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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 1.6 by tdb, Thu Dec 7 23:21:13 2000 UTC

#	Line 1 | Line 1
1	+	//---PACKAGE DECLARATION---
2	+
3	+	//---IMPORTS---
4	+
5	+	import java.io.*;
6	+	import java.net.*;
7	+	import java.util.*;
8	+
9	+	/**
10	+	* Gathers system information then outputs it as XML
11	+	* Collects data based on properties gained from the configurator
12	+	* then packages these up using XMLFormatter and outputs them if
13	+	* the timeout has passed.
14	+	*
15	+	* @author  $Author$
16	+	* @version $Id$
17	+	*/
18		class SystemMonitor {
19
20	<	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;
20	>	//---FINAL ATTRIBUTES---
21
22	+	//---STATIC METHODS---
23
24	<	// 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	<	}
24	>	//---CONSTRUCTORS---
25
26	<	public String getInfo(){
27	<	// called to retrieve the stored averages and output them as a XML string
28	<	XMLFormatter xml = new XMLFormatter("packet");
29	<
30	<	// just send some dummy info for now.
31	<	xml.addNest("packet_info");
32	<	String currentTime = Long.toString(System.currentTimeMillis());
33	<	xml.addElement("date_time", currentTime );
34	<	xml.addElement("sequence", Integer.toString(sequence));
35	<	xml.closeNest();
36	<	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()
26	>	/**
27	>	* Public constructor for the class. Takes in a Config object to gain its
28	>	* properties from.
29	>	*
30	>	*/
31	>	public SystemMonitor( Config config ){
32	>	// create a new instace, get the info we need out of config
33	>	// like things to monitor
34	>
35	>	lastCheck = System.currentTimeMillis();
36	>	sequence = 1;
37
38	<	// last time the system data was returned.
38	>
39	>	// why oh why wont ultra edit let me put Long in the next line? oh its trying to
40	>	// correct keywords =|
41	>	try {
42	>	udpcheckInterval = Long.parseLong(config.getProperty("UDPUpdateTime")) * 1000;
43	>	}
44	>	catch ( NumberFormatException e ){
45	>	System.out.println("The value for UDPUpdateTime is invalid, using a default");
46	>	// 5 mins
47	>	udpcheckInterval = 5000 * 60;
48	>	}
49	>	// make the check interval into seconds
50	>
51	>	}
52	>
53	>	//---PUBLIC METHODS---
54	>
55	>	/**
56	>	* Gathers system information and will black until the timeout has passed.
57	>	*
58	>	* @return the system information in an XML packet
59	>	*/
60	>	public String getInfo(){
61	>	// called to retrieve the stored averages and output them as a XML string
62	>	String host = new String();
63	>	String ip = new String();
64	>	try {
65	>	host = InetAddress.getLocalHost().getHostName();
66	>	ip = InetAddress.getLocalHost().getHostAddress();
67	>	} catch(UnknownHostException e) {
68	>	System.out.println(e);
69	>	}
70	>	String date = Long.toString(System.currentTimeMillis());
71	>	XMLFormatter xml = new XMLFormatter("packet", "machine_name=\""+host+"\" ip=\""+ip+"\" date=\""+date+"\" seq_no=\""+sequence+"\"");
72	>
73	>	// get and decode the data
74	>	DecodeCPU_TXT details = new DecodeCPU_TXT();
75	>
76	>	// add the decoded info
77	>	xml.addString(details.getItems());
78	>
79	>
80	>	// MUST FIX THIS..!!!!
81	>	try {
82	>	long updateIn = ( lastCheck + udpcheckInterval )-System.currentTimeMillis();
83	>	if ( updateIn > 0 ){
84	>	Thread.sleep(updateIn);
85	>	}
86	>	else
87	>	{
88	>	Thread.sleep(defaultUpdateTime);
89	>	}
90	>	}
91	>	catch( InterruptedException e ){
92	>	System.out.println("Sleep interrupted");
93	>	}
94	>
95	>	// increment sequence.
96	>	sequence++;
97	>	lastCheck = System.currentTimeMillis();
98	>
99	>	// finally return a string
100	>	return xml.returnXML();
101	>	} // getinfo()
102	>
103	>	//---PRIVATE METHODS---
104	>
105	>	//---ACCESSOR/MUTATOR METHODS---
106	>
107	>	//---ATTRIBUTES---
108	>
109		private long lastCheck;
110		private int sequence;
111	<	private long checkInterval;
111	>	private long udpcheckInterval;
112	>	private final long defaultUpdateTime = 60000;
113	>
114	>	//---STATIC ATTRIBUTES---
115
116		} // class

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