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1   /**
2    * Copyright (c) 2004-2021 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.jdk.platform.logging;
26  
27  /**
28   * Uses {@link SLF4JPlarformLoggerFactory#getLogger(String)} to get a logger
29   * that is adapted for {@link System.Logger}.
30   * 
31   * @since 2.0.0
32   */
33  public class SLF4JSystemLoggerFinder extends System.LoggerFinder {
34  
35      final SLF4JPlarformLoggerFactory platformLoggerFactory = new SLF4JPlarformLoggerFactory();
36      
37      @Override
38      public System.Logger getLogger(String name, Module module) {
39          // JEP 264[1], which introduced the Platform Logging API,
40          // contains the following note:
41          //
42          //  > An implementation of the LoggerFinder service should make it
43          //  > possible to distinguish system loggers (used by system classes
44          //  > from the Bootstrap Class Loader (BCL)) and application loggers
45          //  > (created by an application for its own usage). This distinction
46          //  > is important for platform security. The creator of a logger can
47          //  > pass the class or module for which the logger is created to the
48          //  > LoggerFinder so that the LoggerFinder can figure out which kind
49          //  > of logger to return.
50          //
51          // If backends support this distinction and once `LoggerFactory`'s API 
52          // is updated to forward a module, we should do that here.
53          //
54          // [1] https://openjdk.java.net/jeps/264
55          SLF4JPlatformLogger adapter = platformLoggerFactory.getLogger(name);
56          return adapter;
57      }
58  
59  }