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.jmx;
15
16
17 /* ------------------------------------------------------------ */
18 /**
19 * ConsoleNotifier
20 *
21 * Provides a way to output notification messages to the server console
22 */
23 public class ConsoleNotifier implements EventNotifier
24 {
25 String _messageFormat;
26
27
28 /* ------------------------------------------------------------ */
29 /**
30 * Constructs a new notifier with specified format string
31 *
32 * @param format the {@link java.util.Formatter format string}
33 * @throws IllegalArgumentException
34 */
35 public ConsoleNotifier(String format)
36 throws IllegalArgumentException
37 {
38 if (format == null)
39 throw new IllegalArgumentException("Message format cannot be null");
40
41 _messageFormat = format;
42 }
43
44 /* ------------------------------------------------------------ */
45 /**
46 * @see org.eclipse.jetty.monitor.jmx.EventNotifier#notify(org.eclipse.jetty.monitor.jmx.EventTrigger, org.eclipse.jetty.monitor.jmx.EventState, long)
47 */
48 public void notify(EventTrigger trigger, EventState<?> state, long timestamp)
49 {
50 String output = String.format("%1$tF %1$tT.%1$tL:NOTIFY::", timestamp);
51
52 output += String.format(_messageFormat, state);
53
54 System.out.println(output);
55 }
56 }