Package io.fabric8.kubernetes.client.utils

Class AsyncUtils

java.lang.Object

io.fabric8.kubernetes.client.utils.AsyncUtils

public class AsyncUtils
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	AsyncUtils.ShouldRetry<T>

Method Summary

Modifier and Type	Method	Description
static <T> CompletableFuture<T>	retryWithExponentialBackoff(Supplier<CompletableFuture<T>> action, Consumer<T> onCancel, Duration timeout, ExponentialBackoffIntervalCalculator retryIntervalCalculator, AsyncUtils.ShouldRetry<T> shouldRetry)	Returns a new CompletableFuture that will complete once the action provided by the action supplier completes.
static <T> CompletableFuture<T>	withTimeout(CompletableFuture<T> future, Duration timeout)	Returns the provided CompletableFuture that will complete exceptionally with a TimeoutException if the provided Duration timeout period is exceeded.

Methods inherited from class java.lang.Object

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

Method Detail

withTimeout

public static <T> CompletableFuture<T> withTimeout(CompletableFuture<T> future,
                                                   Duration timeout)

Returns the provided CompletableFuture that will complete exceptionally with a TimeoutException if the provided Duration timeout period is exceeded.

Type Parameters:

T - the result type returned by the future.

Parameters:

future - the future to add a timeout to.

timeout - the timeout duration.

Returns:

the provided future with a timeout.

retryWithExponentialBackoff

public static <T> CompletableFuture<T> retryWithExponentialBackoff(Supplier<CompletableFuture<T>> action,
                                                                   Consumer<T> onCancel,
                                                                   Duration timeout,
                                                                   ExponentialBackoffIntervalCalculator retryIntervalCalculator,
                                                                   AsyncUtils.ShouldRetry<T> shouldRetry)

Returns a new CompletableFuture that will complete once the action provided by the action supplier completes. The action will be retried with an exponential backoff using the ExponentialBackoffIntervalCalculator as long as the AsyncUtils.ShouldRetry predicate returns a non-negative value. Each action retrieval retry will time out after the provided timeout Duration.

Type Parameters:

T - the result type returned by the future.

Parameters:

action - the action supplier.

onCancel - consumes the intermediate result in case the returned future is cancelled or each time the action is retried.

timeout - the timeout duration.

retryIntervalCalculator - the retry interval calculator.

shouldRetry - the predicate to compute if the action is to be retried.

Returns:

a new CompletableFuture that will complete once the action provided by the action supplier completes.