client/monitors/CPU__Monitor.java

//---PACKAGE DECLARATION---
package uk.ac.ukc.iscream.client.monitors;

//---IMPORTS---
import java.util.HashMap;
import uk.ac.ukc.iscream.client.*;
import uk.ac.ukc.iscream.core.*;
import uk.ac.ukc.iscream.util.*;
import uk.ac.ukc.iscream.componentmanager.*;

/**
 * This Monitor watches the CPU load for all machines
 *
 * @author  $Author: tdb1 $
 * @version $Id: CPU__Monitor.java,v 1.16 2001/03/06 22:35:01 tdb1 Exp $
 */
public class CPU__Monitor extends MonitorSkeleton {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.16 $";
    
    public final String DESC = "Monitors CPU.";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

//---PUBLIC METHODS---

    public void analysePacket(XMLPacket packet) {
        if (packet.getParam("packet.attributes.type").equals("data")) {
            String source = packet.getParam("packet.attributes.machine_name");
            if (!_hosts.containsKey(source)) {
                _hosts.put(source, new Register(source, _name, _attributes.length));
            }
            
            Register reg = (Register) _hosts.get(source);
            for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) {
                // find out the threshold level we're at
                String attribute = _attributes[attributeNum];
                String attributeName = _attributeNames[attributeNum];
                String currentValue = packet.getParam(attribute);
                int newThreshold = checkAttributeThreshold(currentValue, reg);
                processAlert(newThreshold, attributeNum, attributeName, reg, source, currentValue);
            }
        }
    }

    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * This uses the uk.ac.ukc.iscream.util.NameFormat class
     * to format the toString()
     *
     * @return the name of this class and its CVS revision
     */
    public String toString() {
        return FormatName.getName(
            _name,
            getClass().getName(),
            REVISION);
    }

    /**
     * return the String representation of what the monitor does
     */
    public String getDescription(){
        return DESC;
    }

//---PRIVATE METHODS---

    private int checkAttributeThreshold(String attributeString, Register reg) {
        for(int thresholdLevel = Alert.thresholdLevels.length - 1; thresholdLevel >= 0; thresholdLevel--) {
            if (reg.getThreshold(thresholdLevel) != -1.0) {
                if(attributeString != null) {
                    try {
                        double attribute = Double.parseDouble(attributeString);
                        if (reg.getThreshold(thresholdLevel) < attribute) return thresholdLevel;
                    } catch (NumberFormatException e) {
                        // we got some duff data in the packet, but we shouldn't have
                        _logger.write(toString(), Logger.DEBUG, "possible errenous packet data, should be double value - " + attributeString);
                    }
                }
            }
        }
        return Alert.thresholdNORMAL;
    }

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

//---ATTRIBUTES---

    /**
     * This is the friendly identifier of the
     * component this class is running in.
     * eg, a Filter may be called "filter1",
     * If this class does not have an owning
     * component,  a name from the configuration
     * can be placed here.  This name could also
     * be changed to null for utility classes.
     */
    private String _name = "CPU";
    
    /**
     * A reference to the configuration proxy in use
     */
    private ConfigurationProxy _cp = ConfigurationProxy.getInstance();

    private HashMap _hosts = new HashMap();

    private String[] _attributes = { "packet.cpu.user", "packet.cpu.kernel", "packet.cpu.iowait", "packet.cpu.swap" };
    private String[] _attributeNames = {"User CPU", "Kernel CPU", "I/O Wait CPU", "Swap CPU"};

//---STATIC ATTRIBUTES---

}
Revision:	1.17
Committed:	Tue Mar 6 23:44:08 2001 UTC (23 years, 3 months ago) by ajm
Branch:	MAIN
Changes since 1.16:	+6 -5 lines
Log Message:	Now displays the attribute name correctly.
#	User	Rev	Content
1	tdb	1.1	//---PACKAGE DECLARATION---
2			package uk.ac.ukc.iscream.client.monitors;
3
4			//---IMPORTS---
5	ajm	1.9	import java.util.HashMap;
6	tdb	1.1	import uk.ac.ukc.iscream.client.*;
7			import uk.ac.ukc.iscream.core.*;
8			import uk.ac.ukc.iscream.util.*;
9			import uk.ac.ukc.iscream.componentmanager.*;
10
11			/**
12			* This Monitor watches the CPU load for all machines
13			*
14	ajm	1.17	* @author $Author: tdb1 $
15			* @version $Id: CPU__Monitor.java,v 1.16 2001/03/06 22:35:01 tdb1 Exp $
16	tdb	1.1	*/
17	tdb	1.16	public class CPU__Monitor extends MonitorSkeleton {
18	tdb	1.1
19			//---FINAL ATTRIBUTES---
20
21			/**
22			* The current CVS revision of this class
23			*/
24	ajm	1.17	public final String REVISION = "$Revision: 1.16 $";
25	tdb	1.1
26			public final String DESC = "Monitors CPU.";
27
28			//---STATIC METHODS---
29
30			//---CONSTRUCTORS---
31
32			//---PUBLIC METHODS---
33
34			public void analysePacket(XMLPacket packet) {
35	ajm	1.7	if (packet.getParam("packet.attributes.type").equals("data")) {
36	tdb	1.8	String source = packet.getParam("packet.attributes.machine_name");
37	ajm	1.9	if (!_hosts.containsKey(source)) {
38	ajm	1.11	_hosts.put(source, new Register(source, _name, _attributes.length));
39	ajm	1.2	}
40	ajm	1.9
41			Register reg = (Register) _hosts.get(source);
42	ajm	1.11	for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) {
43			// find out the threshold level we're at
44	ajm	1.17	String attribute = _attributes[attributeNum];
45			String attributeName = _attributeNames[attributeNum];
46			String currentValue = packet.getParam(attribute);
47	tdb	1.16	int newThreshold = checkAttributeThreshold(currentValue, reg);
48			processAlert(newThreshold, attributeNum, attributeName, reg, source, currentValue);
49	ajm	1.11	}
50	ajm	1.2	}
51	tdb	1.1	}
52
53			/**
54			* Overrides the {@link java.lang.Object#toString() Object.toString()}
55			* method to provide clean logging (every class should have this).
56			*
57			* This uses the uk.ac.ukc.iscream.util.NameFormat class
58			* to format the toString()
59			*
60			* @return the name of this class and its CVS revision
61			*/
62			public String toString() {
63			return FormatName.getName(
64			_name,
65			getClass().getName(),
66			REVISION);
67			}
68
69			/**
70	ajm	1.11	* return the String representation of what the monitor does
71	tdb	1.1	*/
72			public String getDescription(){
73			return DESC;
74			}
75
76			//---PRIVATE METHODS---
77
78	ajm	1.11	private int checkAttributeThreshold(String attributeString, Register reg) {
79			for(int thresholdLevel = Alert.thresholdLevels.length - 1; thresholdLevel >= 0; thresholdLevel--) {
80			if (reg.getThreshold(thresholdLevel) != -1.0) {
81			if(attributeString != null) {
82			try {
83			double attribute = Double.parseDouble(attributeString);
84			if (reg.getThreshold(thresholdLevel) < attribute) return thresholdLevel;
85			} catch (NumberFormatException e) {
86			// we got some duff data in the packet, but we shouldn't have
87			_logger.write(toString(), Logger.DEBUG, "possible errenous packet data, should be double value - " + attributeString);
88			}
89	ajm	1.9	}
90			}
91			}
92	tdb	1.16	return Alert.thresholdNORMAL;
93	ajm	1.2	}
94
95	tdb	1.1	//---ACCESSOR/MUTATOR METHODS---
96
97			//---ATTRIBUTES---
98
99			/**
100			* This is the friendly identifier of the
101			* component this class is running in.
102			* eg, a Filter may be called "filter1",
103			* If this class does not have an owning
104			* component, a name from the configuration
105			* can be placed here. This name could also
106			* be changed to null for utility classes.
107			*/
108	ajm	1.11	private String _name = "CPU";
109	ajm	1.2
110			/**
111	ajm	1.11	* A reference to the configuration proxy in use
112	ajm	1.2	*/
113	ajm	1.11	private ConfigurationProxy _cp = ConfigurationProxy.getInstance();
114	ajm	1.9
115			private HashMap _hosts = new HashMap();
116
117			private String[] _attributes = { "packet.cpu.user", "packet.cpu.kernel", "packet.cpu.iowait", "packet.cpu.swap" };
118			private String[] _attributeNames = {"User CPU", "Kernel CPU", "I/O Wait CPU", "Swap CPU"};
119	tdb	1.1
120			//---STATIC ATTRIBUTES---
121
122			}