conient/datacomponents/DiskDataComponent.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;
import uk.org.iscream.util.XMLPacket;

/**
 * This is DataComponent specifically for 
 * displaying Disk information.  It displays
 * a value/total type display using a JProgessBar.
 *
 * It does this by extending the StorageDataComponent.
 *
 * @author  $Author: ajm4 $
 * @version $Id: DiskFreeDataComponent.java,v 1.5 2001/03/15 01:05:46 ajm4 Exp $
 */
public class DiskDataComponent extends StorageDataComponent {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.5 $";
    
//---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
     * @param maxAttribute the data attribute to obtain the maximum value from
     * @param mountAttribute the data attribute to obtain the disk mount point
     * @param devAttribute the data attribute to obtain the disk device
     * @param unit the string representation of the units eg, "Mb" or "Kb"
     * @param divider the amount that the given value should be multiplied by to reach the given units
     * @param mountPoint the component that will supply the mount point for this disk
     * @param device the component that will supply the device for this disk
     */
    public DiskDataComponent(String name, String attribute, String maxAttribute, String mountAttribute, String deviceAttribute, String unit, int divider) {
        super(name, attribute, maxAttribute, unit, divider);
        _mountAttribute = mountAttribute;
        _deviceAttribute = deviceAttribute;
    }

//---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() {
        super.run();
        setLabel();
    }
    
//---PRIVATE METHODS---

    private void setLabel() {
        _label.setText(_name + " on " + _mountCache + " (" + _deviceCache + ") : ");
    }

//---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.
     *
     * @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 {
        super.setValue(packet);
        String mountvalue = packet.getParam(_mountAttribute);
        String devicevalue = packet.getParam(_deviceAttribute);

        if (!_mountCache.equals(mountvalue) || !_deviceCache.equals(devicevalue)) {
            _mountCache = mountvalue;
            _deviceCache = devicevalue;
            SwingUtilities.invokeLater(this);
        }
    }        

//---ATTRIBUTES---

    /**
     * Holds the last value of the mountPoint
     */
    private String _mountCache = "";
        
    /**
     * Hold the last value for the device
     */
    private String _deviceCache = "";
    
    /**
     * The device attribute that this component is concerned with
     */
    private String _deviceAttribute;
    
    /**
     * The mount attribute that this component is concerned with
     */
    private String _mountAttribute;

//---STATIC ATTRIBUTES---

}
Revision:	1.1
Committed:	Sun Mar 18 14:43:39 2001 UTC (23 years, 2 months ago) by ajm
Branch:	MAIN
CVS Tags:	PROJECT_COMPLETION
Log Message:	Lots of changes to allow components to have multiple attributes. This now means that data for memory/swap/disks/services are all correctly updated on the display the first time they get data. Rather than before, when they had to have at least two packets to gain all the data and would be slightly wrong. Now it is all fine and dandy...
#	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	import uk.org.iscream.util.XMLPacket;
10
11	/**
12	* This is DataComponent specifically for
13	* displaying Disk information. It displays
14	* a value/total type display using a JProgessBar.
15	*
16	* It does this by extending the StorageDataComponent.
17	*
18	* @author $Author: ajm4 $
19	* @version $Id: DiskFreeDataComponent.java,v 1.5 2001/03/15 01:05:46 ajm4 Exp $
20	*/
21	public class DiskDataComponent extends StorageDataComponent {
22
23	//---FINAL ATTRIBUTES---
24
25	/**
26	* The current CVS revision of this class
27	*/
28	public final String REVISION = "$Revision: 1.5 $";
29
30	//---STATIC METHODS---
31
32	//---CONSTRUCTORS---
33
34	/**
35	* Creates the component with a friendly name to be
36	* used as label
37	*
38	* @param name the friendly name
39	* @param attribute the data attribute we look after
40	* @param maxAttribute the data attribute to obtain the maximum value from
41	* @param mountAttribute the data attribute to obtain the disk mount point
42	* @param devAttribute the data attribute to obtain the disk device
43	* @param unit the string representation of the units eg, "Mb" or "Kb"
44	* @param divider the amount that the given value should be multiplied by to reach the given units
45	* @param mountPoint the component that will supply the mount point for this disk
46	* @param device the component that will supply the device for this disk
47	*/
48	public DiskDataComponent(String name, String attribute, String maxAttribute, String mountAttribute, String deviceAttribute, String unit, int divider) {
49	super(name, attribute, maxAttribute, unit, divider);
50	_mountAttribute = mountAttribute;
51	_deviceAttribute = deviceAttribute;
52	}
53
54	//---PUBLIC METHODS---
55
56	/**
57	* This run method updates any Swing components
58	* The setValue() method adds this component
59	* to the Swing Event Dispatching Queue to
60	* run this method.
61	*/
62	public void run() {
63	super.run();
64	setLabel();
65	}
66
67	//---PRIVATE METHODS---
68
69	private void setLabel() {
70	_label.setText(_name + " on " + _mountCache + " (" + _deviceCache + ") : ");
71	}
72
73	//---ACCESSOR/MUTATOR METHODS---
74
75	/**
76	* This takes the packet to obtain the value from, it then performs all
77	* approriate conversions and adds this class to the Swing Event
78	* Dispatching queue.
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	super.setValue(packet);
85	String mountvalue = packet.getParam(_mountAttribute);
86	String devicevalue = packet.getParam(_deviceAttribute);
87
88	if (!_mountCache.equals(mountvalue) \|\| !_deviceCache.equals(devicevalue)) {
89	_mountCache = mountvalue;
90	_deviceCache = devicevalue;
91	SwingUtilities.invokeLater(this);
92	}
93	}
94
95	//---ATTRIBUTES---
96
97	/**
98	* Holds the last value of the mountPoint
99	*/
100	private String _mountCache = "";
101
102	/**
103	* Hold the last value for the device
104	*/
105	private String _deviceCache = "";
106
107	/**
108	* The device attribute that this component is concerned with
109	*/
110	private String _deviceAttribute;
111
112	/**
113	* The mount attribute that this component is concerned with
114	*/
115	private String _mountAttribute;
116
117	//---STATIC ATTRIBUTES---
118
119	}