/**
* {@inheritdoc}
*/
public function start()
{
$dispatcher = $this->getDispatcher();
$sourceEvent = new SourcePipelineEvent();
$sourceEvent->setContext($this->getContext());
$dispatcher->dispatch($this->getEventName(self::EVENT_SUFFIX_SOURCE), $sourceEvent);
$this->setContext($sourceEvent->getContext());
$sources = $sourceEvent->getSources();
$outputs = [];
$startEvent = new StartPipelineEvent();
$startEvent->setContext($this->getContext());
$startEvent->setItemCount($this->countSourceItems($sources));
$dispatcher->dispatch($this->getEventName(self::EVENT_SUFFIX_START), $startEvent);
$this->setContext($startEvent->getContext());
$this->progressBar && $this->progressBar->start($this->countSourceItems($sources));
foreach ($sources as $source) {
foreach ($source as $item) {
$itemEvent = new ItemPipelineEvent($item);
$itemEvent->setContext($this->getContext());
$dispatcher->dispatch($this->getEventName(self::EVENT_SUFFIX_MODIFY), $itemEvent);
$dispatcher->dispatch($this->getEventName(self::EVENT_SUFFIX_CONSUME), $itemEvent);
$output = $itemEvent->getOutput();
if ($output !== null) {
$outputs[] = $output;
}
$this->setContext($itemEvent->getContext());
$this->progressBar && $this->progressBar->advance();
}
}
$finishEvent = new FinishPipelineEvent();
$finishEvent->setContext($this->getContext());
$dispatcher->dispatch($this->getEventName(self::EVENT_SUFFIX_FINISH), $finishEvent);
$this->progressBar && $this->progressBar->finish();
return ['outputs' => $outputs];
}
/**
* Returns diff provider.
*
* @param SourcePipelineEvent $event
*/
public function onSource(SourcePipelineEvent $event)
{
$event->addSource($this->provider);
}
/**
* Test addSource with non \Traversable.
*
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage source must be of type \Traversable|array
*/
public function testAddSourceNotTraversable()
{
$event = new SourcePipelineEvent();
$event->addSource('foo');
}
/**
* Gets data and adds source.
*
* @param SourcePipelineEvent $event
*/
public function onSource(SourcePipelineEvent $event)
{
$event->addSource($this->getDocuments());
}
/**
* Gives data for test.
*
* @param SourcePipelineEvent $event
*/
public function onSource(SourcePipelineEvent $event)
{
$event->addSource(json_decode(file_get_contents(__DIR__ . '/dummyData.json')));
}