View Javadoc
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 java.util.ArrayList;
28  import java.util.List;
29  import java.util.Map;
30  import java.util.concurrent.ConcurrentHashMap;
31  import java.util.concurrent.LinkedBlockingQueue;
32  
33  import org.slf4j.ILoggerFactory;
34  import org.slf4j.Logger;
35  import org.slf4j.event.SubstituteLoggingEvent;
36  
37  /**
38   * SubstituteLoggerFactory manages instances of {@link SubstituteLogger}.
39   *
40   * @author Ceki Gülcü
41   * @author Chetan Mehrotra
42   */
43  public class SubstituteLoggerFactory implements ILoggerFactory {
44  
45      volatile boolean postInitialization = false;
46  
47      final Map<String, SubstituteLogger> loggers = new ConcurrentHashMap<>();
48  
49      final LinkedBlockingQueue<SubstituteLoggingEvent> eventQueue = new LinkedBlockingQueue<>();
50  
51      synchronized public Logger getLogger(String name) {
52          SubstituteLogger logger = loggers.get(name);
53          if (logger == null) {
54              logger = new SubstituteLogger(name, eventQueue, postInitialization);
55              loggers.put(name, logger);
56          }
57          return logger;
58      }
59  
60      public List<String> getLoggerNames() {
61          return new ArrayList<>(loggers.keySet());
62      }
63  
64      public List<SubstituteLogger> getLoggers() {
65          return new ArrayList<>(loggers.values());
66      }
67  
68      public LinkedBlockingQueue<SubstituteLoggingEvent> getEventQueue() {
69          return eventQueue;
70      }
71  
72      public void postInitialization() {
73          postInitialization = true;
74      }
75  
76      public void clear() {
77          loggers.clear();
78          eventQueue.clear();
79      }
80  }