org.apache.manifoldcf.crawler.interfaces

Class PerformanceStatistics.AveragingQueue

java.lang.Object

org.apache.manifoldcf.crawler.interfaces.PerformanceStatistics.AveragingQueue

Enclosing class:

PerformanceStatistics

protected static class PerformanceStatistics.AveragingQueue
extends java.lang.Object

This class keeps track of some depth of fetch history for an individual connection, and is used to calculate a weighted average fetches-per-minute rate.

Field Summary

Fields

Modifier and Type	Field and Description
protected PerformanceStatistics.AveragingRecord[]	records The internal structure of the averaging queue is a circular buffer, which gets initialized to the default value
protected int	startIndex This is the current start pointer

Constructor Summary

Constructors

Constructor and Description
AveragingQueue() Constructor

Method Summary

Modifier and Type	Method and Description
void	addRecord(int setSize, long elapsedTime) Add a record
double	calculateFetchRate() Calculate running-average fetch rate

Methods inherited from class java.lang.Object

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

Field Detail

records

protected PerformanceStatistics.AveragingRecord[] records

The internal structure of the averaging queue is a circular buffer, which gets initialized to the default value

startIndex

protected int startIndex

This is the current start pointer

Constructor Detail

AveragingQueue

public AveragingQueue()

Constructor

Method Detail

addRecord

public void addRecord(int setSize,
                      long elapsedTime)

Add a record

calculateFetchRate

public double calculateFetchRate()

Calculate running-average fetch rate