1   /*
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2024, 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  
15  package ch.qos.logback.classic.boolex;
16  
17  import org.slf4j.Marker;
18  
19  import java.util.List;
20  
21  /**
22   * A helper class to be used in conjunction with {@link ch.qos.logback.classic.boolex.JaninoEventEvaluator}
23   *
24   * @since 1.5.4
25   */
26  public class MarkerList {
27  
28      List<Marker> markers;
29  
30      public MarkerList(List<Marker> markers) {
31          this.markers = markers;
32      }
33  
34      /**
35       * Check whether this list contains a given marker.
36       *
37       * @param markerName
38       * @return
39       */
40      public boolean contains(String markerName) {
41          if(markerName == null || markerName.trim().length() == 0)
42              return false;
43  
44          if(markers == null || markers.isEmpty())
45              return false;
46  
47          final boolean result = markers.stream().anyMatch( m -> m.contains(markerName));
48          return  result;
49      }
50  
51      /**
52       * Return the first marker on the list, can be null.
53       *
54       *
55       * @return the first marker on the list, can be null
56       */
57      public Marker getFirstMarker() {
58          if(markers == null || markers.isEmpty()) {
59              return null;
60          } else {
61              return markers.get(0);
62          }
63      }
64  }