com.adobe.acs.commons.throttling

Class ThrottlingState

java.lang.Object

com.adobe.acs.commons.throttling.ThrottlingState

public class ThrottlingState
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected AtomicInteger	currentIndex
protected LoadEstimator	loadEstimator
protected Instant[]	timestamps This array holds the timestamps when requests have reached the system; in case the timestamp has already expired, Instant.EPOCH is stored.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ThrottlingState(Clock clock, LoadEstimator le)

Method Summary

Modifier and Type	Method and Description
protected ThrottlingDecision	evaluateThrottling()
protected int	resize(int newSize) resize the queue

Methods inherited from class java.lang.Object

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

Field Detail

timestamps

protected Instant[] timestamps

This array holds the timestamps when requests have reached the system; in case the timestamp has already expired, Instant.EPOCH is stored. Access to this array should be guarded by the lock.

loadEstimator

protected LoadEstimator loadEstimator

currentIndex

protected AtomicInteger currentIndex

Constructor Detail

ThrottlingState

protected ThrottlingState(Clock clock,
                          LoadEstimator le)

Method Detail

evaluateThrottling

protected ThrottlingDecision evaluateThrottling()

Returns:

resize

protected int resize(int newSize)

resize the queue

Parameters:

newSize - new size of queue

Returns:

the number of free entries in the array