| 1 |
//---PACKAGE DECLARATION--- |
| 2 |
package uk.ac.ukc.iscream.client.monitors; |
| 3 |
|
| 4 |
//---IMPORTS--- |
| 5 |
import java.util.HashMap; |
| 6 |
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 |
* @author $Author: ajm4 $ |
| 15 |
* @version $Id: CPU__Monitor.java,v 1.15 2001/03/06 02:33:55 ajm4 Exp $ |
| 16 |
*/ |
| 17 |
public class CPU__Monitor extends MonitorSkeleton { |
| 18 |
|
| 19 |
//---FINAL ATTRIBUTES--- |
| 20 |
|
| 21 |
/** |
| 22 |
* The current CVS revision of this class |
| 23 |
*/ |
| 24 |
public final String REVISION = "$Revision: 1.15 $"; |
| 25 |
|
| 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 |
if (packet.getParam("packet.attributes.type").equals("data")) { |
| 36 |
String source = packet.getParam("packet.attributes.machine_name"); |
| 37 |
if (!_hosts.containsKey(source)) { |
| 38 |
_hosts.put(source, new Register(source, _name, _attributes.length)); |
| 39 |
} |
| 40 |
|
| 41 |
Register reg = (Register) _hosts.get(source); |
| 42 |
for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) { |
| 43 |
// find out the threshold level we're at |
| 44 |
String attributeName = _attributes[attributeNum]; |
| 45 |
String currentValue = packet.getParam(attributeName); |
| 46 |
int newThreshold = checkAttributeThreshold(currentValue, reg); |
| 47 |
processAlert(newThreshold, attributeNum, attributeName, reg, source, currentValue); |
| 48 |
} |
| 49 |
} |
| 50 |
} |
| 51 |
|
| 52 |
/** |
| 53 |
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
| 54 |
* method to provide clean logging (every class should have this). |
| 55 |
* |
| 56 |
* This uses the uk.ac.ukc.iscream.util.NameFormat class |
| 57 |
* to format the toString() |
| 58 |
* |
| 59 |
* @return the name of this class and its CVS revision |
| 60 |
*/ |
| 61 |
public String toString() { |
| 62 |
return FormatName.getName( |
| 63 |
_name, |
| 64 |
getClass().getName(), |
| 65 |
REVISION); |
| 66 |
} |
| 67 |
|
| 68 |
/** |
| 69 |
* return the String representation of what the monitor does |
| 70 |
*/ |
| 71 |
public String getDescription(){ |
| 72 |
return DESC; |
| 73 |
} |
| 74 |
|
| 75 |
//---PRIVATE METHODS--- |
| 76 |
|
| 77 |
private int checkAttributeThreshold(String attributeString, Register reg) { |
| 78 |
for(int thresholdLevel = Alert.thresholdLevels.length - 1; thresholdLevel >= 0; thresholdLevel--) { |
| 79 |
if (reg.getThreshold(thresholdLevel) != -1.0) { |
| 80 |
if(attributeString != null) { |
| 81 |
try { |
| 82 |
double attribute = Double.parseDouble(attributeString); |
| 83 |
if (reg.getThreshold(thresholdLevel) < attribute) return thresholdLevel; |
| 84 |
} catch (NumberFormatException e) { |
| 85 |
// we got some duff data in the packet, but we shouldn't have |
| 86 |
_logger.write(toString(), Logger.DEBUG, "possible errenous packet data, should be double value - " + attributeString); |
| 87 |
} |
| 88 |
} |
| 89 |
} |
| 90 |
} |
| 91 |
return Alert.thresholdNORMAL; |
| 92 |
} |
| 93 |
|
| 94 |
//---ACCESSOR/MUTATOR METHODS--- |
| 95 |
|
| 96 |
//---ATTRIBUTES--- |
| 97 |
|
| 98 |
/** |
| 99 |
* This is the friendly identifier of the |
| 100 |
* component this class is running in. |
| 101 |
* eg, a Filter may be called "filter1", |
| 102 |
* If this class does not have an owning |
| 103 |
* component, a name from the configuration |
| 104 |
* can be placed here. This name could also |
| 105 |
* be changed to null for utility classes. |
| 106 |
*/ |
| 107 |
private String _name = "CPU"; |
| 108 |
|
| 109 |
/** |
| 110 |
* A reference to the configuration proxy in use |
| 111 |
*/ |
| 112 |
private ConfigurationProxy _cp = ConfigurationProxy.getInstance(); |
| 113 |
|
| 114 |
private HashMap _hosts = new HashMap(); |
| 115 |
|
| 116 |
private String[] _attributes = { "packet.cpu.user", "packet.cpu.kernel", "packet.cpu.iowait", "packet.cpu.swap" }; |
| 117 |
private String[] _attributeNames = {"User CPU", "Kernel CPU", "I/O Wait CPU", "Swap CPU"}; |
| 118 |
|
| 119 |
//---STATIC ATTRIBUTES--- |
| 120 |
|
| 121 |
} |
