spawnUrl = false;
startRequests.clear();
for (Request request : UrlUtils.convertToRequests(urls)) {
addRequest(request);
}
CollectorPipeline collectorPipeline = getCollectorPipeline();
pipelines.add(collectorPipeline);
run();
spawnUrl = true;
destroyWhenExit = true;
return collectorPipeline.getCollected();
}