1 /**
2 * Logback: the reliable, generic, fast and flexible logging framework.
3 * Copyright (C) 1999-2011, 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 }