public class Retry extends Object
| Modifier and Type | Class and Description |
|---|---|
static interface |
Retry.AdvancedRunnable
Runnable, which provides some additional info (iteration for now)
|
static interface |
Retry.Supplier<T>
Needed here because:
- java.util.function.Supplier defined from Java 8
- Adds some additional info (current iteration)
|
| Constructor and Description |
|---|
Retry() |
| Modifier and Type | Method and Description |
|---|---|
static <T> T |
call(Retry.Supplier<T> supplier,
int attemptsCount,
long intervalMillis)
Runs the given
runnable at most attemptsCount times until it passes,
leaving intervalMillis milliseconds between the invocations. |
static int |
execute(Runnable runnable,
int attemptsCount,
long intervalMillis)
Runs the given
runnable at most attemptsCount times until it passes,
leaving intervalMillis milliseconds between the invocations. |
static int |
executeWithBackoff(Retry.AdvancedRunnable runnable,
int attemptsCount,
int intervalBaseMillis)
Runs the given
runnable at most attemptsCount times until it passes,
leaving some increasing random delay milliseconds between the invocations. |
public static int execute(Runnable runnable, int attemptsCount, long intervalMillis)
runnable at most attemptsCount times until it passes,
leaving intervalMillis milliseconds between the invocations.
The runnable is reexecuted if it throws a RuntimeException or AssertionError.runnable - attemptsCount - Total number of attempts to execute the runnableintervalMillis - public static int executeWithBackoff(Retry.AdvancedRunnable runnable, int attemptsCount, int intervalBaseMillis)
runnable at most attemptsCount times until it passes,
leaving some increasing random delay milliseconds between the invocations. It uses Exponential backoff + jitter algorithm
to compute the delay. More details https://aws.amazon.com/blogs/architecture/exponential-backoff-and-jitter/
The base for delay is specified by intervalBaseMillis number.
The runnable is reexecuted if it throws a RuntimeException or AssertionError.runnable - attemptsCount - Total number of attempts to execute the runnableintervalBaseMillis - base for the exponential backoff + jitterpublic static <T> T call(Retry.Supplier<T> supplier, int attemptsCount, long intervalMillis)
runnable at most attemptsCount times until it passes,
leaving intervalMillis milliseconds between the invocations.
The runnable is reexecuted if it throws a RuntimeException or AssertionError.supplier - attemptsCount - Total number of attempts to execute the runnableintervalMillis - supplier.Copyright © 2017 JBoss by Red Hat. All rights reserved.