cms/conient/QueueFrame.java

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

//---IMPORTS---
import uk.ac.ukc.iscream.util.*;
import uk.ac.ukc.iscream.conient.datacomponents.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;

/**
 *
 * @author  $Author: ajm4 $
 * @version $Id: QueueFrame.java,v 1.6 2001/03/01 15:48:22 ajm4 Exp $
 */
public class QueueFrame extends JFrame {

//---FINAL ATTRIBUTES---

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

    /**
     *
     */
    public QueueFrame() {
        super("Server Queue Status");
        //addVisibleDataComponent(_conent, new StringDataComponent("Host Name", "packet.attributes.machine_name"));
        
        getContentPane().add(_content, "Center");
        JButton close = new JButton("Close Window");
        close.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                setVisible(false);
            }
        });
        getContentPane().add(close, "South");
        setIconImage((new ImageIcon("./resources/server.gif")).getImage());
        pack();
        setVisible(true);
    }
                  
//---PUBLIC METHODS---

    /**
     * Process an incoming packet, updates the components.
     *
     * @param packet the packet to process
     *
     * @return if the proceesing was successful
     */
    public boolean update(XMLPacket packet) {
        // iterate over the packets data
        boolean displaySucessful = true;
        String queueHashCode = packet.getParam("packet.attributes.hashCode");

        // if there are no components looking after this data
        // create a new StringDataComponent for it
        if(!_queues.containsKey(queueHashCode)) {
            addQueue(packet);
        }

        // try and update the component, if it doesn't like what it gets
        // warn the user and set that this was an unsucessful display
        try {
            updateQueueInformation(packet);
        } catch (DataFormatException e) {
            Conient.addMessage("WARNING{queue frame}: " + e.getMessage());
            displaySucessful = false;
        }
        return displaySucessful;
    }

//---PRIVATE METHODS---

    private void addQueue(XMLPacket packet) {
        HashMap newQueue = new HashMap();
        String queueName = packet.getParam("packet.attributes.name");
        String queueHashCode = packet.getParam("packet.attributes.hashCode");
        VisibleDataComponent date = new DateDataComponent("Last timestamp", "packet.attributes.date");
        VisibleDataComponent total = new StringDataComponent("Total queued to date", "packet.queue.attributes.total");
        VisibleDataComponent hashCode = new StringDataComponent("Internal hash code", "packet.attributes.hashCode");
        newQueue.put("packet.attributes.name", new StringDataComponent("Name", "packet.attributes.name"));
        newQueue.put("packet.queue.attributes.total", total);
        newQueue.put("packet.attributes.date", date);
        newQueue.put("packet.attributes.hashCode", hashCode);
        JPanel newQueueDisplay = new JPanel();
        newQueueDisplay.setLayout(new BoxLayout(newQueueDisplay, BoxLayout.Y_AXIS));
        newQueueDisplay.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 102)), queueName));
        newQueueDisplay.add(date);
        newQueueDisplay.add(total);
        newQueueDisplay.add(hashCode);
        _queuesDisplays.put(queueName, newQueueDisplay);
        try {
            SwingSafeAdd task = new SwingSafeAdd(_content, newQueueDisplay);
            SwingUtilities.invokeAndWait(task);
        } catch (Exception e) {
            // don't care
        }
        pack();
        _queues.put(queueHashCode, newQueue);
    }
        
    private void updateQueueInformation(XMLPacket packet) throws DataFormatException {
        String queueHashCode = packet.getParam("packet.attributes.hashCode");
        
        // if it was a shutdown packet, remove the display
        if (packet.getParam("packet.attributes.shutdown") != null) {
            // *** !!! MAY NOT BE SWING SAFE !!! ***
            JPanel temp = (JPanel)_queuesDisplays.get(queueHashCode);
            temp.setVisible(false);
            _content.remove(temp);
            _queuesDisplays.remove(temp);
            pack();

        // else update the display
        } else {
            HashMap components = (HashMap) _queues.get(queueHashCode);
            Set packetSet = packet.getSet();
            Iterator i = packetSet.iterator();
            while (i.hasNext()) {
                String dataKey = (String) i.next();
                // if there are no components looking after this data
                // create a new StringDataComponent for it
                if(!components.containsKey(dataKey)) {
                    // check if its a disk drive, if it is then we need to deal with it
                    if(dataKey.startsWith("packet.queue.attributes.queue")) {
                        VisibleDataComponent queue = new StringDataComponent("Current length of " + dataKey.substring(dataKey.lastIndexOf('.') + 1), dataKey);
                        components.put(dataKey, queue);
                        try {
                            SwingSafeAdd task = new SwingSafeAdd((JPanel)_queuesDisplays.get(queueHashCode), queue);
                            SwingUtilities.invokeAndWait(task);
                        } catch (Exception e) {
                            // don't care
                        }
                        pack();
                    }
                    // note we ignore all other attributes
                }
                if(components.containsKey(dataKey)) {
                    ((DataComponent) components.get(dataKey)).setValue(packet.getParam(dataKey));
                }
            }
        }
    }

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

//---ATTRIBUTES---

    /**
     * The components that we already know about
     * connected with the attributes they care about
     * are stored here.
     */
    private HashMap _queues = new HashMap();
    private HashMap _queuesDisplays = new HashMap();
    
    private Box _content = Box.createVerticalBox();

//---STATIC ATTRIBUTES---

}
Revision:	1.7
Committed:	Thu Mar 1 16:11:37 2001 UTC (23 years, 2 months ago) by ajm
Branch:	MAIN
Changes since 1.6:	+5 -2 lines
Log Message:	now displays the internal hashcode for the queue
#	User	Rev	Content
1	ajm	1.1	//---PACKAGE DECLARATION---
2			package uk.ac.ukc.iscream.conient;
3
4			//---IMPORTS---
5			import uk.ac.ukc.iscream.util.*;
6			import uk.ac.ukc.iscream.conient.datacomponents.*;
7			import javax.swing.*;
8			import javax.swing.border.*;
9			import java.util.*;
10			import java.awt.*;
11			import java.awt.event.*;
12
13			/**
14			*
15			* @author $Author: ajm4 $
16	ajm	1.7	* @version $Id: QueueFrame.java,v 1.6 2001/03/01 15:48:22 ajm4 Exp $
17	ajm	1.1	*/
18			public class QueueFrame extends JFrame {
19
20			//---FINAL ATTRIBUTES---
21
22			/**
23			* The current CVS revision of this class
24			*/
25	ajm	1.7	public final String REVISION = "$Revision: 1.6 $";
26	ajm	1.1
27			//---STATIC METHODS---
28
29			//---CONSTRUCTORS---
30
31			/**
32			*
33			*/
34			public QueueFrame() {
35			super("Server Queue Status");
36			//addVisibleDataComponent(_conent, new StringDataComponent("Host Name", "packet.attributes.machine_name"));
37
38			getContentPane().add(_content, "Center");
39			JButton close = new JButton("Close Window");
40			close.addActionListener(new ActionListener() {
41			public void actionPerformed(ActionEvent e) {
42	ajm	1.5	setVisible(false);
43	ajm	1.1	}
44			});
45			getContentPane().add(close, "South");
46	ajm	1.4	setIconImage((new ImageIcon("./resources/server.gif")).getImage());
47	ajm	1.1	pack();
48			setVisible(true);
49			}
50
51			//---PUBLIC METHODS---
52
53			/**
54			* Process an incoming packet, updates the components.
55			*
56			* @param packet the packet to process
57			*
58			* @return if the proceesing was successful
59			*/
60			public boolean update(XMLPacket packet) {
61			// iterate over the packets data
62			boolean displaySucessful = true;
63	ajm	1.6	String queueHashCode = packet.getParam("packet.attributes.hashCode");
64	ajm	1.1
65			// if there are no components looking after this data
66			// create a new StringDataComponent for it
67	ajm	1.6	if(!_queues.containsKey(queueHashCode)) {
68	ajm	1.1	addQueue(packet);
69			}
70
71			// try and update the component, if it doesn't like what it gets
72			// warn the user and set that this was an unsucessful display
73			try {
74			updateQueueInformation(packet);
75			} catch (DataFormatException e) {
76			Conient.addMessage("WARNING{queue frame}: " + e.getMessage());
77			displaySucessful = false;
78			}
79			return displaySucessful;
80			}
81
82			//---PRIVATE METHODS---
83
84			private void addQueue(XMLPacket packet) {
85			HashMap newQueue = new HashMap();
86			String queueName = packet.getParam("packet.attributes.name");
87	ajm	1.6	String queueHashCode = packet.getParam("packet.attributes.hashCode");
88	ajm	1.1	VisibleDataComponent date = new DateDataComponent("Last timestamp", "packet.attributes.date");
89			VisibleDataComponent total = new StringDataComponent("Total queued to date", "packet.queue.attributes.total");
90	ajm	1.7	VisibleDataComponent hashCode = new StringDataComponent("Internal hash code", "packet.attributes.hashCode");
91	ajm	1.1	newQueue.put("packet.attributes.name", new StringDataComponent("Name", "packet.attributes.name"));
92			newQueue.put("packet.queue.attributes.total", total);
93			newQueue.put("packet.attributes.date", date);
94	ajm	1.7	newQueue.put("packet.attributes.hashCode", hashCode);
95	ajm	1.1	JPanel newQueueDisplay = new JPanel();
96			newQueueDisplay.setLayout(new BoxLayout(newQueueDisplay, BoxLayout.Y_AXIS));
97			newQueueDisplay.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 102)), queueName));
98			newQueueDisplay.add(date);
99			newQueueDisplay.add(total);
100	ajm	1.7	newQueueDisplay.add(hashCode);
101	ajm	1.1	_queuesDisplays.put(queueName, newQueueDisplay);
102			try {
103			SwingSafeAdd task = new SwingSafeAdd(_content, newQueueDisplay);
104			SwingUtilities.invokeAndWait(task);
105			} catch (Exception e) {
106			// don't care
107			}
108			pack();
109	ajm	1.6	_queues.put(queueHashCode, newQueue);
110	ajm	1.1	}
111
112			private void updateQueueInformation(XMLPacket packet) throws DataFormatException {
113	ajm	1.6	String queueHashCode = packet.getParam("packet.attributes.hashCode");
114	ajm	1.3
115			// if it was a shutdown packet, remove the display
116			if (packet.getParam("packet.attributes.shutdown") != null) {
117			// * !!! MAY NOT BE SWING SAFE !!! *
118	ajm	1.6	JPanel temp = (JPanel)_queuesDisplays.get(queueHashCode);
119	ajm	1.3	temp.setVisible(false);
120			_content.remove(temp);
121			_queuesDisplays.remove(temp);
122			pack();
123
124			// else update the display
125			} else {
126	ajm	1.6	HashMap components = (HashMap) _queues.get(queueHashCode);
127	ajm	1.3	Set packetSet = packet.getSet();
128			Iterator i = packetSet.iterator();
129			while (i.hasNext()) {
130			String dataKey = (String) i.next();
131			// if there are no components looking after this data
132			// create a new StringDataComponent for it
133			if(!components.containsKey(dataKey)) {
134			// check if its a disk drive, if it is then we need to deal with it
135			if(dataKey.startsWith("packet.queue.attributes.queue")) {
136			VisibleDataComponent queue = new StringDataComponent("Current length of " + dataKey.substring(dataKey.lastIndexOf('.') + 1), dataKey);
137			components.put(dataKey, queue);
138			try {
139	ajm	1.6	SwingSafeAdd task = new SwingSafeAdd((JPanel)_queuesDisplays.get(queueHashCode), queue);
140	ajm	1.3	SwingUtilities.invokeAndWait(task);
141			} catch (Exception e) {
142			// don't care
143			}
144			pack();
145	ajm	1.1	}
146	ajm	1.3	// note we ignore all other attributes
147			}
148			if(components.containsKey(dataKey)) {
149			((DataComponent) components.get(dataKey)).setValue(packet.getParam(dataKey));
150	ajm	1.1	}
151			}
152			}
153			}
154
155			//---ACCESSOR/MUTATOR METHODS---
156
157			//---ATTRIBUTES---
158
159			/**
160			* The components that we already know about
161			* connected with the attributes they care about
162			* are stored here.
163			*/
164			private HashMap _queues = new HashMap();
165			private HashMap _queuesDisplays = new HashMap();
166
167			private Box _content = Box.createVerticalBox();
168
169			//---STATIC ATTRIBUTES---
170
171			}