conient/datacomponents/DateDataComponent.java

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2002 i-scream
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

//---PACKAGE DECLARATION---
package uk.org.iscream.cms.conient.datacomponents;

//---IMPORTS---
import javax.swing.JLabel;
import java.awt.GridLayout;
import java.util.Date;
import java.text.DateFormat;
import javax.swing.SwingUtilities;
import uk.org.iscream.cms.util.XMLPacket;

/**
 * This is DataComponent specifically for converting
 * time since epoc dates into a nice format.
 *
 * As this is essentially just string data we just
 * extend StringDataComponent, intercepting the value
 * to convert it.
 *
 * @author  $Author: tdb $
 * @version $Id: DateDataComponent.java,v 1.13 2003/02/05 19:35:04 tdb Exp $
 */
public class DateDataComponent extends StringDataComponent {

//---FINAL ATTRIBUTES---

//---STATIC METHODS---

//---CONSTRUCTORS---

    /**
     * Creates the component with a friendly name to be 
     * used as label, but as we're a very basic
     * extension of StringDataComponent, we just construct
     * that.
     *
     * @param name the friendly name
     * @param attribute the data attribute we look after
     */
    public DateDataComponent(String name, String attribute) {
        super(name, attribute);
    }

//---PUBLIC METHODS---

//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---
     
    /**
     * This takes the packet to obtain the value from, it then performs all
     * approriate conversions and adds this class to the Swing Event
     * Dispatching queue.
     *
     * In this case all we do is change string and pass it to our
     * super class for displaying.  Note that we need to *1000
     * as the data standard is for time in seconds, but java likes
     * milliseconds.
     *
     * @param packet the XMLPacket to get the data from
     * @throws DataFormatException if there was a problem converting the data for display
     */
    public void setValue(XMLPacket packet) throws DataFormatException {
        String value = packet.getParam(_attribute);
        try {
            if(!_ourCache.equals(value)) {
                _ourCache = value;
                _cache = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date(Long.parseLong(value) * 1000));
                SwingUtilities.invokeLater(this);
            }
        } catch (Exception e) {
            throw new DataFormatException(value + " is an invalid data type for " + toString());
        }
    }        

//---ATTRIBUTES---

    /**
     * Remembers what the last value was, so we
     * only update if we have to.
     */    
    String _ourCache = "";

//---STATIC ATTRIBUTES---

}
Revision:	1.14
Committed:	Sun Aug 1 10:40:10 2004 UTC (19 years, 9 months ago) by tdb
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.13:	+2 -2 lines
Log Message:	Catch a lot of old URL's and update them. Also remove a couple of old files that aren't used.
#	User	Rev	Content
1	tdb	1.11	/*
2			* i-scream central monitoring system
3	tdb	1.14	* http://www.i-scream.org
4	tdb	1.11	* 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	ajm	1.2	//---PACKAGE DECLARATION---
22	tdb	1.10	package uk.org.iscream.cms.conient.datacomponents;
23	ajm	1.2
24			//---IMPORTS---
25	ajm	1.1	import javax.swing.JLabel;
26			import java.awt.GridLayout;
27			import java.util.Date;
28			import java.text.DateFormat;
29	ajm	1.9	import javax.swing.SwingUtilities;
30	tdb	1.13	import uk.org.iscream.cms.util.XMLPacket;
31	ajm	1.1
32	ajm	1.2	/**
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	tdb	1.11	* @author $Author: tdb $
41	tdb	1.14	* @version $Id: DateDataComponent.java,v 1.13 2003/02/05 19:35:04 tdb Exp $
42	ajm	1.2	*/
43	ajm	1.1	public class DateDataComponent extends StringDataComponent {
44	ajm	1.2
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	ajm	1.3	* @param attribute the data attribute we look after
59	ajm	1.2	*/
60	ajm	1.3	public DateDataComponent(String name, String attribute) {
61			super(name, attribute);
62	ajm	1.1	}
63	ajm	1.2
64			//---PUBLIC METHODS---
65
66			//---PRIVATE METHODS---
67
68			//---ACCESSOR/MUTATOR METHODS---
69
70			/**
71	ajm	1.9	* 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	ajm	1.2	*
75			* In this case all we do is change string and pass it to our
76	ajm	1.5	* 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	ajm	1.2	*
80	ajm	1.9	* @param packet the XMLPacket to get the data from
81	ajm	1.2	* @throws DataFormatException if there was a problem converting the data for display
82			*/
83	ajm	1.9	public void setValue(XMLPacket packet) throws DataFormatException {
84			String value = packet.getParam(_attribute);
85	ajm	1.1	try {
86	ajm	1.9	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	ajm	1.3	}
91	ajm	1.1	} catch (Exception e) {
92	ajm	1.3	throw new DataFormatException(value + " is an invalid data type for " + toString());
93	ajm	1.1	}
94			}
95	ajm	1.2
96			//---ATTRIBUTES---
97	ajm	1.3
98			/**
99	ajm	1.9	* Remembers what the last value was, so we
100	ajm	1.3	* only update if we have to.
101			*/
102	ajm	1.9	String _ourCache = "";
103	ajm	1.2
104			//---STATIC ATTRIBUTES---
105
106	ajm	1.5	}