cms/conient/DataPanel.java

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

//---IMPORTS---
import uk.ac.ukc.iscream.util.*;
import java.util.HashMap;
import javax.swing.ImageIcon;
import javax.swing.JTabbedPane;
import javax.swing.JPanel;

/**
 * This thread reads data from the DataReader
 * it then asks the appropriate HostDisplayPanel
 * to update its data.
 *
 * @author  $Author: ajm4 $
 * @version $Id: DataPanel.java,v 1.6 2001/01/24 03:21:26 ajm4 Exp $
 */
public class DataPanel extends JPanel implements Runnable {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.6 $";

//---STATIC METHODS---
    
//---CONSTRUCTORS---

//---PUBLIC METHODS---

    /**
     * Starts the DataPanel running
     */
    public void run() {
        // add the tabbed pane to ourselves
        add(_tabbedPane);
        
        // the hosts we are interested in go here
        HashMap hostList = new HashMap();
        
        try {
            while(_running) {
                
                String xml = (String) _dataQueue.get(_myQueue);
                Conient.setQueueStatus(_dataQueue.queueSize(_myQueue), _dataQueue.elementCount());
                if (xml == null) {
                    // shouldn't really happen...but not sure
                    //_status.insert("No XML to update...",0);
                } else {
                    
                    // Get a string without any null characters in it.
                    //  -- maybe String.trim() would be better ?
                    if (xml.indexOf(0) != -1) {
                        xml = xml.substring(0, xml.indexOf(0));
                    }
                    else {
                        xml = xml.substring(0, xml.length());
                    }
                    
                    // Use XMLPacketMaker to make an XMLPacket object.
                    XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml);
                    XMLPacket packet = xmlPacketMaker.createXMLPacket();
                    String hostName = packet.getParam("packet.attributes.machine_name");
                    if(!hostList.containsKey(hostName)) {
                        
                        HostDisplayPanel host = new HostDisplayPanel();       
                        _tabbedPane.addTab(hostName, _serverIcon, host, "Monitor " + hostName);
                        hostList.put(hostName, host);
                        Conient.addMessage("New Host added: " + hostName);
                    }
                    if (!((HostDisplayPanel) hostList.get(hostName)).updateHost(packet)) {
                        throw new Exception(hostName + " sent an invalid data packet stopping data update!");
                    }
                }
            }
        } catch (Exception e) {
            Conient.addMessage("ERROR: +" + e.getMessage());
        }
    }

    /**
     * This method allows other classes 
     * to shutdown this data panel.
     */
    public void shutdown() {
        _running = false;
    }

//---PRIVATE METHODS---

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

//---ATTRIBUTES---    

    /**
     * The state of this thread.
     */
    boolean _running = true;

    /**
     * Assigns the queue that this panel
     * will use to obtain data
     *
     * @param queue the queue
     */
    public void setQueue(Queue queue) {
        _dataQueue = queue;
        _myQueue = _dataQueue.getQueue();
    }

    /**
     * Removes all the tabs on display
     * Used to tidy up when a new data
     * channel is opened.
     */
    public void cleanUpTabs() {
        _tabbedPane.removeAll();
    }

    /**
     * The tabbed pane is where HostDisplayPanel's
     * are placed
     */
    JTabbedPane _tabbedPane = new JTabbedPane();
    
    /**
     * The queue new data will be read from
     */
    Queue _dataQueue;
    
    /**
     * Our queue number
     */
    int _myQueue;
    
    /**
     * An icon to represent a host
     */
    ImageIcon _serverIcon = new ImageIcon("./uk/ac/ukc/iscream/conient/server.gif");
}
Revision:	1.7
Committed:	Mon Jan 29 17:03:33 2001 UTC (23 years, 4 months ago) by ajm
Branch:	MAIN
Changes since 1.6:	+4 -4 lines
Log Message:	Fixed images appearing - wasn't looking in the right place
#	User	Rev	Content
1	ajm	1.5	//---PACKAGE DECLARATION---
2			package uk.ac.ukc.iscream.conient;
3
4			//---IMPORTS---
5	ajm	1.1	import uk.ac.ukc.iscream.util.*;
6	ajm	1.5	import java.util.HashMap;
7			import javax.swing.ImageIcon;
8			import javax.swing.JTabbedPane;
9			import javax.swing.JPanel;
10
11			/**
12			* This thread reads data from the DataReader
13			* it then asks the appropriate HostDisplayPanel
14			* to update its data.
15			*
16	ajm	1.6	* @author $Author: ajm4 $
17	ajm	1.7	* @version $Id: DataPanel.java,v 1.6 2001/01/24 03:21:26 ajm4 Exp $
18	ajm	1.5	*/
19			public class DataPanel extends JPanel implements Runnable {
20	ajm	1.1
21	ajm	1.5	//---FINAL ATTRIBUTES---
22	ajm	1.2
23	ajm	1.5	/**
24			* The current CVS revision of this class
25			*/
26	ajm	1.7	public final String REVISION = "$Revision: 1.6 $";
27	ajm	1.5
28			//---STATIC METHODS---
29
30			//---CONSTRUCTORS---
31
32			//---PUBLIC METHODS---
33
34			/**
35			* Starts the DataPanel running
36			*/
37	ajm	1.1	public void run() {
38	ajm	1.5	// add the tabbed pane to ourselves
39	ajm	1.2	add(_tabbedPane);
40	ajm	1.5
41			// the hosts we are interested in go here
42	ajm	1.1	HashMap hostList = new HashMap();
43	ajm	1.5
44	ajm	1.1	try {
45	ajm	1.5	while(_running) {
46	ajm	1.1
47			String xml = (String) _dataQueue.get(_myQueue);
48	ajm	1.6	Conient.setQueueStatus(_dataQueue.queueSize(_myQueue), _dataQueue.elementCount());
49	ajm	1.1	if (xml == null) {
50			// shouldn't really happen...but not sure
51			//_status.insert("No XML to update...",0);
52			} else {
53
54			// Get a string without any null characters in it.
55			// -- maybe String.trim() would be better ?
56			if (xml.indexOf(0) != -1) {
57			xml = xml.substring(0, xml.indexOf(0));
58			}
59			else {
60			xml = xml.substring(0, xml.length());
61			}
62
63			// Use XMLPacketMaker to make an XMLPacket object.
64			XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml);
65			XMLPacket packet = xmlPacketMaker.createXMLPacket();
66			String hostName = packet.getParam("packet.attributes.machine_name");
67			if(!hostList.containsKey(hostName)) {
68
69			HostDisplayPanel host = new HostDisplayPanel();
70			_tabbedPane.addTab(hostName, _serverIcon, host, "Monitor " + hostName);
71			hostList.put(hostName, host);
72	ajm	1.6	Conient.addMessage("New Host added: " + hostName);
73	ajm	1.5	}
74			if (!((HostDisplayPanel) hostList.get(hostName)).updateHost(packet)) {
75			throw new Exception(hostName + " sent an invalid data packet stopping data update!");
76			}
77	ajm	1.1	}
78			}
79			} catch (Exception e) {
80	ajm	1.6	Conient.addMessage("ERROR: +" + e.getMessage());
81	ajm	1.1	}
82			}
83
84	ajm	1.5	/**
85			* This method allows other classes
86			* to shutdown this data panel.
87			*/
88			public void shutdown() {
89			_running = false;
90			}
91
92			//---PRIVATE METHODS---
93
94			//---ACCESSOR/MUTATOR METHODS---
95
96			//---ATTRIBUTES---
97
98			/**
99			* The state of this thread.
100			*/
101			boolean _running = true;
102
103			/**
104			* Assigns the queue that this panel
105			* will use to obtain data
106			*
107			* @param queue the queue
108			*/
109	ajm	1.1	public void setQueue(Queue queue) {
110			_dataQueue = queue;
111			_myQueue = _dataQueue.getQueue();
112	tdb	1.4	}
113
114	ajm	1.5	/**
115			* Removes all the tabs on display
116			* Used to tidy up when a new data
117			* channel is opened.
118			*/
119	tdb	1.4	public void cleanUpTabs() {
120			_tabbedPane.removeAll();
121	ajm	1.1	}
122
123	ajm	1.5	/**
124			* The tabbed pane is where HostDisplayPanel's
125			* are placed
126			*/
127	ajm	1.1	JTabbedPane _tabbedPane = new JTabbedPane();
128	ajm	1.5
129			/**
130			* The queue new data will be read from
131			*/
132	ajm	1.1	Queue _dataQueue;
133	ajm	1.5
134			/**
135			* Our queue number
136			*/
137	ajm	1.1	int _myQueue;
138	ajm	1.5
139			/**
140			* An icon to represent a host
141			*/
142	ajm	1.7	ImageIcon _serverIcon = new ImageIcon("./uk/ac/ukc/iscream/conient/server.gif");
143			}