com.peterphi.std.guice.common.retry.retry

Class RetryManager

java.lang.Object

com.peterphi.std.guice.common.retry.retry.RetryManager

public class RetryManager
extends Object

Constructor Summary

Constructors

Constructor and Description
RetryManager(BackoffStrategy strategy, int maxAttempts, com.codahale.metrics.Timer attempts, com.codahale.metrics.Meter attemptFailures)

Method Summary

Modifier and Type	Method and Description
protected <T> T	finalAttemptFailed(Retryable<T> operation, int attempt, Throwable e) Called when the final attempt at a retryable operation failed Allows extending classes to customise behaviour or throw custom exceptions
protected boolean	maxAttemptsReached(int attempt) Returns true if the given attempt number is greater than or equal to the maximum number of attempts this retry manager should run
<T> T	run(Retryable<T> operation)
<T> T	runUnchecked(Retryable<T> operation) Run the operation, only throwing an unchecked exception on failure

Methods inherited from class java.lang.Object

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

Constructor Detail

RetryManager

public RetryManager(BackoffStrategy strategy,
                    int maxAttempts,
                    com.codahale.metrics.Timer attempts,
                    com.codahale.metrics.Meter attemptFailures)

Method Detail

run

public <T> T run(Retryable<T> operation)
          throws Exception

Throws:

Exception

maxAttemptsReached

protected boolean maxAttemptsReached(int attempt)

Returns true if the given attempt number is greater than or equal to the maximum number of attempts this retry manager should run

Parameters:

attempt -

Returns:

finalAttemptFailed

protected <T> T finalAttemptFailed(Retryable<T> operation,
                                   int attempt,
                                   Throwable e)
                            throws Exception

Called when the final attempt at a retryable operation failed

Allows extending classes to customise behaviour or throw custom exceptions

Parameters:

operation - - the operation being attempted

attempt - - the attempt number that failed

e - - the exception thrown when the operation failed

Throws:

Exception

runUnchecked

public <T> T runUnchecked(Retryable<T> operation)
                   throws RuntimeException

Run the operation, only throwing an unchecked exception on failure

Type Parameters:

T -

Parameters:

operation -

Returns:

Throws:

RuntimeException