BasicMDCAdapter();
78 }
79
80 @Override
81 public String getRequestedApiVersion() {
82 return MavenSlf4j.REQUESTED_API_VERSION;
83 }
84
85 }