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root/i-scream/projects/cms/source/server/uk/org/iscream/cms/server/client/Register.java

Comparing projects/cms/source/server/uk/org/iscream/cms/server/client/Register.java (file contents):
Revision 1.7 by tdb, Tue Mar 6 19:24:25 2001 UTC vs.
Revision 1.15 by ajm, Thu Mar 22 00:31:24 2001 UTC

#	Line 1 | Line 1
1		//---PACKAGE DECLARATION---
2	<	package uk.ac.ukc.iscream.client;
2	>	package uk.org.iscream.client;
3
4		//---IMPORTS---
5	<	import uk.ac.ukc.iscream.util.*;
6	<	import uk.ac.ukc.iscream.componentmanager.*;
5	>	import uk.org.iscream.util.*;
6	>	import uk.org.iscream.componentmanager.*;
7
8		/**
9		* The Register class holds theshold values,
10		* the last level of alert for each attribute for a monitor
11	<	* and the time of last alert sent for each alert level for
12	<	* each attribute in this register.
11	>	* and the time of last alert sent for each alert level.
12		*
13		* This class is used by monitor classes so they can determine
14		* how often they should send alerts when breaching alert levels.
#	Line 34 | Line 33 | public class Register {
33
34		/**
35		* Construct a Register with the hostname and monitorName
36	<	* (for obtaining the threshold values), and the number of
37	<	* attributes we are keeping track of.
36	>	* (for obtaining the threshold values).
37	>	* This constructs a generic register for a specific monitor.
38		*
39		* @param hostname the hostname this register is for
40		* @param monitorName the monitor this register is for
42	–	* @param numAttributes the number of attributes to track
41		*/
42	<	public Register(String hostname, String monitorName, int numAttributes) {
42	>	public Register(String hostname, String monitorName) {
43	>	this(hostname, monitorName, null);
44	>	}
45	>
46	>	/**
47	>	* Construct a Register with the hostname and monitorName
48	>	* (for obtaining the threshold values).
49	>	* This constructs a register for a specific attribute check
50	>	* by a monitor.
51	>	*
52	>	* @param hostname the hostname this register is for
53	>	* @param monitorName the monitor this register is for
54	>	* @param attributeName the specific attribute this register is for
55	>	*/
56	>	public Register(String hostname, String monitorName, String attributeName) {
57		_hostname = hostname;
58		_monitorName = monitorName;
59	<	_lastAlertLevels = new int[numAttributes];
60	<	_lastThresholdLevels = new int[numAttributes];
61	<	_initialAlertTime = new long[numAttributes];
62	<	_lastAlertTimeout = new long[numAttributes];
63	<	_times = new long[numAttributes][Alert.alertLevels.length];
59	>	_attributeName = attributeName;
60	>	_lastAlertLevel = 0;
61	>	_lastThresholdLevel = 0;
62	>	_initialAlertTime= 0;
63	>	_lastAlertTimeout = 0;
64	>	_times = new long[Alert.alertLevels.length];
65		// initialise the arrays to 0
66	<	for (int x = 0; x < _lastAlertLevels.length; x++) {
67	<	_lastAlertLevels[x] = 0;
55	<	_initialAlertTime[x] = 0;
56	<	_lastThresholdLevels[x] = 0;
57	<	_lastAlertTimeout[x] = 0;
58	<	for(int y = 0; y < Alert.alertLevels.length; y++) {
59	<	_times[x][y] = 0;
60	<	}
66	>	for(int x = 0; x < Alert.alertLevels.length; x++) {
67	>	_times[x] = 0;
68		}
69		}
70	+
71
72		//---PUBLIC METHODS---
73
74		//---PRIVATE METHODS---
75
76	+	/**
77	+	* Obtains a threshold value from the configuration for a given level.
78	+	* The attribute name specifies which property to get.
79	+	* eg, attributeName = idle it will look for
80	+	*     Monitor.<monitor name>.idle.threshold.<alert level>
81	+	* eg, attributeName = null
82	+	*     Monitor.<monitor name>.threshold.<alert level>
83	+	*
84	+	* Note that if its null, this will get the threshold for the monitor
85	+	* as a whole, not the specific attribute.
86	+	*
87	+	* @param level the alert level to get the attribute for
88	+	* @param attributeName the attribute to get the threshold for
89	+	*
90	+	* @return the threshold obtained
91	+	*/
92	+	private String getThresholdConfig(int level, String attributeName) throws PropertyNotFoundException {
93	+	String temp = "";
94	+	if (attributeName != null) {
95	+	temp = "." + attributeName;
96	+	}
97	+	return _cp.getProperty("Host." + _hostname, "Monitor." + _monitorName + temp + ".threshold." + Alert.thresholdLevels[level]);
98	+	}
99	+
100		//---ACCESSOR/MUTATOR METHODS---
101
102		/**
103	<	* Gets the last alert level for the
72	<	* given attribute.
103	>	* Gets the last alert level
104		*
74	–	* @param attributeNum the attribute to get
75	–	*
105		* @return the last alert level
106		*/
107	<	public int getLastAlertLevel(int attributeNum) {
108	<	return _lastAlertLevels[attributeNum];
107	>	public int getLastAlertLevel() {
108	>	return _lastAlertLevel;
109		}
110
111		/**
112	<	* Sets the last threshold level for the
84	<	* given attribute.
112	>	* Sets the last threshold level
113		*
86	–	* @param attributeNum the attribute to set
114		* @param level the new last threshold level
115		*/
116	<	public void setLastThresholdLevel(int attributeNum, int level) {
117	<	_lastThresholdLevels[attributeNum] = level;
116	>	public void setLastThresholdLevel(int level) {
117	>	_lastThresholdLevel = level;
118		}
119
120	<	/**
121	<	* Gets the last threshold level for the
95	<	* given attribute.
120	>	/**
121	>	* Gets the last threshold level
122		*
97	–	* @param attributeNum the attribute to get
98	–	*
123		* @return the last threshold level
124		*/
125	<	public int getLastThresholdLevel(int attributeNum) {
126	<	return _lastThresholdLevels[attributeNum];
125	>	public int getLastThresholdLevel() {
126	>	return _lastThresholdLevel;
127		}
128
129		/**
130	<	* Sets the last alert level for the
107	<	* given attribute.
130	>	* Sets the last alert level
131		*
132		* Note that if this is setting to an OK
133		* level alert, it resets _maxLevelCount.
#	Line 113 | Line 136 | public class Register {
136		* if the next alert after OK is set.
137		* And resets it to 0 if it IS an OK.
138		*
116	–	* @param attributeNum the attribute to set
139		* @param level the new last alert level
140		*/
141	<	public void setLastAlertLevel(int attributeNum, int level) {
142	<	_lastAlertLevels[attributeNum] = level;
141	>	public void setLastAlertLevel(int level) {
142	>	_lastAlertLevel = level;
143		if (level == Alert.alertOK) {
144		_maxLevelCount = 0;
145	<	_initialAlertTime[attributeNum] = 0;
145	>	// we won't do this, so OK's still have the initialAlertTime
146	>	// of the original alert they're OK'ing
147	>	//_initialAlertTime = 0;
148		}
149		if (level == Alert.alertOK + 1) {
150	<	_initialAlertTime[attributeNum] = System.currentTimeMillis();
150	>	_initialAlertTime = System.currentTimeMillis();
151		}
152		}
153
154		/**
155	<	* Gets the time an alert was sent for the
132	<	* given attribute at the given level.
155	>	* Gets the time an alert was sent at the given level.
156		*
134	–	* @param attributeNum the attribute to get
157		* @param level the alert level to get
158		*
159		* @return the time last sent
160		*/
161	<	public long getTimeLastSent(int attributeNum) {
162	<	return _times[attributeNum][getLastAlertLevel(attributeNum)];
161	>	public long getTimeLastSent() {
162	>	return _times[getLastAlertLevel()];
163		}
164
165		/**
166	<	* Gets the time an alert was sent for the
145	<	* given attribute at the given level.
166	>	* Gets the time an alert was sent at the given level.
167		*
147	–	* @param attributeNum the attribute to get
168		* @param level the alert level to get
169		* @param value the new time
170		*/
171	<	public void setTimeLastSent(int attributeNum, long value) {
172	<	_times[attributeNum][getLastAlertLevel(attributeNum)] = value;
171	>	public void setTimeLastSent(long value) {
172	>	_times[getLastAlertLevel()] = value;
173		}
174
175		/**
#	Line 165 | Line 185 | public class Register {
185		// -1.0 means we don't use an alert level
186		double threshold = -1.0;
187		try {
188	<	String thresholdString = _cp.getProperty("Host." + _hostname, "Monitor." + _monitorName + ".threshold." + Alert.thresholdLevels[level]);
188	>	String thresholdString = "";
189	>	try {
190	>	thresholdString = getThresholdConfig(level, _attributeName);
191	>	} catch (PropertyNotFoundException e) {
192	>	thresholdString = getThresholdConfig(level, null);
193	>	}
194		threshold = Double.parseDouble(thresholdString);
195		} catch (PropertyNotFoundException e) {
196		threshold = -1.0;
#	Line 192 | Line 217 | public class Register {
217		* @param level the alert level
218		* @param thresholdLevel the threshold leve we are on
219		*/
220	<	public long getAlertTimeout(int level, int attributeNum) {
220	>	public long getAlertTimeout(int level) {
221		// 0 means we don't use this value
222		long timeout = 0;
223		try {
224		String timeoutString = _cp.getProperty("Host." + _hostname, "Monitor." + _monitorName + ".alertTimeout." + Alert.alertLevels[level]);
225	<	int threshold = getLastThresholdLevel(attributeNum);
225	>	int threshold = getLastThresholdLevel();
226		if (threshold > 0) {
227		timeout = (Long.parseLong(timeoutString) / threshold) * 1000;
228		}
#	Line 218 | Line 243 | public class Register {
243		* in the list, this is assumed to be FINAL, and special
244		* logic is in place to handle that.
245		*
221	–	* @param attributeNum the attribute to get next alert for
246		*/
247	<	public int getNextAlertLevel(int attributeNum) {
248	<	if((getLastAlertLevel(attributeNum) + 1) > (Alert.alertLevels.length - 2)) {
249	<	return getLastAlertLevel(attributeNum);
247	>	public int getNextAlertLevel() {
248	>	if((getLastAlertLevel() + 1) > (Alert.alertLevels.length - 2)) {
249	>	return getLastAlertLevel();
250		}
251	<	return getLastAlertLevel(attributeNum) + 1;
251	>	return getLastAlertLevel() + 1;
252		}
253
254		/**
255		* Gets the timeout value of the last alert
256		* sent
257		*
234	–	* @param attrubuteNum the attribute to get the last timeout for
258		* @return the last timeout value
259		*/
260	<	public long getLastAlertTimeout(int attributeNum) {
261	<	return _lastAlertTimeout[attributeNum];
260	>	public long getLastAlertTimeout() {
261	>	return _lastAlertTimeout;
262		}
263
264		/**
265		* Sets the timeout value of the last alert
266		* sent
267		*
245	–	* @param attrubuteNum the attribute to get the last timeout for
268		* @param timeout the new value
269		*/
270	<	public void setLastAlertTimeout(int attributeNum, long timeout) {
271	<	_lastAlertTimeout[attributeNum] = timeout;
270	>	public void setLastAlertTimeout(long timeout) {
271	>	_lastAlertTimeout = timeout;
272		}
273
274		/**
275		* Returns the time that the first alert was sent
276		* for an attribute that has passed a threshold value
277		*
256	–	* @param attrubuteNum the attribute to get the first alert time for
278		*/
279	<	public long getInitialAlertTime(int attributeNum) {
280	<	return _initialAlertTime[attributeNum];
279	>	public long getInitialAlertTime() {
280	>	return _initialAlertTime;
281		}
282
283		/**
#	Line 278 | Line 299 | public class Register {
299		* is mis-read or is not configured.  It will NEVER reach
300		* a FINAL.
301		*
281	–	* @param attributeNum the attribute to advance the alert for
302		*/
303	<	public void escalateAlert(int attributeNum) {
303	>	public void escalateAlert() {
304		// don't escalate if we're already on the last alert
305	<	if(getLastAlertLevel(attributeNum) != Alert.alertLevels.length -1) {
306	<	setLastAlertLevel(attributeNum, getNextAlertLevel(attributeNum));
305	>	if(getLastAlertLevel() != Alert.alertLevels.length -1) {
306	>	setLastAlertLevel(getNextAlertLevel());
307		}
308		try {
309		// note if we fail to get this value, we won't process the res of this
310		int reachFINALcount = Integer.parseInt(_cp.getProperty("Host." + _hostname, "Monitor." + _monitorName + ".reachFINALcount"));
311	<	if ((getLastAlertLevel(attributeNum) == Alert.alertLevels.length - 2) && (_maxLevelCount < reachFINALcount) ) {
311	>	if (getLastAlertLevel() == Alert.alertLevels.length - 2) {
312		_maxLevelCount++;
313	<	} else {
314	<	setLastAlertLevel(attributeNum, Alert.alertFINAL);
313	>	if(_maxLevelCount > reachFINALcount) {
314	>	setLastAlertLevel(Alert.alertFINAL);
315	>	}
316		}
317		} catch (PropertyNotFoundException e) {
318		// we NEVER reach FINAL in this case
#	Line 311 | Line 332 | public class Register {
332		* The monitor this register is for
333		*/
334		private String _monitorName;
335	+
336	+	/**
337	+	* The attribute name, as obtained from
338	+	* the configuration.
339	+	* eg, idle or /var
340	+	*/
341	+	private String _attributeName;
342
343		/**
344		* An array of last alert levels for
345		* each attribute this register is looking
346		* after.
347		*/
348	<	private int[] _lastAlertLevels;
348	>	private int _lastAlertLevel;
349
350		/**
351		* An array of last threshold levels for
352		* each attribute this register is looking
353		* after.
354		*/
355	<	private int[] _lastThresholdLevels;
355	>	private int _lastThresholdLevel;
356
357		/**
358		* An array of last alert timeout levels for
359		* each attribute this register is looking
360		* after.
361		*/
362	<	private long[] _lastAlertTimeout;
362	>	private long _lastAlertTimeout;
363
364		/**
365		* An array of arrays containing
366		* time an alert of each level
367		* was last sent for each attribute.
368		*/
369	<	private long[][] _times;
369	>	private long[] _times;
370
371		/**
372		* Initial times that an alert was first
373		* raised.
374		*/
375	<	private long[] _initialAlertTime;
375	>	private long _initialAlertTime;
376
377		/**
378		* A reference to the configuration proxy in use

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