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.helpers;
26
27 import org.slf4j.ILoggerFactory;
28 import org.slf4j.Logger;
29
30 import java.util.ArrayList;
31 import java.util.List;
32 import java.util.concurrent.ConcurrentHashMap;
33 import java.util.concurrent.ConcurrentMap;
34
35 /**
36 * SubstituteLoggerFactory manages instances of {@link SubstituteLogger}.
37 *
38 * @author Ceki Gülcü
39 * @author Chetan Mehrotra
40 */
41 public class SubstituteLoggerFactory implements ILoggerFactory {
42
43 final ConcurrentMap<String, SubstituteLogger> loggers = new ConcurrentHashMap<String, SubstituteLogger>();
44
45 public Logger getLogger(String name) {
46 SubstituteLogger logger = loggers.get(name);
47 if (logger == null) {
48 logger = new SubstituteLogger(name);
49 SubstituteLogger oldLogger = loggers.putIfAbsent(name, logger);
50 if (oldLogger != null)
51 logger = oldLogger;
52 }
53 return logger;
54 }
55
56 public List<String> getLoggerNames() {
57 return new ArrayList<String>(loggers.keySet());
58 }
59
60 public List<SubstituteLogger> getLoggers() {
61 return new ArrayList<SubstituteLogger>(loggers.values());
62 }
63
64 public void clear() {
65 loggers.clear();
66 }
67 }