/**
* {@inheritdoc}
*/
public function execute(StepExecutionWarningHandlerInterface $warningHandler = null)
{
$itemsToWrite = [];
$writeCount = 0;
$scheduleWrite = false;
try {
$stopExecution = false;
while (!$stopExecution) {
try {
$readItem = $this->reader->read();
if (null === $readItem) {
$stopExecution = true;
continue;
}
} catch (InvalidItemException $e) {
$this->handleStepExecutionWarning($this->reader, $e, $warningHandler);
continue;
}
$processedItem = $this->process($readItem, $warningHandler);
if (null !== $processedItem) {
$itemsToWrite[] = $processedItem;
$writeCount++;
if (0 === $writeCount % $this->batchSize || $scheduleWrite) {
$this->write($itemsToWrite, $warningHandler);
$itemsToWrite = [];
$scheduleWrite = false;
}
}
if ($this->reader instanceof IteratorBasedReader) {
$sourceIterator = $this->reader->getSourceIterator();
if ($sourceIterator instanceof SubordinateReaderInterface && $sourceIterator->writeRequired()) {
$scheduleWrite = true;
}
}
}
if (count($itemsToWrite) > 0) {
$this->write($itemsToWrite, $warningHandler);
}
$this->ensureResourcesReleased($warningHandler);
} catch (\Exception $error) {
$this->ensureResourcesReleased($warningHandler);
throw $error;
}
}
