1 // ========================================================================
2 // Copyright (c) Webtide LLC
3 // ------------------------------------------------------------------------
4 // All rights reserved. This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v1.0
6 // and Apache License v2.0 which accompanies this distribution.
7 // The Eclipse Public License is available at
8 // http://www.eclipse.org/legal/epl-v10.html
9 // The Apache License v2.0 is available at
10 // http://www.opensource.org/licenses/apache2.0.php
11 // You may elect to redistribute this code under either of these licenses.
12 // ========================================================================
13
14 package org.eclipse.jetty.monitor.integration;
15
16 import javax.management.MalformedObjectNameException;
17 import javax.management.ObjectName;
18
19 import org.eclipse.jetty.monitor.triggers.AttrEventTrigger;
20
21
22 /* ------------------------------------------------------------ */
23 /**
24 */
25 public class JavaMonitorTrigger <TYPE extends Comparable<TYPE>>
26 extends AttrEventTrigger<TYPE>
27 {
28 private final String _id;
29 private final String _name;
30 private final boolean _dynamic;
31 private int _count;
32
33 /* ------------------------------------------------------------ */
34 /**
35 * @param nameObject
36 * @param attributeName
37 * @param id
38 * @param dynamic
39 * @throws IllegalArgumentException
40 */
41 public JavaMonitorTrigger(ObjectName nameObject, String attributeName, String id, String name, boolean dynamic)
42 throws IllegalArgumentException
43 {
44 super(nameObject, attributeName);
45
46 _id = id;
47 _name = name;
48 _dynamic = dynamic;
49 }
50
51 /* ------------------------------------------------------------ */
52 /**
53 * @see org.eclipse.jetty.monitor.triggers.AttrEventTrigger#match(java.lang.Comparable)
54 */
55 @Override
56 public boolean match(Comparable<TYPE> value)
57 {
58 return _dynamic ? true : (_count++ < 1);
59 }
60
61 protected boolean getSaveAll()
62 {
63 return false;
64 }
65
66 @Override
67 public String getID()
68 {
69 return _id;
70 }
71
72 @Override
73 public String getNameString()
74 {
75 return _name;
76 }
77 }