ru.dlabs71.library.email.util

Class RetryableUtils

java.lang.Object

ru.dlabs71.library.email.util.RetryableUtils

public class RetryableUtils
extends Object

The Utility class with helper methods for create retryable mechanizes.

Project name: d-email

Creation date: 2023-11-10

Since:

1.0.0

Author:

Ivanov Danila

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RetryableUtils.RetryableSupplier<R> Functional interface for using in the retry(int, long, RetryableSupplier).
static interface	RetryableUtils.RetryableWorker Functional interface for using retry(int, long, RetryableWorker).

Constructor Summary

Constructors

Constructor and Description
RetryableUtils()

Method Summary

Modifier and Type	Method and Description
<R> R	retry(int count, long delayInMs, RetryableUtils.RetryableSupplier<R> supplier) Retry mechanism for handler in the 'supplier' argument.
void	retry(int count, long delayInMs, RetryableUtils.RetryableWorker worker) Retry mechanism for handler in the 'worker' argument.

Methods inherited from class java.lang.Object

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

Constructor Detail

RetryableUtils

public RetryableUtils()

Method Detail

retry

public <R> R retry(int count,
                   long delayInMs,
                   RetryableUtils.RetryableSupplier<R> supplier)
            throws jakarta.mail.MessagingException

Retry mechanism for handler in the 'supplier' argument.

Type Parameters:

R -

Parameters:

count - max number of the attempts

delayInMs - delay in milliseconds between attempts

supplier - handler function implements the RetryableUtils.RetryableSupplier interface

Returns:

result of the 'supplier' if it successfully executes

Throws:

jakarta.mail.MessagingException - error while 'supplier' is executing

retry

public void retry(int count,
                  long delayInMs,
                  RetryableUtils.RetryableWorker worker)
           throws jakarta.mail.MessagingException

Retry mechanism for handler in the 'worker' argument.

Parameters:

count - max number of the attempts

delayInMs - delay in milliseconds between attempts

worker - handler function implements the RetryableUtils.RetryableWorker interface

Throws:

jakarta.mail.MessagingException - error while 'worker' is executing