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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.slf4j;
20  
21  import org.slf4j.ILoggerFactory;
22  import org.slf4j.IMarkerFactory;
23  import org.slf4j.helpers.BasicMarkerFactory;
24  import org.slf4j.helpers.NOPMDCAdapter;
25  import org.slf4j.spi.MDCAdapter;
26  import org.slf4j.spi.SLF4JServiceProvider;
27  
28  public class MavenServiceProvider implements SLF4JServiceProvider {
29  
30      /**
31       * Declare the version of the SLF4J API this implementation is compiled against.
32       * The value of this field is modified with each major release.
33       */
34      // to avoid constant folding by the compiler, this field must *not* be final
35      @SuppressWarnings({"checkstyle:StaticVariableName", "checkstyle:VisibilityModifier"})
36      public static String REQUESTED_API_VERSION = "2.0.99"; // !final
37  
38      private MavenLoggerFactory loggerFactory = new MavenLoggerFactory();
39      private IMarkerFactory markerFactory = new BasicMarkerFactory();
40      private MDCAdapter mdcAdapter = new NOPMDCAdapter();
41  
42      public ILoggerFactory getLoggerFactory() {
43          return loggerFactory;
44      }
45  
46      @Override
47      public IMarkerFactory getMarkerFactory() {
48          return markerFactory;
49      }
50  
51      @Override
52      public MDCAdapter getMDCAdapter() {
53          return mdcAdapter;
54      }
55  
56      @Override
57      public String getRequestedApiVersion() {
58          return REQUESTED_API_VERSION;
59      }
60  
61      @Override
62      public void initialize() {
63          // already initialized
64      }
65  }