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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.boolex;
15  
16  import java.util.ArrayList;
17  import java.util.List;
18  
19  import org.slf4j.Marker;
20  
21  import ch.qos.logback.classic.spi.ILoggingEvent;
22  import ch.qos.logback.core.boolex.EvaluationException;
23  import ch.qos.logback.core.boolex.EventEvaluatorBase;
24  
25  /**
26   * Evaluates to true when the logging event passed as parameter contains one of
27   * the user-specified markers.
28   * 
29   * @author Ceki Gülcü
30   */
31  public class OnMarkerEvaluator extends EventEvaluatorBase<ILoggingEvent> {
32  
33      List<String> markerList = new ArrayList<String>();
34  
35      public void addMarker(String markerStr) {
36          markerList.add(markerStr);
37      }
38  
39      /**
40       * Return true if event passed as parameter contains one of the specified
41       * user-markers.
42       */
43      public boolean evaluate(ILoggingEvent event) throws NullPointerException, EvaluationException {
44  
45          Marker eventsMarker = event.getMarker();
46          if (eventsMarker == null) {
47              return false;
48          }
49  
50          for (String markerStr : markerList) {
51              if (eventsMarker.contains(markerStr)) {
52                  return true;
53              }
54          }
55          return false;
56      }
57  }