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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.monitor.integration;
20  
21  import javax.management.ObjectName;
22  
23  import org.eclipse.jetty.monitor.triggers.AttrEventTrigger;
24  
25  
26  /**
27   * @param <TYPE> the trigger type
28   */
29  public class JavaMonitorTrigger <TYPE extends Comparable<TYPE>>
30      extends AttrEventTrigger<TYPE>
31  {
32      private final String _id;
33      private final String _name;
34      private final boolean _dynamic;
35      private int _count;
36      
37      /* ------------------------------------------------------------ */
38      public JavaMonitorTrigger(ObjectName nameObject, String attributeName, String id, String name, boolean dynamic)
39          throws IllegalArgumentException
40      {   
41          super(nameObject, attributeName);
42        
43          _id = id;
44          _name = name;
45          _dynamic = dynamic;
46      }
47      
48      /* ------------------------------------------------------------ */
49      /**
50       * @see org.eclipse.jetty.monitor.triggers.AttrEventTrigger#match(java.lang.Comparable)
51       */
52      @Override
53      public boolean match(Comparable<TYPE> value)
54      {
55          return _dynamic ? true : (_count++ < 1);
56      }
57      
58      protected boolean getSaveAll()
59      {
60          return false;
61      }
62      
63      @Override
64      public String getID()
65      {
66          return _id;
67      }
68      
69      @Override
70      public String getNameString()
71      {
72          return _name;
73      }
74  }