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 import java.util.concurrent.ConcurrentHashMap;
28 import java.util.concurrent.ConcurrentMap;
29
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
32
33 /**
34 * Manages instances of {@link SLF4JPlatformLogger}.
35 *
36 * @since 1.3.0
37 * @author Ceki
38 *
39 */
40 public class SLF4JPlarformLoggerFactory {
41 ConcurrentMap<String, SLF4JPlatformLogger> loggerMap = new ConcurrentHashMap<>();
42
43 /**
44 * Return an appropriate {@link SLF4JPlatformLogger} instance by name.
45 */
46 public SLF4JPlatformLogger getLogger(String loggerName) {
47
48
49 SLF4JPlatformLogger spla = loggerMap.get(loggerName);
50 if (spla != null) {
51 return spla;
52 } else {
53 Logger slf4jLogger = LoggerFactory.getLogger(loggerName);
54 SLF4JPlatformLogger newInstance = new SLF4JPlatformLogger(slf4jLogger);
55 SLF4JPlatformLogger oldInstance = loggerMap.putIfAbsent(loggerName, newInstance);
56 return oldInstance == null ? newInstance : oldInstance;
57 }
58 }
59 }