cms/conient/QueueFrame.java

//---PACKAGE DECLARATION---
package uk.org.iscream.conient;

//---IMPORTS---
import uk.org.iscream.util.*;
import uk.org.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 1.11 2001/03/18 17:33:08 ajm4 Exp $
 */
public class QueueFrame extends JFrame {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.11 $";
    
//---STATIC METHODS---
    
//---CONSTRUCTORS---

    /**
     *
     */
    public QueueFrame() {
        super("Server Queue Status");
        //addVisibleDataComponent(_conent, new StringDataComponent("Host Name", "packet.attributes.machine_name"));
        JScrollPane scrollPane = new JScrollPane(_content,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED , JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        getContentPane().add(scrollPane, "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");
        newQueue.put("packet.attributes.name", new StringDataComponent("Name", "packet.attributes.name"));
        newQueue.put("packet.queue.attributes.total", total);
        newQueue.put("packet.attributes.date", date);
        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);
        _queuesDisplays.put(queueHashCode, 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 queue, 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) {
                            // if there was a problem
                            System.err.println("ERROR Failed To Add Component - " + e);
                        }
                        pack();
                    }
                    // note we ignore all other attributes
                }
                if(components.containsKey(dataKey)) {
                    ((DataComponent) components.get(dataKey)).setValue(packet);
                }
            }
        }
    }

//---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:	1.12
Committed:	Mon Mar 19 01:38:16 2001 UTC (23 years, 2 months ago) by ajm
Branch:	MAIN
Changes since 1.11:	+3 -3 lines
Log Message:	A load of minor cosmetic changes, and some swing thread issues cleared up.
#	Content
1	//---PACKAGE DECLARATION---
2	package uk.org.iscream.conient;
3
4	//---IMPORTS---
5	import uk.org.iscream.util.*;
6	import uk.org.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	* @version $Id: QueueFrame.java,v 1.11 2001/03/18 17:33:08 ajm4 Exp $
17	*/
18	public class QueueFrame extends JFrame {
19
20	//---FINAL ATTRIBUTES---
21
22	/**
23	* The current CVS revision of this class
24	*/
25	public final String REVISION = "$Revision: 1.11 $";
26
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	JScrollPane scrollPane = new JScrollPane(_content,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED , JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
38	getContentPane().add(scrollPane, "Center");
39	JButton close = new JButton("Close Window");
40	close.addActionListener(new ActionListener() {
41	public void actionPerformed(ActionEvent e) {
42	setVisible(false);
43	}
44	});
45	getContentPane().add(close, "South");
46	setIconImage((new ImageIcon("./resources/server.gif")).getImage());
47	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	String queueHashCode = packet.getParam("packet.attributes.hashCode");
64
65	// if there are no components looking after this data
66	// create a new StringDataComponent for it
67	if(!_queues.containsKey(queueHashCode)) {
68	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	String queueHashCode = packet.getParam("packet.attributes.hashCode");
88	VisibleDataComponent date = new DateDataComponent("Last timestamp", "packet.attributes.date");
89	VisibleDataComponent total = new StringDataComponent("Total queued to date", "packet.queue.attributes.total");
90	newQueue.put("packet.attributes.name", new StringDataComponent("Name", "packet.attributes.name"));
91	newQueue.put("packet.queue.attributes.total", total);
92	newQueue.put("packet.attributes.date", date);
93	JPanel newQueueDisplay = new JPanel();
94	newQueueDisplay.setLayout(new BoxLayout(newQueueDisplay, BoxLayout.Y_AXIS));
95	newQueueDisplay.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 102)), queueName));
96	newQueueDisplay.add(date);
97	newQueueDisplay.add(total);
98	_queuesDisplays.put(queueHashCode, newQueueDisplay);
99	try {
100	SwingSafeAdd task = new SwingSafeAdd(_content, newQueueDisplay);
101	SwingUtilities.invokeAndWait(task);
102	} catch (Exception e) {
103	// don't care
104	}
105	pack();
106	_queues.put(queueHashCode, newQueue);
107	}
108
109	private void updateQueueInformation(XMLPacket packet) throws DataFormatException {
110	String queueHashCode = packet.getParam("packet.attributes.hashCode");
111
112	// if it was a shutdown packet, remove the display
113	if (packet.getParam("packet.attributes.shutdown") != null) {
114	// * !!! MAY NOT BE SWING SAFE !!! *
115	JPanel temp = (JPanel)_queuesDisplays.get(queueHashCode);
116	temp.setVisible(false);
117	_content.remove(temp);
118	_queuesDisplays.remove(temp);
119	pack();
120
121	// else update the display
122	} else {
123	HashMap components = (HashMap) _queues.get(queueHashCode);
124	Set packetSet = packet.getSet();
125	Iterator i = packetSet.iterator();
126	while (i.hasNext()) {
127	String dataKey = (String) i.next();
128	// if there are no components looking after this data
129	// create a new StringDataComponent for it
130	if(!components.containsKey(dataKey)) {
131	// check if its a queue, if it is then we need to deal with it
132	if(dataKey.startsWith("packet.queue.attributes.queue")) {
133	VisibleDataComponent queue = new StringDataComponent("Current length of " + dataKey.substring(dataKey.lastIndexOf('.') + 1), dataKey);
134	components.put(dataKey, queue);
135	try {
136	SwingSafeAdd task = new SwingSafeAdd((JPanel)_queuesDisplays.get(queueHashCode), queue);
137	SwingUtilities.invokeAndWait(task);
138	} catch (Exception e) {
139	// if there was a problem
140	System.err.println("ERROR Failed To Add Component - " + e);
141	}
142	pack();
143	}
144	// note we ignore all other attributes
145	}
146	if(components.containsKey(dataKey)) {
147	((DataComponent) components.get(dataKey)).setValue(packet);
148	}
149	}
150	}
151	}
152
153	//---ACCESSOR/MUTATOR METHODS---
154
155	//---ATTRIBUTES---
156
157	/**
158	* The components that we already know about
159	* connected with the attributes they care about
160	* are stored here.
161	*/
162	private HashMap _queues = new HashMap();
163	private HashMap _queuesDisplays = new HashMap();
164
165	private Box _content = Box.createVerticalBox();
166
167	//---STATIC ATTRIBUTES---
168
169	}