1 /**
2 * Copyright (c) 2004-2011 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.simple;
26
27 import java.util.concurrent.ConcurrentHashMap;
28 import java.util.concurrent.ConcurrentMap;
29
30 import org.slf4j.Logger;
31 import org.slf4j.ILoggerFactory;
32
33 /**
34 * An implementation of {@link ILoggerFactory} which always returns
35 * {@link SimpleLogger} instances.
36 *
37 * @author Ceki Gülcü
38 */
39 public class SimpleLoggerFactory implements ILoggerFactory {
40
41 ConcurrentMap<String, Logger> loggerMap;
42
43 public SimpleLoggerFactory() {
44 loggerMap = new ConcurrentHashMap<>();
45 SimpleLogger.lazyInit();
46 }
47
48 /**
49 * Return an appropriate {@link SimpleLogger} instance by name.
50 *
51 * This method will call {@link #createLogger(String)} if the logger
52 * has not been created yet.
53 */
54 public Logger getLogger(String name) {
55 return loggerMap.computeIfAbsent(name, this::createLogger);
56 }
57
58 /**
59 * Actually creates the logger for the given name.
60 */
61 protected Logger createLogger(String name) {
62 return new SimpleLogger(name);
63 }
64
65 /**
66 * Clear the internal logger cache.
67 *
68 * This method is intended to be called by classes (in the same package or
69 * subclasses) for testing purposes. This method is internal. It can be
70 * modified, renamed or removed at any time without notice.
71 *
72 * You are strongly discouraged from calling this method in production code.
73 */
74 protected void reset() {
75 loggerMap.clear();
76 }
77 }