1 |
|
//---PACKAGE DECLARATION--- |
2 |
< |
package uk.org.iscream.client.monitors; |
2 |
> |
package uk.org.iscream.cms.server.client.monitors; |
3 |
|
|
4 |
|
//---IMPORTS--- |
5 |
|
import java.util.HashMap; |
6 |
< |
import uk.org.iscream.client.*; |
7 |
< |
import uk.org.iscream.core.*; |
8 |
< |
import uk.org.iscream.util.*; |
9 |
< |
import uk.org.iscream.componentmanager.*; |
6 |
> |
import uk.org.iscream.cms.server.client.*; |
7 |
> |
import uk.org.iscream.cms.server.core.*; |
8 |
> |
import uk.org.iscream.cms.server.util.*; |
9 |
> |
import uk.org.iscream.cms.server.componentmanager.*; |
10 |
|
|
11 |
|
/** |
12 |
|
* This Monitor watches the Load for all machines |
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) { |
35 |
– |
if (packet.getParam("packet.attributes.type").equals("data")) { |
36 |
– |
String source = packet.getParam("packet.attributes.machine_name"); |
37 |
– |
if (!_hosts.containsKey(source)) { |
38 |
– |
HashMap attributeRegisters = new HashMap(); |
39 |
– |
initAttributeRegsiters(source, attributeRegisters); |
40 |
– |
_hosts.put(source, attributeRegisters); |
41 |
– |
} |
44 |
|
|
45 |
< |
HashMap attributeRegisters = (HashMap) _hosts.get(source); |
46 |
< |
for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) { |
47 |
< |
Register reg = (Register) attributeRegisters.get(_attributes[attributeNum]); |
48 |
< |
// find out the threshold level we're at |
49 |
< |
String attribute = _attributes[attributeNum]; |
48 |
< |
String attributeName = _attributeNames[attributeNum]; |
49 |
< |
String currentValue = packet.getParam(attribute); |
50 |
< |
int newThreshold = checkAttributeThreshold(currentValue, reg); |
51 |
< |
processAlert(newThreshold, attributeName, reg, source, currentValue); |
52 |
< |
} |
45 |
> |
String source = packet.getParam("packet.attributes.machine_name"); |
46 |
> |
if (!_hosts.containsKey(source)) { |
47 |
> |
HashMap attributeRegisters = new HashMap(); |
48 |
> |
initAttributeRegsiters(source, attributeRegisters); |
49 |
> |
_hosts.put(source, attributeRegisters); |
50 |
|
} |
51 |
+ |
|
52 |
+ |
HashMap attributeRegisters = (HashMap) _hosts.get(source); |
53 |
+ |
for(int attributeNum = 0; attributeNum < _attributes.length; attributeNum++) { |
54 |
+ |
Register reg = (Register) attributeRegisters.get(_attributes[attributeNum]); |
55 |
+ |
// find out the threshold level we're at |
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 |
+ |
|
65 |
|
} |
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.org.iscream.util.NameFormat class |
71 |
> |
* This uses the uk.org.iscream.cms.server.util.NameFormat class |
72 |
|
* to format the toString() |
73 |
|
* |
74 |
|
* @return the name of this class and its CVS revision |
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 |
+ |
|
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 |
+ |
} |
144 |
|
|
145 |
+ |
|
146 |
|
//---ATTRIBUTES--- |
147 |
|
|
148 |
|
/** |
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 |
|
*/ |
123 |
– |
private ConfigurationProxy _cp = ConfigurationProxy.getInstance(); |
124 |
– |
|
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--- |