software.amazon.awssdk.core.retry

Class ClockSkew

java.lang.Object

software.amazon.awssdk.core.retry.ClockSkew

@ThreadSafe
public final class ClockSkew
extends Object

Utility methods for checking and reacting to the current client-side clock being different from the service-side clock.

Method Summary

Modifier and Type	Method and Description
static Duration	getClockSkew(Instant clientTime, Instant serverTime) Calculate the time skew between a client and server date.
static Optional<Instant>	getServerTime(SdkHttpResponse serviceResponse) Get the server time from the service response, or empty if the time could not be determined.
static boolean	isClockSkewed(Instant clientTime, Instant serverTime) Determine whether the request-level client time was sufficiently skewed from the server time as to possibly cause a clock skew error.

Methods inherited from class java.lang.Object

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

Method Detail

isClockSkewed

public static boolean isClockSkewed(Instant clientTime,
                                    Instant serverTime)

Determine whether the request-level client time was sufficiently skewed from the server time as to possibly cause a clock skew error.

getClockSkew

public static Duration getClockSkew(Instant clientTime,
                                    Instant serverTime)

Calculate the time skew between a client and server date. This value has the same semantics of HttpClientDependencies.timeOffset(). Positive values imply the client clock is "fast" and negative values imply the client clock is "slow".

getServerTime

public static Optional<Instant> getServerTime(SdkHttpResponse serviceResponse)

Get the server time from the service response, or empty if the time could not be determined.