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<?php declare(strict_types=1);
/*
* This file is part of the CleverAge/ProcessBundle package.
*
* Copyright (C) 2017-2021 Clever-Age
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace CleverAge\ProcessBundle\Task;
use CleverAge\ProcessBundle\Model\AbstractConfigurableTask;
use CleverAge\ProcessBundle\Model\FlushableTaskInterface;
use CleverAge\ProcessBundle\Model\ProcessState;
use Symfony\Component\OptionsResolver\Exception\AccessException;
use Symfony\Component\OptionsResolver\Exception\ExceptionInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
/**
* Group elements by batch of a defined size.
*
* Simple example of how to manage an internal buffer for batch processing.
*
* ##### Task reference
*
* * **Service**: `CleverAge\ProcessBundle\Task\SimpleBatchTask`
* * **Flushable task**
* * **Input**: `any`
* * **Output**: `array`, containing received inputs since previous flush
*
* ##### Options
*
* * `batch_count` (`int` _defaults to_ `10`): description
*
*
* @author Vincent Chalnot <vchalnot@clever-age.com>
*/
class SimpleBatchTask extends AbstractConfigurableTask implements FlushableTaskInterface
{
/** @var array */
protected $elements = [];
/**
* {@inheritDoc}
* @internal
*/
public function flush(ProcessState $state)
{
if (0 === \count($this->elements)) {
$state->setSkipped(true);
} else {
$state->setOutput($this->elements);
$this->elements = [];
}
}
/**
* {@inheritDoc}
* @internal
*/
public function execute(ProcessState $state)
{
$batchCount = $this->getOption($state, 'batch_count');
$this->elements[] = $state->getInput();
if (null !== $batchCount && \count($this->elements) >= $batchCount) {
$state->setOutput($this->elements);
$this->elements = [];
} else {
$state->setSkipped(true);
}
}
/**
* {@inheritDoc}
* @internal
*/
protected function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(
[
'batch_count' => 10,
]
);
}
}