Package org.eso.ias.plugin

Class DetailedStatsCollector

java.lang.Object

org.eso.ias.plugin.DetailedStatsCollector

public class DetailedStatsCollector
extends Object

Collects detailed statistics about updated of monitor point values.

This objects is notified about every monitor point update received by the plugin from the monitored system..
When requested, the plugin submits a log with the statistics collected so far and get ready for the next time interval where a time interval is whatever time is between two consecutive calls of getAndReset().

If there has been no update in the last time interval, no message is logged.

Author:

acaproni

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	DetailedStatsCollector.StatData	The data to collect for each monitor point

Field Summary

Fields

Modifier and Type	Field	Description
static final org.slf4j.Logger	logger	The logger
static final int	MONITOR_POINTS_TO_LOG	The number of monitor points to log

Constructor Summary

Constructors

Constructor	Description
DetailedStatsCollector()

Method Summary

Modifier and Type	Method	Description
List<DetailedStatsCollector.StatData>	getAndReset()	Get the 10 most frequently updated monitor points
String	logAndReset()	Logs the message and get ready for the next iteration period.
void	mPointUpdated(String id)	A monitor point with the given ID has been update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MONITOR_POINTS_TO_LOG

public static final int MONITOR_POINTS_TO_LOG

The number of monitor points to log

See Also:

• Constant Field Values

logger

public static final org.slf4j.Logger logger

The logger

Constructor Details

DetailedStatsCollector

public DetailedStatsCollector()

Method Details

mPointUpdated

public void mPointUpdated(String id)

A monitor point with the given ID has been update

Parameters:

id - The not null nor empty ID of the updated monitor point

getAndReset

public List<DetailedStatsCollector.StatData> getAndReset()

Get the 10 most frequently updated monitor points

Returns:

The most frequently update monitor points (sorted ascending); empty if no monitor point has been updated in the time interval

logAndReset

public String logAndReset()

Logs the message and get ready for the next iteration period.

Returns:

The logged message or null if the list of occurrences is empty.