client/monitors/CPU__Monitor.java

//---PACKAGE DECLARATION---
package uk.org.iscream.client.monitors;

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

/**
 * This Monitor watches the CPU load for all machines
 *
 * @author  $Author: tdb1 $
 * @version $Id: CPU__Monitor.java,v 1.19 2001/03/14 23:25:29 tdb1 Exp $
 */
public class CPU__Monitor extends MonitorSkeleton {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.19 $";
    
    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)) {
                HashMap attributeRegisters = new HashMap();
                initAttributeRegsiters(source, attributeRegisters);
                _hosts.put(source, attributeRegisters);
            }

            HashMap attributeRegisters = (HashMap) _hosts.get(source);
            for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) {
                Register reg = (Register) attributeRegisters.get(_attributes[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, 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.org.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;
    }

    private void initAttributeRegsiters(String source, HashMap attributeRegisters) {
        for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) {
            attributeRegisters.put(_attributes[attributeNum], new Register(source, _name, _attributes[attributeNum].substring(_attributes[attributeNum].lastIndexOf(".") + 1)));
        }
    }

//---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:	1.20
Committed:	Wed Mar 21 23:58:43 2001 UTC (23 years, 2 months ago) by ajm
Branch:	MAIN
Changes since 1.19:	+4 -4 lines
Log Message:	Now uses the new register attribute support to allow specific thresholds for cpu attributes
#	User	Rev	Content
1	tdb	1.1	//---PACKAGE DECLARATION---
2	tdb	1.19	package uk.org.iscream.client.monitors;
3	tdb	1.1
4			//---IMPORTS---
5	ajm	1.9	import java.util.HashMap;
6	tdb	1.19	import uk.org.iscream.client.*;
7			import uk.org.iscream.core.*;
8			import uk.org.iscream.util.*;
9			import uk.org.iscream.componentmanager.*;
10	tdb	1.1
11			/**
12			* This Monitor watches the CPU load for all machines
13			*
14	ajm	1.20	* @author $Author: tdb1 $
15			* @version $Id: CPU__Monitor.java,v 1.19 2001/03/14 23:25:29 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	1.20	public final String REVISION = "$Revision: 1.19 $";
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	1.18	HashMap attributeRegisters = new HashMap();
39			initAttributeRegsiters(source, attributeRegisters);
40			_hosts.put(source, attributeRegisters);
41	ajm	1.2	}
42	ajm	1.18
43			HashMap attributeRegisters = (HashMap) _hosts.get(source);
44	ajm	1.11	for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) {
45	ajm	1.18	Register reg = (Register) attributeRegisters.get(_attributes[attributeNum]);
46	ajm	1.11	// find out the threshold level we're at
47	ajm	1.17	String attribute = _attributes[attributeNum];
48			String attributeName = _attributeNames[attributeNum];
49			String currentValue = packet.getParam(attribute);
50	tdb	1.16	int newThreshold = checkAttributeThreshold(currentValue, reg);
51	ajm	1.18	processAlert(newThreshold, attributeName, reg, source, currentValue);
52	ajm	1.11	}
53	ajm	1.2	}
54	tdb	1.1	}
55
56			/**
57			* Overrides the {@link java.lang.Object#toString() Object.toString()}
58			* method to provide clean logging (every class should have this).
59			*
60	tdb	1.19	* This uses the uk.org.iscream.util.NameFormat class
61	tdb	1.1	* to format the toString()
62			*
63			* @return the name of this class and its CVS revision
64			*/
65			public String toString() {
66			return FormatName.getName(
67			_name,
68			getClass().getName(),
69			REVISION);
70			}
71
72			/**
73	ajm	1.11	* return the String representation of what the monitor does
74	tdb	1.1	*/
75			public String getDescription(){
76			return DESC;
77			}
78
79			//---PRIVATE METHODS---
80
81	ajm	1.11	private int checkAttributeThreshold(String attributeString, Register reg) {
82			for(int thresholdLevel = Alert.thresholdLevels.length - 1; thresholdLevel >= 0; thresholdLevel--) {
83			if (reg.getThreshold(thresholdLevel) != -1.0) {
84			if(attributeString != null) {
85			try {
86			double attribute = Double.parseDouble(attributeString);
87			if (reg.getThreshold(thresholdLevel) < attribute) return thresholdLevel;
88			} catch (NumberFormatException e) {
89			// we got some duff data in the packet, but we shouldn't have
90			_logger.write(toString(), Logger.DEBUG, "possible errenous packet data, should be double value - " + attributeString);
91			}
92	ajm	1.9	}
93			}
94			}
95	tdb	1.16	return Alert.thresholdNORMAL;
96	ajm	1.18	}
97
98			private void initAttributeRegsiters(String source, HashMap attributeRegisters) {
99			for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) {
100	ajm	1.20	attributeRegisters.put(_attributes[attributeNum], new Register(source, _name, _attributes[attributeNum].substring(_attributes[attributeNum].lastIndexOf(".") + 1)));
101	ajm	1.18	}
102	ajm	1.2	}
103
104	tdb	1.1	//---ACCESSOR/MUTATOR METHODS---
105
106			//---ATTRIBUTES---
107
108			/**
109			* This is the friendly identifier of the
110			* component this class is running in.
111			* eg, a Filter may be called "filter1",
112			* If this class does not have an owning
113			* component, a name from the configuration
114			* can be placed here. This name could also
115			* be changed to null for utility classes.
116			*/
117	ajm	1.11	private String _name = "CPU";
118	ajm	1.2
119			/**
120	ajm	1.11	* A reference to the configuration proxy in use
121	ajm	1.2	*/
122	ajm	1.11	private ConfigurationProxy _cp = ConfigurationProxy.getInstance();
123	ajm	1.9
124			private HashMap _hosts = new HashMap();
125
126			private String[] _attributes = { "packet.cpu.user", "packet.cpu.kernel", "packet.cpu.iowait", "packet.cpu.swap" };
127			private String[] _attributeNames = {"User CPU", "Kernel CPU", "I/O Wait CPU", "Swap CPU"};
128	tdb	1.1
129			//---STATIC ATTRIBUTES---
130
131			}