client/monitors/CPU__Monitor.java

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

//---IMPORTS---
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 1.3 2001/03/02 00:35:52 tdb1 Exp $
 */
public class CPU__Monitor implements Monitor {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.3 $";
    
    public final String DESC = "Monitors CPU.";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

    public CPU__Monitor() {
        _alerterQueue = ClientMain._alerterQueue;
        // get the configuration for this plug-in
        Configuration config = _refman.getCM().getConfiguration(_name);
        _levels = new double[(Alert.alerts).length];
        for (int x = 0; x < Alert.alerts.length; x++) {
            try {
                _levels[x] = Double.parseDouble(config.getProperty("Monitor.CPU.level." + x));
            } catch (NumberFormatException e) {
                _levels[x] = -1;
            } catch (org.omg.CORBA.MARSHAL e2) {
                _levels[x] = -1;
            }
            
        }
    }
//---PUBLIC METHODS---

    public void analysePacket(XMLPacket packet) {
        String source = packet.getParam("packet.attributes.hostname");
        for(int x=0; x < _levels.length; x++) {
            if (_levels[x] != -1) {
                double idle = Double.parseDouble(packet.getParam("packet.cpu.idle"));
                if (_levels[x] < idle) fireAlert(x, source, idle, "idle");
                double user = Double.parseDouble(packet.getParam("packet.cpu.user"));
                if (_levels[x] < user) fireAlert(x, source, user, "user");
                double kernel = Double.parseDouble(packet.getParam("packet.cpu.kernel"));
                if (_levels[x] < kernel) fireAlert(x, source, kernel, "kernel");
                double iowait = Double.parseDouble(packet.getParam("packet.cpu.iowait"));
                if (_levels[x] < iowait) fireAlert(x, source, iowait, "iowait");
                double swap = Double.parseDouble(packet.getParam("packet.cpu.swap"));
                if (_levels[x] < swap) fireAlert(x, source, swap, "swap");
            }
        }
    }

    /**
     * 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 filter does
     */
    public String getDescription(){
        return DESC;
    }

//---PRIVATE METHODS---

    private void fireAlert(int alertLevel, String source, double currentValue, String type) {
        String value = Double.toString(currentValue);
        String thresholdValue = Double.toString(_levels[alertLevel]);
        String attributeName = "CPU " + type;
        Alert alert = new Alert(alertLevel, source, thresholdValue, value, attributeName);
        _alerterQueue.add(alert);
    }

//---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 = ClientMain.NAME;

    /**
     * This holds a reference to the
     * system logger that is being used.
     */
    private Logger _logger = ReferenceManager.getInstance().getLogger();
    
    private double[] _levels;

    private Queue _alerterQueue;
    
    /**
     * A reference to the reference manager in use
     */
    private ReferenceManager _refman = ReferenceManager.getInstance();

//---STATIC ATTRIBUTES---

}
Revision:	1.4
Committed:	Fri Mar 2 01:01:41 2001 UTC (23 years, 3 months ago) by ajm
Branch:	MAIN
Changes since 1.3:	+6 -3 lines
Log Message:	Now catches configuration errors and handles properly
#	User	Rev	Content
1	tdb	1.1	//---PACKAGE DECLARATION---
2			package uk.ac.ukc.iscream.client.monitors;
3
4			//---IMPORTS---
5			import uk.ac.ukc.iscream.client.*;
6			import uk.ac.ukc.iscream.core.*;
7			import uk.ac.ukc.iscream.util.*;
8			import uk.ac.ukc.iscream.componentmanager.*;
9
10			/**
11			* This Monitor watches the CPU load for all machines
12			*
13	ajm	1.4	* @author $Author: tdb1 $
14			* @version $Id: CPU__Monitor.java,v 1.3 2001/03/02 00:35:52 tdb1 Exp $
15	tdb	1.1	*/
16			public class CPU__Monitor implements Monitor {
17
18			//---FINAL ATTRIBUTES---
19
20			/**
21			* The current CVS revision of this class
22			*/
23	ajm	1.4	public final String REVISION = "$Revision: 1.3 $";
24	tdb	1.1
25			public final String DESC = "Monitors CPU.";
26
27			//---STATIC METHODS---
28
29			//---CONSTRUCTORS---
30
31	ajm	1.2	public CPU__Monitor() {
32			_alerterQueue = ClientMain._alerterQueue;
33			// get the configuration for this plug-in
34			Configuration config = _refman.getCM().getConfiguration(_name);
35			_levels = new double[(Alert.alerts).length];
36			for (int x = 0; x < Alert.alerts.length; x++) {
37			try {
38			_levels[x] = Double.parseDouble(config.getProperty("Monitor.CPU.level." + x));
39			} catch (NumberFormatException e) {
40			_levels[x] = -1;
41	ajm	1.4	} catch (org.omg.CORBA.MARSHAL e2) {
42			_levels[x] = -1;
43	ajm	1.2	}
44	ajm	1.4
45	ajm	1.2	}
46			}
47	tdb	1.1	//---PUBLIC METHODS---
48
49			public void analysePacket(XMLPacket packet) {
50	tdb	1.3	String source = packet.getParam("packet.attributes.hostname");
51	ajm	1.2	for(int x=0; x < _levels.length; x++) {
52			if (_levels[x] != -1) {
53			double idle = Double.parseDouble(packet.getParam("packet.cpu.idle"));
54	tdb	1.3	if (_levels[x] < idle) fireAlert(x, source, idle, "idle");
55	ajm	1.2	double user = Double.parseDouble(packet.getParam("packet.cpu.user"));
56	tdb	1.3	if (_levels[x] < user) fireAlert(x, source, user, "user");
57	ajm	1.2	double kernel = Double.parseDouble(packet.getParam("packet.cpu.kernel"));
58	tdb	1.3	if (_levels[x] < kernel) fireAlert(x, source, kernel, "kernel");
59	ajm	1.2	double iowait = Double.parseDouble(packet.getParam("packet.cpu.iowait"));
60	tdb	1.3	if (_levels[x] < iowait) fireAlert(x, source, iowait, "iowait");
61	ajm	1.2	double swap = Double.parseDouble(packet.getParam("packet.cpu.swap"));
62	tdb	1.3	if (_levels[x] < swap) fireAlert(x, source, swap, "swap");
63	ajm	1.2	}
64			}
65	tdb	1.1	}
66
67			/**
68			* Overrides the {@link java.lang.Object#toString() Object.toString()}
69			* method to provide clean logging (every class should have this).
70			*
71			* This uses the uk.ac.ukc.iscream.util.NameFormat class
72			* to format the toString()
73			*
74			* @return the name of this class and its CVS revision
75			*/
76			public String toString() {
77			return FormatName.getName(
78			_name,
79			getClass().getName(),
80			REVISION);
81			}
82
83			/**
84			* return the String representation of what the filter does
85			*/
86			public String getDescription(){
87			return DESC;
88			}
89
90			//---PRIVATE METHODS---
91
92	tdb	1.3	private void fireAlert(int alertLevel, String source, double currentValue, String type) {
93	ajm	1.2	String value = Double.toString(currentValue);
94			String thresholdValue = Double.toString(_levels[alertLevel]);
95			String attributeName = "CPU " + type;
96	tdb	1.3	Alert alert = new Alert(alertLevel, source, thresholdValue, value, attributeName);
97	ajm	1.2	_alerterQueue.add(alert);
98			}
99
100	tdb	1.1	//---ACCESSOR/MUTATOR METHODS---
101
102			//---ATTRIBUTES---
103
104			/**
105			* This is the friendly identifier of the
106			* component this class is running in.
107			* eg, a Filter may be called "filter1",
108			* If this class does not have an owning
109			* component, a name from the configuration
110			* can be placed here. This name could also
111			* be changed to null for utility classes.
112			*/
113			private String _name = ClientMain.NAME;
114
115			/**
116			* This holds a reference to the
117			* system logger that is being used.
118			*/
119			private Logger _logger = ReferenceManager.getInstance().getLogger();
120	ajm	1.2
121			private double[] _levels;
122
123			private Queue _alerterQueue;
124
125			/**
126			* A reference to the reference manager in use
127			*/
128			private ReferenceManager _refman = ReferenceManager.getInstance();
129	tdb	1.1
130			//---STATIC ATTRIBUTES---
131
132			}