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root/i-scream/projects/cms/source/host/java/SystemMonitor.java

Comparing projects/cms/source/host/java/SystemMonitor.java (file contents):
Revision 1.1 by ab11, Mon Nov 27 19:44:32 2000 UTC vs.
Revision 1.4 by ab11, Thu Nov 30 17:33:36 2000 UTC

#	Line 1 | Line 1
1	+	//---PACKAGE DECLARATION---
2	+
3	+	//---IMPORTS---
4	+
5	+	import java.util.Random;
6	+
7	+	/**
8	+	* Gathers system information then outputs it as XML
9	+	* Collects data based on properties gained from the configurator
10	+	* then packages these up using XMLFormatter and outputs them if
11	+	* the timeout has passed.
12	+	*
13	+	* @author  $Author$
14	+	* @version $Id$
15	+	*/
16		class SystemMonitor {
17
18	<	public SystemMonitor( Config config ){
4	<	// create a new instace, get the info we need out of config
5	<	// like things to monitor
6	<
7	<	lastCheck = System.currentTimeMillis();
8	<	sequence = 0;
18	>	//---FINAL ATTRIBUTES---
19
20	+	//---STATIC METHODS---
21
22	<	// why oh why wont ultra edit let me put Long in the next line? oh its trying to
12	<	// correct keywords =|
13	<	checkInterval = Long.parseLong(config.getProperty("UDPINTEVAL"));
14	<
15	<	}
22	>	//---CONSTRUCTORS---
23
24	<	public String getInfo(){
25	<	// called to retrieve the stored averages and output them as a XML string
26	<	XMLFormatter xml = new XMLFormatter("packet");
27	<
28	<	// just send some dummy info for now.
29	<	xml.addNest("packet_info");
30	<	String currentTime = Long.toString(System.currentTimeMillis());
31	<	xml.addElement("date_time", currentTime );
32	<	xml.addElement("sequence", Integer.toString(sequence));
33	<	xml.closeNest();
34	<	xml.addNest("core");
28	<	xml.addElement("cpu","100");
29	<	xml.addElement("memory","200");
30	<	xml.closeNest();
31	<	xml.addNest("additional");
32	<	xml.addElement("users","20");
33	<	xml.closeNest();
34	<
35	<	// MUST FIX THIS..!!!!
36	<	while ( System.currentTimeMillis() < ( lastCheck + checkInterval ) ){
37	<	// errm do nothing.. block or something.
38	<	}
39	<
40	<	// increment sequence.
41	<	sequence++;
42	<
43	<	// finally return a string
44	<	return xml.returnXML();
45	<	} // getinfo()
24	>	/**
25	>	* Public constructor for the class. Takes in a Config object to gain its
26	>	* properties from.
27	>	*
28	>	*/
29	>	public SystemMonitor( Config config ){
30	>	// create a new instace, get the info we need out of config
31	>	// like things to monitor
32	>
33	>	lastCheck = System.currentTimeMillis();
34	>	sequence = 0;
35
36	<	// last time the system data was returned.
36	>
37	>	// why oh why wont ultra edit let me put Long in the next line? oh its trying to
38	>	// correct keywords =|
39	>	try {
40	>	udpcheckInterval = Long.parseLong(config.getProperty("UDPUpdateTime")) * 1000;
41	>	}
42	>	catch ( NumberFormatException e ){
43	>	System.out.println("The value for UDPUpdateTime is invalid, using a default");
44	>	// 5 mins
45	>	udpcheckInterval = 5000 * 60;
46	>	}
47	>	// make the check interval into seconds
48	>
49	>	}
50	>
51	>	//---PUBLIC METHODS---
52	>
53	>	/**
54	>	* Gathers system information and will black until the timeout has passed.
55	>	*
56	>	* @return the system information in an XML packet
57	>	*/
58	>	public String getInfo(){
59	>	// called to retrieve the stored averages and output them as a XML string
60	>	XMLFormatter xml = new XMLFormatter("packet");
61	>
62	>	Random rand = new Random();
63	>
64	>	// just send some dummy info for now.
65	>	xml.addNest("packet_info");
66	>	String currentTime = Long.toString(System.currentTimeMillis());
67	>	xml.addElement("date_time", currentTime );
68	>	xml.addElement("sequence", Integer.toString(sequence));
69	>	xml.closeNest();
70	>	xml.addNest("core");
71	>	xml.addElement("cpu",""+rand.nextInt(100));
72	>	xml.addElement("memory",""+rand.nextInt(100));
73	>	xml.closeNest();
74	>	if ( rand.nextBoolean() ){
75	>	xml.addNest("additional");
76	>	xml.addElement("users",""+rand.nextInt(30));
77	>	xml.closeNest();
78	>	}
79	>	// MUST FIX THIS..!!!!
80	>	try {
81	>	long updateIn = ( lastCheck + udpcheckInterval )-System.currentTimeMillis();
82	>	if ( updateIn > 0 ){
83	>	Thread.sleep(updateIn);
84	>	}
85	>	else
86	>	{
87	>	Thread.sleep(defaultUpdateTime);
88	>	}
89	>	}
90	>	catch( InterruptedException e ){
91	>	System.out.println("Sleep interrupted");
92	>	}
93	>
94	>	// increment sequence.
95	>	sequence++;
96	>	lastCheck = System.currentTimeMillis();
97	>
98	>	// finally return a string
99	>	return xml.returnXML();
100	>	} // getinfo()
101	>
102	>	//---PRIVATE METHODS---
103	>
104	>	//---ACCESSOR/MUTATOR METHODS---
105	>
106	>	//---ATTRIBUTES---
107	>
108		private long lastCheck;
109		private int sequence;
110	<	private long checkInterval;
110	>	private long udpcheckInterval;
111	>	private final long defaultUpdateTime = 60000;
112	>
113	>	//---STATIC ATTRIBUTES---
114
115		} // class

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