conient/datacomponents/CPUDataComponent.java

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

//---IMPORTS---
import javax.swing.JLabel;
import java.awt.GridLayout;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;

/**
 * This is DataComponent specifically for 
 * displaying CPU percentages.
 *
 * It uses the JProgressBar to display the value.
 *
 * @author  $Author: ajm4 $
 * @version $Id: CPUDataComponent.java,v 1.7 2001/02/04 00:06:17 ajm4 Exp $
 */
public class CPUDataComponent extends VisibleDataComponent {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.7 $";
    
//---STATIC METHODS---
    
//---CONSTRUCTORS---

    /**
     * Creates the component with a friendly name to be 
     * used as label
     *
     * @param name the friendly name
     * @param attribute the data attribute we look after
     */
    public CPUDataComponent(String name, String attribute) {
        _name = name;
        _attribute = attribute;
        _label = new JLabel(_name + ": ");
        _label.setHorizontalAlignment(JLabel.RIGHT);
        setLayout(new GridLayout(1, 2));
            _item.setString("-uninitialised-");
        add(_label);
        add(_item);
    }

//---PUBLIC METHODS---

    /**
     * This run method updates any Swing components
     * The setValue() method adds this component
     * to the Swing Event Dispatching Queue to
     * run this method.
     */
    public void run() {
        _item.setString(_cache + "%");
        _item.setValue(new Double(_cache).intValue());
    }

    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * @return the name of this class and its CVS revision
     */
    public String toString() {
        return _name + "(" + _attribute + ")";
    }

//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

    /**
     * This takes the String value of the parameter that this component
     * is monitoring direct from the packet, it then performs all
     * approriate conversions and adds this class to the Swing Event
     * Dispatching queue.
     *
     * @param value the value for this data component
     * @throws DataFormatException if there was a problem converting the data for display
     */
    public void setValue(String value) throws DataFormatException {
        try {
            if(!_cache.equals(value)) {
                _cache = value;
                SwingUtilities.invokeLater(this);
            }
        } catch (Exception e) {
            throw new DataFormatException(value + " is an invalid data type for " + toString());
        }
    }
    
    /**
     * Returns the string showing the packet
     * attribute that the component is looking after
     *
     * @return the packet reference
     */
    public String getPacketAttribute() {
        return _attribute;
    }

//---ATTRIBUTES---

    /**
     * The friendly name of this component
     */
    private String _name;
    
    /**
     * The attribute that this component is concerned with
     */
    private String _attribute;
    
    /**
     * Remebers what the last value was, so we
     * only update if we have to.
     */    
    String _cache = "";
    
    /**
     * The minimum value for the percentage
     */
    private final int _min = 0;
    
    /**
     * The maximum value for the percentage
     */
    private final int _max = 100;
    
    /**
     * The friendly label for this component
     */
    private JLabel _label;
    
    /**
     * The progress bar that we will display CPU
     * percentage data in
     */
    private JProgressBar _item = new JProgressBar(JProgressBar.HORIZONTAL, _min, _max);
    {
        _item.setStringPainted(true);
    }

//---STATIC ATTRIBUTES---

}
Revision:	1.8
Committed:	Thu Mar 15 01:05:46 2001 UTC (23 years, 2 months ago) by ajm
Branch:	MAIN
Changes since 1.7:	+3 -3 lines
Log Message:	The whole bally lot now is under uk.org.iscream ;p
#	Content
1	//---PACKAGE DECLARATION---
2	package uk.org.iscream.conient.datacomponents;
3
4	//---IMPORTS---
5	import javax.swing.JLabel;
6	import java.awt.GridLayout;
7	import javax.swing.JProgressBar;
8	import javax.swing.SwingUtilities;
9
10	/**
11	* This is DataComponent specifically for
12	* displaying CPU percentages.
13	*
14	* It uses the JProgressBar to display the value.
15	*
16	* @author $Author: ajm4 $
17	* @version $Id: CPUDataComponent.java,v 1.7 2001/02/04 00:06:17 ajm4 Exp $
18	*/
19	public class CPUDataComponent extends VisibleDataComponent {
20
21	//---FINAL ATTRIBUTES---
22
23	/**
24	* The current CVS revision of this class
25	*/
26	public final String REVISION = "$Revision: 1.7 $";
27
28	//---STATIC METHODS---
29
30	//---CONSTRUCTORS---
31
32	/**
33	* Creates the component with a friendly name to be
34	* used as label
35	*
36	* @param name the friendly name
37	* @param attribute the data attribute we look after
38	*/
39	public CPUDataComponent(String name, String attribute) {
40	_name = name;
41	_attribute = attribute;
42	_label = new JLabel(_name + ": ");
43	_label.setHorizontalAlignment(JLabel.RIGHT);
44	setLayout(new GridLayout(1, 2));
45	_item.setString("-uninitialised-");
46	add(_label);
47	add(_item);
48	}
49
50	//---PUBLIC METHODS---
51
52	/**
53	* This run method updates any Swing components
54	* The setValue() method adds this component
55	* to the Swing Event Dispatching Queue to
56	* run this method.
57	*/
58	public void run() {
59	_item.setString(_cache + "%");
60	_item.setValue(new Double(_cache).intValue());
61	}
62
63	/**
64	* Overrides the {@link java.lang.Object#toString() Object.toString()}
65	* method to provide clean logging (every class should have this).
66	*
67	* @return the name of this class and its CVS revision
68	*/
69	public String toString() {
70	return _name + "(" + _attribute + ")";
71	}
72
73	//---PRIVATE METHODS---
74
75	//---ACCESSOR/MUTATOR METHODS---
76
77	/**
78	* This takes the String value of the parameter that this component
79	* is monitoring direct from the packet, it then performs all
80	* approriate conversions and adds this class to the Swing Event
81	* Dispatching queue.
82	*
83	* @param value the value for this data component
84	* @throws DataFormatException if there was a problem converting the data for display
85	*/
86	public void setValue(String value) throws DataFormatException {
87	try {
88	if(!_cache.equals(value)) {
89	_cache = value;
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	/**
98	* Returns the string showing the packet
99	* attribute that the component is looking after
100	*
101	* @return the packet reference
102	*/
103	public String getPacketAttribute() {
104	return _attribute;
105	}
106
107	//---ATTRIBUTES---
108
109	/**
110	* The friendly name of this component
111	*/
112	private String _name;
113
114	/**
115	* The attribute that this component is concerned with
116	*/
117	private String _attribute;
118
119	/**
120	* Remebers what the last value was, so we
121	* only update if we have to.
122	*/
123	String _cache = "";
124
125	/**
126	* The minimum value for the percentage
127	*/
128	private final int _min = 0;
129
130	/**
131	* The maximum value for the percentage
132	*/
133	private final int _max = 100;
134
135	/**
136	* The friendly label for this component
137	*/
138	private JLabel _label;
139
140	/**
141	* The progress bar that we will display CPU
142	* percentage data in
143	*/
144	private JProgressBar _item = new JProgressBar(JProgressBar.HORIZONTAL, _min, _max);
145	{
146	_item.setStringPainted(true);
147	}
148
149	//---STATIC ATTRIBUTES---
150
151	}