com.ibm.cloud.objectstorage.retry

Class ClockSkewAdjuster

java.lang.Object

com.ibm.cloud.objectstorage.retry.ClockSkewAdjuster

@ThreadSafe
public final class ClockSkewAdjuster
extends Object

Applies heuristics to suggest a clock skew adjustment that should be applied to future requests based on a given service error. This handles cases that are definitely clock skew errors (where RetryUtils.isClockSkewError(com.ibm.cloud.objectstorage.SdkBaseException) is true) as well as cases that may or may not be clock skew errors.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ClockSkewAdjuster.AdjustmentRequest
static class	ClockSkewAdjuster.ClockSkewAdjustment

Constructor Summary

Constructors

Constructor and Description
ClockSkewAdjuster()

Method Summary

Modifier and Type	Method and Description
ClockSkewAdjuster.ClockSkewAdjustment	getAdjustment(ClockSkewAdjuster.AdjustmentRequest adjustmentRequest) Recommend a ClockSkewAdjuster.ClockSkewAdjustment, based on the provided ClockSkewAdjuster.AdjustmentRequest.
Integer	getEstimatedSkew() The estimated skew is the difference between the local time at which the client received the response and the Date header from the service's response.
void	updateEstimatedSkew(ClockSkewAdjuster.AdjustmentRequest adjustmentRequest)

Methods inherited from class java.lang.Object

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

Constructor Detail

ClockSkewAdjuster

public ClockSkewAdjuster()

Method Detail

getEstimatedSkew

public Integer getEstimatedSkew()

The estimated skew is the difference between the local time at which the client received the response and the Date header from the service's response. This time represents both the time difference between the client and server due to clock differences as well as the network latency for sending a response from the service to the client.

updateEstimatedSkew

public void updateEstimatedSkew(ClockSkewAdjuster.AdjustmentRequest adjustmentRequest)

getAdjustment

public ClockSkewAdjuster.ClockSkewAdjustment getAdjustment(ClockSkewAdjuster.AdjustmentRequest adjustmentRequest)

Recommend a ClockSkewAdjuster.ClockSkewAdjustment, based on the provided ClockSkewAdjuster.AdjustmentRequest.