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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.conient; |
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|
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.util.*; |
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import java.util.HashMap; |
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import javax.swing.ImageIcon; |
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import javax.swing.JTabbedPane; |
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import javax.swing.JPanel; |
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|
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/** |
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* This thread reads data from the DataReader |
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* it then asks the appropriate HostDisplayPanel |
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* to update its data. |
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* |
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* @author $Author: ajm4 $ |
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* @version $Id: DataPanel.java,v 1.11 2001/02/12 13:20:29 ajm4 Exp $ |
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*/ |
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public class DataPanel extends JPanel implements Runnable { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.11 $"; |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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//---PUBLIC METHODS--- |
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|
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/** |
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* Starts the DataPanel running |
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*/ |
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public void run() { |
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// add the tabbed pane to ourselves |
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add(_tabbedPane); |
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|
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// the hosts we are interested in go here |
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HashMap hostList = new HashMap(); |
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|
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try { |
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while(_running) { |
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|
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String xml = (String) _dataQueue.get(_myQueue); |
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Conient.setQueueStatus(_dataQueue.queueSize(_myQueue), _dataQueue.elementCount()); |
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if (xml == null) { |
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// shouldn't really happen...but not sure |
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//_status.insert("No XML to update...",0); |
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} else { |
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|
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// Get a string without any null characters in it. |
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// -- maybe String.trim() would be better ? |
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if (xml.indexOf(0) != -1) { |
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xml = xml.substring(0, xml.indexOf(0)); |
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} |
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else { |
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xml = xml.substring(0, xml.length()); |
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} |
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|
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// Use XMLPacketMaker to make an XMLPacket object. |
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XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml); |
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XMLPacket packet = xmlPacketMaker.createXMLPacket(); |
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String packetType = packet.getParam("packet.attributes.type"); |
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|
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if (packetType.equals("heartbeat") || packetType.equals("data")) { |
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String hostName = packet.getParam("packet.attributes.machine_name"); |
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if(!hostList.containsKey(hostName)) { |
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|
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HostDisplayPanel host = new HostDisplayPanel(hostName); |
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_tabbedPane.addTab(hostName, _serverIcon, host, "Monitor " + hostName); |
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hostList.put(hostName, host); |
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Conient.addMessage("New Host added: " + hostName); |
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} |
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if (!((HostDisplayPanel) hostList.get(hostName)).updateHost(packet)) { |
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//throw new Exception(hostName + " sent an invalid data packet stopping data update!"); |
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Conient.addMessage("WARNING{data panel}: " + hostName + " sent an invalid data or heartbeat packet"); |
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} |
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} else if (packetType.equals("queueStat")) { |
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// check to config to see if we want queueStat packets to be processed or not |
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if(Configuration.getInstance().getProperty("displayQueueInformation") != null) { |
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if (qFrame == null) { |
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qFrame = new QueueFrame(); |
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} |
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qFrame.update(packet); |
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} |
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} else { |
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Conient.addMessage("WARNING{data panel}: and unknown packet type was received - " + packetType); |
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} |
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} |
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} |
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} catch (Exception e) { |
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Conient.addMessage("ERROR{data panel}: +" + e); |
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e.printStackTrace(); |
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} |
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} |
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|
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/** |
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* This method allows other classes |
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* to shutdown this data panel. |
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*/ |
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public void shutdown() { |
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_running = false; |
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} |
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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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//---ATTRIBUTES--- |
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|
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/** |
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* The state of this thread. |
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*/ |
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boolean _running = true; |
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|
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/** |
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* Assigns the queue that this panel |
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* will use to obtain data |
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* |
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* @param queue the queue |
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*/ |
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public void setQueue(Queue queue) { |
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_dataQueue = queue; |
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_myQueue = _dataQueue.getQueue(); |
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} |
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|
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/** |
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* Removes all the tabs on display |
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* Used to tidy up when a new data |
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* channel is opened. |
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*/ |
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public void cleanUpTabs() { |
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_tabbedPane.removeAll(); |
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} |
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|
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/** |
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* The tabbed pane is where HostDisplayPanel's |
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* are placed |
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*/ |
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JTabbedPane _tabbedPane = new JTabbedPane(); |
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|
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/** |
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* The queue new data will be read from |
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*/ |
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Queue _dataQueue; |
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|
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/** |
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* Our queue number |
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*/ |
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int _myQueue; |
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|
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/** |
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* An icon to represent a host |
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*/ |
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ImageIcon _serverIcon = new ImageIcon("./uk/ac/ukc/iscream/conient/server.gif"); |
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|
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/** |
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* A frame to display Queue information |
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* may not always be used - loaded according to config |
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*/ |
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QueueFrame qFrame = null; |
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|
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} |
