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
#	User	Rev	Content
1	ajm	1.1	//---PACKAGE DECLARATION---
2	ajm	1.8	package uk.org.iscream.conient.datacomponents;
3	ajm	1.1
4			//---IMPORTS---
5			import javax.swing.JLabel;
6			import java.awt.GridLayout;
7			import javax.swing.JProgressBar;
8	ajm	1.5	import javax.swing.SwingUtilities;
9	ajm	1.1
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	ajm	1.8	* @version $Id: CPUDataComponent.java,v 1.7 2001/02/04 00:06:17 ajm4 Exp $
18	ajm	1.1	*/
19	ajm	1.5	public class CPUDataComponent extends VisibleDataComponent {
20	ajm	1.1
21			//---FINAL ATTRIBUTES---
22
23			/**
24			* The current CVS revision of this class
25			*/
26	ajm	1.8	public final String REVISION = "$Revision: 1.7 $";
27	ajm	1.1
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	ajm	1.3	* @param attribute the data attribute we look after
38	ajm	1.1	*/
39	ajm	1.3	public CPUDataComponent(String name, String attribute) {
40			_name = name;
41			_attribute = attribute;
42			_label = new JLabel(_name + ": ");
43	ajm	1.1	_label.setHorizontalAlignment(JLabel.RIGHT);
44			setLayout(new GridLayout(1, 2));
45	ajm	1.7	_item.setString("-uninitialised-");
46	ajm	1.1	add(_label);
47			add(_item);
48			}
49
50			//---PUBLIC METHODS---
51
52	ajm	1.3	/**
53	ajm	1.5	* 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	ajm	1.3	* 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	ajm	1.1	//---PRIVATE METHODS---
74
75			//---ACCESSOR/MUTATOR METHODS---
76
77			/**
78	ajm	1.2	* This takes the String value of the parameter that this component
79	ajm	1.1	* is monitoring direct from the packet, it then performs all
80	ajm	1.5	* approriate conversions and adds this class to the Swing Event
81			* Dispatching queue.
82	ajm	1.1	*
83			* @param value the value for this data component
84	ajm	1.2	* @throws DataFormatException if there was a problem converting the data for display
85	ajm	1.1	*/
86			public void setValue(String value) throws DataFormatException {
87			try {
88	ajm	1.3	if(!_cache.equals(value)) {
89			_cache = value;
90	ajm	1.5	SwingUtilities.invokeLater(this);
91	ajm	1.3	}
92	ajm	1.1	} catch (Exception e) {
93	ajm	1.3	throw new DataFormatException(value + " is an invalid data type for " + toString());
94	ajm	1.1	}
95	ajm	1.7	}
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	ajm	1.1
107			//---ATTRIBUTES---
108
109	ajm	1.3	/**
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	ajm	1.2	/**
126			* The minimum value for the percentage
127			*/
128	ajm	1.1	private final int _min = 0;
129	ajm	1.2
130			/**
131			* The maximum value for the percentage
132			*/
133	ajm	1.1	private final int _max = 100;
134	ajm	1.2
135			/**
136			* The friendly label for this component
137			*/
138	ajm	1.1	private JLabel _label;
139	ajm	1.2
140			/**
141			* The progress bar that we will display CPU
142			* percentage data in
143			*/
144	ajm	1.1	private JProgressBar _item = new JProgressBar(JProgressBar.HORIZONTAL, _min, _max);
145			{
146			_item.setStringPainted(true);
147			}
148	ajm	1.2
149			//---STATIC ATTRIBUTES---
150
151	ajm	1.5	}