| 23 |
|
*/ |
| 24 |
|
public final String REVISION = "$Revision$"; |
| 25 |
|
|
| 26 |
+ |
/** |
| 27 |
+ |
* A description of this monitor |
| 28 |
+ |
*/ |
| 29 |
|
public final String DESC = "Monitors Load."; |
| 30 |
|
|
| 31 |
|
//---STATIC METHODS--- |
| 33 |
|
//---CONSTRUCTORS--- |
| 34 |
|
|
| 35 |
|
//---PUBLIC METHODS--- |
| 36 |
< |
|
| 36 |
> |
|
| 37 |
> |
/** |
| 38 |
> |
* Analyse a packet of data, and generate an alert if |
| 39 |
> |
* necessary. |
| 40 |
> |
* |
| 41 |
> |
* @param packet the XMLPacket to analyse |
| 42 |
> |
*/ |
| 43 |
|
public void analysePacket(XMLPacket packet) { |
| 44 |
|
|
| 45 |
|
String source = packet.getParam("packet.attributes.machine_name"); |
| 56 |
|
String attribute = _attributes[attributeNum]; |
| 57 |
|
String attributeName = _attributeNames[attributeNum]; |
| 58 |
|
String currentValue = packet.getParam(attribute); |
| 59 |
+ |
// find out our new threshold |
| 60 |
|
int newThreshold = checkAttributeThreshold(currentValue, reg); |
| 61 |
+ |
// process this data to generate an alert |
| 62 |
|
processAlert(newThreshold, attributeName, reg, source, currentValue); |
| 63 |
|
} |
| 64 |
|
|
| 88 |
|
} |
| 89 |
|
|
| 90 |
|
//---PRIVATE METHODS--- |
| 91 |
< |
|
| 91 |
> |
|
| 92 |
> |
/** |
| 93 |
> |
* Checks a piece of current data, and returns the |
| 94 |
> |
* threshold it breaches, if any. |
| 95 |
> |
* |
| 96 |
> |
* @param attributeString a String representing the current data value |
| 97 |
> |
* @param reg the Register for the host |
| 98 |
> |
* @return the threshold level breached, if any |
| 99 |
> |
*/ |
| 100 |
|
private int checkAttributeThreshold(String attributeString, Register reg) { |
| 101 |
|
for(int thresholdLevel = Alert.thresholdLevels.length - 1; thresholdLevel >= 0; thresholdLevel--) { |
| 102 |
|
if (reg.getThreshold(thresholdLevel) != -1.0) { |
| 113 |
|
} |
| 114 |
|
return Alert.thresholdNORMAL; |
| 115 |
|
} |
| 116 |
< |
|
| 116 |
> |
|
| 117 |
> |
/** |
| 118 |
> |
* Initialises a HashMap of Registers with the current list |
| 119 |
> |
* of attributes. This is only used if we are looking at more |
| 120 |
> |
* than one distinct attribute. |
| 121 |
> |
* |
| 122 |
> |
* @param source the host we are looking at |
| 123 |
> |
* @param attributeRegisters a HashMap to put the new Registers in |
| 124 |
> |
*/ |
| 125 |
|
private void initAttributeRegsiters(String source, HashMap attributeRegisters) { |
| 126 |
|
for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) { |
| 127 |
|
String attributeName = _attributes[attributeNum].substring(_attributes[attributeNum].lastIndexOf(".") + 1); |
| 130 |
|
} |
| 131 |
|
|
| 132 |
|
//---ACCESSOR/MUTATOR METHODS--- |
| 133 |
< |
|
| 133 |
> |
|
| 134 |
> |
/** |
| 135 |
> |
* Returns a reference to a specific Queue for this |
| 136 |
> |
* monitor. This Queue returns only the data packets |
| 137 |
> |
* (based on type) that we want too look at. |
| 138 |
> |
* |
| 139 |
> |
* @return a reference to a Queue |
| 140 |
> |
*/ |
| 141 |
|
protected Queue getQueue() { |
| 142 |
|
return MonitorManager.getInstance().getDataQueue(); |
| 143 |
|
} |
| 157 |
|
private String _name = "Load"; |
| 158 |
|
|
| 159 |
|
/** |
| 160 |
< |
* A reference to the configuration proxy in use |
| 160 |
> |
* A HashMap of Registers (or groups of Registers), one |
| 161 |
> |
* for each host we're monitoring. |
| 162 |
|
*/ |
| 128 |
– |
private ConfigurationProxy _cp = ConfigurationProxy.getInstance(); |
| 129 |
– |
|
| 163 |
|
private HashMap _hosts = new HashMap(); |
| 164 |
< |
|
| 164 |
> |
|
| 165 |
> |
/** |
| 166 |
> |
* An array of attributes which we will be checking. |
| 167 |
> |
*/ |
| 168 |
|
private String[] _attributes = { "packet.load.load1", "packet.load.load5", "packet.load.load15" }; |
| 169 |
+ |
|
| 170 |
+ |
/** |
| 171 |
+ |
* An array of "nice names" for the attributes in _attributes. |
| 172 |
+ |
*/ |
| 173 |
|
private String[] _attributeNames = {"1 min load avg.", "5 min load avg.", "15 min load avg."}; |
| 174 |
|
|
| 175 |
|
//---STATIC ATTRIBUTES--- |
