host/java/SystemMonitor.java

//---PACKAGE DECLARATION---

//---IMPORTS---

import java.io.*;
import java.net.*;
import java.util.*;

/**
 * Gathers system information then outputs it as XML
 * Collects data based on properties gained from the configurator
 * then packages these up using XMLFormatter and outputs them if
 * the timeout has passed.
 *
 * @author  $Author: tdb1 $
 * @version $Id: SystemMonitor.java,v 1.6 2000/12/07 23:21:13 tdb1 Exp $
 */
class SystemMonitor {

//---FINAL ATTRIBUTES---

//---STATIC METHODS---

//---CONSTRUCTORS---

/**
 * Public constructor for the class. Takes in a Config object to gain its
 * properties from.
 *
 */   
 public SystemMonitor( Config config ){
        // create a new instace, get the info we need out of config
        // like things to monitor
        
        lastCheck = System.currentTimeMillis();
        sequence = 1;


        // why oh why wont ultra edit let me put Long in the next line? oh its trying to 
        // correct keywords =|
        /*
        
        try {
                udpcheckInterval = Long.parseLong(config.getProperty("UDPUpdateTime")) * 1000;
        }
        catch ( NumberFormatException e ){
                System.out.println("The value for UDPUpdateTime is invalid, using a default");
                // 5 mins
                udpcheckInterval = 5000 * 60;
        }
        */
        
        // make the check interval into seconds
        
    }

//---PUBLIC METHODS---

   /**
    * Gathers system information and will black until the timeout has passed.
    *
    * @return the system information in an XML packet
    */
    public String getInfo(){
        // called to retrieve the stored averages and output them as a XML string
        String host = new String();
        String ip = new String();
        try {
            host = InetAddress.getLocalHost().getHostName();
                    ip = InetAddress.getLocalHost().getHostAddress();
        } catch(UnknownHostException e) {
            System.out.println(e);
        }
                String date = Long.toString(System.currentTimeMillis());
        XMLFormatter xml = new XMLFormatter("packet", "machine_name=\""+host+"\" ip=\""+ip+"\" date=\""+date+"\" seq_no=\""+sequence+"\"");

            // get and decode the data
            DecodeCPU_TXT details = new DecodeCPU_TXT();

        // add the decoded info
        xml.addString(details.getItems());
        
        
        /*
        // MUST FIX THIS..!!!!
        try {
                long updateIn = ( lastCheck + udpcheckInterval )-System.currentTimeMillis();
                if ( updateIn > 0 ){
                        Thread.sleep(updateIn);
                }
                else
                { 
                        Thread.sleep(defaultUpdateTime);
                }
        }
        catch( InterruptedException e ){
                System.out.println("Sleep interrupted");
        }
        */
        
        // increment sequence.
        sequence++;
        // lastCheck = System.currentTimeMillis();
                
        // finally return a string 
        return xml.returnXML();
    } // getinfo()
    
//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

//---ATTRIBUTES---

    private long lastCheck;
    private int sequence;

//---STATIC ATTRIBUTES---

} // class
Revision:	1.7
Committed:	Fri Dec 8 15:45:28 2000 UTC (24 years, 10 months ago) by ab11
Branch:	MAIN
Changes since 1.6:	+9 -5 lines
Log Message:	Hacked around to move thread of control away from SystemMonitor
#	User	Rev	Content
1	ab11	1.2	//---PACKAGE DECLARATION---
2
3			//---IMPORTS---
4
5	ab11	1.5	import java.io.*;
6	tdb	1.6	import java.net.*;
7			import java.util.*;
8	ab11	1.3
9	ab11	1.2	/**
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	ab11	1.7	* @author $Author: tdb1 $
16			* @version $Id: SystemMonitor.java,v 1.6 2000/12/07 23:21:13 tdb1 Exp $
17	ab11	1.2	*/
18	ab11	1.1	class SystemMonitor {
19
20	ab11	1.2	//---FINAL ATTRIBUTES---
21
22			//---STATIC METHODS---
23
24			//---CONSTRUCTORS---
25
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	tdb	1.6	sequence = 1;
37	ab11	1.2
38
39			// why oh why wont ultra edit let me put Long in the next line? oh its trying to
40			// correct keywords =\|
41	ab11	1.7	/*
42
43	ab11	1.4	try {
44			udpcheckInterval = Long.parseLong(config.getProperty("UDPUpdateTime")) * 1000;
45			}
46			catch ( NumberFormatException e ){
47			System.out.println("The value for UDPUpdateTime is invalid, using a default");
48			// 5 mins
49			udpcheckInterval = 5000 * 60;
50			}
51	ab11	1.7	*/
52
53	ab11	1.3	// make the check interval into seconds
54	ab11	1.2
55			}
56
57			//---PUBLIC METHODS---
58
59			/**
60			* Gathers system information and will black until the timeout has passed.
61			*
62			* @return the system information in an XML packet
63			*/
64			public String getInfo(){
65			// called to retrieve the stored averages and output them as a XML string
66	tdb	1.6	String host = new String();
67			String ip = new String();
68	ab11	1.5	try {
69	tdb	1.6	host = InetAddress.getLocalHost().getHostName();
70			ip = InetAddress.getLocalHost().getHostAddress();
71			} catch(UnknownHostException e) {
72			System.out.println(e);
73	ab11	1.5	}
74	tdb	1.6	String date = Long.toString(System.currentTimeMillis());
75			XMLFormatter xml = new XMLFormatter("packet", "machine_name=\""+host+"\" ip=\""+ip+"\" date=\""+date+"\" seq_no=\""+sequence+"\"");
76
77			// get and decode the data
78			DecodeCPU_TXT details = new DecodeCPU_TXT();
79
80			// add the decoded info
81	ab11	1.5	xml.addString(details.getItems());
82
83
84	ab11	1.7	/*
85	ab11	1.2	// MUST FIX THIS..!!!!
86	ab11	1.3	try {
87	ab11	1.4	long updateIn = ( lastCheck + udpcheckInterval )-System.currentTimeMillis();
88			if ( updateIn > 0 ){
89			Thread.sleep(updateIn);
90			}
91			else
92			{
93			Thread.sleep(defaultUpdateTime);
94			}
95	ab11	1.3	}
96			catch( InterruptedException e ){
97			System.out.println("Sleep interrupted");
98	ab11	1.2	}
99	ab11	1.7	*/
100	ab11	1.2
101			// increment sequence.
102			sequence++;
103	ab11	1.7	// lastCheck = System.currentTimeMillis();
104	ab11	1.2
105			// finally return a string
106			return xml.returnXML();
107			} // getinfo()
108
109			//---PRIVATE METHODS---
110
111			//---ACCESSOR/MUTATOR METHODS---
112
113			//---ATTRIBUTES---
114	ab11	1.1
115			private long lastCheck;
116			private int sequence;
117	ab11	1.2
118			//---STATIC ATTRIBUTES---
119	ab11	1.1
120			} // class