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root/i-scream/projects/cms/source/conient/uk/org/iscream/cms/conient/Conient.java

Comparing projects/cms/source/conient/uk/org/iscream/cms/conient/Conient.java (file contents):
Revision 1.8 by ajm, Sat Jan 20 16:06:53 2001 UTC vs.
Revision 1.23 by ajm, Mon Feb 26 18:40:25 2001 UTC

#	Line 1 | Line 1
1		//---PACKAGE DECLARATION---
2	+	package uk.ac.ukc.iscream.conient;
3
4		//---IMPORTS---
5		import javax.swing.*;
6		import javax.swing.border.*;
6	–	import java.awt.Color;
7	–	import uk.ac.ukc.iscream.util.*;
8	–
7		import java.awt.*;
8		import java.awt.event.*;
11	–	import java.net.*;
12	–	import java.io.*;
13	–	import java.util.Date;
14	–	import java.text.DateFormat;
15	–	import java.util.Locale;
16	–	import java.util.HashMap;
17	–	import javax.swing.border.*;
9
10		/**
11	<	* NASTY AND BASIC, PLEASE DON'T COMPLAIN
11	>	* This is the main class of the Conient client.
12		*
13	+	* This sets up the control panel, the data panel
14	+	* and its own display.
15	+	*
16		* @author  $Author$
17		* @version $Id$
18		*/
19	<	public class SwingClient extends JFrame implements Runnable {
19	>	public class Conient extends JFrame {
20
21		//---FINAL ATTRIBUTES---
22
#	Line 30 | Line 24 | public class SwingClient extends JFrame implements Run
24		* The current CVS revision of this class
25		*/
26		public final String REVISION = "$Revision$";
27	+
28	+	/**
29	+	* The initial width of the window
30	+	*/
31	+	private final int DEFAULT_WIDTH = 600;
32
33	<	private final int width = 400;
34	<	private final int height = 700;
33	>	/**
34	>	* The initial height of the window
35	>	*/
36	>	private final int DEFAULT_HEIGHT = 600;
37
38	+	/**
39	+	* The default configuration fle
40	+	* This can be specified on the command line
41	+	*/
42	+	public static final String DEFAULT_CONFIG_FILE = "./etc/default.conf";
43	+
44	+	/**
45	+	* The time in seconds to display the splash
46	+	* screen for
47	+	*/
48	+	public static final int DISPLAY_SPLASH_TIME_SECONDS = 3;
49	+
50		//---STATIC METHODS---
51
52	+	/**
53	+	* The first method that is called.
54	+	* Sets up the various panels
55	+	*
56	+	* @param args the command line arguments
57	+	*/
58		public static void main(String[] args) {
59	<	try {
60	<	String host = null;
61	<	if (args.length != 1) {
62	<	Object response = null;
63	<	while(!(response instanceof String)) {
64	<	response = JOptionPane.showInputDialog(null, "Please enter the name of a server running the I-Scream client interface:", "I-Scream Server", JOptionPane.INFORMATION_MESSAGE);
46	<	}
47	<	host = (String) response;
48	<	} else {
49	<	host = args[0];
50	<	}
59	>	// get the host from the command line if they gave it
60	>	String host = null;
61	>	String configFile = DEFAULT_CONFIG_FILE;
62	>	if (args.length == 1) {
63	>	configFile = args[0];
64	>	}
65
66	<	int port = 4510;
67	<	Socket socket = new Socket(host, port);
54	<	BufferedReader inBound = new BufferedReader(new InputStreamReader(socket.getInputStream()));
55	<	PrintWriter outBound = new PrintWriter(socket.getOutputStream());
66	>	// start the configuration system
67	>	Configuration.initialise(configFile);
68
69	<	Queue dataQueue = new Queue();
70	<	DataReader data = new DataReader(inBound, dataQueue);
69	>	// the data display panel
70	>	DataPanel data = new DataPanel();
71
72	<	SwingClient client = new SwingClient(dataQueue);
73	<	Thread clientThread = new Thread(client);
74	<
75	<	clientThread.start();
76	<	data.start();
72	>	// the control panel
73	>	ControlPanel control = new ControlPanel(data);
74	>
75	>	// the main frame (passed the two panels)
76	>	Conient client = new Conient(data, control);
77	>	conientFrame = (Frame) client;
78	>	Conient.addMessage("Conient {an i-scream Client} © 2001 University of Kent & Project i-scream");
79
80	<	} catch (Exception e) {
81	<	System.err.println("ERROR START: " + e);
68	<	System.exit(1);
69	<	}
80	>	Conient.addMessage("Conient ready.");
81	>
82		}
83
84	+	/**
85	+	* A static accessor, allowing components of the system
86	+	* to get hold of the root frame of the system.
87	+	*
88	+	* see conientFrame attribute for details.
89	+	*
90	+	* @return the root Conient frame
91	+	*/
92	+	public static Frame getFrame() {
93	+	return conientFrame;
94	+	}
95	+
96		//---CONSTRUCTORS---
97
98		/**
99	<	* Creates a new Swing Client.
99	>	* Creates a new Swing Client Frame
100		*/
101	<	public SwingClient(Queue dataQueue) {
78	<
79	<	_dataQueue = dataQueue;
80	<	_myQueue = _dataQueue.getQueue();
101	>	private Conient(JPanel data, JPanel control) {
102		// set up the Frame
103	<	setTitle("I-Scream Client");
104	<	//setSize(width, height);
84	<	setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
85	<	Box box = Box.createVerticalBox();
103	>	super("Conient {an i-scream Client}");
104	>	setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
105
87	–	// create the i-scream logo at the top
88	–	JLabel iscream = new JLabel(new ImageIcon("i-scream.gif"));
89	–	_serverCountLabel = new JLabel("   Monitoring 0 hosts...");
90	–	_serverCountLabel.setForeground( new Color(0, 0, 102));
91	–	Box header = Box.createHorizontalBox();
92	–	header.add(_serverCountLabel);
93	–	header.add(Box.createHorizontalGlue());
94	–	header.add(iscream);
95	–	Box main = Box.createHorizontalBox();
96	–	JButton
106		utton = new JButton("Connect");
107	<
108	<	// set up the text area
109	<	_status.setEditable(false);
110	<	JScrollPane statusPane = new JScrollPane(_status);
102	<	statusPane.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 102)), " Messages "));
103	<
104	<	Box controlPane = Box.createVerticalBox();
105	<	controlPane.add(button);
106	<	//controlPane.add(Box.createVerticalGlue());
107	<	controlPane.add(statusPane);
108	<	main.add(controlPane);
109	<	main.add(_tabbedPane);
107	>	// set what happens when the X in the corner is clicked
108	>	addWindowListener(new WindowAdapter() {
109	>	public void windowClosing(WindowEvent e) {System.exit(0);}
110	>	});
111
112	<	//_tabbedPane.setSelectedIndex(0);
112	>	// add the control pane to the top border
113	>	getContentPane().add(control, "North");
114
115	<	// build the frame
116	<	box.add(header);
117	<	box.add(main);
116	<
117	<	getContentPane().add(box);
115	>	// create a scrollable pane for the data in the centre
116	>	JScrollPane scrollPane = new JScrollPane(data);
117	>	getContentPane().add(scrollPane, "Center");
118
119	<	// show the window
120	<	show();
121	<	_status.insert("Running...\n",0);
122	<	}
119	>	// setup the status panel
120	>	JPanel bottom = new JPanel();
121	>	bottom.setLayout(new BorderLayout());
122	>	_messages.setEditable(false);
123	>	_messages.setRows(3);
124	>	JScrollPane messagesPane = new JScrollPane(_messages);
125	>	messagesPane.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 102)), " Messages "));
126	>	bottom.add(messagesPane, "Center");
127	>	JPanel statusPanel = new JPanel();
128	>	JPanel linkPanel = new JPanel();
129	>	linkPanel.setLayout(new GridLayout(1,2));
130	>	linkPanel.add(_controlStatus);
131	>	linkPanel.add(_dataStatus);
132	>	statusPanel.setLayout(new GridLayout(2,1));
133	>	statusPanel.add(linkPanel);
134	>	statusPanel.add(_queueStatus);
135	>	bottom.add(statusPanel, "South");
136
137	<	//---PUBLIC METHODS---
137	>	// add the status panel to the bottom border
138	>	getContentPane().add(bottom, "South");
139	>
140	>	// a nice icon for the window
141	>	setIconImage((new ImageIcon("./uk/ac/ukc/iscream/conient/server.gif")).getImage());
142
143	<	public void run() {
144	<	HashMap hostList = new HashMap();
143	>	// and just because we can, a silly splash screen
144	>	// of the dudes that did this funky gibble
145	>	Splash splash = new Splash();
146	>	splash.show();
147	>	// wait
148		try {
149	<	while(true) {
150	<
151	<	String xml = (String) _dataQueue.get(_myQueue);
132	<	if (xml == null) {
133	<	// shouldn't really happen...but not sure
134	<	_status.insert("No XML to update...",0);
135	<	} else {
136	<
137	<	// Get a string without any null characters in it.
138	<	//  -- maybe String.trim() would be better ?
139	<	if (xml.indexOf(0) != -1) {
140	<	xml = xml.substring(0, xml.indexOf(0));
141	<	}
142	<	else {
143	<	xml = xml.substring(0, xml.length());
144	<	}
145	<
146	<	// Use XMLPacketMaker to make an XMLPacket object.
147	<	XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml);
148	<	XMLPacket packet = xmlPacketMaker.createXMLPacket();
149	<	String hostName = packet.getParam("packet.attributes.machine_name");
150	<	if(!hostList.containsKey(hostName)) {
151	<	_serverCount++;
152	<	_serverCountLabel.setText("   Monitoring " + _serverCount + " hosts...");
153	<	host = new HostDisplayPanel();
154	<	_tabbedPane.addTab(hostName, _serverIcon, host, "Monitor " + hostName);
155	<	hostList.put(hostName, host);
156	<	_status.insert("New Host added: " + hostName + "\n", 0);
157	<	}
158	<	((HostDisplayPanel) hostList.get(hostName)).updateHost(packet);
159	<	}
160	<	}
161	<	} catch (Exception e) {
162	<	System.err.println("ERROR RUN: " + e);
149	>	Thread.sleep(DISPLAY_SPLASH_TIME_SECONDS * 1000);
150	>	} catch (InterruptedException e) {
151	>	// don't do anything, we don't care
152		}
153	+	//loose the window
154	+	splash.dispose();
155	+	splash = null;
156	+	// show the main window
157	+	show();
158		}
159
160	+	//---PUBLIC METHODS---
161	+
162		//---PRIVATE METHODS---
163	+
164	+	//---ACCESSOR/MUTATOR METHODS---
165	+
166	+	/**
167	+	* Sets the control link status.
168	+	*
169	+	* @param status the message
170	+	*/
171	+	public static void setControlStatus(String status) {
172	+	_controlStatus.setText("Control Link: " + status);
173	+	_controlStatus.repaint();
174	+	}
175
176	<	protected JPanel makeTextPanel(String text, java.awt.Component item) {
177	<	JPanel panel = new JPanel(false);
178	<	JLabel label = new JLabel(text);
179	<	label.setHorizontalAlignment(JLabel.RIGHT);
180	<	//item.setHorizontalAlignment(JLabel.LEFT);
181	<	panel.setLayout(new GridLayout(1, 2));
182	<	panel.add(label);
183	<	panel.add(item);
176	<	return panel;
176	>	/**
177	>	* Sets the data link status.
178	>	*
179	>	* @param status the message
180	>	*/
181	>	public static void setDataStatus(String status) {
182	>	_dataStatus.setText("Data Link: " + status);
183	>	_dataStatus.repaint();
184		}
185
186	+	/**
187	+	* Updates the queue status.
188	+	*
189	+	* @param currentQueue
190	+	* @param numElements
191	+	*/
192	+	public static void setQueueStatus(int currentQueue, int numElements) {
193	+	_queueStatus.setText("Data Queue : " + currentQueue + " Packets Recieved : " + numElements);
194	+	_queueStatus.repaint();
195	+	}
196
197	<	//---ACCESSOR/MUTATOR METHODS---
197	>	/**
198	>	* Adds a system message to the messages list
199	>	*
200	>	* @param message the new message
201	>	*/
202	>	public static void addMessage(String message) {
203	>	_messages.insert(message + "\n", 0);
204	>	}
205
206		//---ATTRIBUTES---
183	–
184	–	HostDisplayPanel host;
185	–	JTabbedPane _tabbedPane = new JTabbedPane();
186	–	Queue _dataQueue;
187	–	int _myQueue;
188	–	JTextArea _status = new JTextArea();
189	–	ImageIcon _serverIcon = new ImageIcon("server.gif");
190	–	JLabel _serverCountLabel;
191	–	int _serverCount = 0;
207
193	–
208		//---STATIC ATTRIBUTES---
209
210	+	/**
211	+	* Displays information about the data link
212	+	*/
213	+	static JLabel _controlStatus = new JLabel("Control Link: Disconnected", JLabel.LEFT);
214	+	{
215	+	_controlStatus.setBorder(new EtchedBorder(EtchedBorder.LOWERED));
216	+	}
217	+
218	+	/**
219	+	* Displays information about the data link
220	+	*/
221	+	static JLabel _dataStatus = new JLabel("Data Link: Disconnected", JLabel.LEFT);
222	+	{
223	+	_dataStatus.setBorder(new EtchedBorder(EtchedBorder.LOWERED));
224	+	}
225	+
226	+	/**
227	+	* Displays information about the inbound data queue.
228	+	*/
229	+	static JLabel _queueStatus = new JLabel(" ", JLabel.LEFT);
230	+	{
231	+	_queueStatus.setBorder(new EtchedBorder(EtchedBorder.LOWERED));
232	+	}
233	+
234	+	/**
235	+	* The place where system messages are written.
236	+	*/
237	+	static JTextArea _messages = new JTextArea();
238	+	{
239	+	_messages.setLineWrap(true);
240	+	}
241	+
242	+	/**
243	+	* Holds a reference to the root frame for Conient
244	+	* This is only used by dialogs (specifically the configurationn
245	+	* dialog) so that it can be modal, please use the accessor.
246	+	*/
247	+	private static Frame conientFrame;
248	+
249	+	//---INNER CLASSES----
250	+
251	+	/**
252	+	* An inner class to display a splash screen
253	+	*/
254	+	private class Splash extends JWindow {
255	+
256	+	/**
257	+	* Constructs a new splash screen
258	+	*/
259	+	public Splash() {
260	+	setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
261	+	JPanel splash = new JPanel();
262	+	splash.setBackground(Color.black);
263	+	JLabel image = new JLabel((new ImageIcon("./uk/ac/ukc/iscream/conient/i-scream-splash.gif")));
264	+	splash.add(image);
265	+	setContentPane(splash);
266	+	Dimension screen = getToolkit().getScreenSize();
267	+	pack();
268	+	setLocation((screen.width - getSize().width) / 2,
269	+	(screen.height - getSize().height) / 2);
270	+
271	+
272	+	}
273	+	}
274		}

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