public function processRecommendation(NodeInterface $input, RecommendationEngine $engine)
{
$recommendations = new Recommendations();
$this->stopwatch->start('discovery');
$discoveryResult = $this->discoveryExecutor->processDiscovery($input, $engine->getDiscoveryEngines());
foreach ($engine->getDiscoveryEngines() as $discoveryEngine) {
$recommendations->merge($discoveryEngine->produceRecommendations($input, $discoveryResult));
}
$discoveryTime = $this->stopwatch->stop('discovery');
$this->removeIrrelevant($input, $engine, $recommendations);
$this->stopwatch->start('post_process');
$postProcessResult = $this->postProcessExecutor->execute($input, $recommendations, $engine);
foreach ($engine->getPostProcessors() as $postProcessor) {
foreach ($recommendations->getItems() as $recommendation) {
if ($postProcessor instanceof CypherAwarePostProcessor) {
$tag = sprintf('post_process_%s_%d', $postProcessor->name(), $recommendation->item()->identity());
$postProcessor->postProcess($input, $recommendation, $postProcessResult->get($tag));
} else {
$postProcessor->postProcess($input, $recommendation);
}
}
}
$pPTime = $this->stopwatch->stop('post_process');
$recommendations->sort();
return $recommendations;
}
private function doDiscovery(Node $input, RecommendationEngine $engine, Context $context)
{
$recommendations = new Recommendations($context);
$context->getStatistics()->startDiscovery();
$result = $this->discoveryExecutor->processDiscovery($input, $engine->getDiscoveryEngines(), $engine->getBlacklistBuilders(), $context);
foreach ($engine->getDiscoveryEngines() as $discoveryEngine) {
$recommendations->merge($discoveryEngine->produceRecommendations($input, $result, $context));
}
$context->getStatistics()->stopDiscovery();
$blacklist = $this->buildBlacklistedNodes($result, $engine);
$this->removeIrrelevant($input, $engine, $recommendations, $blacklist);
return $recommendations;
}
