Package de.dlr.proseo.storagemgr.model

Class DefaultRetryStrategy<T>

java.lang.Object

de.dlr.proseo.storagemgr.model.DefaultRetryStrategy<T>

public class DefaultRetryStrategy<T>
extends Object

A retry strategy for executing atomic operations. The class provides a mechanism to retry a specified command multiple times until it succeeds or reaches the configured maximum number of attempts.

Author:

Denys Chaykovskiy

Constructor Summary

Constructors

Constructor	Description
DefaultRetryStrategy(AtomicCommand<T> atomicCommand, int maxAttempts, long waitTime)	The constructor initializes the retry strategy with the atomic command to be executed, the maximum number of attempts, and the wait time between each attempt.

Method Summary

Modifier and Type	Method	Description
T	execute()	Tries to execute the atomic command and returns its result if successful.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultRetryStrategy

public DefaultRetryStrategy(AtomicCommand<T> atomicCommand,
 int maxAttempts,
 long waitTime)

The constructor initializes the retry strategy with the atomic command to be executed, the maximum number of attempts, and the wait time between each attempt.

Parameters:

atomicCommand - atomic command

maxAttempts - maximal attempts

waitTime - wait time between retries

Method Details

execute

public T execute()
          throws IOException

Tries to execute the atomic command and returns its result if successful. If the atomic command throws an IOException, the retry strategy catches and records it. It repeats the execution of the atomic command for a specified number of attempts, waiting for a certain time interval between each attempt. If the maximum number of attempts is reached without a successful execution, the retry strategy throws the recorded exception.

Returns:

string with result of strategy execution

Throws:

IOException - if atom command was not successful maxAttempts times