com.goebl.david

Class RetryManager

java.lang.Object

com.goebl.david.RetryManager

public class RetryManager
extends Object

Decides whether a request should be retried or not.
If you need other behaviour, just extend this class.

Since:

27.04.14.

Field Summary

Fields

Modifier and Type	Field and Description
protected static int[]	BACKOFF seconds to wait until next retry

Constructor Summary

Constructors

Constructor and Description
RetryManager()

Method Summary

Modifier and Type	Method and Description
boolean	isRecoverable(WebbException webbException) Analyzes whether the cause of an exception is worth retrying the request.
boolean	isRetryUseful(Response response) Indicates whether it would possibly make sense to retry the request.
void	wait(int retry) Implementation for the actual wait (depends on the current retry sequence).

Methods inherited from class java.lang.Object

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

Field Detail

BACKOFF

protected static final int[] BACKOFF

seconds to wait until next retry

Constructor Detail

RetryManager

public RetryManager()

Method Detail

isRetryUseful

public boolean isRetryUseful(Response response)

Indicates whether it would possibly make sense to retry the request.

Parameters:

response - the outcome of the request

Returns:

true only in case of temporary (server-side) errors where retrying the request could succeed.

isRecoverable

public boolean isRecoverable(WebbException webbException)

Analyzes whether the cause of an exception is worth retrying the request.
This is not covering all situations and in case of doubt the exception is considered not recoverable. @YOU: if you find a case where an exception is recoverable, create an issue!

Parameters:

webbException - the exception to analyze

Returns:

true if it makes sense for the request to be retried again.

wait

public void wait(int retry)

Implementation for the actual wait (depends on the current retry sequence).

Parameters:

retry - the retry sequence (starts with 0 for the first retry).