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root/i-scream/projects/cms/source/conient/uk/org/iscream/cms/conient/datacomponents/UptimeDataComponent.java
Revision: 1.7
Committed: Tue May 21 16:47:10 2002 UTC (22 years ago) by tdb
Branch: MAIN
Changes since 1.6: +2 -1 lines
Log Message:
Added URL to GPL headers.

File Contents

# Content
1 /*
2 * i-scream central monitoring system
3 * http://www.i-scream.org.uk
4 * Copyright (C) 2000-2002 i-scream
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 //---PACKAGE DECLARATION---
22 package uk.org.iscream.cms.conient.datacomponents;
23
24 //---IMPORTS---
25 import javax.swing.JLabel;
26 import java.awt.GridLayout;
27 import java.util.Date;
28 import java.text.DateFormat;
29 import javax.swing.SwingUtilities;
30 import uk.org.iscream.cms.server.util.DateUtils;
31 import uk.org.iscream.cms.server.util.XMLPacket;
32
33 /**
34 * This is DataComponent specifically for converting
35 * uptime into a nice format.
36 *
37 * As this is essentially just string data we just
38 * extend StringDataComponent, intercepting the value
39 * to convert it.
40 *
41 * @author $Author: tdb $
42 * @version $Id: UptimeDataComponent.java,v 1.6 2002/05/18 18:15:56 tdb Exp $
43 */
44 public class UptimeDataComponent extends StringDataComponent {
45
46 //---FINAL ATTRIBUTES---
47
48 //---STATIC METHODS---
49
50 //---CONSTRUCTORS---
51
52 /**
53 * Creates the component with a friendly name to be
54 * used as label, but as we're a very basic
55 * extension of StringDataComponent, we just construct
56 * that.
57 *
58 * @param name the friendly name
59 * @param attribute the data attribute we look after
60 */
61 public UptimeDataComponent(String name, String attribute) {
62 super(name, attribute);
63 }
64
65 //---PUBLIC METHODS---
66
67 //---PRIVATE METHODS---
68
69 //---ACCESSOR/MUTATOR METHODS---
70
71 /**
72 * This takes the packet to obtain the value from, it then performs all
73 * approriate conversions and adds this class to the Swing Event
74 * Dispatching queue.
75 *
76 * In this case all we do is change string and pass it to our
77 * super class for displaying. Note that we need to *1000
78 * as the data standard is for time in seconds, but java likes
79 * milliseconds.
80 *
81 * @param packet the XMLPacket to get the data from
82 * @throws DataFormatException if there was a problem converting the data for display
83 */
84 public void setValue(XMLPacket packet) throws DataFormatException {
85 String value = packet.getParam(_attribute);
86 try {
87 if(!_ourCache.equals(value)) {
88 _ourCache = value;
89 _cache = DateUtils.formatTime(Long.parseLong(value), "%DAYS% days %HOURS% hours %MINS% mins");
90 SwingUtilities.invokeLater(this);
91 }
92 } catch (Exception e) {
93 throw new DataFormatException(value + " is an invalid data type for " + toString());
94 }
95 }
96
97 //---ATTRIBUTES---
98
99 /**
100 * Remembers what the last value was, so we
101 * only update if we have to.
102 */
103 String _ourCache = "";
104
105 //---STATIC ATTRIBUTES---
106
107 }