Package com.google.api.gax.retrying

Class DirectRetryingExecutor<ResponseT>

java.lang.Object

com.google.api.gax.retrying.DirectRetryingExecutor<ResponseT>

Type Parameters:

ResponseT - response type

All Implemented Interfaces:

RetryingExecutor<ResponseT>, RetryingExecutorWithContext<ResponseT>

public class DirectRetryingExecutor<ResponseT>
extends Object
implements RetryingExecutorWithContext<ResponseT>

The retry executor which executes attempts in the current thread, potentially causing the current thread to sleep for the specified amount of time before execution.

This class is thread-safe.

Constructor Summary

Constructors

Constructor	Description
DirectRetryingExecutor(RetryAlgorithm<ResponseT> retryAlgorithm)	Creates a new direct retrying executor instance, which will be using retryAlgorithm to determine retrying strategy.

Method Summary

Modifier and Type	Method	Description
RetryingFuture<ResponseT>	createFuture(Callable<ResponseT> callable)	Creates a RetryingFuture, which is a facade, returned to the client code to wait for any retriable operation to complete.
RetryingFuture<ResponseT>	createFuture(Callable<ResponseT> callable, RetryingContext context)	Creates a RetryingFuture, which is a facade, returned to the client code to wait for any retriable operation to complete.
protected void	sleep(Duration delay)	This method simply calls Thread.sleep(long).
ApiFuture<ResponseT>	submit(RetryingFuture<ResponseT> retryingFuture)	Submits an attempt for execution in the current thread, causing the current thread to sleep for the specified by the RetryingFuture.getAttemptSettings() amount of time.

Methods inherited from class java.lang.Object

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

Constructor Details

DirectRetryingExecutor

public DirectRetryingExecutor(RetryAlgorithm<ResponseT> retryAlgorithm)

Creates a new direct retrying executor instance, which will be using retryAlgorithm to determine retrying strategy.

Parameters:

retryAlgorithm - retry algorithm to use for attempts execution

Throws:

NullPointerException - if retryAlgorithm is null

Method Details

createFuture

public RetryingFuture<ResponseT> createFuture(Callable<ResponseT> callable)

Creates a RetryingFuture, which is a facade, returned to the client code to wait for any retriable operation to complete. The future is bounded to this executor instance.

Specified by:

createFuture in interface RetryingExecutor<ResponseT>

Parameters:

callable - the actual callable, which should be executed in a retriable context

Returns:

retrying future facade

createFuture

public RetryingFuture<ResponseT> createFuture(Callable<ResponseT> callable,
 RetryingContext context)

Creates a RetryingFuture, which is a facade, returned to the client code to wait for any retriable operation to complete. The future is bounded to this executor instance.

Specified by:

createFuture in interface RetryingExecutorWithContext<ResponseT>

Parameters:

callable - the actual callable, which should be executed in a retriable context

Returns:

retrying future facade

submit

public ApiFuture<ResponseT> submit(RetryingFuture<ResponseT> retryingFuture)

Submits an attempt for execution in the current thread, causing the current thread to sleep for the specified by the RetryingFuture.getAttemptSettings() amount of time. As result, this method completes execution only after the specified retryingFuture completes.

Specified by:

submit in interface RetryingExecutor<ResponseT>

Parameters:

retryingFuture - the future previously returned by createFuture(Callable, RetryingContext)

Returns:

returns completed retryingFuture

sleep

protected void sleep(Duration delay)
              throws InterruptedException

This method simply calls Thread.sleep(long).

Parameters:

delay - time to sleep

Throws:

InterruptedException - if any thread has interrupted the current thread