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root/i-scream/projects/cms/source/conient/uk/org/iscream/cms/conient/datacomponents/DateDataComponent.java

Comparing projects/cms/source/conient/uk/org/iscream/cms/conient/datacomponents/DateDataComponent.java (file contents):
Revision 1.1 by ajm, Mon Jan 22 03:03:39 2001 UTC vs.
Revision 1.13 by tdb, Wed Feb 5 19:35:04 2003 UTC

#	Line 1 | Line 1
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.util.XMLPacket;
31
32	+	/**
33	+	* This is DataComponent specifically for converting
34	+	* time since epoc dates into a nice format.
35	+	*
36	+	* As this is essentially just string data we just
37	+	* extend StringDataComponent, intercepting the value
38	+	* to convert it.
39	+	*
40	+	* @author  $Author$
41	+	* @version $Id$
42	+	*/
43		public class DateDataComponent extends StringDataComponent {
44	<	public DateDataComponent(String name) {
45	<	super(name);
44	>
45	>	//---FINAL ATTRIBUTES---
46	>
47	>	//---STATIC METHODS---
48	>
49	>	//---CONSTRUCTORS---
50	>
51	>	/**
52	>	* Creates the component with a friendly name to be
53	>	* used as label, but as we're a very basic
54	>	* extension of StringDataComponent, we just construct
55	>	* that.
56	>	*
57	>	* @param name the friendly name
58	>	* @param attribute the data attribute we look after
59	>	*/
60	>	public DateDataComponent(String name, String attribute) {
61	>	super(name, attribute);
62		}
63	<
64	<	public void setValue(String value) throws DataFormatException {
63	>
64	>	//---PUBLIC METHODS---
65	>
66	>	//---PRIVATE METHODS---
67	>
68	>	//---ACCESSOR/MUTATOR METHODS---
69	>
70	>	/**
71	>	* This takes the packet to obtain the value from, it then performs all
72	>	* approriate conversions and adds this class to the Swing Event
73	>	* Dispatching queue.
74	>	*
75	>	* In this case all we do is change string and pass it to our
76	>	* super class for displaying.  Note that we need to *1000
77	>	* as the data standard is for time in seconds, but java likes
78	>	* milliseconds.
79	>	*
80	>	* @param packet the XMLPacket to get the data from
81	>	* @throws DataFormatException if there was a problem converting the data for display
82	>	*/
83	>	public void setValue(XMLPacket packet) throws DataFormatException {
84	>	String value = packet.getParam(_attribute);
85		try {
86	<	value = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date(Long.parseLong(value)));
87	<	super.setValue(value);
86	>	if(!_ourCache.equals(value)) {
87	>	_ourCache = value;
88	>	_cache = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date(Long.parseLong(value) * 1000));
89	>	SwingUtilities.invokeLater(this);
90	>	}
91		} catch (Exception e) {
92	<	throw new DataFormatException("invalid data type for component");
92	>	throw new DataFormatException(value + " is an invalid data type for " + toString());
93		}
94		}
95	<	}
95	>
96	>	//---ATTRIBUTES---
97	>
98	>	/**
99	>	* Remembers what the last value was, so we
100	>	* only update if we have to.
101	>	*/
102	>	String _ourCache = "";
103	>
104	>	//---STATIC ATTRIBUTES---
105	>
106	>	}

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