View Javadoc
1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.classic.pattern;
15  
16  import org.slf4j.Marker;
17  
18  import ch.qos.logback.classic.spi.ILoggingEvent;
19  
20  /**
21   * Return the event's marker value(s).
22   * 
23   * @author Sébastien Pennec
24   */
25  public class MarkerConverter extends ClassicConverter {
26  
27      private static String EMPTY = "";
28  
29      public String convert(ILoggingEvent le) {
30          Marker marker = le.getMarker();
31          if (marker == null) {
32              return EMPTY;
33          } else {
34              return marker.toString();
35          }
36      }
37  
38  }