conient/datacomponents/CPUDataComponent.java

//---PACKAGE DECLARATION---
package uk.ac.ukc.iscream.conient.datacomponents;

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

/**
 * This is DataComponent specifically for 
 * displaying CPU percentages.
 *
 * It uses the JProgressBar to display the value.
 *
 * @author  $Author: ajm4 $
 * @version $Id: CPUDataComponent.java,v 1.3 2001/01/24 01:54:43 ajm4 Exp $
 */
public class CPUDataComponent extends VisibleDataComponent implements DataComponent {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.3 $";
    
//---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));
        add(_label);
        add(_item);
    }

//---PUBLIC METHODS---

    /**
     * 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 displays the data.
     *
     * @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;
                _item.setString(value + "%");
                _item.setValue(new Double(value).intValue()); 
            }
        } catch (Exception e) {
            throw new DataFormatException(value + " is an invalid data type for " + toString());
        }
    }        

//---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:	1.4
Committed:	Wed Jan 24 03:11:14 2001 UTC (23 years, 3 months ago) by ajm
Branch:	MAIN
Changes since 1.3:	+3 -3 lines
Log Message:	all packaged up all javadoc'd still not handling stuff (sockets) right just yet.... but its all in a fit state to be PROPER and continue working and expanding on
#	Content
1	//---PACKAGE DECLARATION---
2	package uk.ac.ukc.iscream.conient.datacomponents;
3
4	//---IMPORTS---
5	import javax.swing.JLabel;
6	import java.awt.GridLayout;
7	import javax.swing.JProgressBar;
8
9	/**
10	* This is DataComponent specifically for
11	* displaying CPU percentages.
12	*
13	* It uses the JProgressBar to display the value.
14	*
15	* @author $Author: ajm4 $
16	* @version $Id: CPUDataComponent.java,v 1.3 2001/01/24 01:54:43 ajm4 Exp $
17	*/
18	public class CPUDataComponent extends VisibleDataComponent implements DataComponent {
19
20	//---FINAL ATTRIBUTES---
21
22	/**
23	* The current CVS revision of this class
24	*/
25	public final String REVISION = "$Revision: 1.3 $";
26
27	//---STATIC METHODS---
28
29	//---CONSTRUCTORS---
30
31	/**
32	* Creates the component with a friendly name to be
33	* used as label
34	*
35	* @param name the friendly name
36	* @param attribute the data attribute we look after
37	*/
38	public CPUDataComponent(String name, String attribute) {
39	_name = name;
40	_attribute = attribute;
41	_label = new JLabel(_name + ": ");
42	_label.setHorizontalAlignment(JLabel.RIGHT);
43	setLayout(new GridLayout(1, 2));
44	add(_label);
45	add(_item);
46	}
47
48	//---PUBLIC METHODS---
49
50	/**
51	* Overrides the {@link java.lang.Object#toString() Object.toString()}
52	* method to provide clean logging (every class should have this).
53	*
54	* @return the name of this class and its CVS revision
55	*/
56	public String toString() {
57	return _name + "(" + _attribute + ")";
58	}
59
60	//---PRIVATE METHODS---
61
62	//---ACCESSOR/MUTATOR METHODS---
63
64	/**
65	* This takes the String value of the parameter that this component
66	* is monitoring direct from the packet, it then performs all
67	* approriate conversions and displays the data.
68	*
69	* @param value the value for this data component
70	* @throws DataFormatException if there was a problem converting the data for display
71	*/
72	public void setValue(String value) throws DataFormatException {
73	try {
74	if(!_cache.equals(value)) {
75	_cache = value;
76	_item.setString(value + "%");
77	_item.setValue(new Double(value).intValue());
78	}
79	} catch (Exception e) {
80	throw new DataFormatException(value + " is an invalid data type for " + toString());
81	}
82	}
83
84	//---ATTRIBUTES---
85
86	/**
87	* The friendly name of this component
88	*/
89	private String _name;
90
91	/**
92	* The attribute that this component is concerned with
93	*/
94	private String _attribute;
95
96	/**
97	* Remebers what the last value was, so we
98	* only update if we have to.
99	*/
100	String _cache = "";
101
102	/**
103	* The minimum value for the percentage
104	*/
105	private final int _min = 0;
106
107	/**
108	* The maximum value for the percentage
109	*/
110	private final int _max = 100;
111
112	/**
113	* The friendly label for this component
114	*/
115	private JLabel _label;
116
117	/**
118	* The progress bar that we will display CPU
119	* percentage data in
120	*/
121	private JProgressBar _item = new JProgressBar(JProgressBar.HORIZONTAL, _min, _max);
122	{
123	_item.setStringPainted(true);
124	}
125
126	//---STATIC ATTRIBUTES---
127
128	}